/**
 * @license
 * Mandala Studio Styles
 * Copyright (c) 2024-2026 Jolly Grid, LLC. All Rights Reserved.
 * 
 * PROPRIETARY AND CONFIDENTIAL - Unauthorized use prohibited.
 * For licensing: contact@jollygrid.com
 */

/* =========================================
   Z-INDEX SCALE
   Centralized z-index management to prevent conflicts
   ========================================= */
:root {
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-sidebar: 500;
    --z-sidebar-flyout: 550;
    --z-sidebar-backdrop: 540;
    --z-floating-toolbar: 600;
    --z-modal-backdrop: 900;
    --z-modal: 1000;
    --z-tooltip: 1100;
    --z-toast: 9000;
    --z-loader: 10000;
}

/* =========================================
   ACCESSIBILITY UTILITIES
   ========================================= */

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color, #0e639c);
    color: #fff;
    padding: 12px 24px;
    border-radius: 0 0 8px 8px;
    z-index: calc(var(--z-loader) + 1);
    text-decoration: none;
    font-weight: 600;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #fff;
    outline-offset: 2px;
}

/* Visually hidden but accessible to screen readers */
.visually-hidden,
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Focus visible for keyboard users */
:focus-visible {
    outline: 2px solid var(--accent-color, #0e639c);
    outline-offset: 2px;
}

/* Remove focus outline for mouse users */
:focus:not(:focus-visible) {
    outline: none;
}

/* =========================================
   Mandala Studio - Standalone Application
   Supports Light and Dark Themes
   ========================================= */

/* ========================================
   DARK THEME (Default)
   ======================================== */
:root,
[data-theme="dark"] {
    /* Adobe-like Dark Theme Colors */
    --app-bg: #1e1e1e;
    /* Main background */
    --panel-bg: #252526;
    /* Panels/Sidebars */
    --header-bg: #3c3c3c;
    /* Top bar */
    --canvas-bg: #181818;
    /* Canvas area background */

    --text-color: #cccccc;
    /* Primary text */
    --text-primary: #cccccc;
    /* Primary text alias */
    --text-secondary: #a0a0a0;
    /* Secondary text (buttons, icons) */
    --text-muted: #858585;
    /* Muted text */
    --text-hover: #ffffff;
    /* Hover text */

    --accent-color: #0e639c;
    /* Selection/Active state */
    --accent-hover: #1177bb;
    --accent-text: #ffffff;

    --border-color: #3e3e42;
    /* Borders */
    --input-bg: #3c3c3c;
    /* Inputs */
    --input-border: #3e3e42;

    --danger-color: #f14c4c;

    /* Canvas specific */
    --canvas-stroke-color: #6c5ce7;
    /* Default stroke color for new strokes - PURPLE for dark theme */
    --guide-color: rgba(102, 102, 136, 0.4);
    --guide-color-strong: rgba(102, 102, 136, 0.6);
    --symmetry-line-color: #00ffff;
    /* Cyan symmetry lines */
    --bisecting-line-color: #ffffff;
    /* White bisecting lines */
    --circle-guide-color: #ffffff;
    /* White circles */
    --center-dot-color: #ff6b6b;

    /* Preview panel checkerboard */
    --preview-checker-light: #1a1a2e;
    --preview-checker-dark: #0d0d1a;
    --preview-strip-bg: rgba(0, 0, 0, 0.3);
    --preview-text-color: rgba(255, 255, 255, 0.5);
    --preview-divider-color: rgba(0, 212, 255, 0.3);

    /* Button states */
    --btn-bg: #3c3c3c;
    --btn-hover-bg: #4a4a4a;
    --btn-active-bg: #0e639c;

    /* Scrollbar */
    --scrollbar-track: rgba(255, 255, 255, 0.05);
    --scrollbar-thumb: rgba(255, 255, 255, 0.15);
    --scrollbar-thumb-hover: rgba(255, 255, 255, 0.25);

    /* Overlay/highlight colors (for elements on panels) */
    --overlay-subtle: rgba(255, 255, 255, 0.02);
    --overlay-light: rgba(255, 255, 255, 0.04);
    --overlay-medium: rgba(255, 255, 255, 0.08);
    --overlay-strong: rgba(255, 255, 255, 0.1);
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-active: rgba(255, 255, 255, 0.5);
    --input-track: #444444;
    --input-thumb: #d4d4d4;
    --input-thumb-hover: #ffffff;
    --slider-track: #444444;
    /* Slider track */

    /* Panel shadows */
    --panel-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
    --flyout-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
    --backdrop-bg: rgba(0, 0, 0, 0.5);

    /* Layout Dimensions */
    --header-height: 36px;
    --toolbar-width: 42px;
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 44px;
    --statusbar-height: 22px;

    /* Theme toggle icon */
    --theme-icon-sun: block;
    --theme-icon-moon: none;
}

/* ========================================
   LIGHT THEME
   ======================================== */
[data-theme="light"] {
    /* Light Theme Colors */
    --app-bg: #f5f5f5;
    /* Main background */
    --panel-bg: #ffffff;
    /* Panels/Sidebars */
    --header-bg: #e8e8e8;
    /* Top bar */
    --canvas-bg: #ffffff;
    /* Canvas area background */

    --text-color: #333333;
    /* Primary text */
    --text-primary: #333333;
    /* Primary text alias */
    --text-secondary: #555555;
    /* Secondary text (buttons, icons) */
    --text-muted: #666666;
    /* Muted text */
    --text-hover: #000000;
    /* Hover text */

    --accent-color: #0066cc;
    /* Selection/Active state */
    --accent-hover: #0077dd;
    --accent-text: #ffffff;

    --border-color: #d4d4d4;
    /* Borders */
    --input-bg: #ffffff;
    /* Inputs */
    --input-border: #cccccc;

    --danger-color: #dc3545;

    /* Canvas specific */
    --canvas-stroke-color: #000000;
    /* Default stroke color for new strokes - BLACK for light theme */
    --guide-color: rgba(108, 92, 231, 0.2);
    /* Purple guides visible on white */
    --guide-color-strong: rgba(108, 92, 231, 0.4);
    --symmetry-line-color: #0066cc;
    /* Strong blue - high contrast on white */
    --bisecting-line-color: #cc3333;
    /* Deep red - clearly visible for mirror lines */
    --circle-guide-color: #339966;
    /* Forest green - distinct from other guides */
    --center-dot-color: #e74c3c;

    /* Preview panel checkerboard */
    --preview-checker-light: #ffffff;
    --preview-checker-dark: #e8e8e8;
    --preview-strip-bg: rgba(0, 0, 0, 0.08);
    --preview-text-color: rgba(0, 0, 0, 0.6);
    --preview-divider-color: rgba(0, 102, 204, 0.4);

    /* Button states */
    --btn-bg: #e0e0e0;
    --btn-hover-bg: #d0d0d0;
    --btn-active-bg: #0066cc;

    /* Scrollbar */
    --scrollbar-track: rgba(0, 0, 0, 0.05);
    --scrollbar-thumb: rgba(0, 0, 0, 0.15);
    --scrollbar-thumb-hover: rgba(0, 0, 0, 0.25);

    /* Overlay/highlight colors (for elements on panels) */
    --overlay-subtle: rgba(0, 0, 0, 0.02);
    --overlay-light: rgba(0, 0, 0, 0.04);
    --overlay-medium: rgba(0, 0, 0, 0.06);
    --overlay-strong: rgba(0, 0, 0, 0.08);
    --border-subtle: rgba(0, 0, 0, 0.1);
    --border-active: rgba(0, 0, 0, 0.3);
    --input-track: #cccccc;
    --input-thumb: #666666;
    --input-thumb-hover: #333333;
    --slider-track: #cccccc;
    /* Slider track */

    /* Panel shadows - softer for light theme */
    --panel-shadow: -2px 0 12px rgba(0, 0, 0, 0.15);
    --flyout-shadow: -2px 0 10px rgba(0, 0, 0, 0.12);
    --backdrop-bg: rgba(0, 0, 0, 0.25);

    /* Layout Dimensions - explicitly set for light theme consistency */
    --header-height: 36px;
    --toolbar-width: 42px;
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 44px;
    --statusbar-height: 22px;

    /* Theme toggle icon */
    --theme-icon-sun: none;
    --theme-icon-moon: block;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Global touch behavior for all interactive elements */
button,
input,
select,
textarea,
a,
[role="button"] {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

html,
body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 13px;
    background: var(--app-bg);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    /* Prevent all touch zoom/pan gestures on iPad */
    touch-action: manipulation;
    -webkit-touch-callout: none;
    -ms-touch-action: manipulation;
}

/* =========================================
   Utility Classes
   ========================================= */
.hidden {
    display: none !important;
}

/* =========================================
   App Container - Fixed Full Screen
   ========================================= */
.mandala-studio-app {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    background: var(--app-bg);
    overflow: hidden;
    /* Prevent double-tap zoom and pinch zoom on iOS */
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

/* =========================================
   Top Bar
   ========================================= */
.studio-topbar {
    /* Include safe area in height for iOS status bar */
    height: calc(var(--header-height) + env(safe-area-inset-top, 0px));
    min-height: calc(var(--header-height) + env(safe-area-inset-top, 0px));
    max-height: calc(var(--header-height) + env(safe-area-inset-top, 0px));
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
    /* Add safe area padding for iOS notch/status bar */
    padding-top: env(safe-area-inset-top, 0px);
    flex-shrink: 0;
    z-index: 100;
    /* Prevent double-tap zoom on header buttons */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.topbar-left,
.topbar-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Mobile Clear Canvas button - hidden on desktop, visible on mobile */
#btn-clear-mobile {
    display: none;
}

/* Online Users Indicator */
.online-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px 4px 8px;
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 12px;
    cursor: default;
    transition: all 0.2s;
    font-size: 12px;
    color: var(--text-color);
}

.online-indicator:hover {
    background: rgba(34, 197, 94, 0.2);
    border-color: rgba(34, 197, 94, 0.5);
}

.online-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.6);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 6px rgba(34, 197, 94, 0.6);
    }

    50% {
        opacity: 0.7;
        box-shadow: 0 0 10px rgba(34, 197, 94, 0.9);
    }
}

.online-count {
    font-weight: 600;
    font-size: 11px;
    opacity: 0.9;
}

/* Theme Toggle Button - uses icon-btn base styles */
#btn-theme-toggle {
    /* Inherits from .icon-btn: 26x26, flex centering */
    position: relative;
}

#btn-theme-toggle:hover {
    background: var(--btn-hover-bg);
}

/* Show/hide sun and moon icons based on theme */
#btn-theme-toggle .theme-icon-sun {
    display: var(--theme-icon-sun);
    color: #fbbf24;
}

#btn-theme-toggle .theme-icon-moon {
    display: var(--theme-icon-moon);
    color: #60a5fa;
}

/* Quick Brush Controls - Center of Topbar */
.topbar-center {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-width: 0;
    /* Allow shrinking */
}

.quick-brush-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    height: 30px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.quick-color-picker {
    display: flex;
    align-items: center;
    gap: 6px;
}

.quick-color-picker input[type="color"] {
    width: 28px;
    height: 28px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    padding: 0;
    background: none;
    -webkit-appearance: none;
}

.quick-color-picker input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.quick-color-picker input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.quick-color-swatches {
    display: flex;
    align-items: center;
    gap: 3px;
}

.quick-swatch {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.15s, border-color 0.15s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.quick-swatch:hover {
    transform: scale(1.15);
}

.quick-swatch:active {
    transform: scale(1.2);
}

.quick-swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.3);
}

/* ========== Color Circle Button (Topbar) ========== */
.color-circle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    padding: 0;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
}

.color-circle-btn:hover {
    border-color: var(--accent-color);
    transform: scale(1.08);
}

.color-circle-btn:active {
    transform: scale(0.95);
}

.color-circle {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #6c5ce7;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: background-color 0.2s, background-image 0.2s;
    position: relative;
}

/* Tool mode indicators */
.color-circle.mode-brush {
    /* Default - solid color */
}

.color-circle.mode-fill {
    /* Solid fill - add a subtle inner ring */
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.color-circle.mode-pattern {
    /* Pattern mode - show pattern */
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.color-circle.mode-eraser {
    /* Eraser - striped pattern */
    background: repeating-linear-gradient(45deg,
            #fff,
            #fff 2px,
            #ff6b6b 2px,
            #ff6b6b 4px) !important;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ========== Quick Fill Info (Topbar) ========== */
.quick-fill-info {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-secondary);
}

.fill-mode-label {
    color: var(--text-muted);
    font-weight: 500;
}

.fill-pattern-name {
    color: var(--accent-color);
    font-weight: 600;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.quick-fill-info.pattern-mode .fill-mode-label {
    color: var(--accent-color);
}

.quick-size-control {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.quick-size-icon {
    font-size: 8px;
    color: var(--text-muted);
    transition: font-size 0.15s;
    flex-shrink: 0;
}

.quick-size-control input[type="range"] {
    width: 60px;
    height: 3px;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    cursor: pointer;
    margin: 0;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.quick-size-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.15s;
}

.quick-size-control input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.quick-size-control input[type="range"]::-moz-range-thumb {
    width: 10px;
    height: 10px;
    background: var(--accent-color);
    border-radius: 50%;
    border: none;
    cursor: pointer;
}

.quick-size-value {
    font-size: 10px;
    color: var(--text-color);
    min-width: 16px;
    text-align: center;
    font-weight: 600;
    flex-shrink: 0;
}

/* ========== Quick Background Control (Topbar) ========== */
.quick-bg-control {
    display: flex;
    align-items: center;
    gap: 6px;
}

.quick-bg-control>i {
    font-size: 12px;
    color: var(--text-muted);
}

.quick-bg-swatches {
    display: flex;
    gap: 4px;
}

.quick-bg-swatch {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.15s;
}

.quick-bg-swatch:hover {
    transform: scale(1.15);
}

.quick-bg-swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.quick-bg-custom {
    width: 20px;
    height: 20px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
    padding: 0;
}

.quick-bg-custom::-webkit-color-swatch-wrapper {
    padding: 1px;
}

.quick-bg-custom::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.topbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-hover);
    padding: 0 8px;
}

.topbar-brand i {
    color: #00b4d8;
    font-size: 16px;
}

.separator {
    width: 1px;
    height: 18px;
    background: var(--border-color);
    margin: 0 6px;
}

.tool-group {
    display: flex;
    align-items: center;
    gap: 2px;
}

/* =========================================
   Icon Button - Base Styles
   Production-ready touch support
   ========================================= */
.icon-btn {
    width: 26px;
    height: 26px;
    background: transparent;
    border: none;
    color: var(--text-color);
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: background 0.1s, transform 0.1s;
    /* Critical for mobile touch - prevents double-tap zoom and 300ms delay */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -webkit-user-select: none;
    user-select: none;
    /* Ensure button is always clickable */
    position: relative;
    z-index: 1;
}

.icon-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

/* Active state for touch feedback */
.icon-btn:active:not(:disabled) {
    transform: scale(0.95);
    background: rgba(255, 255, 255, 0.15);
}

.icon-btn:disabled {
    opacity: 0.4;
    cursor: default;
    pointer-events: none;
}

.icon-btn.danger:hover {
    background: var(--danger-color);
    color: white;
}

/* Warning button (reset settings) - orange/yellow */
.icon-btn.warning {
    color: #f39c12;
}

.icon-btn.warning:hover {
    background: #f39c12;
    color: white;
}

/* Refresh/clear cache button - cyan/teal */
.icon-btn.refresh-btn {
    color: #17a2b8;
}

.icon-btn.refresh-btn:hover {
    background: #17a2b8;
    color: white;
}

/* Fullscreen button */
#btn-fullscreen .fullscreen-compress {
    display: none;
}

:fullscreen #btn-fullscreen .fullscreen-expand,
:-webkit-full-screen #btn-fullscreen .fullscreen-expand {
    display: none;
}

:fullscreen #btn-fullscreen .fullscreen-compress,
:-webkit-full-screen #btn-fullscreen .fullscreen-compress {
    display: inline-block;
}

/* Install App button - green accent to draw attention */
.icon-btn.install-btn {
    color: #22c55e;
    animation: pulse-install 2s ease-in-out infinite;
}

.icon-btn.install-btn:hover {
    background: #22c55e;
    color: white;
    animation: none;
}

@keyframes pulse-install {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

/* Hide install button when running as PWA */
html.pwa-standalone #btn-install-app {
    display: none !important;
}

.zoom-level {
    font-size: 11px;
    min-width: 40px;
    text-align: center;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 3px;
    transition: background 0.1s, color 0.1s;
}

.zoom-level:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

/* ============================================
   HEADER ACTION BUTTONS
   Consistent styling for Export, Gallery, Publish, Record
   ============================================ */

/* Export Button (Primary Action) */
.primary-btn {
    height: 26px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    padding: 0 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    flex-shrink: 0;
}

.primary-btn:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.5);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: scale(0.95);
}

.primary-btn i {
    font-size: 11px;
}

/* Inspiration/Browse Showcase Button - icon button with accent color */
.inspiration-btn {
    background: linear-gradient(135deg, #06b6d4 0%, #0ea5e9 100%) !important;
    color: white !important;
    text-decoration: none;
}

.inspiration-btn:hover {
    background: linear-gradient(135deg, #0891b2 0%, #0284c7 100%) !important;
    color: white !important;
    text-decoration: none;
}

/* Gallery Button (Browse Showcase) */
.gallery-btn {
    height: 26px;
    background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    color: white;
    border: none;
    padding: 0 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
    text-decoration: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    flex-shrink: 0;
}

.gallery-btn:hover {
    background: linear-gradient(135deg, #0284c7 0%, #0891b2 100%);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.5);
    transform: translateY(-1px);
    color: white;
    text-decoration: none;
}

.gallery-btn:active {
    transform: scale(0.95);
}

.gallery-btn i {
    font-size: 11px;
}

/* Publish Button (Primary CTA) */
.showcase-btn {
    height: 26px;
    background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
    color: white;
    border: none;
    padding: 0 10px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -webkit-user-select: none;
    user-select: none;
    flex-shrink: 0;
}

/* Large Publish Button - More Prominent (primary CTA) */
.showcase-btn.showcase-btn-large {
    height: 26px;
    padding: 0 12px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.showcase-btn.showcase-btn-large i {
    font-size: 11px;
}

.showcase-btn:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #9333ea 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.5);
    transform: translateY(-1px);
}

.showcase-btn:active {
    transform: scale(0.95);
}

.showcase-btn i {
    font-size: 11px;
}

/* Record Drawing Button */
.record-btn {
    height: 26px;
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    color: white;
    border: none;
    padding: 0 14px;
    border-radius: 3px;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -webkit-user-select: none;
    user-select: none;
}

/* Small Record Button - Icon Only (always circular, consistent across all devices) */
.record-btn.record-btn-small {
    width: 28px !important;
    height: 28px !important;
    min-width: 28px;
    min-height: 28px;
    padding: 0 !important;
    justify-content: center;
    border-radius: 50% !important;
    flex-shrink: 0;
}

.record-btn.record-btn-small i {
    font-size: 10px !important;
    margin: 0;
}

.record-btn:hover {
    background: linear-gradient(135deg, #dc2626 0%, #ea580c 100%);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.5);
    transform: translateY(-1px);
}

.record-btn:active {
    transform: scale(0.95);
}

.record-btn i {
    font-size: 11px;
}

.record-btn.recording {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    animation: pulse-red 1.5s ease-in-out infinite;
}

.record-btn.recording i {
    animation: none;
}

@keyframes pulse-red {

    0%,
    100% {
        box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
    }

    50% {
        box-shadow: 0 4px 20px rgba(239, 68, 68, 0.8);
    }
}

/* Video Record Button - Clean professional design */
.video-record-wrapper {
    position: relative;
}

.video-record-btn {
    height: 28px;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    border: none;
    padding: 0 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 6px rgba(239, 68, 68, 0.3);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -webkit-user-select: none;
    user-select: none;
}

.video-record-btn:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    box-shadow: 0 3px 10px rgba(239, 68, 68, 0.5);
    transform: translateY(-1px);
}

.video-record-btn:active {
    transform: scale(0.97);
}

.video-record-btn i:first-child {
    font-size: 11px;
}

.video-record-btn .caret {
    font-size: 8px;
    opacity: 0.8;
    margin-left: 2px;
}

/* Recording states */
.video-record-btn.recording {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    animation: pulse-record 1.5s ease-in-out infinite;
}

.video-record-btn.recording i:first-child::before {
    content: "\f04d";
    /* Stop icon */
}

.video-record-btn.recording .caret {
    display: none;
}

.video-record-btn.screen-recording {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    animation: pulse-screen 1.5s ease-in-out infinite;
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
}

.video-record-btn.screen-recording i:first-child::before {
    content: "\f04d";
    /* Stop icon */
}

.video-record-btn.screen-recording .caret {
    display: none;
}

@keyframes pulse-record {

    0%,
    100% {
        box-shadow: 0 2px 6px rgba(239, 68, 68, 0.3);
    }

    50% {
        box-shadow: 0 4px 16px rgba(239, 68, 68, 0.7);
    }
}

@keyframes pulse-screen {

    0%,
    100% {
        box-shadow: 0 2px 6px rgba(59, 130, 246, 0.3);
    }

    50% {
        box-shadow: 0 4px 16px rgba(59, 130, 246, 0.7);
    }
}

/* Record Dropdown Menu */
.record-dropdown {
    min-width: 240px;
    right: 0;
    left: auto;
    padding: 6px 0;
}

.record-dropdown .dropdown-section-header {
    padding: 8px 14px 6px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.record-dropdown .dropdown-section-header:not(:first-child) {
    border-top: 1px solid var(--border-color);
    margin-top: 6px;
    padding-top: 10px;
}

.record-mode-option {
    display: flex;
    align-items: center;
    padding: 10px 14px !important;
    gap: 10px;
    cursor: pointer;
    transition: background 0.15s ease;
}

.record-mode-option>i {
    width: 20px;
    font-size: 14px;
    text-align: center;
    color: var(--text-muted);
    flex-shrink: 0;
}

.record-mode-option .mode-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.record-mode-option .mode-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-color);
}

.record-mode-option .mode-hint {
    font-size: 10px;
    color: var(--text-muted);
    line-height: 1.3;
}

.record-mode-option:hover {
    background: var(--hover-bg);
}

.record-mode-option.active {
    background: rgba(239, 68, 68, 0.1);
}

.record-mode-option.active>i {
    color: #ef4444;
}

.record-mode-option.active .mode-name {
    color: #ef4444;
}

/* Quality options */
.quality-options {
    display: flex;
    gap: 6px;
    padding: 8px 14px;
}

.quality-btn {
    flex: 1;
    padding: 6px 8px;
    font-size: 10px;
    font-weight: 500;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.15s ease;
}

.quality-btn:hover {
    background: var(--hover-bg);
    border-color: var(--accent-color);
}

.quality-btn.active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.3);
}

/* Legacy record button styles (keep for Director Mode UI) */

@keyframes pulse-blue {

    0%,
    100% {
        box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
    }

    50% {
        box-shadow: 0 4px 20px rgba(59, 130, 246, 0.8);
    }
}

/* Dropdown */
.dropdown-wrapper {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    min-width: 200px;
    padding: 5px 0;
    margin-top: 5px;
    border-radius: 4px;
}

.dropdown-menu.open {
    display: block;
}

/* Help Dropdown specific styles */
.help-dropdown-wrapper {
    position: relative;
    z-index: 101;
}

.help-dropdown-wrapper .help-btn {
    cursor: pointer;
}

.help-dropdown {
    min-width: 220px;
    max-height: 400px;
    overflow-y: auto;
}

.dropdown-section-header {
    padding: 6px 15px 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    border-top: 1px solid var(--border-color);
    margin-top: 4px;
}

.dropdown-section-header:first-child {
    border-top: none;
    margin-top: 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    text-align: left;
    padding: 8px 15px;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.1s;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.dropdown-item i {
    width: 16px;
    text-align: center;
    color: var(--text-muted);
}

.dropdown-item:hover {
    background-color: var(--accent-color);
    color: white;
}

.dropdown-item:hover i {
    color: white;
}

/* Danger item styling (clear canvas, delete, etc.) */
.dropdown-item.danger-item {
    color: var(--danger-color, #e74c3c);
}

.dropdown-item.danger-item i {
    color: var(--danger-color, #e74c3c);
}

.dropdown-item.danger-item:hover {
    background-color: var(--danger-color, #e74c3c);
    color: white;
}

.dropdown-item.danger-item:hover i {
    color: white;
}

/* Keyboard shortcut in dropdown item */
.dropdown-item kbd {
    display: inline-block;
    margin-left: auto;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 10px;
    background: var(--bg-tertiary, rgba(0, 0, 0, 0.3));
    border-radius: 3px;
    color: var(--text-muted);
}

.dropdown-item:hover kbd {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Export item row with copy button */
.export-item-row {
    display: flex;
    align-items: stretch;
}

.export-item-row .dropdown-item {
    flex: 1;
    border-radius: 0;
}

.export-item-row .copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    padding: 0;
    background: none;
    border: none;
    border-left: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.export-item-row .copy-btn:hover {
    background-color: var(--accent-color);
    color: white;
}

.export-item-row .copy-btn.copied {
    background-color: var(--success-color, #27ae60);
    color: white;
}

.export-item-row .copy-btn i {
    font-size: 12px;
}

/* Export dropdown toggle option */
.dropdown-toggle-item {
    padding: 8px 15px;
}

.dropdown-toggle-item .toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-color);
}

.dropdown-toggle-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.dropdown-toggle-item .toggle-label:hover {
    color: var(--accent-color);
}

/* Export DPI dropdown */
.dropdown-toggle-item.export-dpi-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dropdown-toggle-item .dpi-label {
    color: var(--text-muted);
    font-size: 12px;
}

.dropdown-toggle-item .dpi-select {
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.dropdown-toggle-item .dpi-select:focus {
    border-color: var(--accent-color);
    outline: none;
}

/* =========================================
   Main Area - Flex Row
   ========================================= */
.studio-main {
    flex: 1;
    display: flex;
    min-height: 0;
    max-height: calc(100vh - var(--header-height) - var(--statusbar-height));
    overflow: hidden;
}

/* =========================================
   Left Toolbar
   ========================================= */
.studio-toolbar {
    width: var(--toolbar-width);
    min-width: var(--toolbar-width);
    background: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px 0;
    gap: 2px;
    flex-shrink: 0;
}

.tool-item {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 3px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.1s;
    position: relative;
    font-size: 14px;
}

.tool-item:hover {
    color: var(--text-hover);
    background-color: rgba(255, 255, 255, 0.08);
}

.tool-item.active {
    color: var(--accent-text);
    background-color: var(--accent-color);
}

.tool-separator {
    width: 20px;
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* =========================================
   Canvas Area
   ========================================= */
.studio-canvas {
    flex: 1;
    background: var(--canvas-bg);
    position: relative;
    overflow: hidden;
    min-width: 0;
}

.canvas-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

#mandala-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
    /* Default fallback */
    /* Prevent browser touch gestures on the canvas */
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    /* SCREEN RECORDING FIX: Force GPU compositing for proper screen capture */
    /* Without this, SVG strokes may not appear in screen recordings */
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Tool-specific cursors - using !important to override default */
#mandala-canvas.cursor-brush {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Ccircle cx='16' cy='16' r='8' fill='none' stroke='white' stroke-width='2'/%3E%3Ccircle cx='16' cy='16' r='8' fill='none' stroke='black' stroke-width='1'/%3E%3Cline x1='16' y1='4' x2='16' y2='8' stroke='white' stroke-width='2'/%3E%3Cline x1='16' y1='24' x2='16' y2='28' stroke='white' stroke-width='2'/%3E%3Cline x1='4' y1='16' x2='8' y2='16' stroke='white' stroke-width='2'/%3E%3Cline x1='24' y1='16' x2='28' y2='16' stroke='white' stroke-width='2'/%3E%3Ccircle cx='16' cy='16' r='2' fill='white'/%3E%3C/svg%3E") 16 16, crosshair !important;
}

#mandala-canvas.cursor-select {
    cursor: default !important;
}

#mandala-canvas.cursor-eraser {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Crect x='8' y='8' width='16' height='16' rx='3' fill='%23ff6b6b' stroke='white' stroke-width='2'/%3E%3Cline x1='11' y1='16' x2='21' y2='16' stroke='white' stroke-width='3'/%3E%3C/svg%3E") 16 16, crosshair !important;
}

#mandala-canvas.cursor-fill {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M8 14 L14 8 L24 18 L18 24 Z' fill='%234ecdc4' stroke='white' stroke-width='2'/%3E%3Cpath d='M6 26 Q4 28 6 28 L10 28 Q12 28 10 26 L8 24' fill='%234ecdc4' stroke='white' stroke-width='1'/%3E%3C/svg%3E") 6 26, crosshair !important;
}

#mandala-canvas.cursor-shapes {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Crect x='6' y='6' width='20' height='20' fill='none' stroke='white' stroke-width='2' stroke-dasharray='4,3'/%3E%3Ccircle cx='6' cy='6' r='3' fill='%236c5ce7'/%3E%3Ccircle cx='26' cy='6' r='3' fill='%236c5ce7'/%3E%3Ccircle cx='6' cy='26' r='3' fill='%236c5ce7'/%3E%3Ccircle cx='26' cy='26' r='3' fill='%236c5ce7'/%3E%3C/svg%3E") 16 16, crosshair !important;
}

#mandala-canvas.cursor-hand {
    cursor: grab !important;
}

#mandala-canvas.cursor-hand.dragging {
    cursor: grabbing !important;
}

#mandala-canvas.cursor-eyedropper {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M26 6 L22 10 L20 8 L18 10 L22 14 L10 26 L6 26 L6 22 L18 10 L20 12 L22 10 L26 6 Z' fill='white' stroke='black' stroke-width='1'/%3E%3Ccircle cx='26' cy='6' r='3' fill='%236c5ce7' stroke='white'/%3E%3C/svg%3E") 6 26, crosshair !important;
}

#mandala-canvas.cursor-motif {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Ccircle cx='16' cy='16' r='5' fill='%236c5ce7' stroke='white' stroke-width='2'/%3E%3Ccircle cx='16' cy='16' r='10' fill='none' stroke='white' stroke-width='2' stroke-dasharray='3,3'/%3E%3Cline x1='16' y1='2' x2='16' y2='6' stroke='white' stroke-width='2'/%3E%3Cline x1='16' y1='26' x2='16' y2='30' stroke='white' stroke-width='2'/%3E%3Cline x1='2' y1='16' x2='6' y2='16' stroke='white' stroke-width='2'/%3E%3Cline x1='26' y1='16' x2='30' y2='16' stroke='white' stroke-width='2'/%3E%3C/svg%3E") 16 16, crosshair !important;
}

#mandala-canvas.cursor-pen {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M8 28 L4 28 L4 24 L20 8 L24 12 L8 28 Z' fill='white' stroke='black' stroke-width='1'/%3E%3Cpath d='M20 8 L24 4 L28 8 L24 12 Z' fill='%236c5ce7' stroke='white' stroke-width='1'/%3E%3C/svg%3E") 4 28, crosshair !important;
}

/* SCREEN RECORDING FIX: Ensure SVG layers are composited correctly */
/* This fixes the issue where strokes don't appear in screen recordings */
#layer-group,
#guide-group,
#ui-group {
    /* Force proper paint ordering for screen capture */
    isolation: isolate;
}

/* =========================================
   Right Sidebar
   ========================================= */
.studio-sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    max-width: var(--sidebar-width);
    background: var(--panel-bg);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    flex-grow: 0;
    height: 100%;
    max-height: 100%;
}

.studio-sidebar::-webkit-scrollbar {
    width: 6px;
}

.studio-sidebar::-webkit-scrollbar-track {
    background: var(--panel-bg);
}

.studio-sidebar::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

/* =========================================
   Collapsible Sidebar - Adobe Style Icon Bar
   For iPads and users who want more canvas space
   ========================================= */

/* Sidebar Toggle Button */
.sidebar-collapse-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 28px;
    background: var(--header-bg);
    border: none;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
    gap: 6px;
    font-size: 10px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-collapse-toggle::before {
    content: 'Collapse';
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-collapse-toggle:hover {
    background: var(--btn-hover-bg);
    color: var(--text-hover);
}

.sidebar-collapse-toggle i {
    font-size: 10px;
    transition: transform 0.2s;
}

/* Icon Strip - Visible when sidebar is collapsed */
.sidebar-icon-strip {
    display: none;
    flex-direction: column;
    width: var(--sidebar-collapsed-width);
    background: var(--panel-bg);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
}

.sidebar-icon-strip::-webkit-scrollbar {
    width: 0;
}

.sidebar-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 40px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
}

.sidebar-icon-btn:hover {
    background: var(--btn-hover-bg);
    color: var(--text-hover);
}

.sidebar-icon-btn.active {
    color: var(--accent-color);
    background: rgba(14, 99, 156, 0.15);
}

.sidebar-icon-btn.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 0 2px 2px 0;
}

.sidebar-icon-btn i {
    font-size: 14px;
}

.sidebar-icon-btn .icon-tooltip {
    position: absolute;
    left: calc(100% + 8px);
    background: var(--header-bg);
    color: var(--text-color);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.15s, visibility 0.15s;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Only show tooltips on hover with mouse (not touch) */
@media (hover: hover) and (pointer: fine) {
    .sidebar-icon-btn:hover .icon-tooltip {
        opacity: 1;
        visibility: visible;
    }
}

/* Explicitly hide tooltips on touch devices */
@media (hover: none),
(pointer: coarse) {
    .sidebar-icon-btn .icon-tooltip {
        display: none !important;
    }
}

/* Expand button at bottom of icon strip */
.sidebar-expand-btn {
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

/* Collapsed Sidebar State */
.studio-sidebar.collapsed {
    display: none;
}

.studio-layout.sidebar-collapsed .sidebar-icon-strip {
    display: flex;
}

.studio-layout.sidebar-collapsed .studio-sidebar {
    display: none;
}

/* Flyout Panel - When clicking icon in collapsed mode */
.sidebar-flyout {
    position: fixed;
    top: var(--header-height);
    right: var(--sidebar-collapsed-width);
    width: 280px;
    max-width: calc(100vw - var(--sidebar-collapsed-width) - var(--toolbar-width) - 20px);
    max-height: calc(100vh - var(--header-height) - var(--statusbar-height));
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px 0 0 8px;
    box-shadow: var(--panel-shadow);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 550;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: opacity 0.2s ease-out, visibility 0.2s, transform 0.2s ease-out;
    /* Prevent touch issues */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.sidebar-flyout.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.sidebar-flyout::-webkit-scrollbar {
    width: 6px;
}

.sidebar-flyout::-webkit-scrollbar-track {
    background: var(--panel-bg);
}

.sidebar-flyout::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

.sidebar-flyout .panel {
    border-bottom: none;
}

.sidebar-flyout .panel-body {
    display: block !important;
}

.sidebar-flyout .panel-header {
    display: none;
}

/* Flyout color tabs - show only icons except active */
.sidebar-flyout .color-tab .tab-label {
    display: none;
}

.sidebar-flyout .color-tab.active .tab-label {
    display: inline;
}

/* Flyout header */
.sidebar-flyout-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-flyout-header span {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-color);
}

.sidebar-flyout-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
}

.sidebar-flyout-close:hover {
    background: var(--btn-hover-bg);
    color: var(--text-hover);
}

/* Flyout backdrop - overlay when flyout is open */
.sidebar-flyout-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--backdrop-bg);
    z-index: 540;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.sidebar-flyout-backdrop.visible {
    display: block;
}

/* Ensure flyout backdrop doesn't show when flyout is hidden */
.sidebar-flyout:not(.visible)+.sidebar-flyout-backdrop {
    display: none !important;
}

/* Panel Container */
.panel {
    border-bottom: 1px solid var(--border-color);
}

.panel.collapsed .panel-body {
    display: none;
}

.panel.collapsed .panel-toggle {
    transform: rotate(-90deg);
}

/* Panel Highlight Effect (when opened from topbar) */
.panel-highlight {
    animation: panel-glow 0.5s ease-out;
}

@keyframes panel-glow {
    0% {
        box-shadow: inset 0 0 0 2px var(--accent-color);
    }

    100% {
        box-shadow: none;
    }
}

/* Panel Header */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    height: 28px;
    background: var(--overlay-subtle);
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-muted);
    transition: background 0.1s;
    -webkit-user-select: none;
    user-select: none;
}

.panel-header span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.panel-header span i {
    font-size: 9px;
    width: 12px;
    text-align: center;
}

.panel-toggle {
    font-size: 8px;
    transition: transform 0.15s;
}

.panel-header:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

/* Panel Body */
.panel-body {
    padding: 8px 10px 10px;
    overflow: hidden;
}

/* Control Row - Inline slider with label */
.ctrl-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.ctrl-row:last-child {
    margin-bottom: 0;
}

/* Control Hint Text */
.ctrl-hint {
    font-size: 10px;
    color: var(--text-muted);
    margin: 2px 0 8px 0;
    padding-left: 2px;
    opacity: 0.7;
    line-height: 1.3;
}

.ctrl-row label {
    font-size: 11px;
    color: var(--text-muted);
    width: 50px;
    flex-shrink: 0;
    white-space: nowrap;
}

.ctrl-row input[type="range"] {
    flex: 1;
    min-width: 60px;
    height: 3px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    margin: 0;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.ctrl-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--panel-bg);
    transition: all 0.1s;
}

.ctrl-row input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--input-thumb-hover);
    transform: scale(1.1);
}

.ctrl-row input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--panel-bg);
    transition: background 0.1s, transform 0.1s;
}

.ctrl-row input[type="range"]::-moz-range-thumb:hover {
    background: var(--input-thumb-hover);
    transform: scale(1.1);
}

.ctrl-row input[type="range"]::-moz-range-track {
    background: var(--input-track);
    border-radius: 2px;
    height: 3px;
}

.ctrl-row .val {
    font-size: 11px;
    color: var(--text-color);
    min-width: 32px;
    width: 32px;
    text-align: right;
    flex-shrink: 0;
}

/* Color Row */
.ctrl-row.color-row input[type="color"] {
    flex: 1;
    height: 20px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    padding: 0;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
}

.ctrl-row.color-row input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.ctrl-row.color-row input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 1px;
}

/* Color Grid */
.color-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    margin-top: 4px;
}

.swatch {
    aspect-ratio: 1;
    min-width: 24px;
    min-height: 24px;
    border-radius: 2px;
    cursor: pointer;
    border: 1px solid var(--border-subtle);
    transition: transform 0.1s, border-color 0.1s;
}

.swatch:hover {
    transform: scale(1.1);
    border-color: var(--border-active);
    z-index: 1;
}

.swatch.active {
    border-color: var(--text-hover);
    box-shadow: 0 0 0 1px var(--accent-color);
}

/* Button Grid */
.btn-grid {
    display: grid;
    gap: 2px;
}

.btn-grid.cols-5 {
    grid-template-columns: repeat(5, 1fr);
}

.grid-btn {
    aspect-ratio: 1;
    background: var(--overlay-light);
    border: 1px solid transparent;
    color: var(--text-muted);
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    transition: all 0.1s;
    padding: 0;
}

.grid-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

.grid-btn.active {
    background: var(--accent-color);
    color: white;
}

/* Pattern Brush Mode Button - Highlighted */
.grid-btn.pattern-brush-btn {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    border-color: #9b59b6;
}

.grid-btn.pattern-brush-btn:hover {
    background: linear-gradient(135deg, #a569bd 0%, #9b59b6 100%);
}

.grid-btn.pattern-brush-btn.active {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    box-shadow: 0 0 8px rgba(155, 89, 182, 0.5);
}

/* Pattern Brush Settings Section - matches other settings sections */
.pattern-brush-settings {
    margin-top: 8px;
}

.pattern-brush-settings .ctrl-row {
    margin-bottom: 6px;
}

.pattern-brush-settings .toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-muted);
    cursor: pointer;
}

/* Live Preview Ring Container */
.tile-preview-container {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 8px;
    margin-bottom: 10px;
    text-align: center;
    position: relative;
}

.tile-preview-container svg {
    display: block;
    margin: 0 auto;
}

.tile-preview-container .preview-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

#tile-preview-content path {
    stroke: var(--text-color);
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Seamless Edge Indicator */
.seamless-indicator {
    margin-top: 8px;
    padding: 6px 10px;
    background: rgba(46, 204, 113, 0.1);
    border-radius: 4px;
    border-left: 3px solid #2ecc71;
}

.seamless-indicator .seamless-status {
    font-size: 10px;
    color: #2ecc71;
    display: flex;
    align-items: center;
    gap: 6px;
}

.seamless-indicator .seamless-status i {
    font-size: 12px;
}

.seamless-indicator.has-warning {
    background: rgba(241, 196, 15, 0.1);
    border-left-color: #f1c40f;
}

.seamless-indicator.has-warning .seamless-status {
    color: #f1c40f;
}

/* Segment Preset Buttons - same style as tile presets */
.pattern-brush-settings .seg-btn {
    flex: 1;
    padding: 5px 8px;
    font-size: 10px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.pattern-brush-settings .seg-btn:hover {
    background: rgba(46, 204, 113, 0.2);
    border-color: rgba(46, 204, 113, 0.4);
    color: var(--text-color);
}

.pattern-brush-settings .seg-btn.active {
    background: rgba(46, 204, 113, 0.25);
    border-color: #2ecc71;
    color: #2ecc71;
}

/* =============================================
   SPLIT-VIEW PATTERN BRUSH PREVIEW
   Large side panel showing tile wrapped around a circle
   Like Adobe Illustrator's pattern brush preview
   ============================================= */

/* When split preview is active, canvas area becomes split layout */
.studio-canvas.split-preview-active {
    display: flex;
    flex-direction: row;
}

.studio-canvas.split-preview-active .canvas-wrapper {
    position: relative;
    flex: 1;
    min-width: 300px;
}

/* The split preview panel - takes right side */
.tile-preview-split {
    flex: 0 0 45%;
    max-width: 500px;
    min-width: 350px;
    background: var(--bg-darker, #0d0d1a);
    border-left: 2px solid var(--accent-color, #00d4ff);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.tile-preview-split.hidden {
    display: none !important;
}

.tile-preview-split-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    flex-wrap: wrap;
    gap: 8px;
}

.tile-preview-split-header .preview-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-color, #00d4ff);
}

.tile-preview-split-header .preview-title i {
    margin-right: 6px;
}

/* Preview Tabs (Linear / Ring) */
.preview-tabs {
    display: flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    padding: 3px;
}

.preview-tab {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    background: transparent;
    border: none;
    color: var(--text-muted, rgba(255, 255, 255, 0.5));
    font-size: 11px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.preview-tab:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color, white);
}

.preview-tab.active {
    background: var(--accent-color, #00d4ff);
    color: var(--bg-dark, #0a0a0f);
}

.preview-tab i {
    font-size: 10px;
}

.tile-preview-split-header .preview-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.preview-size-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-muted);
}

.preview-slider {
    width: 80px;
    height: 4px;
    accent-color: var(--accent-color, #00d4ff);
}

.btn-preview-close {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.15s;
}

.btn-preview-close:hover {
    background: rgba(255, 100, 100, 0.2);
    color: #ff6b6b;
}

.tile-preview-split-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: #0a0a15;
    min-height: 400px;
}

.tile-preview-split-body svg {
    width: 100%;
    height: 100%;
    max-width: 460px;
    max-height: 460px;
    border-radius: 12px;
}

.tile-preview-split-footer {
    padding: 10px 16px;
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.05));
}

.tile-preview-split-footer .preview-info {
    opacity: 0.7;
}

/* Mobile: Stack vertically instead of side-by-side */
@media (max-width: 900px) {
    .studio-canvas.split-preview-active {
        flex-direction: column;
    }

    .studio-canvas.split-preview-active .canvas-wrapper {
        flex: 1;
        min-height: 300px;
    }

    .tile-preview-split {
        flex: 0 0 auto;
        max-width: none;
        min-width: auto;
        max-height: 350px;
        border-left: none;
        border-top: 2px solid var(--accent-color, #00d4ff);
    }

    .tile-preview-split-body {
        min-height: 250px;
    }
}

/* Tile Presets - clean compact buttons */
.tile-preset {
    flex: 1;
    padding: 5px 8px;
    font-size: 10px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.tile-preset:hover {
    background: rgba(155, 89, 182, 0.2);
    border-color: rgba(155, 89, 182, 0.4);
    color: var(--text-color);
}

.tile-preset.active {
    background: rgba(155, 89, 182, 0.3);
    border-color: rgba(155, 89, 182, 0.6);
    color: #9b59b6;
}

/* Tile Symmetry Buttons - for pattern brush mode */
.tile-sym-btn {
    flex: 1;
    padding: 6px 8px;
    font-size: 10px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.tile-sym-btn i {
    font-size: 10px;
}

.tile-sym-btn:hover {
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.4);
    color: var(--text-color);
}

.tile-sym-btn.active {
    background: rgba(231, 76, 60, 0.25);
    border-color: rgba(231, 76, 60, 0.6);
    color: #e74c3c;
}

.tile-sym-btn[data-symmetry="mirror-v"].active {
    background: rgba(52, 152, 219, 0.25);
    border-color: rgba(52, 152, 219, 0.6);
    color: #3498db;
}

.tile-sym-btn[data-symmetry="mirror-quad"].active {
    background: rgba(155, 89, 182, 0.25);
    border-color: rgba(155, 89, 182, 0.6);
    color: #9b59b6;
}

.tile-sym-btn[data-symmetry="none"].active {
    background: rgba(149, 165, 166, 0.25);
    border-color: rgba(149, 165, 166, 0.6);
    color: #95a5a6;
}

/* Tessellation Settings Section (hex/tri-kaleidoscope modes) */
.tessellation-settings {
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.3);
    border-radius: 6px;
    padding: 10px;
    margin-top: 8px;
}

.tessellation-settings .control-label {
    color: #2ecc71;
}

.tessellation-settings .control-label i {
    margin-right: 6px;
}

/* Spiral Settings Section (spiral mode) */
.spiral-settings {
    background: rgba(155, 89, 182, 0.1);
    border: 1px solid rgba(155, 89, 182, 0.3);
    border-radius: 6px;
    padding: 10px;
    margin-top: 8px;
}

.spiral-settings .control-label {
    color: #9b59b6;
}

.spiral-settings .control-label i {
    margin-right: 6px;
}

.spiral-settings .settings-select {
    background: rgba(155, 89, 182, 0.15);
    border-color: rgba(155, 89, 182, 0.4);
}

.spiral-settings .help-tip {
    background: rgba(155, 89, 182, 0.1);
    border-left: 2px solid rgba(155, 89, 182, 0.5);
    padding: 6px 8px;
    margin-top: 6px;
    font-size: 10px;
    color: var(--text-muted);
    border-radius: 0 4px 4px 0;
}

#spiral-direction-btns .seg-btn.active {
    background: linear-gradient(135deg, #8e44ad 0%, #9b59b6 100%);
    color: white;
    border-color: #9b59b6;
}

/* Tessellation Size Preset Buttons */
.tess-btn {
    padding: 6px 10px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.15s ease;
    min-width: 36px;
}

.tess-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: rgba(46, 204, 113, 0.5);
}

.tess-btn.active {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: white;
    border-color: #27ae60;
    box-shadow: 0 2px 4px rgba(46, 204, 113, 0.3);
}

/* Preset Row */
.preset-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 2px;
    margin-bottom: 6px;
}

.preset-btn {
    padding: 4px 0;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 2px;
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    transition: all 0.1s;
}

.preset-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

.preset-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* =========================================
   Compact Section Layout
   ========================================= */
.compact-section {
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--overlay-light);
}

.compact-section:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 5px;
}

.section-header span:first-child {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.section-value {
    font-size: 10px;
    color: var(--accent-color);
    font-weight: 600;
    background: rgba(14, 99, 156, 0.2);
    padding: 1px 6px;
    border-radius: 3px;
}

/* 3-Column Mode Grid with Labels */
.btn-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.btn-grid.cols-3 .grid-btn {
    aspect-ratio: unset;
    flex-direction: column;
    padding: 6px 4px;
    gap: 2px;
}

.btn-grid.cols-3 .grid-btn i {
    font-size: 12px;
}

.btn-grid.cols-3 .grid-btn span {
    font-size: 8px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Inline Presets Row */
.inline-presets {
    display: flex;
    align-items: center;
    gap: 3px;
}

.mini-preset {
    width: 24px;
    height: 20px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 2px;
    cursor: pointer;
    font-size: 9px;
    font-weight: 600;
    transition: all 0.1s;
    flex-shrink: 0;
}

.mini-preset:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

.mini-preset.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.inline-slider {
    flex: 1;
    min-width: 40px;
    height: 3px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    margin-left: 4px;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.inline-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--panel-bg);
}

.inline-slider::-webkit-slider-thumb:hover {
    background: var(--input-thumb-hover);
}

/* Mini Toggle Button */
.mini-toggle {
    width: 22px;
    height: 18px;
    background: var(--overlay-medium);
    border: none;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.1s;
}

.mini-toggle:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

.mini-toggle.active {
    background: var(--accent-color);
    color: white;
}

/* Guide Toggle Buttons Row */
.guide-toggles {
    display: flex;
    gap: 4px;
}

.guide-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 4px;
    background: var(--overlay-light);
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.1s;
}

.guide-btn i {
    font-size: 12px;
}

.guide-btn span {
    font-size: 8px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.guide-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
}

.guide-btn.active {
    background: rgba(14, 99, 156, 0.3);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Expandable Section */
.expandable-section {
    margin-top: 6px;
}

.expand-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 5px 8px;
    background: var(--overlay-subtle);
    border: 1px solid var(--overlay-light);
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.1s;
}

.expand-trigger:hover {
    background: var(--overlay-light);
    color: var(--text-color);
}

.expand-trigger i {
    font-size: 8px;
    transition: transform 0.15s;
}

.expandable-section.expanded .expand-trigger i {
    transform: rotate(180deg);
}

.expand-content {
    display: none;
    padding: 8px 0 0 0;
}

.expandable-section.expanded .expand-content {
    display: block;
}

/* Mini Control Row */
.mini-ctrl {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 5px;
}

.mini-ctrl:last-child {
    margin-bottom: 0;
}

.mini-ctrl label {
    font-size: 10px;
    color: var(--text-muted);
    width: 55px;
    flex-shrink: 0;
}

.mini-ctrl input[type="range"] {
    flex: 1;
    min-width: 50px;
    height: 3px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.mini-ctrl input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--panel-bg);
}

.mini-ctrl .val {
    font-size: 10px;
    color: var(--text-color);
    min-width: 24px;
    text-align: right;
    flex-shrink: 0;
}

/* Toggle Row */
.toggle-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
}

.toggle-row span {
    font-size: 10px;
    color: var(--text-color);
}

/* Mini Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 24px;
    height: 12px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch .track {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--input-track);
    border-radius: 12px;
    transition: background 0.15s;
}

.switch .track::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    left: 2px;
    bottom: 2px;
    background: var(--input-thumb);
    border-radius: 50%;
    transition: transform 0.15s;
}

.switch input:checked+.track {
    background: var(--accent-color);
}

.switch input:checked+.track::before {
    transform: translateX(12px);
}

/* Layer Section */
.layer-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 4px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.layer-hint {
    font-size: 9px;
    color: var(--text-muted);
    font-style: italic;
}

/* ========== SIDEBAR FOOTER - RESET BUTTON ========== */
.sidebar-footer {
    padding: 12px;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    background: var(--panel-header-bg);
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.reset-defaults-btn {
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.reset-defaults-btn:hover {
    background: var(--danger-color, #e74c3c);
    border-color: var(--danger-color, #e74c3c);
    color: white;
}

.reset-defaults-btn i {
    font-size: 10px;
}

.layer-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 2px;
    font-size: 10px;
}

.layer-btn:hover {
    color: var(--text-hover);
    background: var(--btn-hover-bg);
}

.layer-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.layer-item {
    display: flex;
    align-items: center;
    padding: 3px 4px;
    background: var(--input-bg);
    border-radius: 2px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.15s, border-color 0.15s;
    position: relative;
}

.layer-item:hover {
    background: var(--btn-hover-bg);
}

.layer-item.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* Active layer left edge indicator */
.layer-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #fff;
    border-radius: 2px 0 0 2px;
}

.layer-item.active .layer-name {
    color: var(--accent-text);
}

/* Make all icons visible on active (blue) layer */
.layer-item.active .drag-handle,
.layer-item.active .layer-visibility,
.layer-item.active .layer-lock,
.layer-item.active .layer-isolate,
.layer-item.active .layer-delete-btn,
.layer-item.active .layer-preview,
.layer-item.active .layer-isolate i {
    color: var(--accent-text) !important;
}

/* Delete button on active layer - keep red hover */
.layer-item.active .layer-delete-btn:hover {
    color: #ffcccc !important;
}

.layer-item.active .layer-preview {
    background: rgba(255, 255, 255, 0.2);
}

/* Drag & Drop styling - Adobe-style with clear drop indicators */
.layer-item.dragging {
    opacity: 0.4;
    border: 1px dashed var(--accent-color);
    background: rgba(108, 92, 231, 0.1);
}

/* Touch drag clone - floating element while dragging on mobile/tablet */
.layer-drag-clone {
    background: var(--panel-bg);
    border: 2px solid var(--accent-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    font-size: 11px;
    color: var(--text-primary);
}

.layer-drag-clone .drag-handle {
    color: var(--accent-color);
}

.layer-drag-clone .layer-name {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 11px;
}

/* Legacy class - keep for compatibility */
.layer-item.drag-over {
    border-top: 2px solid #3b82f6;
}

/* Drop indicator - above the item */
.layer-item.drag-over-above {
    position: relative;
}

.layer-item.drag-over-above::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: #3b82f6;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
    z-index: 10;
}

/* Drop indicator - below the item */
.layer-item.drag-over-below {
    position: relative;
}

.layer-item.drag-over-below::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: #3b82f6;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
    z-index: 10;
}

/* Drop indicator - sub-layer drop target on layer */
.layer-item.drag-over-sublayer-target {
    background: rgba(59, 130, 246, 0.2) !important;
    outline: 2px dashed #3b82f6;
    outline-offset: -2px;
}

.layer-item .drag-handle {
    cursor: grab;
    color: var(--text-muted);
    padding: 0 4px;
    font-size: 10px;
}

.layer-item .drag-handle:hover {
    color: var(--text-hover);
}

.layer-item .drag-handle:active {
    cursor: grabbing;
}

/* Layer multi-select */
.layer-item.selected {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
}

/* Selected indicator uses box-shadow to avoid conflict with active ::before */
.layer-item.selected:not(.active) {
    box-shadow: inset 3px 0 0 #3b82f6;
}

/* Layer name input - editable on double-click */
.layer-item .layer-name {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 11px;
    padding: 2px 4px;
    min-width: 60px;
    flex: 1;
    cursor: default;
}

.layer-item .layer-name:not([readonly]) {
    background: var(--input-bg);
    border-color: var(--accent-color);
    cursor: text;
}

.layer-item .layer-name:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--input-bg);
}

/* Layer options button */
.layer-options-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 9px;
    width: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.15s;
}

.layer-item:hover .layer-options-btn,
.layer-item.active .layer-options-btn {
    opacity: 1;
}

.layer-options-btn:hover {
    color: var(--accent-color);
}

/* Sub-layer options button */
.sublayer-options-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 9px;
    width: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.15s;
    margin-right: 4px;
}

.sub-layer:hover .sublayer-options-btn,
.sub-layer.selected .sublayer-options-btn {
    opacity: 1;
}

.sublayer-options-btn:hover {
    color: var(--accent-color);
}

/* Sub-layer multi-select */
.sub-layer.selected {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
    box-shadow: inset 3px 0 0 #3b82f6;
}

/* Layer Context Menu */
.layer-context-menu {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    min-width: 180px;
    padding: 4px 0;
    font-size: 12px;
    max-height: 80vh;
    overflow-y: auto;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.1s;
}

.context-menu-item:hover:not([disabled]) {
    background: var(--hover-bg);
}

.context-menu-item[disabled],
.context-menu-item.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.context-menu-item.checked {
    color: var(--accent-color);
}

.context-menu-item.text-danger {
    color: #e74c3c;
}

.context-menu-item.text-danger:hover:not([disabled]) {
    background: rgba(231, 76, 60, 0.1);
}

.context-menu-item i {
    width: 14px;
    text-align: center;
    font-size: 11px;
}

.context-menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

.layer-visibility,
.layer-lock,
.layer-isolate,
.layer-delete-btn,
.layer-expand-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 9px;
    width: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.layer-expand-btn {
    width: 14px;
    font-size: 8px;
    transition: transform 0.15s ease;
}

.layer-expand-btn.hidden {
    visibility: hidden;
}

.layer-expand-btn:hover {
    color: var(--text-hover);
}

.layer-isolate i {
    font-size: 10px;
}

.layer-visibility:hover,
.layer-lock:hover,
.layer-isolate:hover,
.layer-expand-btn:hover {
    color: var(--text-hover);
}

.layer-delete-btn:hover {
    color: #e74c3c;
}

.layer-isolate.isolated {
    color: #ff6b35;
}

.layer-preview {
    width: 16px;
    height: 16px;
    background: var(--btn-bg);
    margin: 0 4px;
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 8px;
}

.layer-name {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 10px;
    font-family: inherit;
    outline: none;
    min-width: 0;
}

/* Sub-layer visibility */
.layer-item .layer-visibility.hidden i {
    opacity: 0.4;
}

.sub-layer-list {
    padding-left: 12px;
    max-height: 300px;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Sub-layer drag and drop */
.layer-item.sub-layer {
    padding: 2px 4px;
    font-size: 9px;
    cursor: grab;
    transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.layer-item.sub-layer:active {
    cursor: grabbing;
}

.layer-item.sub-layer.dragging {
    opacity: 0.6;
    transform: scale(1.02);
    background: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 100;
}

.layer-item.sub-layer.drag-over {
    border-top: 2px solid var(--accent-color);
    margin-top: -2px;
}

.layer-item.sub-layer.drag-over-below {
    border-bottom: 2px solid var(--accent-color);
    margin-bottom: -2px;
}

/* Drag handle for sub-layers */
.layer-item.sub-layer .sublayer-drag-handle {
    cursor: grab;
    color: var(--text-muted);
    padding: 0 4px;
    font-size: 8px;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.layer-item.sub-layer:hover .sublayer-drag-handle {
    opacity: 1;
}

.layer-item.sub-layer.is-hidden {
    opacity: 0.5;
}

.layer-item.sub-layer .sublayer-visibility {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 9px;
    width: 18px;
    display: flex;
    justify-content: center;
}

.layer-item.sub-layer .sublayer-visibility:hover {
    color: var(--text-hover);
}

.layer-item.sub-layer .sublayer-visibility.off {
    color: var(--text-muted);
    opacity: 0.5;
}

/* Sub-layer specific styles */
.sublayer-preview {
    width: 16px;
    height: 16px;
    background: none;
    color: var(--text-muted);
}

.sublayer-name {
    flex: 1;
    color: var(--text-muted);
    font-size: 10px;
}

/* Layer actions (move up/down, delete) */
.layer-actions {
    display: flex;
    gap: 2px;
}

.layer-action-btn {
    width: 16px;
    height: 16px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
}

.layer-action-btn:hover {
    color: var(--text-hover);
    background: var(--btn-hover-bg);
}

.layer-action-btn i {
    font-size: 8px;
}

.layer-action-btn.layer-delete:hover {
    color: var(--danger-color);
}

/* =========================================
   Status Bar - Fixed at Bottom
   ========================================= */
.studio-statusbar {
    height: var(--statusbar-height);
    min-height: var(--statusbar-height);
    max-height: var(--statusbar-height);
    background: #007acc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    font-size: 11px;
    color: white;
    flex-shrink: 0;
    z-index: 100;
    position: relative;
}

.statusbar-left,
.statusbar-right {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.statusbar-left {
    justify-content: flex-start;
}

.statusbar-right {
    justify-content: flex-end;
}

.statusbar-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Layer indicator in status bar */
#status-layer {
    background: rgba(255, 255, 255, 0.15);
    padding: 2px 8px;
    border-radius: 3px;
    cursor: default;
}

#status-layer i {
    opacity: 0.8;
}

#status-layer-name {
    font-weight: 500;
}

.status-divider {
    opacity: 0.5;
    margin: 0 6px;
}

.status-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-left: 8px;
    transition: color 0.2s;
}

.status-link:hover {
    color: white;
    text-decoration: underline;
}

.status-link.coffee-link .fa-coffee {
    color: #f5c518;
}

.status-link.coffee-link:hover {
    color: #ff813f;
}

.status-link.coffee-link:hover .fa-coffee {
    color: #ff813f;
}

/* Beta Badge - Subtle active development indicator */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 3px;
    cursor: help;
    transition: all 0.2s ease;
}

.beta-badge {
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.3), rgba(79, 70, 229, 0.3));
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(147, 51, 234, 0.4);
}

.beta-badge:hover {
    background: linear-gradient(135deg, rgba(147, 51, 234, 0.5), rgba(79, 70, 229, 0.5));
    color: white;
    border-color: rgba(147, 51, 234, 0.6);
}

.beta-badge i {
    font-size: 9px;
    opacity: 0.9;
}

/* =========================================
   Feedback Widget in Status Bar
   ========================================= */
.feedback-widget {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-left: 4px;
    height: 100%;
}

.feedback-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: 0 4px;
    font-size: 11px;
    border-radius: 2px;
    transition: all 0.2s;
    line-height: 1;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.feedback-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.15);
}

.feedback-btn.selected {
    color: #ffd700;
}

.feedback-btn.selected i {
    font-weight: 900;
}

.feedback-btn#feedback-up.selected {
    color: #4ade80;
}

.feedback-btn#feedback-down.selected {
    color: #f87171;
}

.feedback-btn.dimmed {
    opacity: 0.3;
}

.feedback-btn.dimmed:hover {
    opacity: 0.5;
}

/* Feedback count display */
.feedback-count {
    font-size: 10px;
    margin-left: 2px;
    color: rgba(255, 255, 255, 0.5);
    min-width: 0;
    transition: color 0.2s;
}

.feedback-btn:hover .feedback-count,
.feedback-btn.selected .feedback-count {
    color: rgba(255, 255, 255, 0.8);
}

.feedback-btn#feedback-up.selected .feedback-count {
    color: #4ade80;
}

.feedback-btn#feedback-down.selected .feedback-count {
    color: #f87171;
}

.feedback-comment-trigger {
    margin-left: 6px;
}

.feedback-comment-trigger .status-link {
    font-size: 11px;
    margin-left: 0;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

.feedback-comment-trigger .status-link:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* =========================================
   Quick Rating Comment Modal
   (Separate from main feedback-modal.css)
   ========================================= */
.quick-rating-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}

.quick-rating-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.quick-rating-modal {
    background: var(--panel-bg, #252526);
    border-radius: 12px;
    padding: 20px;
    width: 90%;
    max-width: 380px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color, #3c3c3c);
}

.quick-rating-modal h4 {
    margin: 0 0 16px 0;
    color: var(--text-color, #fff);
    font-size: 15px;
    font-weight: 500;
}

.quick-rating-textarea-wrap {
    position: relative;
}

.quick-rating-modal textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    padding-bottom: 28px;
    border: 1px solid var(--border-color, #3c3c3c);
    border-radius: 6px;
    background: var(--input-bg, #1e1e1e);
    color: var(--text-color, #fff);
    font-size: 16px;
    /* Prevents iOS zoom on focus */
    resize: vertical;
    font-family: inherit;
    box-sizing: border-box;
}

.quick-rating-modal textarea:focus {
    outline: none;
    border-color: var(--accent-color, #007acc);
}

.quick-rating-modal textarea::placeholder {
    color: var(--text-muted, #666);
}

.quick-rating-char-count {
    position: absolute;
    right: 10px;
    bottom: 8px;
    font-size: 11px;
    color: var(--text-muted, #666);
    pointer-events: none;
}

.quick-rating-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 16px;
}

.quick-rating-btn {
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.quick-rating-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color, #3c3c3c);
    color: var(--text-muted, #aaa);
}

.quick-rating-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-color, #fff);
}

.quick-rating-btn.primary {
    background: var(--accent-color, #007acc);
    color: white;
}

.quick-rating-btn.primary:hover {
    filter: brightness(1.15);
}

/* =========================================
   Loader
   ========================================= */
.app-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--app-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.3s;
}

.app-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-color);
    animation: spin 0.8s linear infinite;
    margin-bottom: 12px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.app-loader p {
    color: var(--text-muted);
    font-size: 13px;
}

/* =========================================
   MOBILE RESPONSIVE DESIGN
   Touch-friendly layout for phones & tablets
   ========================================= */

/* Default hide mobile-only elements on desktop */
.mobile-sidebar-toggle {
    display: none;
}

.mobile-sidebar-backdrop {
    display: none;
}

.mobile-zoom-hint {
    display: none;
}

/* Tablet Layout - Collapsible Sidebar */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 220px;
    }

    /* Hide icon strip by default on tablet - only show when collapsed */
    .sidebar-icon-strip {
        display: none;
    }

    /* Show icon strip only when sidebar is collapsed */
    .studio-layout.sidebar-collapsed .sidebar-icon-strip {
        display: flex;
    }

    /* Icon buttons slightly larger for touch */
    .sidebar-icon-btn {
        height: 44px;
    }

    .sidebar-icon-btn i {
        font-size: 16px;
    }

    /* Flyout panel adjustments for tablet */
    .sidebar-flyout {
        width: 280px;
        right: var(--sidebar-collapsed-width);
    }

    /* Show flyout backdrop on tablet for easier dismissal */
    .sidebar-flyout-backdrop.visible {
        display: block;
    }
}

/* Phone Landscape & Small Tablets */
@media (max-width: 768px) {
    :root {
        --header-height: 44px;
        --toolbar-width: 48px;
        --statusbar-height: 0px;
        /* Hide on mobile */
    }

    /* Hide status bar on mobile - not essential */
    .studio-statusbar {
        display: none;
    }

    /* Hide quick brush controls on mobile - use sidebar instead */
    .topbar-center {
        display: none;
    }

    /* Top bar adjustments for mobile */
    .studio-topbar {
        height: var(--header-height);
        min-height: var(--header-height);
        padding: 0 8px;
        gap: 4px;
    }

    /* Topbar left - keep brand and undo/redo */
    .topbar-left {
        display: flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }

    .topbar-brand span {
        display: none;
    }

    .topbar-brand {
        padding: 0 4px;
    }

    .topbar-brand i {
        font-size: 18px;
    }

    /* Hide separators on mobile for cleaner look */
    .topbar-left .separator,
    .topbar-right .separator {
        display: none;
    }

    /* Topbar-right: Properly aligned on mobile */
    .topbar-right {
        display: flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }

    /* Hide these buttons on mobile - user can access from sidebar or use gestures */
    .topbar-right #btn-save-pattern,
    .topbar-right #btn-gallery,
    .topbar-right #btn-clear,
    .topbar-right #btn-reset-defaults {
        display: none;
    }

    /* Hide desktop-only buttons on tablet (e.g., fullscreen in toolbar) */
    .desktop-only-btn {
        display: none !important;
    }

    /* Show mobile clear button on touch devices */
    .topbar-right #btn-clear-mobile {
        display: flex;
    }

    /* Online indicator stays visible on mobile - shows community presence */
    .topbar-right .online-indicator {
        display: flex;
        padding: 4px 8px;
        font-size: 11px;
        min-width: auto;
    }

    .topbar-right .online-indicator .online-count {
        font-size: 11px;
    }

    /* Keep hard refresh visible on mobile - important for cache clearing */
    .topbar-right #btn-hard-refresh {
        display: flex;
    }

    /* ============================================
       MOBILE HEADER BUTTONS (max-width: 768px)
       All buttons become circular icons for touch
       ============================================ */

    /* Export button - circular icon */
    .primary-btn {
        width: 38px;
        height: 38px;
        padding: 0;
        border-radius: 50%;
        box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
    }

    .primary-btn span {
        display: none;
    }

    .primary-btn i {
        font-size: 14px;
    }

    /* Gallery button - circular icon */
    .gallery-btn {
        width: 38px;
        height: 38px;
        padding: 0;
        border-radius: 50%;
    }

    .gallery-btn span {
        display: none;
    }

    .gallery-btn i {
        font-size: 14px;
    }

    /* Publish button - circular icon (override showcase-btn-large) */
    .showcase-btn,
    .showcase-btn.showcase-btn-large {
        width: 38px;
        height: 38px;
        padding: 0;
        border-radius: 50%;
        font-size: 12px;
        font-weight: 500;
    }

    .showcase-btn span {
        display: none;
    }

    .showcase-btn i,
    .showcase-btn.showcase-btn-large i {
        font-size: 14px;
    }

    /* Record button - already small, keep consistent */
    .record-btn:not(.record-btn-small) {
        width: 38px;
        height: 38px;
        padding: 0;
        border-radius: 50%;
    }

    .record-btn:not(.record-btn-small) span {
        display: none;
    }

    .record-btn:not(.record-btn-small) i {
        font-size: 14px;
    }

    /* Slightly larger touch targets */
    .icon-btn {
        width: 38px;
        height: 38px;
        font-size: 14px;
        flex-shrink: 0;
    }

    /* Main layout - still side by side but thinner toolbar */
    .studio-main {
        max-height: calc(100vh - var(--header-height));
    }

    /* Left toolbar - touch-friendly sizes */
    .studio-toolbar {
        width: var(--toolbar-width);
        min-width: var(--toolbar-width);
        padding: 4px 0;
    }

    .tool-item {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    /* Sidebar - Slide-out drawer on mobile */
    .studio-sidebar {
        position: fixed;
        top: var(--header-height);
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 85vw;
        z-index: 500;
        transform: translateX(100%);
        transition: transform 0.25s ease-out;
        box-shadow: var(--flyout-shadow);
    }

    /* CRITICAL: Override sidebar-collapsed display:none on mobile
       The sidebar must be visible (but off-screen) for the slide-out to work */
    .studio-layout.sidebar-collapsed .studio-sidebar,
    .studio-sidebar.collapsed {
        display: flex !important;
    }

    /* Hide collapse button on mobile - use FAB instead */
    .sidebar-collapse-toggle {
        display: none;
    }

    /* Hide icon strip and flyout on mobile - use drawer pattern */
    .sidebar-icon-strip,
    .sidebar-flyout,
    .sidebar-flyout-backdrop {
        display: none !important;
    }

    .studio-sidebar.mobile-open {
        transform: translateX(0);
    }

    /* Sidebar toggle button - shows on mobile */
    .mobile-sidebar-toggle {
        display: flex !important;
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
        background: var(--accent-color);
        border: none;
        border-radius: 50%;
        color: white;
        font-size: 20px;
        cursor: pointer;
        z-index: 600;
        /* Above sidebar and backdrop */
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        align-items: center;
        justify-content: center;
        transition: transform 0.2s, background 0.2s;
        /* Critical for touch responsiveness */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        -webkit-appearance: none;
        -webkit-user-select: none;
        user-select: none;
        pointer-events: auto;
    }

    .mobile-sidebar-toggle:active {
        transform: scale(0.9);
    }

    .mobile-sidebar-toggle.open {
        background: var(--danger-color);
        z-index: 600;
        /* Stay above sidebar when open too */
    }

    /* Sidebar backdrop overlay */
    .mobile-sidebar-backdrop {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--backdrop-bg);
        z-index: 450;
    }

    .mobile-sidebar-backdrop.visible {
        display: block;
    }

    /* Canvas takes full width */
    .studio-canvas {
        flex: 1;
        min-width: 0;
    }

    /* Panel adjustments for touch */
    .panel-header {
        height: 40px;
        padding: 0 12px;
        font-size: 12px;
    }

    .panel-body {
        padding: 10px 12px 14px;
    }

    /* Larger touch targets for controls */
    .ctrl-row input[type="range"]::-webkit-slider-thumb {
        width: 18px;
        height: 18px;
    }

    .grid-btn {
        min-height: 36px;
    }

    .swatch {
        min-width: 28px;
        min-height: 28px;
    }

    /* Dropdown adjustments */
    .dropdown-menu {
        min-width: 180px;
    }

    .dropdown-item {
        padding: 12px 15px;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    /* Gallery modal adjustments */
    .gallery-content {
        width: 95%;
        max-height: 85vh;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }
}

/* ============================================
   TABLET STYLES (769px - 1024px)
   Compact icon buttons with rounded corners
   ============================================ */
@media (min-width: 769px) and (max-width: 1024px) {
    .topbar-center {
        display: flex;
    }

    /* Topbar right - tighter spacing on tablet */
    .topbar-right {
        gap: 4px;
    }

    /* Export button - compact square on tablet */
    .primary-btn {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 6px;
        box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25);
    }

    .primary-btn i {
        font-size: 13px;
    }

    .primary-btn span {
        display: none;
    }

    /* Gallery button - compact square on tablet */
    .gallery-btn {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 6px;
    }

    .gallery-btn i {
        font-size: 13px;
    }

    .gallery-btn span {
        display: none;
    }

    /* Publish button - compact square on tablet (override showcase-btn-large) */
    .showcase-btn,
    .showcase-btn.showcase-btn-large {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 6px;
        box-shadow: 0 2px 6px rgba(139, 92, 246, 0.25);
    }

    .showcase-btn i,
    .showcase-btn.showcase-btn-large i {
        font-size: 13px;
    }

    .showcase-btn span {
        display: none;
    }

    /* Record button - compact square on tablet (respect record-btn-small) */
    .record-btn:not(.record-btn-small) {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 6px;
        box-shadow: 0 2px 6px rgba(239, 68, 68, 0.25);
    }

    .record-btn:not(.record-btn-small) i {
        font-size: 13px;
    }

    .record-btn:not(.record-btn-small) span {
        display: none;
    }

    /* Icon buttons - consistent sizing */
    .topbar-right .icon-btn {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    /* Properly sized quick brush controls for tablet */
    .quick-brush-controls {
        padding: 0 12px;
        height: 36px;
        gap: 10px;
    }

    .color-circle-btn {
        width: 30px;
        height: 30px;
        /* Better touch target for tablets */
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .color-circle {
        width: 22px;
        height: 22px;
    }

    .quick-size-control input[type="range"] {
        width: 70px;
        height: 32px;
        /* Better touch target */
    }

    .quick-size-control input[type="range"]::-webkit-slider-thumb {
        width: 18px;
        height: 18px;
    }

    .quick-size-value {
        font-size: 12px;
        min-width: 24px;
        /* Make it clear this is not clickable */
        pointer-events: none;
    }

    .icon-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    /* Flyout panel improvements for tablet */
    .sidebar-flyout {
        width: 300px;
        right: calc(var(--sidebar-collapsed-width) + 2px);
    }

    .sidebar-flyout.visible {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }

    /* Ensure flyout content is scrollable and touch-friendly */
    .sidebar-flyout .panel-body {
        padding: 12px 14px;
    }

    /* Flyout close button larger for touch */
    .sidebar-flyout-close {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    /* Toggle buttons in flyout - keep compact for limited space */
    .sidebar-flyout .toggle-btn {
        width: 44px;
        height: 24px;
        border-radius: 12px;
    }

    .sidebar-flyout .toggle-btn::before {
        width: 18px;
        height: 18px;
        left: 3px;
        top: 3px;
    }

    .sidebar-flyout .toggle-btn.active::before {
        transform: translateX(20px);
    }

    .sidebar-flyout .toggle-btn .toggle-label-on,
    .sidebar-flyout .toggle-btn .toggle-label-off {
        display: none;
    }

    /* Toggle cards in flyout - more compact layout */
    .sidebar-flyout .toggle-card {
        padding: 8px 10px;
        margin-bottom: 8px;
    }

    .sidebar-flyout .toggle-card-content {
        gap: 8px;
    }

    .sidebar-flyout .toggle-card-name {
        font-size: 11px;
    }

    .sidebar-flyout .toggle-card-desc {
        font-size: 8px;
    }

    .sidebar-flyout .toggle-card-icon-sm {
        font-size: 12px;
        width: 16px;
    }

    /* Main toggle card in flyout */
    .sidebar-flyout .main-toggle-card {
        padding: 10px 12px;
    }

    .sidebar-flyout .toggle-card-header {
        gap: 8px;
    }

    .sidebar-flyout .toggle-card-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .sidebar-flyout .toggle-card-title {
        font-size: 12px;
    }

    .sidebar-flyout .toggle-card-status {
        font-size: 9px;
    }
}

/* Laptop/Desktop - Comfortable sizing */
@media (min-width: 1025px) {
    .quick-brush-controls {
        height: 36px;
        padding: 0 16px;
        gap: 12px;
    }

    .color-circle-btn {
        width: 28px;
        height: 28px;
    }

    .color-circle {
        width: 20px;
        height: 20px;
    }

    .quick-size-control input[type="range"] {
        width: 80px;
    }

    .icon-btn {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }
}

/* =========================================
   Phone Portrait - Compact Layout (480px)
   Optimized for vertical phone orientation
   with touch-friendly buttons
   ========================================= */
@media (max-width: 480px) {
    :root {
        --header-height: 52px;
    }

    /* Simpler top bar on small phones - ensure no clipping */
    .studio-topbar {
        padding: 0 4px;
        overflow: visible;
        /* Ensure touch events work properly */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    /* Prevent topbar sections from clipping */
    .topbar-left,
    .topbar-right {
        overflow: visible;
        flex-shrink: 0;
    }

    /* KEEP undo/redo visible on phones - they're essential */
    .topbar-left .tool-group {
        display: flex !important;
        gap: 2px;
    }

    /* Show zoom controls container but hide +/- buttons - use pinch zoom instead */
    .zoom-controls {
        display: flex !important;
    }

    /* Hide +/- and zoom level on mobile - pinch to zoom works better */
    .zoom-controls .zoom-btn-desktop {
        display: none !important;
    }

    /* Hide desktop-only buttons on mobile/tablet (e.g., fullscreen in toolbar) */
    .desktop-only-btn {
        display: none !important;
    }

    /* Hide separators for cleaner mobile look */
    .topbar-left .separator {
        display: none;
    }

    /* Mobile-optimized icon buttons - larger touch targets */
    .topbar-left .icon-btn,
    .topbar-right .icon-btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: 18px;
        border-radius: 8px;
        /* Critical for mobile touch */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        -webkit-appearance: none;
        -webkit-user-select: none;
        user-select: none;
        /* Ensure clickable area */
        position: relative;
        z-index: 10;
    }

    /* Visual feedback for touch */
    .topbar-left .icon-btn:active:not(:disabled),
    .topbar-right .icon-btn:active:not(:disabled) {
        background: var(--accent-color);
        color: var(--accent-text);
        transform: scale(0.95);
    }

    .primary-btn span {
        display: none;
        /* Just show icon */
    }

    .primary-btn {
        padding: 0 12px;
        min-width: 44px;
        min-height: 44px;
    }

    /* Topbar-right: Even more compact on phones */
    .topbar-right {
        gap: 2px;
    }

    /* Hide these menus on phones - save space */
    .topbar-right #btn-view-menu,
    .topbar-right #btn-gallery-menu,
    .topbar-right .online-indicator {
        display: none;
    }

    /* Record button - touch-friendly on phones */
    .record-btn,
    .record-btn.record-btn-small {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        min-height: 40px !important;
        font-size: 16px;
    }

    .record-btn.record-btn-small i {
        font-size: 14px !important;
    }

    /* Showcase button smaller but touch-friendly */
    .showcase-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    /* Left toolbar - Bottom bar layout */
    .studio-main {
        flex-direction: column;
    }

    .studio-toolbar {
        order: 2;
        /* Move to bottom */
        width: 100%;
        min-width: 100%;
        height: 56px;
        min-height: 56px;
        flex-direction: row;
        border-right: none;
        border-top: 1px solid var(--border-color);
        padding: 0;
        justify-content: space-around;
        gap: 0;
    }

    .tool-item {
        width: 44px;
        height: 44px;
        font-size: 18px;
        border-radius: 6px;
    }

    .tool-separator {
        display: none;
    }

    /* Mobile-optimized dropdown menus */
    .dropdown-menu {
        max-width: calc(100vw - 16px);
        max-height: 70vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Touch-friendly dropdown items */
    .dropdown-item {
        min-height: 48px;
        padding: 12px 16px;
        font-size: 14px;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        /* Ensure touch events reach button, not child icons */
        position: relative;
    }

    /* Make child elements not capture touch events */
    .dropdown-item>* {
        pointer-events: none;
    }

    .dropdown-item:active {
        background-color: var(--accent-color);
        color: white;
    }

    .dropdown-item:active i {
        color: white;
    }

    /* Canvas area adjusts */
    .studio-canvas {
        order: 1;
        flex: 1;
        min-height: 0;
    }

    /* Sidebar adjustments */
    .studio-sidebar {
        width: 100%;
        max-width: 100%;
        top: 0;
        border-radius: 0;
    }

    /* CRITICAL: Override sidebar-collapsed display:none on small phones
       The sidebar must be visible (but off-screen) for the slide-out to work */
    .studio-layout.sidebar-collapsed .studio-sidebar,
    .studio-sidebar.collapsed {
        display: flex !important;
    }

    .mobile-sidebar-toggle {
        bottom: 70px;
        /* Above the bottom toolbar */
        right: 15px;
        width: 50px;
        height: 50px;
        font-size: 18px;
        z-index: 600;
    }

    .mobile-sidebar-backdrop {
        top: 0;
    }

    /* More compact panels on small phones */
    .pattern-category-header,
    .shape-category-header {
        font-size: 10px;
    }

    .patterns-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .shapes-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    /* Gallery modal full screen on phones */
    .gallery-content {
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Toast notifications above bottom toolbar */
    .toast-notification {
        bottom: 130px;
    }

    /* Flyout toggle buttons on phones - more compact */
    .sidebar-flyout .toggle-btn {
        width: 40px;
        height: 22px;
        border-radius: 11px;
    }

    .sidebar-flyout .toggle-btn::before {
        width: 16px;
        height: 16px;
        left: 3px;
        top: 3px;
    }

    .sidebar-flyout .toggle-btn.active::before {
        transform: translateX(18px);
    }

    /* Hide toggle labels in flyout on phones */
    .sidebar-flyout .toggle-btn .toggle-label-on,
    .sidebar-flyout .toggle-btn .toggle-label-off {
        display: none;
    }

    /* More compact toggle cards in flyout */
    .sidebar-flyout .toggle-card {
        padding: 6px 8px;
        margin-bottom: 6px;
    }

    .sidebar-flyout .toggle-card-content {
        gap: 6px;
    }

    .sidebar-flyout .toggle-card-name {
        font-size: 10px;
    }

    .sidebar-flyout .toggle-card-desc {
        display: none;
        /* Hide description to save space on phones */
    }

    .sidebar-flyout .main-toggle-card {
        padding: 8px 10px;
    }

    .sidebar-flyout .toggle-card-icon {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    .sidebar-flyout .toggle-card-title {
        font-size: 11px;
    }

    .sidebar-flyout .toggle-card-status {
        font-size: 8px;
    }

    /* Larger swatches in flyout for phone touch */
    .sidebar-flyout .swatch {
        width: 34px;
        height: 34px;
    }

    /* Mode buttons in flyout - ensure touch-friendly */
    .sidebar-flyout .mode-btn {
        min-height: 48px;
        padding: 10px 6px;
    }

    /* Segment buttons in flyout */
    .sidebar-flyout .seg-btn {
        width: 36px;
        height: 32px;
        font-size: 11px;
    }

    /* Sliders in flyout should be easier to grab */
    .sidebar-flyout input[type="range"] {
        height: 28px;
    }

    .sidebar-flyout input[type="range"]::-webkit-slider-thumb {
        width: 22px;
        height: 22px;
    }

    /* Layer buttons in flyout */
    .sidebar-flyout .layer-visibility,
    .sidebar-flyout .layer-lock,
    .sidebar-flyout .layer-isolate,
    .sidebar-flyout .layer-delete-btn {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }

    .sidebar-flyout .layer-action-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }

    /* Flyout close button larger for phones */
    .sidebar-flyout-close {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    /* Pattern/shape buttons in flyout */
    .sidebar-flyout .pattern-btn,
    .sidebar-flyout .shape-btn {
        min-width: 40px;
        min-height: 40px;
    }
}

/* Pinch-to-zoom hint for mobile */
.mobile-zoom-hint {
    display: none;
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 200;
    animation: fadeOut 3s ease-in-out forwards;
    pointer-events: none;
}

@keyframes fadeOut {

    0%,
    80% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .mobile-zoom-hint {
        display: block;
    }
}

/* Mobile-specific touch feedback */
@media (hover: none) and (pointer: coarse) {

    /* Touch device specific styles */
    .tool-item:active {
        transform: scale(0.92);
        background: var(--accent-color);
    }

    .icon-btn:active:not(:disabled) {
        transform: scale(0.92);
        background: rgba(255, 255, 255, 0.2);
    }

    .grid-btn:active {
        transform: scale(0.95);
    }

    .swatch:active {
        transform: scale(1.15);
    }

    .pattern-btn:active,
    .shape-btn:active {
        transform: scale(0.95);
    }

    /* Hide cursor-dependent UI */
    .studio-statusbar .status-item:last-child {
        display: none;
        /* Hide coordinates */
    }

    /* Larger touch targets for tools */
    .tool-item {
        min-width: 44px;
        min-height: 44px;
        padding: 12px;
    }

    .icon-btn {
        min-width: 44px;
        min-height: 44px;
    }

    /* Larger swatches for easier color picking */
    .swatch {
        width: 32px;
        height: 32px;
    }

    /* Color swatches in color pickers should be even larger */
    .color-swatches .swatch,
    .stroke-color-swatches .swatch,
    .canvas-bg-row .swatch {
        width: 36px;
        height: 36px;
    }

    /* Larger pattern/shape buttons */
    .pattern-btn,
    .shape-btn {
        min-width: 44px;
        min-height: 44px;
    }

    /* Easier slider interaction */
    input[type="range"] {
        height: 28px;
    }

    input[type="range"]::-webkit-slider-thumb {
        width: 24px;
        height: 24px;
    }

    input[type="range"]::-moz-range-thumb {
        width: 24px;
        height: 24px;
    }

    /* Increase touch targets */
    .layer-item {
        padding: 10px 8px;
        min-height: 44px;
    }

    .layer-visibility,
    .layer-lock {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    /* Larger checkboxes/toggles */
    .toggle-row input[type="checkbox"] {
        width: 44px;
        height: 24px;
    }

    /* Easier panel header taps */
    .panel-header {
        min-height: 44px;
        padding: 10px 12px;
    }

    /* Pattern search on touch */
    .pattern-search-wrapper input {
        padding: 12px 40px 12px 36px;
        font-size: 16px;
        /* Prevents iOS zoom on focus */
    }

    .pattern-search-clear {
        width: 40px;
        height: 40px;
    }

    /* Always show options buttons on touch devices (no hover state) */
    .layer-options-btn,
    .sublayer-options-btn {
        opacity: 1;
    }

    /* Larger touch targets for layer action buttons */
    .layer-action-btn {
        min-width: 36px;
        min-height: 36px;
    }

    /* Sub-layer items need adequate touch targets */
    .sub-layer {
        min-height: 40px;
        padding: 8px;
    }

    .sublayer-drag-handle {
        min-width: 32px;
        min-height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 1;
        /* Always visible on touch devices */
    }
}

/* =========================================
   Pattern Search
   ========================================= */

.pattern-search-wrapper {
    position: relative;
    margin-bottom: 12px;
}

.pattern-search-wrapper input {
    width: 100%;
    padding: 8px 32px 8px 30px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 12px;
    transition: border-color 0.2s, background 0.2s;
}

.pattern-search-wrapper input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.4);
}

.pattern-search-wrapper input::placeholder {
    color: var(--text-muted);
}

.pattern-search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 11px;
    pointer-events: none;
}

.pattern-search-clear {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, color 0.2s;
}

.pattern-search-clear:hover {
    color: var(--text-primary);
}

.pattern-search-wrapper input:not(:placeholder-shown)~.pattern-search-clear {
    opacity: 1;
    visibility: visible;
}

/* No results state */
.pattern-no-results {
    text-align: center;
    padding: 20px 10px;
    color: var(--text-muted);
    font-size: 12px;
}

.pattern-no-results i {
    display: block;
    font-size: 24px;
    margin-bottom: 8px;
    opacity: 0.5;
}

/* Search match highlighting */
.pattern-match-count {
    font-size: 10px;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

/* =========================================
   Pattern Buttons - Dynamic Pattern UI
   ========================================= */

/* Container for all patterns */
.patterns-container {
    max-height: 350px;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
}

.patterns-container::-webkit-scrollbar {
    width: 6px;
}

.patterns-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.patterns-container::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 3px;
}

/* Loading state */
.loading-patterns {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 11px;
    gap: 8px;
}

/* Pattern category section */
.pattern-category {
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pattern-category:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.pattern-category-header {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.pattern-category-header i {
    color: var(--accent-color);
    font-size: 10px;
}

/* Pattern grid layout */
.patterns-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
}

/* Individual pattern button */
.pattern-btn {
    aspect-ratio: 1;
    background: var(--overlay-light);
    border: 1px solid transparent;
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    padding: 0;
    position: relative;
    overflow: hidden;
}

.pattern-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    transform: scale(1.05);
    z-index: 1;
}

.pattern-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(14, 99, 156, 0.3);
}

/* Solid fill button - special styling - PROMINENT with visual icon */
.pattern-btn.solid-fill-btn {
    grid-column: span 2;
    aspect-ratio: auto;
    min-height: 52px;
    background: var(--overlay-light);
    border: 2px solid var(--border-color);
    margin-bottom: 8px;
    transition: all 0.2s ease;
}

.pattern-btn.solid-fill-btn:hover {
    background: var(--overlay-medium);
    border-color: var(--border-subtle);
    transform: scale(1.01);
}

.pattern-btn.solid-fill-btn.active {
    background: rgba(108, 92, 231, 0.15);
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(108, 92, 231, 0.3);
}

/* Solid visual preview - gradient circle icon */
.pattern-preview.solid-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    background: transparent;
}

.solid-visual-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color) 0%, #a29bfe 100%);
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.4);
}

.pattern-btn.solid-fill-btn.active .solid-visual-icon {
    box-shadow: 0 0 12px rgba(108, 92, 231, 0.5);
}

.solid-visual-label {
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pattern-btn.solid-fill-btn.active .solid-visual-label {
    color: white;
}

/* ========== Brush Style Section ========== */
.brush-style-section {
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.brush-style-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.brush-style-label i {
    font-size: 10px;
}

.brush-style-toggle {
    display: flex;
    gap: 8px;
}

.style-option {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.style-option:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

.style-option.active {
    background: rgba(108, 92, 231, 0.15);
    border-color: var(--accent-color);
    color: white;
}

.style-option-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Solid icon - filled circle */
.style-option-icon.solid-icon {
    background: linear-gradient(135deg, var(--accent-color) 0%, #a29bfe 100%);
    border-radius: 50%;
}

/* Pattern icon - grid pattern */
.style-option-icon.pattern-icon {
    background:
        linear-gradient(45deg, var(--accent-color) 25%, transparent 25%),
        linear-gradient(-45deg, var(--accent-color) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--accent-color) 75%),
        linear-gradient(-45deg, transparent 75%, var(--accent-color) 75%);
    background-size: 10px 10px;
    background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
    opacity: 0.7;
}

.style-option.active .style-option-icon.solid-icon {
    box-shadow: 0 0 12px rgba(108, 92, 231, 0.5);
}

.style-option.active .style-option-icon.pattern-icon {
    opacity: 1;
    box-shadow: 0 0 12px rgba(108, 92, 231, 0.5);
}

/* Pattern Mode Info - shows selected pattern */
.pattern-mode-info {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.1) 0%, rgba(155, 89, 182, 0.1) 100%);
    border: 1px solid rgba(108, 92, 231, 0.25);
    border-radius: 8px;
    margin-bottom: 12px;
}

.pattern-mode-info.visible {
    display: flex;
}

.pattern-mode-details {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pattern-mode-details i {
    font-size: 16px;
    color: var(--accent-color);
}

.pattern-mode-name {
    font-size: 11px;
    color: var(--accent-color);
    font-weight: 600;
}

.pattern-select-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.pattern-select-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.pattern-btn .pattern-preview {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.pattern-btn .pattern-preview i {
    font-size: 14px;
}

/* Pattern count badge */
.pattern-count-badge {
    background: var(--accent-color);
    color: white;
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 600;
}

/* Library section styles */
.library-section {
    margin-bottom: 12px;
}

.library-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Category count in header */
.category-count {
    font-weight: normal;
    color: var(--text-muted);
    opacity: 0.7;
    font-size: 8px;
    margin-left: 4px;
}

/* =========================================
   Shape Buttons - Dynamic Shape UI
   ========================================= */

/* Container for all shapes */
.shapes-container {
    max-height: 300px;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
}

.shapes-container::-webkit-scrollbar {
    width: 6px;
}

.shapes-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.shapes-container::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 3px;
}

/* Loading state for shapes */
.loading-shapes {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 11px;
    gap: 8px;
}

/* Shape category section */
.shape-category {
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.shape-category:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.shape-category-header {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.shape-category-header i {
    color: var(--accent-color);
    font-size: 10px;
}

/* Shape grid layout */
.shapes-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
}

/* Individual shape button */
.shape-btn {
    aspect-ratio: 1;
    background: var(--overlay-light);
    border: 1px solid transparent;
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    padding: 0;
    font-size: 14px;
}

.shape-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    transform: scale(1.05);
    z-index: 1;
}

.shape-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(14, 99, 156, 0.3);
}

/* Shape button SVG preview */
.shape-btn-svg {
    width: 24px;
    height: 24px;
    pointer-events: none;
}

.shape-btn-svg * {
    pointer-events: none;
}

.shape-btn.active .shape-btn-svg {
    stroke: white;
}

/* Shape count badge */
.shape-count-badge {
    background: var(--accent-color);
    color: white;
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 600;
}

/* ========================================
   Path Tools Panel
   ======================================== */
.path-tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    margin-bottom: 8px;
}

.path-tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    background: var(--overlay-light);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 54px;
}

.path-tool-btn i {
    font-size: 16px;
}

.path-tool-btn span {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    text-align: center;
    line-height: 1.2;
}

.path-tool-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: var(--border-active);
    transform: translateY(-1px);
}

.path-tool-btn:active {
    transform: translateY(0);
    background: var(--overlay-strong);
}

.path-tool-btn.active {
    background: rgba(14, 99, 156, 0.3);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.path-tool-btn.success {
    background: rgba(0, 184, 148, 0.2);
    border-color: #00b894;
    color: #00b894;
}

.path-tool-btn.warning {
    background: rgba(253, 203, 110, 0.2);
    border-color: #fdcb6e;
    color: #fdcb6e;
}

.path-tools-status {
    padding: 8px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.path-tools-status.info {
    background: rgba(14, 99, 156, 0.2);
    color: var(--accent-color);
}

.path-tools-status.success {
    background: rgba(0, 184, 148, 0.2);
    color: #00b894;
}

.path-tools-status.warning {
    background: rgba(253, 203, 110, 0.2);
    color: #fdcb6e;
}

/* Antenna selection zones */
.antenna-zone {
    transition: all 0.15s ease;
}

.antenna-zone.selected {
    animation: pulse-antenna 1s infinite;
}

@keyframes pulse-antenna {

    0%,
    100% {
        opacity: 0.7;
    }

    50% {
        opacity: 1;
    }
}

/* Antenna preview line */
.antenna-preview {
    animation: dash-move 0.5s linear infinite;
    stroke-dasharray: 6, 4;
}

/* =========================================
   Snap Indicator Styles
   Visual feedback for symmetry axis snapping
   ========================================= */

.snap-indicator {
    pointer-events: none;
    z-index: 10000;
}

.snap-indicator-outer {
    animation: snap-pulse 0.8s ease-in-out infinite;
}

.snap-indicator-inner {
    animation: snap-glow 0.8s ease-in-out infinite alternate;
}

.snap-indicator-pulse {
    animation: snap-ripple 1.2s ease-out infinite;
    transform-origin: center;
}

@keyframes snap-pulse {

    0%,
    100% {
        r: 12;
        opacity: 0.8;
    }

    50% {
        r: 14;
        opacity: 1;
    }
}

@keyframes snap-glow {
    0% {
        opacity: 0.7;
    }

    100% {
        opacity: 1;
    }
}

@keyframes snap-ripple {
    0% {
        r: 8;
        opacity: 0.6;
    }

    100% {
        r: 20;
        opacity: 0;
    }
}

/* Center Snap Indicator - shows when snapping to canvas center */
.center-snap-indicator {
    pointer-events: none;
    z-index: 10000;
    animation: center-snap-appear 0.3s ease-out;
}

.center-snap-indicator line {
    animation: center-snap-pulse 0.5s ease-in-out infinite alternate;
}

.center-snap-indicator circle {
    animation: center-snap-glow 0.5s ease-in-out infinite alternate;
}

@keyframes center-snap-appear {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes center-snap-pulse {
    0% {
        stroke-opacity: 0.6;
    }

    100% {
        stroke-opacity: 1;
    }
}

@keyframes center-snap-glow {
    0% {
        fill: #00ff88;
        r: 4;
    }

    100% {
        fill: #88ffbb;
        r: 5;
    }
}

/* =========================================
   Pattern Gallery Modal
   Save/Load patterns from localStorage
   ========================================= */

.gallery-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.gallery-content {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    background: var(--panel-bg);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: gallery-appear 0.2s ease-out;
}

@keyframes gallery-appear {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
}

.gallery-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-hover);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.gallery-header h2 i {
    color: var(--accent-color);
}

.gallery-close {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.15s;
}

.gallery-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.gallery-body {
    flex: 1;
    padding: 16px 20px;
    overflow-y: auto;
}

.gallery-body::-webkit-scrollbar {
    width: 8px;
}

.gallery-body::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.gallery-body::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

.gallery-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.gallery-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}

.gallery-btn.primary {
    background: var(--accent-color);
    color: white;
}

.gallery-btn.primary:hover {
    background: var(--accent-hover);
}

.gallery-btn.danger {
    background: rgba(241, 76, 76, 0.2);
    color: var(--danger-color);
}

.gallery-btn.danger:hover {
    background: var(--danger-color);
    color: white;
}

.gallery-count {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-muted);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}

.gallery-empty {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    text-align: center;
}

.gallery-empty i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.gallery-empty p {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.gallery-empty span {
    font-size: 12px;
    opacity: 0.7;
}

/* Gallery Pattern Item */
.gallery-item {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.15s;
}

.gallery-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.gallery-item-thumb {
    width: 100%;
    aspect-ratio: 1;
    background: var(--canvas-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.gallery-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d3436, #636e72);
}

.gallery-placeholder i {
    font-size: 32px;
    color: #3498db;
    opacity: 0.6;
}

.gallery-item-info {
    padding: 10px;
    border-top: 1px solid var(--border-color);
}

.gallery-item-name {
    font-size: 12px;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.gallery-item-date {
    font-size: 10px;
    color: var(--text-muted);
}

.gallery-item-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.15s;
}

.gallery-item:hover .gallery-item-actions {
    opacity: 1;
}

.gallery-item-btn {
    width: 28px;
    height: 28px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 4px;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.15s;
}

.gallery-item-btn:hover {
    background: var(--accent-color);
    color: white;
}

.gallery-item-btn.delete:hover {
    background: var(--danger-color);
}

/* Save Notification Toast */
.save-notification {
    position: fixed;
    top: 60px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    z-index: 10001;
    animation: notification-slide 0.3s ease-out;
}

@keyframes notification-slide {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.save-notification.fade-out {
    animation: notification-fade 0.3s ease-out forwards;
}

@keyframes notification-fade {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(30px);
    }
}

/* =========================================
   Pattern Brush Library Styles
   ========================================= */

/* Button Row for Pattern Brush Actions */
.btn-row {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}

.btn-row .btn-sm {
    flex: 1;
    padding: 6px 8px;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.btn-row .btn-sm i {
    font-size: 10px;
}

.btn-secondary {
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-hover);
}

.btn-accent {
    background: #2ea043;
    color: white;
    border: none;
}

.btn-accent:hover {
    background: #3fb950;
}

.btn-danger {
    background: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    padding: 6px 10px !important;
    flex: 0 !important;
}

.btn-danger:hover {
    background: var(--danger-color);
    color: white;
}

.section-header .mini-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
    font-size: 11px;
    border-radius: 3px;
}

.section-header .mini-btn:hover {
    background: var(--accent-color);
    color: white;
}

/* Pattern Library Grid */
.pattern-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    max-height: 200px;
    overflow-y: auto;
    padding: 4px;
    background: var(--app-bg);
    border-radius: 4px;
    margin-top: 4px;
}

.pattern-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    padding: 20px 10px;
    line-height: 1.5;
}

.pattern-item {
    position: relative;
    aspect-ratio: 2 / 1;
    background: #3a3a3a;
    border: 1px solid #555;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 50px;
}

.pattern-item:hover {
    border-color: var(--accent-color);
    transform: scale(1.02);
}

.pattern-item.selected {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color);
}

.pattern-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #2d2d2d;
}

.pattern-item .no-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 9px;
    color: var(--text-muted);
    background: var(--panel-bg);
}

.pattern-item .pattern-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 9px;
    padding: 2px 4px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.pattern-item .pattern-actions {
    position: absolute;
    top: 2px;
    right: 2px;
    display: none;
    gap: 2px;
}

.pattern-item:hover .pattern-actions {
    display: flex;
}

.pattern-item .pattern-actions button {
    background: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
}

.pattern-item .pattern-actions button:hover {
    background: var(--accent-color);
}

.pattern-item .pattern-actions button.delete:hover {
    background: var(--danger-color);
}

/* =========================================
   Toast Notifications
   ========================================= */
.toast-notification {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(30, 30, 30, 0.95);
    color: var(--text-color);
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 13px;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Toast Types */
.toast-notification.toast-success {
    background: rgba(39, 174, 96, 0.95);
    border-color: #27ae60;
    color: white;
}

.toast-notification.toast-info {
    background: rgba(52, 152, 219, 0.95);
    border-color: #3498db;
    color: white;
}

.toast-notification.toast-warning {
    background: rgba(241, 196, 15, 0.95);
    border-color: #f1c40f;
    color: #333;
}

.toast-notification.toast-error {
    background: rgba(231, 76, 60, 0.95);
    border-color: #e74c3c;
    color: white;
}

/* =========================================
   Confirm Modal (for Clear Canvas, etc.)
   ========================================= */
.confirm-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.2s ease;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}

.confirm-modal-overlay.show {
    opacity: 1;
}

.confirm-modal {
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0;
    max-width: 320px;
    width: calc(100% - 40px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.2s ease;
}

.confirm-modal-overlay.show .confirm-modal {
    transform: scale(1);
}

.confirm-modal-header {
    padding: 16px 20px;
    font-weight: 600;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
}

.confirm-modal-header i {
    color: #f39c12;
    font-size: 18px;
}

.confirm-modal-body {
    padding: 20px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.confirm-modal-buttons {
    padding: 12px 20px 20px;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.confirm-modal-btn {
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-color);
    transition: all 0.15s ease;
    min-width: 90px;
}

.confirm-modal-btn:hover {
    background: var(--hover-bg);
}

.confirm-modal-btn.danger {
    background: #e74c3c;
    border-color: #c0392b;
    color: white;
}

.confirm-modal-btn.danger:hover {
    background: #c0392b;
}

/* =========================================
   Loading Overlay
   ========================================= */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px 48px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-message {
    color: var(--text-color);
    font-size: 14px;
    margin-bottom: 8px;
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 16px;
}

.loading-progress-bar {
    height: 100%;
    background: var(--accent-color);
    transition: width 0.3s ease;
    border-radius: 2px;
}

/* Pattern Grid Improvements */
.pattern-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    min-height: 80px;
    max-height: 200px;
    overflow-y: auto;
    padding: 6px;
    background: var(--canvas-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

/* Button Row Styles */
.btn-row {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
}

.btn-row .btn-secondary,
.btn-row .btn-accent {
    flex: 1;
    padding: 6px 8px;
    font-size: 11px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: background 0.2s;
}

.btn-secondary {
    background: var(--input-bg);
    color: var(--text-color);
}

.btn-secondary:hover {
    background: var(--accent-hover);
}

.btn-accent {
    background: var(--accent-color);
    color: var(--accent-text);
}

.btn-accent:hover {
    background: var(--accent-hover);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #d43c3c;
}

/* Pattern Library Section */
.library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.library-header h4 {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.library-actions {
    display: flex;
    gap: 4px;
}

.library-actions button {
    padding: 4px 8px;
    font-size: 10px;
    background: var(--input-bg);
    border: none;
    border-radius: 3px;
    color: var(--text-color);
    cursor: pointer;
}

.library-actions button:hover {
    background: var(--accent-color);
}

/* Tile Export Button */
.btn-tile-export,
.btn-tile-delete {
    background: rgba(0, 0, 0, 0.6) !important;
    padding: 3px !important;
}

.btn-tile-delete:hover {
    background: var(--danger-color) !important;
}

/* =========================================
   REDESIGNED SIDEBAR - Cleaner UI
   Toggle buttons, better organization,
   mobile-friendly controls
   ========================================= */

/* ========== Main Toggle Card (Symmetry Master) ========== */
.main-toggle-card {
    background: linear-gradient(135deg, rgba(14, 99, 156, 0.2) 0%, rgba(14, 99, 156, 0.1) 100%);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.toggle-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toggle-card-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    flex-shrink: 0;
}

.toggle-card-info {
    flex: 1;
    min-width: 0;
}

.toggle-card-title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-hover);
}

.toggle-card-status {
    display: block;
    font-size: 10px;
    color: var(--accent-color);
    margin-top: 2px;
}

/* ========== Toggle Card (smaller) ========== */
.toggle-card {
    background: var(--overlay-subtle);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    margin-bottom: 10px;
    transition: border-color 0.15s, background 0.15s;
}

.toggle-card:hover {
    border-color: var(--border-subtle);
    background: var(--overlay-light);
}

.toggle-card-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toggle-card-icon-sm {
    font-size: 14px;
    color: var(--accent-color);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.toggle-card-text {
    flex: 1;
    min-width: 0;
}

.toggle-card-name {
    display: block;
    font-size: 12px;
    color: var(--text-color);
    font-weight: 500;
}

.toggle-card-desc {
    display: block;
    font-size: 9px;
    color: var(--text-muted);
    margin-top: 1px;
}

/* ========== Toggle Button (ON/OFF) ========== */
.toggle-btn {
    position: relative;
    width: 48px;
    height: 26px;
    background: var(--input-track);
    border: none;
    border-radius: 13px;
    cursor: pointer;
    transition: background 0.2s ease;
    flex-shrink: 0;
    overflow: hidden;
}

.toggle-btn::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 3px;
    width: 20px;
    height: 20px;
    background: var(--input-thumb-hover);
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.toggle-btn.active {
    background: #27ae60;
}

.toggle-btn.active::before {
    transform: translateX(22px);
}

.toggle-btn .toggle-label-on,
.toggle-btn .toggle-label-off {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: opacity 0.15s;
}

.toggle-btn .toggle-label-on {
    left: 6px;
    color: white;
    opacity: 0;
}

.toggle-btn .toggle-label-off {
    right: 6px;
    color: #999;
}

.toggle-btn.active .toggle-label-on {
    opacity: 1;
}

.toggle-btn.active .toggle-label-off {
    opacity: 0;
}

/* Toggle Card Compact Variant */
.toggle-card.compact {
    padding: 8px 10px;
    margin-bottom: 6px;
}

.toggle-card.compact .toggle-card-icon-sm {
    font-size: 12px;
    width: 18px;
}

.toggle-card.compact .toggle-card-name {
    font-size: 11px;
}

.toggle-card.compact .toggle-card-desc {
    font-size: 8px;
}

.toggle-card.compact .toggle-btn {
    width: 42px;
    height: 22px;
    border-radius: 11px;
}

.toggle-card.compact .toggle-btn::before {
    left: 2px;
    top: 2px;
    width: 18px;
    height: 18px;
}

.toggle-card.compact .toggle-btn.active::before {
    transform: translateX(20px);
}

.toggle-card.compact .toggle-btn .toggle-label-on,
.toggle-card.compact .toggle-btn .toggle-label-off {
    font-size: 7px;
}

.toggle-card.compact .toggle-btn .toggle-label-on {
    left: 5px;
}

.toggle-card.compact .toggle-btn .toggle-label-off {
    right: 5px;
}

/* ========== Control Group ========== */
.control-group {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.control-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* ========== Property Group (Selection/Transform panel) ========== */
.prop-group {
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.prop-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.prop-label {
    display: block;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.control-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.control-label>span:first-child {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.control-hint {
    font-size: 9px;
    color: var(--text-muted);
    opacity: 0.7;
}

.control-value {
    font-size: 11px;
    color: var(--accent-color);
    font-weight: 600;
    background: rgba(14, 99, 156, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
}

.control-badge {
    font-size: 10px;
    color: white;
    background: var(--accent-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

/* ========== Mode Grid (Symmetry Modes) ========== */
.mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 6px;
    background: var(--overlay-light);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 50px;
}

.mode-btn i {
    font-size: 16px;
}

.mode-btn span {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.mode-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    transform: translateY(-1px);
}

.mode-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px rgba(14, 99, 156, 0.3);
}

/* Pattern brush mode button - special styling */
.mode-btn.pattern-brush-btn {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.3) 0%, rgba(142, 68, 173, 0.3) 100%);
    border-color: rgba(155, 89, 182, 0.5);
}

.mode-btn.pattern-brush-btn:hover {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.5) 0%, rgba(142, 68, 173, 0.5) 100%);
}

.mode-btn.pattern-brush-btn.active {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    border-color: #9b59b6;
}

/* Advanced modes dropdown */
.advanced-modes {
    margin-top: 8px;
}

.advanced-modes summary {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: background 0.15s;
    list-style: none;
}

.advanced-modes summary::-webkit-details-marker {
    display: none;
}

.advanced-modes summary:hover {
    background: var(--overlay-light);
    color: var(--text-color);
}

.advanced-modes summary i {
    transition: transform 0.2s;
}

.advanced-modes[open] summary i {
    transform: rotate(90deg);
}

.mode-grid-secondary {
    margin-top: 8px;
    grid-template-columns: repeat(4, 1fr);
}

.mode-grid-secondary .mode-btn {
    min-height: 44px;
    padding: 8px 4px;
}

.mode-grid-secondary .mode-btn i {
    font-size: 14px;
}

.mode-grid-secondary .mode-btn span {
    font-size: 8px;
}

/* ========== Segment Control ========== */
.segment-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quick-segments {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.seg-btn {
    width: 32px;
    height: 28px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

/* Grid preset buttons - wider to fit text */
#grid-presets .seg-btn {
    width: auto;
    min-width: 38px;
    padding: 0 8px;
}

.seg-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.seg-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.segment-slider {
    width: 100%;
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.segment-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
}

/* ========== Guide Options ========== */
.guide-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

.guide-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--overlay-subtle);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
    font-size: 11px;
}

.guide-option i {
    width: 18px;
    text-align: center;
    font-size: 12px;
}

.guide-option:hover {
    background: var(--overlay-medium);
    color: var(--text-color);
}

.guide-option.active {
    background: rgba(14, 99, 156, 0.2);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Guide Settings */
.guide-settings {
    margin-top: 8px;
}

.guide-settings summary {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 8px;
    background: var(--overlay-subtle);
    border-radius: 4px;
    transition: background 0.15s;
    list-style: none;
}

.guide-settings summary::-webkit-details-marker {
    display: none;
}

.guide-settings summary:hover {
    background: rgba(255, 255, 255, 0.05);
}

.guide-settings>div {
    padding: 10px 0 0 0;
}

/* ========== Slider Row ========== */
.slider-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.slider-row:last-child {
    margin-bottom: 0;
}

.slider-row label {
    font-size: 11px;
    color: var(--text-muted);
    width: 55px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.slider-row label i {
    font-size: 10px;
    width: 14px;
    text-align: center;
    color: var(--accent-color);
}

.slider-row input[type="range"] {
    flex: 1;
    min-width: 60px;
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--panel-bg);
    transition: all 0.1s;
}

.slider-row input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--input-thumb-hover);
    transform: scale(1.1);
}

.slider-row .val {
    font-size: 11px;
    color: var(--text-color);
    min-width: 36px;
    text-align: right;
    flex-shrink: 0;
}

/* ========== Grid/Tile Settings ========== */
.grid-tile-settings .control-group {
    margin-bottom: 8px;
}

.grid-dimensions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.grid-dim-input {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.grid-dim-input label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.grid-dim-input input[type="number"] {
    width: 100%;
    padding: 6px 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 13px;
    text-align: center;
    -moz-appearance: textfield;
}

.grid-dim-input input[type="number"]::-webkit-outer-spin-button,
.grid-dim-input input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.grid-dim-input input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-color);
}

.grid-dim-x {
    color: var(--text-muted);
    font-size: 14px;
    padding-top: 16px;
}

/* Settings Details (collapsible) */
.settings-details {
    margin: 8px 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.15);
}

.settings-details summary {
    padding: 8px 12px;
    font-size: 11px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}

.settings-details summary:hover {
    color: var(--text-color);
}

.settings-details summary i {
    width: 14px;
    text-align: center;
}

.settings-details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.settings-details .details-content {
    padding: 10px 12px;
}

/* Settings Select Dropdown */
.settings-select {
    width: 100%;
    padding: 8px 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 12px;
    cursor: pointer;
    margin: 6px 0;
}

.settings-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.settings-select option {
    background: var(--sidebar-bg);
    color: var(--text-color);
}

/* Help Tip */
.help-tip {
    background: rgba(108, 92, 231, 0.1);
    border-left: 3px solid var(--accent-color);
    padding: 6px 10px;
    margin-top: 6px;
    font-size: 10px;
    line-height: 1.4;
    color: var(--text-muted);
    border-radius: 0 4px 4px 0;
}

/* ========== Option Row (Checkboxes) ========== */
.option-row {
    margin-bottom: 6px;
}

.option-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-muted);
    cursor: pointer;
}

.option-row input[type="checkbox"] {
    accent-color: var(--accent-color);
}

/* ========== Color Section ========== */
.color-section {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.color-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.color-label span {
    font-size: 11px;
    color: var(--text-muted);
}

.color-label input[type="color"] {
    width: 60px;
    height: 24px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
    padding: 0;
}

.color-label input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.color-label input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

/* ========== Option Toggle (Checkbox with label) ========== */
.option-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.option-toggle:last-child {
    border-bottom: none;
}

.option-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
    flex-shrink: 0;
}

.option-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-color);
}

.option-info i {
    font-size: 12px;
    color: var(--accent-color);
    width: 16px;
    text-align: center;
}

.brush-options,
.shape-options,
.path-options {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== Pattern Settings ========== */
.pattern-settings {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== Action Buttons ========== */
.tile-actions {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.action-btn {
    flex: 1;
    padding: 8px 10px;
    border: none;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: all 0.15s;
}

.action-btn i {
    font-size: 10px;
}

.action-btn.primary {
    background: var(--accent-color);
    color: white;
}

.action-btn.primary:hover {
    background: var(--accent-hover);
}

.action-btn.secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
}

.action-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.action-btn.success {
    background: #27ae60;
    color: white;
}

.action-btn.success:hover {
    background: #2ecc71;
}

.action-btn.danger {
    background: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    flex: 0;
    padding: 8px 12px;
}

.action-btn.danger:hover {
    background: var(--danger-color);
    color: white;
}

.mini-action-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 6px;
    font-size: 11px;
    border-radius: 4px;
    transition: all 0.15s;
}

.mini-action-btn:hover {
    background: var(--accent-color);
    color: white;
}

/* ========== Responsive Improvements for Sidebar ========== */
@media (max-width: 768px) {

    /* Larger touch targets on mobile */
    .toggle-btn {
        width: 54px;
        height: 30px;
    }

    .toggle-btn::before {
        width: 24px;
        height: 24px;
    }

    .toggle-btn.active::before {
        transform: translateX(24px);
    }

    .mode-btn {
        min-height: 56px;
        padding: 12px 8px;
    }

    .mode-btn i {
        font-size: 18px;
    }

    .seg-btn {
        width: 38px;
        height: 34px;
        font-size: 12px;
    }

    .slider-row input[type="range"]::-webkit-slider-thumb {
        width: 20px;
        height: 20px;
    }

    .option-toggle {
        padding: 12px 0;
    }

    .option-toggle input[type="checkbox"] {
        width: 20px;
        height: 20px;
    }

    .guide-option {
        padding: 12px;
    }

    .action-btn {
        padding: 12px;
        font-size: 12px;
    }

    .toggle-card {
        padding: 12px 14px;
    }

    .main-toggle-card {
        padding: 14px;
    }

    .toggle-card-icon {
        width: 42px;
        height: 42px;
        font-size: 18px;
    }

    /* Layer name input - 16px prevents iOS zoom on focus */
    .layer-name {
        font-size: 16px;
    }
}

/* Touch device specific improvements */
@media (hover: none) and (pointer: coarse) {
    .toggle-btn:active {
        transform: scale(0.95);
    }

    .mode-btn:active {
        transform: scale(0.95);
    }

    .seg-btn:active {
        transform: scale(0.95);
    }

    .guide-option:active {
        transform: scale(0.98);
    }

    .action-btn:active {
        transform: scale(0.97);
    }
}

/* =========================================
   REDESIGNED PANELS - Brush, Shapes, Patterns, Path Tools, Layers
   Clean, intuitive, mobile-friendly
   ========================================= */

/* ========== Color Picker Card ========== */
.color-picker-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
}

.color-input-lg {
    width: 48px;
    height: 48px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
    padding: 0;
}

.color-input-lg::-webkit-color-swatch-wrapper {
    padding: 3px;
}

.color-input-lg::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-picker-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.color-label-text {
    font-size: 11px;
    color: var(--text-muted);
}

.color-hex-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-hover);
    font-family: monospace;
    text-transform: uppercase;
}

/* ========== Color Palette ========== */
.color-palette {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
}

.color-palette .swatch {
    aspect-ratio: 1;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.2);
}

.color-palette .swatch:hover {
    transform: scale(1.1);
    z-index: 1;
}

.color-palette .swatch.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--accent-color);
}

/* ========== Colors Panel (Unified Stroke + Background) ========== */
#panel-colors .panel-body {
    padding: 12px;
}

.color-mode-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px;
    border-radius: 8px;
}

.color-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 8px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 0;
}

.color-tab:hover {
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
}

.color-tab.active {
    color: var(--accent-text);
    background: var(--accent-color);
}

.color-tab i {
    font-size: 12px;
    flex-shrink: 0;
}

.color-tab .tab-label {
    display: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.color-tab.active .tab-label {
    display: inline;
}

/* When sidebar has enough space, show all labels */
.sidebar:not(.collapsed) .color-mode-tabs:not(.compact) .color-tab .tab-label {
    display: inline;
}

/* Main Color Picker */
.color-picker-main {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 14px;
}

.color-input-main {
    width: 56px;
    height: 56px;
    padding: 0;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
}

.color-input-main::-webkit-color-swatch-wrapper {
    padding: 4px;
}

.color-input-main::-webkit-color-swatch {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.color-picker-label {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.color-mode-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-color);
}

.color-hex {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono, monospace);
    text-transform: uppercase;
}

/* Color Swatches Container */
.color-swatches-container {
    position: relative;
}

.color-swatches {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    padding: 2px;
}

.color-swatches.active {
    display: flex;
}

.color-swatches .swatch {
    width: 30px;
    height: 30px;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.2);
}

.color-swatches .swatch:hover {
    transform: scale(1.15);
    z-index: 1;
}

.color-swatches .swatch.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--accent-color), inset 0 0 0 1px rgba(0, 0, 0, 0.2);
}

/* Dark background swatches need visible borders for light colors */
.bg-swatches .swatch[data-color="#ffffff"],
.bg-swatches .swatch[data-color="#f5f5f5"],
.bg-swatches .swatch[data-color="#fdf6e3"],
.bg-swatches .swatch[data-color="#e8d5b7"] {
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15);
}

/* ========== Detail Mode Card ========== */
.detail-mode-card {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.15), rgba(255, 193, 7, 0.08)) !important;
    border: 1px solid rgba(255, 152, 0, 0.3) !important;
    margin-bottom: 12px;
}

.detail-mode-card .toggle-card-icon-sm {
    color: #ff9800;
}

.detail-mode-card .toggle-btn.active {
    background: linear-gradient(135deg, #ff9800, #ffc107);
}

/* When detail mode is active, dim the auto-behavior toggles */
.detail-mode-active .toggle-card.compact:not(.detail-mode-card) {
    opacity: 0.5;
    pointer-events: none;
}

.detail-mode-active .toggle-card.compact:not(.detail-mode-card)::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(45deg,
            transparent,
            transparent 4px,
            rgba(255, 152, 0, 0.1) 4px,
            rgba(255, 152, 0, 0.1) 8px);
    border-radius: 8px;
    pointer-events: none;
}

/* ========== Guide Colors Section ========== */
.guide-colors-container {
    display: none;
    flex-direction: column;
    gap: 8px;
    padding: 4px 0;
}

.guide-colors-container.active {
    display: flex;
}

.guide-color-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px 8px 0 0;
    margin-bottom: 0;
}

.guide-color-row+.guide-swatches {
    margin-top: -1px;
}

.guide-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    margin-bottom: 8px;
}

.guide-swatches .swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.guide-swatches .swatch:hover {
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.guide-swatches .swatch.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--accent-color);
}

.guide-color-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-color);
}

.guide-color-row label i {
    width: 16px;
    text-align: center;
    color: var(--text-muted);
}

.guide-color-input {
    width: 36px;
    height: 28px;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    background: none;
    -webkit-appearance: none;
}

.guide-color-input::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.guide-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.guide-color-input::-moz-color-swatch {
    border: none;
    border-radius: 4px;
}

.guide-color-input:hover {
    border-color: var(--accent-color);
}

/* Guide Color Presets */
.guide-color-presets {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    margin-top: 4px;
}

.guide-preset-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-right: 4px;
}

.guide-preset-btn {
    width: 24px;
    height: 24px;
    padding: 3px;
    background: rgba(0, 0, 0, 0.2);
    border: 2px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.guide-preset-btn span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 3px;
}

.guide-preset-btn:hover {
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.guide-preset-btn.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--accent-color);
}

/* ========== Canvas Background Picker (Legacy - can be removed) ========== */
.canvas-bg-picker {
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.canvas-bg-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--text-secondary);
}

.canvas-bg-header i {
    color: var(--accent-color);
}

.canvas-bg-options {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.canvas-bg-btn {
    width: 28px;
    height: 28px;
    padding: 3px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.canvas-bg-btn:hover {
    transform: scale(1.1);
    border-color: var(--border-color);
}

.canvas-bg-btn.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.canvas-bg-btn .bg-preview {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 4px;
}

.canvas-bg-custom {
    width: 28px;
    height: 28px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    -webkit-appearance: none;
    background: none;
    padding: 0;
}

.canvas-bg-custom::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.canvas-bg-custom::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}

/* ========== Size Control with Presets ========== */
.size-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.size-presets {
    display: flex;
    gap: 4px;
}

.size-btn {
    flex: 1;
    padding: 6px 0;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.size-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.size-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.full-slider {
    width: 100%;
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
}

.full-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid white;
}

/* ========== Dual Sliders (Compact Layout) ========== */
.dual-sliders {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* Snap Distance Control - shown when Smart Snap is ON */
.snap-distance-control {
    padding: 8px 12px;
    margin: -4px 0 4px 0;
    background: var(--overlay-subtle);
    border-radius: 6px;
}

.snap-distance-control.hidden {
    display: none;
}

.slider-compact {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.slider-compact-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
}

.slider-compact-header span:first-child {
    display: flex;
    align-items: center;
    gap: 5px;
}

.slider-compact-header span:first-child i {
    font-size: 9px;
    color: var(--accent-color);
}

.slider-compact-header .val {
    color: var(--text-color);
    font-weight: 600;
}

.slider-compact input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.slider-compact input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
}

/* ========== Options Details (Expandable) ========== */
.options-details {
    margin-top: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.options-details summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--overlay-subtle);
    cursor: pointer;
    list-style: none;
    transition: background 0.15s;
}

.options-details summary::-webkit-details-marker {
    display: none;
}

.options-details summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 9px;
    margin-left: auto;
    transition: transform 0.2s;
}

.options-details[open] summary::after {
    transform: rotate(180deg);
}

.options-details summary:hover {
    background: var(--overlay-light);
    color: var(--text-color);
}

.options-details summary i {
    font-size: 12px;
    color: var(--accent-color);
    width: 16px;
    text-align: center;
}

.options-details>.options-list,
.options-details>.adjustment-sliders,
.options-details>.manual-tools-grid,
.options-details>div {
    padding: 10px 12px;
    border-top: 1px solid var(--border-color);
}

/* ========== Options List ========== */
.options-list {
    display: flex;
    flex-direction: column;
}

.options-list .option-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.options-list .option-toggle:last-child {
    border-bottom: none;
}

.options-list .option-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
    flex-shrink: 0;
}

.options-list .option-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.options-list .option-info i {
    font-size: 12px;
    color: var(--accent-color);
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

.options-list .option-info span {
    font-size: 11px;
    color: var(--text-color);
}

.option-hint {
    font-size: 9px;
    color: var(--text-muted);
    margin-left: auto;
    flex-shrink: 0;
}

/* ========== Search Input ========== */
.search-input-wrapper {
    position: relative;
    margin-bottom: 10px;
}

.search-input-wrapper input {
    width: 100%;
    padding: 10px 12px 10px 34px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 12px;
    transition: all 0.15s;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.08);
}

.search-input-wrapper input::placeholder {
    color: var(--text-muted);
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 12px;
    pointer-events: none;
}

.search-input-wrapper .search-clear {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    opacity: 0;
    transition: all 0.15s;
}

.search-input-wrapper input:not(:placeholder-shown)+.search-icon+.search-clear,
.search-input-wrapper .search-clear:focus {
    opacity: 1;
}

.search-input-wrapper .search-clear:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

/* ========== Shapes Grid ========== */
.shapes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 10px;
    max-height: 200px;
    overflow-y: auto;
    padding: 2px;
}

.shapes-grid .shape-btn,
.shapes-grid button[data-shape] {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    padding: 6px;
}

.shapes-grid button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.shapes-grid button.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.shapes-grid button i,
.shapes-grid button svg {
    font-size: 16px;
    width: 20px;
    height: 20px;
}

.shapes-grid button span {
    font-size: 8px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* ========== Patterns Grid ========== */
.patterns-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 10px;
    max-height: 180px;
    overflow-y: auto;
    padding: 2px;
}

.patterns-grid .pattern-btn,
.patterns-grid button[data-pattern] {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
    padding: 4px;
    min-height: 44px;
}

.patterns-grid button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
    transform: scale(1.02);
}

.patterns-grid button.active {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.4) 0%, rgba(142, 68, 173, 0.4) 100%);
    color: white;
    border-color: #9b59b6;
}

.patterns-grid button .pattern-icon {
    font-size: 16px;
}

.patterns-grid button span {
    font-size: 7px;
    text-transform: uppercase;
    letter-spacing: 0.2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.loading-indicator {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    color: var(--text-muted);
    font-size: 11px;
}

.loading-indicator i {
    font-size: 20px;
    color: var(--accent-color);
}

/* ========== Panel Intro Text ========== */
.panel-intro {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    margin-bottom: 10px;
    background: rgba(14, 99, 156, 0.1);
    border-radius: 6px;
    font-size: 11px;
    color: var(--accent-color);
}

.panel-intro i {
    font-size: 12px;
}

/* ========== Quick Actions Grid (Path Tools) ========== */
.quick-actions-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    transition: all 0.15s;
}

.quick-action-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-color);
}

.quick-action-btn:active {
    transform: scale(0.98);
}

.quick-action-btn i {
    font-size: 14px;
    color: var(--accent-color);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.quick-action-btn span {
    font-size: 12px;
    font-weight: 500;
}

.quick-action-btn small {
    margin-left: auto;
    font-size: 9px;
    color: var(--text-muted);
}

/* ========== Manual Tools Grid ========== */
.manual-tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.tool-grid-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.tool-grid-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.tool-grid-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.tool-grid-btn.danger:hover {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    border-color: #e74c3c;
}

.tool-grid-btn i {
    font-size: 14px;
}

.tool-grid-btn span {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* ========== Utility Row ========== */
.utility-row {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.utility-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.utility-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.utility-btn i {
    font-size: 11px;
}

/* ========== Path Status ========== */
.path-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    margin-top: 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 6px;
    font-size: 10px;
    color: var(--text-muted);
}

.path-status i {
    font-size: 11px;
}

/* ========== Layer Actions ========== */
.layer-actions {
    margin-bottom: 10px;
}

.layer-actions .action-btn {
    width: 100%;
}

.layer-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    margin-top: 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 6px;
    font-size: 10px;
    color: var(--text-muted);
}

.layer-hint i {
    color: #ffd700;
    font-size: 11px;
}

/* ========== Adjustment Sliders ========== */
.adjustment-sliders {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.adjustment-sliders .slider-row {
    margin-bottom: 0;
}

/* ========== Mobile Responsive for New Panels ========== */
@media (max-width: 768px) {
    .color-input-lg {
        width: 56px;
        height: 56px;
    }

    .color-palette {
        gap: 8px;
    }

    .color-palette .swatch {
        min-height: 36px;
    }

    .size-btn {
        padding: 10px 0;
        font-size: 12px;
    }

    .quick-action-btn {
        padding: 14px;
    }

    .quick-action-btn i {
        font-size: 16px;
    }

    .tool-grid-btn {
        padding: 14px 8px;
    }

    .tool-grid-btn i {
        font-size: 16px;
    }

    .shapes-grid,
    .patterns-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .options-list .option-toggle {
        padding: 14px 0;
    }

    .options-list .option-toggle input[type="checkbox"] {
        width: 20px;
        height: 20px;
    }

    .search-input-wrapper input {
        padding: 14px 12px 14px 38px;
        font-size: 16px;
        /* Prevents iOS zoom on focus */
    }
}

/* Touch improvements for new elements */
@media (hover: none) and (pointer: coarse) {

    .size-btn:active,
    .quick-action-btn:active,
    .tool-grid-btn:active,
    .utility-btn:active {
        transform: scale(0.95);
    }

    .color-palette .swatch:active {
        transform: scale(0.9);
    }

    .shapes-grid button:active,
    .patterns-grid button:active {
        transform: scale(0.92);
    }
}

/* =========================================
   PATH TOOLS - Compact & Clean Layout
   ========================================= */

/* Path Actions Grid - 4 equal buttons */
.path-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}

.path-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.path-action-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.path-action-btn:active {
    transform: scale(0.95);
}

.path-action-btn i {
    font-size: 14px;
    color: var(--accent-color);
}

.path-action-btn span {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Toggle Options Section - Auto behaviors */
.toggle-options-section {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
}

.toggle-option {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.toggle-option:hover {
    background: rgba(255, 255, 255, 0.08);
}

.toggle-option.active {
    background: rgba(14, 99, 156, 0.2);
    border-color: var(--accent-color);
}

.toggle-option.active .toggle-option-icon {
    color: var(--accent-color);
}

.toggle-option.active .toggle-option-label {
    color: var(--text-hover);
}

.toggle-option-icon {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.15s;
}

.toggle-option-label {
    font-size: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2px;
    color: var(--text-muted);
    text-align: center;
    transition: color 0.15s;
}

/* Selection Tools Row - Compact icons */
.selection-tools-row {
    display: flex;
    gap: 4px;
}

.selection-tool-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.selection-tool-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
}

.selection-tool-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.selection-tool-btn.danger:hover {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    border-color: #e74c3c;
}

.selection-tool-btn i {
    font-size: 12px;
}

/* =========================================
   SELECTION & TRANSFORM SECTION
   ========================================= */

/* Inline Details for Selection/Transform */
.selection-transform-details {
    margin-top: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.selection-transform-details[open] {
    background: rgba(255, 255, 255, 0.03);
}

.selection-transform-details .inline-summary {
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.15s;
    -webkit-user-select: none;
    user-select: none;
}

.selection-transform-details .inline-summary:hover {
    color: var(--text-hover);
    background: rgba(255, 255, 255, 0.04);
}

.selection-transform-details .inline-summary i:first-child {
    color: var(--accent-color);
    font-size: 11px;
}

.selection-transform-details .inline-toggle {
    margin-left: auto;
    font-size: 10px;
    transition: transform 0.2s;
}

.selection-transform-details[open] .inline-toggle {
    transform: rotate(180deg);
}

.selection-transform-details>*:not(summary) {
    padding: 0 12px;
}

.selection-transform-details>*:last-child {
    padding-bottom: 12px;
}

/* Selection Mode Card */
.selection-mode-card {
    margin-top: 8px;
}

.selection-mode-card.active .toggle-card-content {
    background: rgba(155, 89, 182, 0.1);
    border-color: rgba(155, 89, 182, 0.3);
}

.selection-mode-card.active .toggle-card-icon-sm {
    color: #9b59b6;
}

/* ===== Selection Panel (sel-*) ===== */

/* Selection Mode Checkbox */
.sel-mode {
    margin-bottom: 12px;
}

.sel-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-muted);
    padding: 6px 8px;
    background: var(--overlay-light);
    border-radius: 6px;
    transition: all 0.15s ease;
}

.sel-checkbox:hover {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--text-primary);
}

.sel-checkbox input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

/* Selection Section */
.sel-section {
    margin-bottom: 12px;
}

.sel-section-label {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

/* Selection Actions Grid */
.sel-actions {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 6px;
}

.sel-align {
    grid-template-columns: repeat(6, 1fr);
}

.sel-quick {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

/* Selection Button */
.sel-btn {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-light);
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 12px;
    transition: all 0.12s ease;
}

.sel-btn:hover {
    background: rgba(var(--accent-rgb), 0.15);
    border-color: rgba(var(--accent-rgb), 0.3);
    color: var(--text-primary);
}

.sel-btn:active {
    transform: scale(0.92);
    background: var(--accent-color);
    color: white;
}

.sel-btn-danger {
    color: var(--text-muted);
}

.sel-btn-danger:hover {
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.3);
    color: #e74c3c;
}

.sel-btn-danger:active {
    background: #e74c3c;
    color: white;
}

/* Transform Amount Slider */
.sel-amount {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
}

.sel-amount-label {
    font-size: 9px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.sel-amount input[type="range"] {
    flex: 1;
    height: 3px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
}

.sel-amount input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
}

.sel-amount-val {
    min-width: 24px;
    text-align: right;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Center Button */
.sel-center-btn {
    width: 100%;
    padding: 6px 10px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 10px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.sel-center-btn:hover {
    background: rgba(var(--accent-rgb), 0.1);
    border-color: var(--accent-color);
    color: var(--text-primary);
}

.sel-center-btn i {
    font-size: 10px;
}

/* Transform Section Label */
.transform-section-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin: 12px 0 8px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.transform-section-label i {
    font-size: 10px;
    color: var(--accent-color);
}

/* Transform Row (Rotate, Flip, Scale) */
.transform-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
}

.transform-label {
    font-size: 11px;
    color: var(--text-secondary);
    min-width: 50px;
}

.transform-buttons {
    display: flex;
    align-items: center;
    gap: 4px;
}

.transform-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.transform-btn:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.transform-btn:active {
    transform: scale(0.95);
    background: var(--accent-color);
    color: white;
}

.transform-btn i {
    font-size: 11px;
}

.transform-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.transform-btn:disabled:hover {
    background: var(--overlay-light);
    color: var(--text-secondary);
    border-color: var(--border-color);
    transform: none;
}

.transform-value {
    min-width: 40px;
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Transform Slider (Rotation Amount) */
.transform-slider {
    margin: 4px 0 8px 0;
}

.transform-slider input[type="range"] {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--slider-track);
    border-radius: 2px;
    cursor: pointer;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.transform-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: transform 0.1s;
}

.transform-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Alignment Buttons Grid */
.alignment-controls-section {
    margin-top: 4px;
}

.alignment-buttons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.alignment-btn {
    width: 100%;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.alignment-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.alignment-btn:active {
    transform: scale(0.95);
    background: var(--accent-color);
    color: white;
}

.alignment-btn i {
    font-size: 11px;
}

.alignment-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Align to Canvas Center Button */
.align-canvas-btn {
    width: 100%;
    margin-top: 8px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.align-canvas-btn:hover {
    background: rgba(155, 89, 182, 0.15);
    color: var(--text-hover);
    border-color: #9b59b6;
}

.align-canvas-btn:active {
    transform: scale(0.98);
    background: #9b59b6;
    color: white;
}

.align-canvas-btn i {
    font-size: 11px;
    color: #9b59b6;
}

.align-canvas-btn:hover i,
.align-canvas-btn:active i {
    color: inherit;
}

/* Clipboard Actions Section */
.clipboard-actions-section {
    margin-top: 4px;
}

.clipboard-buttons-row {
    display: flex;
    gap: 4px;
}

.clipboard-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 10px 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.clipboard-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.clipboard-btn:active {
    transform: scale(0.95);
    background: var(--accent-color);
    color: white;
}

.clipboard-btn i {
    font-size: 14px;
}

.clipboard-btn span {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.clipboard-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.clipboard-btn:disabled:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border-color: var(--border-color);
    transform: none;
}

/* Selection Mode Indicator (Status Bar) */
.selection-mode-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: rgba(155, 89, 182, 0.2);
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    color: #9b59b6;
}

.selection-mode-indicator i {
    font-size: 10px;
}

/* =========================================
   SELECTION PANEL - Additional Styles
   ========================================= */

/* Mode Card */
.mode-card {
    background: var(--overlay-subtle);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
}

.mode-card.active {
    background: rgba(155, 89, 182, 0.1);
    border-color: rgba(155, 89, 182, 0.3);
}

.mode-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.mode-toggle:hover {
    background: rgba(155, 89, 182, 0.1);
    border-color: rgba(155, 89, 182, 0.3);
    color: var(--text-primary);
}

.mode-toggle.active {
    background: rgba(155, 89, 182, 0.2);
    border-color: #9b59b6;
    color: #9b59b6;
}

.mode-toggle i {
    font-size: 14px;
}

.mode-hint {
    display: block;
    margin-top: 8px;
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
}

/* Slider Inline (for transform controls) */
.slider-inline {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 4px;
    min-width: 60px;
}

.slider-inline input[type="range"] {
    flex: 1;
    height: 4px;
    min-width: 40px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--slider-track);
    border-radius: 2px;
    cursor: pointer;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.slider-inline input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: transform 0.1s;
}

.slider-inline input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider-inline .val {
    min-width: 32px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Generic Button Icon */
.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
}

.btn-icon:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.btn-icon:active {
    transform: scale(0.95);
    background: var(--accent-color);
    color: white;
}

.btn-icon i {
    font-size: 12px;
}

/* Smaller btn-icon in transform rows */
.transform-row .btn-icon {
    width: 30px;
    height: 30px;
}

.transform-row .btn-icon i {
    font-size: 11px;
}

/* Alignment Grid */
.alignment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.alignment-grid .btn-icon {
    width: 100%;
    height: 32px;
}

/* Standalone button after alignment grid */
.alignment-grid+.btn-action {
    margin-top: 8px;
    width: 100%;
}

/* Button Row */
.button-row {
    display: flex;
    gap: 6px;
}

/* Generic Action Button (standalone) */
.btn-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-action:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.btn-action:active {
    transform: scale(0.98);
    background: var(--accent-color);
    color: white;
}

/* Button Row (overrides for flex layout) */
.button-row .btn-action {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 10px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.button-row .btn-action:hover {
    background: var(--overlay-strong);
    color: var(--text-hover);
    border-color: var(--accent-color);
}

.button-row .btn-action:active {
    transform: scale(0.95);
    background: var(--accent-color);
    color: white;
}

.button-row .btn-action.btn-danger:hover {
    background: rgba(231, 76, 60, 0.2);
    border-color: #e74c3c;
    color: #e74c3c;
}

.button-row .btn-action.btn-danger:active {
    background: #e74c3c;
    color: white;
}

/* =========================================
   BRUSH OPTIONS - Toggle Buttons Row
   ========================================= */

.brush-options-row {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.brush-options-row .toggle-btn {
    flex: 1;
    padding: 8px 10px;
    font-size: 11px;
}

/* =========================================
   PATTERNS PANEL - Improved Layout
   ========================================= */

/* Pattern Color Quick Picker */
.pattern-color-section {
    margin-bottom: 12px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.pattern-color-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.pattern-color-row label {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.pattern-color-row label i {
    color: var(--accent-color);
}

.pattern-color-input {
    width: 36px;
    height: 28px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    background: transparent;
}

.pattern-color-input::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.pattern-color-input::-webkit-color-swatch {
    border-radius: 4px;
    border: none;
}

.pattern-color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.pattern-color-swatches .swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pattern-color-swatches .swatch:hover {
    transform: scale(1.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.pattern-color-swatches .swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.3);
}

/* Pattern Container - proper scrolling */
.pattern-container {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 10px;
    padding: 2px;
}

/* Pattern Adjustments - Compact inline sliders */
.pattern-adjustments {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 6px;
}

.adjustment-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.adjustment-row .adj-label {
    width: 20px;
    text-align: center;
    color: var(--accent-color);
    font-size: 11px;
}

.adjustment-row input[type="range"] {
    flex: 1;
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
    touch-action: none;
    /* Prevent scroll interference on touch devices */
}

.adjustment-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--input-thumb);
    border-radius: 50%;
    cursor: pointer;
}

.adjustment-row .adj-val {
    width: 32px;
    font-size: 10px;
    color: var(--text-muted);
    text-align: right;
}

/* Compact Action Button - for pattern/fill actions */
.action-btn.compact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 8px 12px;
    margin-bottom: 10px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.action-btn.compact:hover {
    background: rgba(220, 53, 69, 0.15);
    border-color: rgba(220, 53, 69, 0.5);
    color: #dc3545;
}

.action-btn.compact:active {
    transform: scale(0.98);
}

.action-btn.compact i {
    font-size: 12px;
}

/* =========================================
   INLINE COLOR PICKERS - For Guides Panel
   ========================================= */

.inline-color-picker {
    width: 24px;
    height: 24px;
    min-width: 24px;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    margin-right: 8px;
    flex-shrink: 0;
}

.inline-color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.inline-color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

/* =========================================
   CANVAS BACKGROUND SECTION - Guides Panel
   ========================================= */

.canvas-bg-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.canvas-bg-section .control-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.canvas-bg-section .control-label span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

.canvas-bg-section .control-label i {
    font-size: 12px;
}

.canvas-bg-input {
    width: 28px;
    height: 24px;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.canvas-bg-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.canvas-bg-input::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.canvas-bg-rows {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.canvas-bg-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.canvas-bg-row .row-label {
    font-size: 10px;
    color: var(--text-muted);
    width: 32px;
    flex-shrink: 0;
}

.canvas-bg-row .swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.15s;
    flex-shrink: 0;
}

.canvas-bg-row .swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.canvas-bg-row .swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.3);
}

/* Light swatches need a border to be visible on dark backgrounds */
.canvas-bg-row .swatch.light-swatch {
    border-color: var(--border-color);
}

.canvas-bg-row .swatch.light-swatch:hover,
.canvas-bg-row .swatch.light-swatch.active {
    border-color: var(--accent-color);
}

/* Legacy support for old picker layout (if any references remain) */
.canvas-bg-picker {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.canvas-bg-hex {
    font-size: 11px;
    color: var(--text-muted);
    font-family: monospace;
}

.canvas-bg-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.canvas-bg-swatches .swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.15s;
}

.canvas-bg-swatches .swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.canvas-bg-swatches .swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.3);
}

/* =========================================
   STROKE COLOR SECTION - Brush Panel
   ========================================= */

.stroke-color-section {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.stroke-color-picker {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.stroke-color-input {
    width: 100%;
    height: 32px;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
}

.stroke-color-input::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.stroke-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.stroke-color-hex {
    font-size: 11px;
    color: var(--text-muted);
    font-family: monospace;
}

/* Color Theme Selector */
.color-theme-selector {
    margin-bottom: 8px;
}

.theme-dropdown {
    width: 100%;
    padding: 6px 10px;
    background: var(--control-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.theme-dropdown:hover {
    border-color: var(--accent-color);
}

.theme-dropdown:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.2);
}

.theme-dropdown option {
    background: var(--panel-bg);
    color: var(--text-primary);
    padding: 8px;
}

.stroke-color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.stroke-color-swatches .swatch {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.15s;
}

.stroke-color-swatches .swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.stroke-color-swatches .swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.3);
}

/* Panel hint text */
.panel-hint {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 10px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    line-height: 1.4;
}

.panel-hint i {
    margin-right: 4px;
    color: var(--accent-color);
}

/* =========================================
   SHAPES PANEL - Toggle Options Row
   ========================================= */

.shape-options-row {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.shape-options-row .toggle-btn {
    flex: 1;
    padding: 8px 10px;
    font-size: 11px;
}

/* =========================================
   Touch Improvements for New Components
   ========================================= */

@media (hover: none) and (pointer: coarse) {
    .path-action-btn {
        padding: 14px 6px;
    }

    .path-action-btn i {
        font-size: 16px;
    }

    .toggle-option {
        padding: 12px 6px;
    }

    .selection-tool-btn {
        padding: 14px;
    }

    .selection-tool-btn i {
        font-size: 14px;
    }

    .path-action-btn:active,
    .toggle-option:active,
    .selection-tool-btn:active {
        transform: scale(0.95);
    }
}

/* =========================================
   PROFESSIONAL STYLUS SETTINGS
   ========================================= */

.stylus-settings {
    background: rgba(14, 99, 156, 0.08);
    border-radius: 8px;
    padding: 10px;
    margin-top: 8px;
    border: 1px solid rgba(14, 99, 156, 0.2);
}

.stylus-header {
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.stylus-header span {
    color: var(--accent-color) !important;
    font-size: 10px !important;
}

.stylus-settings .slider-compact {
    margin-bottom: 10px;
}

/* Pressure Curve Dropdown */
.pressure-curve-control {
    margin-bottom: 10px;
}

.pressure-curve-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pressure-curve-header i {
    font-size: 10px;
    color: var(--accent-color);
}

.pressure-curve-select {
    width: 100%;
    padding: 8px 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%23999' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 28px;
}

.pressure-curve-select:hover {
    border-color: rgba(14, 99, 156, 0.5);
    background-color: rgba(0, 0, 0, 0.4);
}

.pressure-curve-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(14, 99, 156, 0.2);
}

.pressure-curve-select option {
    background: #1e1e1e;
    color: var(--text-primary);
    padding: 8px;
}

/* Advanced Stylus Options */
.stylus-advanced-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Mini toggle cards for advanced options */
.toggle-card.mini {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    padding: 6px 8px;
    margin-bottom: 0;
}

.toggle-card.mini .toggle-card-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.toggle-card.mini .toggle-card-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
}

.toggle-card.mini .toggle-card-name {
    font-size: 10px;
    color: var(--text-primary);
    font-weight: 500;
}

.toggle-card.mini .toggle-card-desc {
    font-size: 8px;
    color: var(--text-muted);
    opacity: 0.7;
}

.toggle-card.mini .toggle-btn {
    width: 38px;
    height: 20px;
    border-radius: 10px;
    flex-shrink: 0;
}

.toggle-card.mini .toggle-btn::before {
    left: 2px;
    top: 2px;
    width: 16px;
    height: 16px;
}

.toggle-card.mini .toggle-btn.active::before {
    transform: translateX(18px);
}

.toggle-card.mini .toggle-btn .toggle-label-on,
.toggle-card.mini .toggle-btn .toggle-label-off {
    font-size: 6px;
}

.toggle-card.mini .toggle-btn .toggle-label-on {
    left: 4px;
}

.toggle-card.mini .toggle-btn .toggle-label-off {
    right: 4px;
}

/* Predicted preview stroke */
.predicted-preview {
    pointer-events: none;
    opacity: 0.3;
}

/* Touch improvements for stylus settings */
@media (hover: none) and (pointer: coarse) {
    .pressure-curve-select {
        padding: 12px 10px;
        font-size: 12px;
    }

    .toggle-card.mini {
        padding: 8px 10px;
    }

    .toggle-card.mini .toggle-card-name {
        font-size: 11px;
    }

    .toggle-card.mini .toggle-btn {
        width: 44px;
        height: 24px;
    }

    .toggle-card.mini .toggle-btn::before {
        width: 20px;
        height: 20px;
    }
}

/* =========================================
   AUTOSAVE RECOVERY DIALOG
   ========================================= */

.recovery-dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.recovery-dialog {
    background: var(--panel-bg);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    max-width: 420px;
    width: 90%;
    overflow: hidden;
    animation: slideUp 0.3s ease;
    border: 1px solid var(--border-color);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.recovery-dialog-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    background: var(--accent-color);
    color: var(--accent-text);
}

.recovery-dialog-header i {
    font-size: 24px;
}

.recovery-dialog-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.recovery-dialog-body {
    padding: 24px;
}

.recovery-dialog-body p {
    margin: 0 0 12px 0;
    color: var(--text-color);
    font-size: 14px;
}

.recovery-timestamp {
    background: var(--input-bg);
    padding: 10px 14px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 13px;
    color: var(--accent-color);
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
}

.recovery-preview {
    width: 100%;
    height: 220px;
    background: var(--canvas-bg);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    padding: 16px;
    box-sizing: border-box;
}

.recovery-preview img,
.recovery-preview svg {
    max-width: 100%;
    max-height: 100%;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
    margin: auto;
}

.recovery-dialog-footer {
    display: flex;
    gap: 12px;
    padding: 16px 24px;
    background: var(--header-bg);
    border-top: 1px solid var(--border-color);
}

.recovery-btn {
    flex: 1;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    border: none;
}

.recovery-btn.secondary {
    background: var(--btn-bg);
    color: var(--text-muted);
}

.recovery-btn.secondary:hover {
    background: var(--btn-hover-bg);
    color: var(--text-color);
}

.recovery-btn.primary {
    background: var(--accent-color);
    color: var(--accent-text);
}

.recovery-btn.primary:hover {
    background: var(--accent-hover);
}

/* =========================================
   FLOATING UNDO/REDO TOOLBAR
   Production-ready touch support
   ========================================= */

.floating-history-toolbar {
    position: absolute;
    bottom: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--panel-bg);
    padding: 6px 10px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    z-index: 100;
    border: 1px solid var(--border-color);
    /* Touch optimization */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    /* Ensure clickable */
    pointer-events: auto;
}

.floating-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-color);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.15s ease;
    /* Critical touch properties */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-appearance: none;
    -webkit-user-select: none;
    user-select: none;
    /* Ensure clickable */
    pointer-events: auto;
    position: relative;
    z-index: 1;
}

.floating-btn:hover:not(:disabled) {
    background: var(--btn-hover-bg);
    color: var(--text-hover);
}

.floating-btn:active:not(:disabled) {
    background: var(--accent-color);
    color: var(--accent-text);
    transform: scale(0.95);
}

.floating-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.floating-separator {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 4px;
}

.autosave-status {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.autosave-status.saving {
    color: #f39c12;
    animation: pulse 1s ease infinite;
}

.autosave-status.saved {
    color: #2ecc71;
}

.autosave-status.unsaved {
    color: var(--danger-color);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Hide top-bar undo/redo on desktop since we have floating toolbar */
@media (min-width: 769px) {
    .topbar-left .tool-group:first-of-type {
        /* Keep for mobile fallback but hide on desktop */
        /* Commenting out to keep as backup in header */
    }
}

/* Mobile: Show floating toolbar with enhanced touch support */
@media (max-width: 768px) {
    .floating-history-toolbar {
        bottom: 70px;
        /* Above mobile toolbar */
        left: 50%;
        transform: translateX(-50%);
        padding: 10px 14px;
        gap: 6px;
        /* Ensure it's above other elements */
        z-index: 200;
        /* Touch optimization */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    .floating-btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: 18px;
        border-radius: 8px;
        /* Critical for mobile touch */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
        -webkit-appearance: none;
        -webkit-user-select: none;
        user-select: none;
    }

    /* Visual feedback for touch */
    .floating-btn:active:not(:disabled) {
        background: var(--accent-color);
        color: var(--accent-text);
        transform: scale(0.92);
    }
}

/* Phone Portrait: Position floating toolbar optimally */
@media (max-width: 480px) {
    .floating-history-toolbar {
        /* Position in bottom-left, away from FAB and safe areas */
        bottom: auto;
        top: calc(var(--header-height) + 10px);
        left: 10px;
        transform: none;
        padding: 8px 10px;
        border-radius: 10px;
    }

    .floating-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
        font-size: 16px;
    }

    /* Hide autosave indicator on very small screens */
    .floating-history-toolbar .floating-separator,
    .floating-history-toolbar .autosave-status {
        display: none;
    }
}

/* =========================================
   PWA STANDALONE MODE STYLES
   iOS App-like experience when installed
   ========================================= */

/* Detect standalone mode via CSS */
@media all and (display-mode: standalone) {

    /* Add safe area padding for iOS notch */
    .app-container {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    /* Make header taller for iOS status bar */
    .topbar {
        padding-top: env(safe-area-inset-top, 10px);
    }

    /* Ensure full viewport usage */
    html,
    body {
        height: 100%;
        height: -webkit-fill-available;
        overflow: hidden;
    }

    .app-container {
        height: 100vh;
        height: -webkit-fill-available;
    }
}

/* Class-based standalone detection (set via JS) */
html.pwa-standalone {
    /* Same safe area adjustments */
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

html.pwa-standalone .app-container {
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
}

html.pwa-standalone .topbar {
    padding-top: calc(var(--safe-top) + 6px);
}

/* Prevent overscroll/bounce on iOS */
html.pwa-standalone body {
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
}

/* Touch optimizations for PWA */
html.pwa-standalone .tool-btn,
html.pwa-standalone .icon-btn,
html.pwa-standalone button {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

/* Prevent text selection on buttons in PWA mode */
html.pwa-standalone .topbar,
html.pwa-standalone .sidebar,
html.pwa-standalone .tool-btn {
    -webkit-user-select: none;
    user-select: none;
}

/* PWA-specific icon strip and sidebar fixes */
html.pwa-standalone .sidebar-icon-strip {
    display: none;
}

html.pwa-standalone .studio-layout.sidebar-collapsed .sidebar-icon-strip {
    display: flex;
}

/* Hide tooltips completely in PWA mode */
html.pwa-standalone .icon-tooltip {
    display: none !important;
}

/* PWA mobile-specific fixes */
@media (max-width: 768px) {

    /* In PWA mode on phones, hide icon strip and use mobile drawer */
    html.pwa-standalone .sidebar-icon-strip,
    html.pwa-standalone .sidebar-flyout,
    html.pwa-standalone .sidebar-flyout-backdrop {
        display: none !important;
    }

    /* Show mobile sidebar toggle in PWA mode */
    html.pwa-standalone .mobile-sidebar-toggle {
        display: flex !important;
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
        background: var(--accent-color);
        border: none;
        border-radius: 50%;
        color: white;
        font-size: 20px;
        cursor: pointer;
        z-index: 500;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        align-items: center;
        justify-content: center;
        -webkit-tap-highlight-color: transparent;
    }

    html.pwa-standalone .mobile-sidebar-toggle:active {
        transform: scale(0.9);
        background: var(--accent-dark);
    }

    html.pwa-standalone .mobile-sidebar-toggle.open {
        background: var(--danger-color);
    }

    /* Mobile sidebar backdrop in PWA */
    html.pwa-standalone .mobile-sidebar-backdrop.visible {
        display: block !important;
    }

    /* Sidebar slides in from right in PWA mobile */
    html.pwa-standalone .studio-sidebar {
        position: fixed;
        top: var(--header-height);
        right: 0;
        bottom: 0;
        width: 280px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 480;
    }

    html.pwa-standalone .studio-sidebar.mobile-open {
        transform: translateX(0);
    }
}

/* =========================================
   Welding Points - Visual Anchor Indicators
   Provides Illustrator-like anchor point display
   ========================================= */

/* Welding point indicator base style */
.welding-point {
    transition: r 0.15s ease-out, fill 0.15s ease-out;
    pointer-events: none;
    animation: weldingBreathe 1.5s ease-in-out infinite;
}

/* Breathing animation for visibility */
@keyframes weldingBreathe {

    0%,
    100% {
        opacity: 0.7;
        transform-origin: center;
    }

    50% {
        opacity: 1;
    }
}

/* Highlighted welding point (cursor nearby) */
.welding-point.highlighted {
    filter: drop-shadow(0 0 6px currentColor);
    animation: weldingPulse 0.5s ease-in-out infinite;
}

/* Welding point pulse animation */
@keyframes weldingPulse {

    0%,
    100% {
        opacity: 0.9;
    }

    50% {
        opacity: 1;
    }
}

/* Snap preview line - shows connection path */
.snap-preview-line {
    stroke-linecap: round;
    pointer-events: none;
    animation: dashMove 0.5s linear infinite;
}

@keyframes dashMove {
    to {
        stroke-dashoffset: -8;
    }
}

/* Welding point group - ensure proper z-index */
#welding-points-group {
    pointer-events: none;
}

/* Connection indicator - shows when endpoints are welded */
.weld-connection-indicator {
    fill: none;
    stroke: var(--accent-color, #00ff88);
    stroke-width: 2;
    stroke-dasharray: 3, 3;
    opacity: 0.6;
    pointer-events: none;
}

/* Status indicator for snap mode */
.snap-mode-indicator {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 255, 136, 0.9);
    color: #000;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    z-index: 200;
    display: none;
    pointer-events: none;
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.3);
}

.snap-mode-indicator.visible {
    display: block;
    animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateX(-50%) translateY(10px);
        opacity: 0;
    }

    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

/* Welding point types - color coding */
.welding-point[data-type="start"] {
    /* Blue for start points */
}

.welding-point[data-type="end"] {
    /* Red/Pink for end points */
}

.welding-point[data-type="welded"] {
    /* Green for welded connections */
}

/* Larger touch targets for mobile */
@media (max-width: 768px) {
    .welding-point {
        /* Slightly larger on touch devices */
        stroke-width: 1;
    }
}

/* Disable animations for users who prefer reduced motion (accessibility + performance) */
@media (prefers-reduced-motion: reduce) {
    .welding-point {
        animation: none !important;
    }

    .welding-point.highlighted {
        animation: none !important;
    }

    .snap-preview-line {
        animation: none !important;
    }
}

/* Mobile performance: reduce animations on touch devices */
@media (hover: none) and (pointer: coarse) {
    .welding-point {
        /* Simpler animation for mobile */
        animation: none;
        opacity: 0.85;
    }

    .welding-point.highlighted {
        animation: none;
        opacity: 1;
        filter: drop-shadow(0 0 4px currentColor);
    }

    .snap-preview-line {
        /* Simpler dash animation */
        animation: none;
    }
}

/* Light theme adjustments for welding points */
[data-theme="light"] .snap-preview-line {
    stroke: #0066cc;
}

[data-theme="light"] .snap-mode-indicator {
    background: rgba(0, 102, 204, 0.9);
    color: #fff;
}

/* =========================================
   Smart Snap Toggle Button Enhancement
   ========================================= */

/* Highlight snap toggle when active */
.tool-toggle.snap-active {
    background: rgba(0, 255, 136, 0.2) !important;
    border-color: #00ff88 !important;
    color: #00ff88 !important;
}

/* Snap enabled indicator in sidebar */
.snap-enabled-badge {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    margin-left: 6px;
    animation: snapPulse 1.5s ease-in-out infinite;
}

@keyframes snapPulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(0.8);
    }
}

/* =========================================
   Mobile Panel Enhancements (Phone Portrait)
   ========================================= */

/* Mobile Sidebar Header - Only visible on phones */
.sidebar-mobile-header {
    display: none;
}

/* Show mobile sidebar header on all phones (768px and below) */
@media (max-width: 768px) {
    .sidebar-mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 14px;
        background: var(--panel-header-bg);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        z-index: 10;
    }

    .sidebar-mobile-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-color);
    }

    .sidebar-mobile-close {
        width: 38px;
        height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.1);
        border: none;
        border-radius: 50%;
        color: var(--text-color);
        font-size: 16px;
        cursor: pointer;
        transition: all 0.2s;
        /* Touch-friendly */
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    .sidebar-mobile-close:active {
        background: var(--danger-color);
        transform: scale(0.92);
    }
}

/* Additional mobile header styles for smaller phones */
@media (max-width: 480px) {
    .sidebar-mobile-header {
        padding: 14px 16px;
    }

    .sidebar-mobile-title {
        font-size: 16px;
    }

    .sidebar-mobile-close {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    /* Sidebar takes full screen on phones */
    .studio-sidebar {
        top: 0;
        height: 100%;
        padding-bottom: env(safe-area-inset-bottom, 20px);
    }

    /* Panel headers - larger touch targets */
    .panel-header {
        height: 48px;
        padding: 0 14px;
        font-size: 13px;
    }

    .panel-toggle {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }

    /* Panel body - more padding for touch */
    .panel-body {
        padding: 14px 16px 18px;
    }

    /* Colors Panel - Mobile Optimized */
    #panel-colors .panel-body {
        padding: 14px;
    }

    .color-mode-tabs {
        margin-bottom: 14px;
    }

    .color-tab {
        padding: 12px 10px;
        font-size: 12px;
        min-height: 44px;
        /* iOS touch target */
    }

    /* On mobile, show text for all tabs */
    .color-tab .tab-label {
        display: inline;
    }

    .color-picker-main {
        padding: 14px;
        margin-bottom: 16px;
    }

    .color-input-main {
        width: 60px;
        height: 60px;
    }

    .color-mode-label {
        font-size: 14px;
    }

    .color-hex {
        font-size: 13px;
    }

    .color-swatches {
        gap: 10px;
        justify-content: flex-start;
    }

    .color-swatches .swatch {
        width: 38px;
        height: 38px;
        border-radius: 8px;
        flex-shrink: 0;
    }

    /* Symmetry Panel - Mobile */
    .segment-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .segment-btn {
        height: 42px;
        font-size: 14px;
    }

    .toggle-card {
        padding: 14px;
        min-height: 56px;
    }

    .toggle-btn {
        min-width: 60px;
        min-height: 36px;
    }

    /* Brush Panel - Mobile */
    .brush-preview-wrapper {
        height: 70px;
    }

    .brush-preview-indicator {
        font-size: 12px;
    }

    .ctrl-row {
        gap: 10px;
        margin-bottom: 14px;
    }

    .ctrl-row label {
        font-size: 12px;
        min-width: 60px;
    }

    .ctrl-row input[type="range"] {
        height: 28px;
    }

    .ctrl-row input[type="range"]::-webkit-slider-thumb {
        width: 22px;
        height: 22px;
    }

    .ctrl-row input[type="range"]::-moz-range-thumb {
        width: 22px;
        height: 22px;
    }

    .ctrl-row input[type="number"] {
        width: 55px;
        height: 34px;
        font-size: 16px;
        /* Prevents iOS zoom on focus */
    }

    /* Shapes Panel - Mobile */
    .shapes-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }

    .shape-btn {
        padding: 12px;
        min-height: 52px;
    }

    .shape-btn i {
        font-size: 20px;
    }

    .shape-btn span {
        font-size: 10px;
    }

    /* Patterns Panel - Mobile */
    .patterns-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .pattern-btn {
        padding: 10px;
        min-height: 48px;
    }

    /* Layers Panel - Mobile */
    .layer-item {
        min-height: 52px;
        padding: 8px 10px;
    }

    .layer-thumb {
        width: 40px;
        height: 40px;
    }

    .layer-name {
        font-size: 13px;
    }

    .layer-actions button {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    /* Guides Panel - Mobile */
    .guide-type-buttons {
        gap: 10px;
    }

    .guide-type-btn {
        flex: 1;
        min-height: 44px;
        font-size: 12px;
    }

    /* Path Tools Panel - Mobile */
    .path-tool-btn {
        min-height: 44px;
        padding: 10px 12px;
    }

    /* Mobile FAB adjustments */
    .mobile-sidebar-toggle {
        width: 56px;
        height: 56px;
        font-size: 20px;
        bottom: 80px;
        right: 16px;
    }

    /* Ensure sidebar scrolls properly */
    .sidebar-scroll {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    /* Motifs Panel - Mobile */
    .motif-category-tabs {
        gap: 6px;
        flex-wrap: wrap;
    }

    .motif-category-tab {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 14px;
    }

    .motif-mode-selector {
        gap: 8px;
    }

    .motif-mode-btn {
        min-height: 44px;
        padding: 10px 8px;
        font-size: 11px;
    }

    .motif-btn {
        width: 48px;
        height: 48px;
        min-width: 48px;
        min-height: 48px;
    }

    /* Motifs in flyout - touch-friendly */
    .sidebar-flyout .motif-category-tab {
        width: 42px;
        height: 42px;
    }

    .sidebar-flyout .motif-mode-btn {
        min-height: 46px;
        padding: 10px;
    }

    .sidebar-flyout .motif-btn {
        width: 50px;
        height: 50px;
    }

    /* Path action buttons - mobile */
    .path-actions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .path-action-btn {
        min-height: 44px;
        padding: 10px 8px;
        font-size: 11px;
    }

    .sidebar-flyout .path-action-btn {
        min-height: 46px;
    }

    /* Add close button to sidebar header on mobile */
    .sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-color);
        background: var(--panel-bg);
        position: sticky;
        top: 0;
        z-index: 10;
    }
}

/* Very small phones (iPhone SE, etc) */
@media (max-width: 375px) {
    .color-swatches .swatch {
        width: 34px;
        height: 34px;
    }

    .segment-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .shapes-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .patterns-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .color-tab {
        padding: 10px 8px;
        font-size: 12px;
    }

    .color-tab .tab-label {
        display: none !important;
        /* Just show icons on very small screens */
    }
}

/* =========================================
   LANDSCAPE PHONE ORIENTATION
   Critical: Prevents toolbar button overflow
   ========================================= */
@media (max-width: 896px) and (max-height: 450px) and (orientation: landscape) {
    :root {
        --header-height: 38px;
        --toolbar-width: 42px;
    }

    /* Compact topbar for landscape */
    .studio-topbar {
        height: var(--header-height);
        min-height: var(--header-height);
        padding: 0 4px;
        gap: 2px;
    }

    /* Hide brand text completely in landscape */
    .topbar-brand {
        padding: 0 2px;
    }

    .topbar-brand span {
        display: none;
    }

    .topbar-brand i {
        font-size: 14px;
    }

    /* Topbar left - minimize spacing */
    .topbar-left {
        gap: 2px;
        flex-shrink: 0;
    }

    /* Hide most undo/redo controls in landscape - use floating toolbar */
    .topbar-left .tool-group {
        display: none;
    }

    /* Keep only brand visible */
    .topbar-left .topbar-brand {
        display: flex;
    }

    /* Hide separators in landscape */
    .topbar-left .separator,
    .topbar-right .separator {
        display: none;
    }

    /* Zoom controls - hidden in landscape, use gestures */
    .zoom-controls {
        display: none !important;
    }

    /* Keep center area hidden in landscape phones */
    .topbar-center {
        display: none !important;
    }

    /* Topbar right - compact layout with minimal buttons */
    .topbar-right {
        gap: 2px;
        flex-shrink: 0;
    }

    /* Hide non-essential buttons in landscape */
    .topbar-right #btn-save-pattern,
    .topbar-right #btn-gallery,
    .topbar-right #btn-clear,
    .topbar-right #btn-reset-defaults,
    .topbar-right #btn-theme-toggle,
    .topbar-right .online-indicator,
    .topbar-right .help-dropdown-wrapper {
        display: none !important;
    }

    /* Keep hard refresh visible in landscape - important for cache clearing */
    .topbar-right #btn-hard-refresh {
        display: flex !important;
    }

    /* Smaller buttons in landscape */
    .icon-btn {
        width: 32px;
        height: 32px;
        font-size: 13px;
        flex-shrink: 0;
    }

    /* ============================================
       LANDSCAPE HEADER BUTTONS
       Circular icons with consistent sizing
       ============================================ */

    /* Export button - circular icon */
    .primary-btn {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 50%;
        box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25);
    }

    .primary-btn span {
        display: none;
    }

    .primary-btn i {
        font-size: 12px;
    }

    /* Gallery button - circular icon */
    .gallery-btn {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 50%;
    }

    .gallery-btn span {
        display: none;
    }

    .gallery-btn i {
        font-size: 12px;
    }

    /* Publish button - circular icon (override showcase-btn-large) */
    .showcase-btn,
    .showcase-btn.showcase-btn-large {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 50%;
        box-shadow: 0 2px 6px rgba(139, 92, 246, 0.25);
    }

    .showcase-btn span {
        display: none;
    }

    .showcase-btn i,
    .showcase-btn.showcase-btn-large i {
        font-size: 12px;
    }

    /* Record button - circular icon (respect record-btn-small) */
    .record-btn:not(.record-btn-small) {
        width: 32px;
        height: 32px;
        padding: 0;
        border-radius: 50%;
        box-shadow: 0 2px 6px rgba(239, 68, 68, 0.25);
    }

    .record-btn:not(.record-btn-small) span {
        display: none;
    }

    .record-btn:not(.record-btn-small) i {
        font-size: 12px;
    }

    /* Dropdown needs proper positioning */
    .dropdown-wrapper {
        position: relative;
    }

    .dropdown-menu {
        max-height: calc(100vh - 50px);
        overflow-y: auto;
    }

    /* Main layout in landscape - toolbar on left side */
    .studio-main {
        flex-direction: row;
        max-height: calc(100vh - var(--header-height));
    }

    /* Left toolbar - compact vertical bar */
    .studio-toolbar {
        width: var(--toolbar-width);
        min-width: var(--toolbar-width);
        height: 100%;
        flex-direction: column;
        order: 0;
        border-right: 1px solid var(--border-color);
        border-top: none;
        padding: 4px 0;
        overflow-y: auto;
        gap: 2px;
    }

    .tool-item {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .tool-separator {
        display: none;
    }

    /* Sidebar adjustments for landscape */
    .studio-sidebar {
        width: 300px;
        max-width: 50vw;
        top: var(--header-height);
    }

    /* In landscape, use desktop-style collapse pattern (icon strip + flyout)
       NOT the mobile slide-out drawer pattern */
    .studio-layout.sidebar-collapsed .studio-sidebar {
        display: none !important;
    }

    /* Show collapse button in landscape mode - users have enough width for icon strip mode */
    .sidebar-collapse-toggle {
        display: flex !important;
        height: 36px;
        font-size: 11px;
    }

    .sidebar-collapse-toggle::before {
        content: 'Collapse';
    }

    /* Show icon strip when collapsed in landscape */
    .studio-layout.sidebar-collapsed .sidebar-icon-strip {
        display: flex !important;
        width: 48px;
    }

    /* Icon strip button sizing for landscape */
    .sidebar-icon-btn {
        height: 40px;
    }

    .sidebar-icon-btn i {
        font-size: 15px;
    }

    /* Show flyout panel in landscape collapsed mode */
    .sidebar-flyout {
        display: block;
        width: 280px;
        right: 48px;
        top: var(--header-height);
        max-height: calc(100vh - var(--header-height));
    }

    .sidebar-flyout-backdrop {
        display: block;
    }

    .panel-body {
        padding: 8px 10px;
    }

    .color-swatches .swatch {
        width: 28px;
        height: 28px;
    }

    /* Hide mobile FAB in landscape - use collapse button instead */
    .mobile-sidebar-toggle {
        display: none !important;
    }

    /* Floating history toolbar - reposition for landscape */
    .floating-history-toolbar {
        bottom: 12px;
        left: 50px;
        padding: 4px 8px;
    }

    .floating-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    /* Mobile sidebar backdrop */
    .mobile-sidebar-backdrop {
        top: var(--header-height);
    }
}

/* =========================================
   MOTIFS PANEL - Decorative Element Placement
   ========================================= */

/* Motif Mode Selector - Radio button style tabs */
.motif-mode-selector {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
    padding: 3px;
    background: var(--overlay-light);
    border-radius: 8px;
}

.motif-mode-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 6px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.motif-mode-btn i {
    font-size: 14px;
}

.motif-mode-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.motif-mode-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
}

/* Light theme adjustments */
body.light-theme .motif-mode-selector {
    background: rgba(0, 0, 0, 0.05);
}

body.light-theme .motif-mode-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

body.light-theme .motif-mode-btn.active {
    background: var(--accent-color);
    color: white;
}

/* ============================================================
   MOTIF RENDER MODE SELECTOR - Fill/Outline Toggle
   ============================================================ */
.motif-render-mode-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    padding: 8px 10px;
    background: var(--overlay-light);
    border-radius: 8px;
}

.render-mode-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}

.render-mode-label i {
    margin-right: 4px;
}

.render-mode-buttons {
    display: flex;
    gap: 3px;
    flex: 1;
    background: rgba(0, 0, 0, 0.15);
    padding: 2px;
    border-radius: 6px;
}

.render-mode-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    padding: 5px 4px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 9px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.render-mode-btn i {
    font-size: 12px;
}

.render-mode-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.render-mode-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 1px 4px rgba(108, 92, 231, 0.25);
}

/* Light theme */
body.light-theme .motif-render-mode-selector {
    background: rgba(0, 0, 0, 0.04);
}

body.light-theme .render-mode-buttons {
    background: rgba(0, 0, 0, 0.08);
}

body.light-theme .render-mode-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* Motif Category Tabs */
.motif-category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.motif-category-tab {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-light);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.motif-category-tab:hover {
    background: rgba(108, 92, 231, 0.1);
    color: var(--text-primary);
}

.motif-category-tab.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

body.light-theme .motif-category-tab {
    background: rgba(0, 0, 0, 0.04);
}

body.light-theme .motif-category-tab:hover {
    background: rgba(108, 92, 231, 0.1);
}

/* Motif Grid Container */
.motif-grid-container {
    max-height: 180px;
    overflow-y: auto;
    margin-bottom: 12px;
    padding: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.motif-grid-container::-webkit-scrollbar {
    width: 6px;
}

.motif-grid-container::-webkit-scrollbar-track {
    background: transparent;
}

.motif-grid-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

/* Motif Grid */
.motif-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
    gap: 6px;
}

/* Individual Motif Button */
.motif-btn {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-light);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 20px;
    color: var(--text-primary);
    padding: 4px;
    position: relative;
}

.motif-btn:hover {
    background: rgba(108, 92, 231, 0.15);
    border-color: rgba(108, 92, 231, 0.3);
    transform: scale(1.05);
}

.motif-btn.active {
    background: rgba(108, 92, 231, 0.2);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.motif-btn svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
    stroke: currentColor;
    stroke-width: 2;
    pointer-events: none;
    /* Ensure clicks go to parent button */
}

.motif-btn svg path {
    pointer-events: none;
    /* Ensure clicks go to parent button */
}

body.light-theme .motif-btn {
    background: rgba(0, 0, 0, 0.04);
}

body.light-theme .motif-btn:hover {
    background: rgba(108, 92, 231, 0.1);
}

/* Motif Preview Section */
.motif-preview-section {
    background: var(--overlay-light);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 12px;
}

.motif-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.motif-preview-header #motif-preview-name {
    font-weight: 600;
    font-size: 12px;
    color: var(--text-primary);
}

.motif-preview-category {
    font-size: 10px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
}

body.light-theme .motif-preview-category {
    background: rgba(0, 0, 0, 0.05);
}

.motif-preview-display {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}

body.light-theme .motif-preview-display {
    background: rgba(0, 0, 0, 0.05);
}

.motif-preview-display svg {
    width: 50px;
    height: 50px;
    fill: var(--accent-color);
    stroke: var(--accent-color);
    stroke-width: 2;
}

/* Apply to Selection Section */
.motif-apply-section {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
    padding: 10px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.1), rgba(var(--accent-rgb), 0.05));
    border-radius: 8px;
    border: 1px solid rgba(var(--accent-rgb), 0.2);
}

.motif-apply-btn {
    width: 100%;
    padding: 10px 16px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.motif-apply-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

.motif-apply-btn:active:not(:disabled) {
    transform: translateY(0);
}

.motif-apply-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.motif-apply-btn i {
    font-size: 14px;
}

.motif-apply-hint {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.3;
}

body.light-theme .motif-apply-section {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.08), rgba(var(--accent-rgb), 0.03));
}

/* Motif Settings Section */
.motif-settings {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

/* Advanced Settings Collapsible */
.motif-advanced-settings {
    background: var(--overlay-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.motif-advanced-settings summary {
    padding: 10px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    list-style: none;
    transition: color 0.15s;
}

.motif-advanced-settings summary::-webkit-details-marker {
    display: none;
}

.motif-advanced-settings summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 10px;
    margin-left: auto;
    transition: transform 0.2s;
}

.motif-advanced-settings[open] summary::after {
    transform: rotate(180deg);
}

.motif-advanced-settings summary:hover {
    color: var(--text-primary);
}

.motif-advanced-content {
    padding: 0 12px 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Compact Select Dropdown */
.compact-select {
    width: 100%;
    padding: 6px 10px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 11px;
    cursor: pointer;
    outline: none;
}

.compact-select:hover {
    border-color: var(--accent-color);
}

.compact-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.15);
}

body.light-theme .compact-select {
    background: white;
}

/* Setting Row */
.setting-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.setting-row label {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.setting-row label i {
    width: 14px;
    text-align: center;
    color: var(--accent-color);
    font-size: 10px;
}

/* Motif Preview Path Styles (in SVG canvas) */
.motif-preview-path {
    pointer-events: none;
}

.motif-preview-instance {
    pointer-events: none;
    opacity: 0.6;
}

.motif-instance {
    cursor: move;
}

/* ============================================================
   PATH_SELECT MODE - Hover Highlight Styles
   Applied to shapes when user hovers in PATH_SELECT mode
   ============================================================ */

.motif-hover-highlight {
    /* Bright cyan glow for high visibility */
    filter:
        drop-shadow(0 0 4px rgba(34, 211, 238, 0.8)) drop-shadow(0 0 8px rgba(34, 211, 238, 0.5)) drop-shadow(0 0 12px rgba(34, 211, 238, 0.3));
    /* Override stroke for visual feedback - use !important sparingly */
    stroke: #22d3ee !important;
    transition: filter 0.15s ease, stroke 0.15s ease;
    cursor: pointer;
}

body.light-theme .motif-hover-highlight {
    /* Deeper blue for light theme visibility */
    filter:
        drop-shadow(0 0 4px rgba(59, 130, 246, 0.9)) drop-shadow(0 0 8px rgba(59, 130, 246, 0.6)) drop-shadow(0 0 12px rgba(59, 130, 246, 0.3));
    stroke: #3b82f6 !important;
}

/* Motif groups applied to shapes */
.motif-on-shape {
    /* Mark groups applied via PATH_SELECT for potential future features */
}

/* Preview stroke color variable for theming */
:root {
    --motif-preview-stroke: #3b82f6;
}

body.light-theme {
    --motif-preview-stroke: #2563eb;
}

/* Empty state for motif grid */
.motif-grid-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    text-align: center;
    color: var(--text-muted);
}

.motif-grid-empty i {
    font-size: 32px;
    margin-bottom: 10px;
    opacity: 0.5;
}

.motif-grid-empty p {
    font-size: 12px;
    margin: 0;
}

/* Motif count badge (for categories) */
.motif-category-tab .count-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--accent-color);
    color: white;
    font-size: 9px;
    font-weight: 600;
    padding: 1px 4px;
    border-radius: 8px;
    min-width: 14px;
    text-align: center;
}

/* Extra-wide landscape phones (e.g., iPhone Pro Max in landscape) */
@media (max-width: 932px) and (max-height: 430px) and (orientation: landscape) {

    /* Even more compact header */
    :root {
        --header-height: 36px;
    }

    .icon-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }

    /* All action buttons - consistent 28px circular */
    .primary-btn,
    .gallery-btn,
    .showcase-btn,
    .showcase-btn.showcase-btn-large,
    .record-btn:not(.record-btn-small) {
        width: 28px;
        height: 28px;
        padding: 0;
        border-radius: 50%;
    }

    .primary-btn i,
    .gallery-btn i,
    .showcase-btn i,
    .record-btn:not(.record-btn-small) i {
        font-size: 11px;
    }

    .tool-item {
        width: 34px;
        height: 34px;
        font-size: 13px;
    }
}

/* =========================================
   Update Toast Notification
   ========================================= */
.mandala-update-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99999;
    animation: slideUpToast 0.3s ease;
}

@keyframes slideUpToast {
    from {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }

    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

.update-toast-content {
    background: linear-gradient(135deg, #6c5ce7, #a29bfe);
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.update-toast-icon {
    font-size: 24px;
}

.update-toast-text {
    flex: 1;
}

.update-toast-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.update-toast-subtitle {
    font-size: 13px;
    opacity: 0.9;
}

.update-toast-refresh {
    background: white;
    color: #6c5ce7;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.update-toast-refresh:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.update-toast-close {
    background: transparent;
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 0 8px;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.update-toast-close:hover {
    opacity: 1;
}

/* Mobile responsive toast */
@media (max-width: 600px) {
    .mandala-update-toast {
        left: 10px;
        right: 10px;
        transform: none;
        bottom: 10px;
    }

    @keyframes slideUpToast {
        from {
            transform: translateY(100px);
            opacity: 0;
        }

        to {
            transform: translateY(0);
            opacity: 1;
        }
    }

    .update-toast-content {
        flex-wrap: wrap;
        padding: 12px 16px;
        gap: 12px;
    }

    .update-toast-text {
        flex-basis: calc(100% - 60px);
    }

    .update-toast-refresh {
        flex: 1;
    }
}

/* =========================================
   EXTRA SMALL SCREENS (320px - Galaxy Fold, iPhone SE)
   ========================================= */
@media (max-width: 320px) {

    /* Topbar adjustments */
    .studio-topbar {
        padding: 0 4px;
        height: 44px;
    }

    .topbar-brand span {
        display: none;
        /* Hide brand text, keep icon */
    }

    .topbar-center {
        display: none;
        /* Hide center content on very small screens */
    }

    /* Sidebar adjustments */
    .studio-sidebar {
        width: 180px;
        min-width: 180px;
    }

    /* Panel headers */
    .panel-header {
        padding: 6px 8px;
        font-size: 10px;
    }

    /* Tool items */
    .tool-item {
        min-height: 44px;
        /* WCAG touch target */
        padding: 8px;
    }

    /* Buttons and controls */
    .icon-btn {
        min-width: 36px;
        min-height: 36px;
    }

    /* Flyout panels */
    .sidebar-flyout {
        width: calc(100vw - 20px);
        max-width: 280px;
    }

    /* Reduce font sizes */
    .ctrl-row label {
        font-size: 10px;
    }

    /* Status bar */
    .studio-statusbar {
        font-size: 9px;
        padding: 2px 8px;
    }

    .status-item {
        font-size: 9px;
        padding: 2px 4px;
    }
}

/* =========================================
   MINIMUM TOUCH TARGET SIZES (44px per WCAG 2.1)
   Applied at mobile breakpoints
   ========================================= */
@media (max-width: 768px) {

    /* Color swatches - ensure 44px minimum touch area */
    .quick-swatch,
    .swatch,
    .pattern-color-swatch {
        min-width: 32px;
        min-height: 32px;
        padding: 6px;
        /* Expands touch area */
        margin: 2px;
    }

    /* Mini presets */
    .mini-preset {
        min-width: 40px;
        min-height: 36px;
        padding: 4px;
    }

    /* Guide preset buttons */
    .guide-preset-btn {
        min-width: 36px;
        min-height: 36px;
    }

    /* Preset buttons in grid */
    .preset-btn {
        min-height: 40px;
        padding: 8px 12px;
    }

    /* Grid buttons */
    .grid-btn {
        min-width: 44px;
        min-height: 44px;
    }

    /* Pattern and shape buttons */
    .pattern-btn,
    .shape-btn {
        min-height: 44px;
    }

    /* Demo tour dots - wrap in larger touch area */
    .demo-dot {
        padding: 18px;
        /* Creates 44px touch area around 8px dot */
        margin: -18px;
    }
}

/* =========================================
   DYNAMIC VIEWPORT HEIGHT (Mobile browsers)
   Fallback for browsers without dvh support
   ========================================= */
@supports (height: 100dvh) {

    .studio-layout,
    .mandala-studio-app {
        height: 100dvh;
        min-height: 100dvh;
    }

    .sidebar-flyout {
        max-height: calc(100dvh - var(--topbar-height, 50px) - var(--statusbar-height, 28px) - 40px);
    }
}

/* =========================================
   Cookie Consent Banner Override
   Position above the status bar in Mandala Studio
   ========================================= */
.cookie-banner {
    bottom: var(--statusbar-height, 22px);
}

@media (max-width: 768px) {

    /* On mobile, status bar is hidden, so cookie banner goes to bottom */
    .cookie-banner {
        bottom: 0;
    }
}

/* Internal grid system utilities - JG-MS-2024-xR7kLm9q */
.jg-ms-internal {
    --jg-sig: 'JollyGrid-MandalaStudio-2024';
}

/* =========================================
   PATTERN BRUSH PANEL STYLES
   Adobe Illustrator-style Pattern Brush Tool
   ========================================= */

/* ===== Pattern Brush Panel (pb-*) ===== */

/* Usage Hint */
.pb-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.08), rgba(var(--accent-rgb), 0.04));
    border-left: 3px solid var(--accent-color);
    border-radius: 0 6px 6px 0;
    margin-bottom: 12px;
    font-size: 11px;
    color: var(--text-muted);
}

.pb-hint i {
    color: var(--accent-color);
    font-size: 12px;
}

.pb-hint strong {
    color: var(--text-primary);
}

body.light-theme .pb-hint {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.06), rgba(var(--accent-rgb), 0.02));
}

/* Section Structure */
.pb-section {
    margin-bottom: 12px;
}

.pb-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.pb-section-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.pb-header-actions {
    display: flex;
    gap: 4px;
}

.pb-icon-btn {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 10px;
    transition: all 0.15s ease;
}

.pb-icon-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* Search */
.pb-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--overlay-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 8px;
    transition: border-color 0.15s ease;
}

.pb-search:focus-within {
    border-color: var(--accent-color);
}

.pb-search i {
    color: var(--text-muted);
    font-size: 11px;
}

.pb-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 11px;
    color: var(--text-primary);
}

.pb-search input::placeholder {
    color: var(--text-muted);
}

.pb-search-clear {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 10px;
    padding: 2px;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.pb-search-clear:hover {
    opacity: 1;
}

.pb-search-clear.hidden {
    display: none;
}

/* Category Pills */
.pb-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}

.pb-category {
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    font-size: 10px;
    color: var(--text-muted);
    transition: all 0.15s ease;
    white-space: nowrap;
}

.pb-category:hover {
    background: rgba(var(--accent-rgb), 0.1);
    border-color: rgba(var(--accent-rgb), 0.3);
    color: var(--text-primary);
}

.pb-category.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* Pattern Grid */
.pb-grid-wrap {
    max-height: 160px;
    overflow-y: auto;
    padding: 2px;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.pb-grid-wrap::-webkit-scrollbar {
    width: 4px;
}

.pb-grid-wrap::-webkit-scrollbar-track {
    background: transparent;
}

.pb-grid-wrap::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.pb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 6px;
}

/* Pattern Button (in grid) - kept as pattern-brush-btn for JS compatibility */
.pattern-brush-btn {
    aspect-ratio: 1.8 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--overlay-light);
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.12s ease;
    padding: 4px;
    position: relative;
    overflow: hidden;
}

.pattern-brush-btn:hover {
    background: rgba(var(--accent-rgb), 0.12);
    border-color: rgba(var(--accent-rgb), 0.4);
}

.pattern-brush-btn.active {
    background: rgba(var(--accent-rgb), 0.15);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.pattern-brush-btn svg {
    width: 100%;
    height: 100%;
    pointer-events: none;
    color: var(--text-primary);
}

body.light-theme .pattern-brush-btn {
    background: rgba(0, 0, 0, 0.03);
}

body.light-theme .pattern-brush-btn:hover {
    background: rgba(var(--accent-rgb), 0.08);
}

/* Preview Section */
.pb-preview {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    background: var(--overlay-light);
    border-radius: 6px;
    margin-bottom: 12px;
}

.pb-preview-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 70px;
}

.pb-preview-name {
    font-weight: 600;
    font-size: 11px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pb-preview-cat {
    font-size: 9px;
    color: var(--text-muted);
}

.pb-preview-display {
    flex: 1;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    overflow: hidden;
}

body.light-theme .pb-preview-display {
    background: rgba(0, 0, 0, 0.04);
}

.pb-preview-display svg {
    width: 100%;
    height: 100%;
    padding: 6px;
    color: var(--accent-color);
}

/* Settings Controls */
.pb-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow: hidden;
}

.pb-control {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    /* Allow flex children to shrink */
}

.pb-control label {
    flex-shrink: 0;
    width: 48px;
    font-size: 10px;
    color: var(--text-muted);
}

.pb-control-input {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    /* Allow flex children to shrink */
}

.pb-control-input input[type="range"] {
    flex: 1;
    min-width: 0;
    /* Allow range to shrink */
    height: 4px;
    background: var(--input-track);
    border-radius: 2px;
    -webkit-appearance: none;
    outline: none;
}

.pb-control-input input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.1s ease;
}

.pb-control-input input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.pb-val {
    flex-shrink: 0;
    width: 28px;
    text-align: right;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Color Control */
.pb-color-control {
    justify-content: space-between;
}

.pb-color-control input[type="color"] {
    flex-shrink: 0;
    width: 28px;
    height: 22px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: var(--overlay-light);
}

.pb-color-control input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.pb-color-control input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

/* Options Section */
.pb-options {
    margin-bottom: 12px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.pb-options summary {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    background: var(--overlay-light);
    cursor: pointer;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    list-style: none;
    transition: all 0.15s ease;
}

.pb-options summary::-webkit-details-marker {
    display: none;
}

.pb-options summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 8px;
    margin-left: auto;
    transition: transform 0.2s ease;
}

.pb-options[open] summary::after {
    transform: rotate(180deg);
}

.pb-options summary:hover {
    background: rgba(var(--accent-rgb), 0.08);
}

.pb-options-content {
    padding: 10px;
    background: var(--overlay-subtle);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Checkbox Style */
.pb-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-muted);
}

.pb-checkbox input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.pb-checkbox:hover {
    color: var(--text-primary);
}

/* Footer Actions */
.pb-footer {
    display: flex;
    gap: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.pb-text-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 10px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 0;
    transition: color 0.15s ease;
}

.pb-text-btn:hover {
    color: var(--accent-color);
}

.pb-text-btn i {
    font-size: 10px;
}

/* Keep panel-instructions for other uses */
.panel-instructions {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(var(--accent-rgb), 0.08);
    border-radius: 6px;
    margin-bottom: 12px;
    font-size: 11px;
    color: var(--text-muted);
}

.panel-instructions i {
    color: var(--accent-color);
    font-size: 14px;
}

body.light-theme .panel-instructions {
    background: rgba(var(--accent-rgb), 0.05);
}

/* Light theme overrides for tile action buttons */
body.light-theme .action-btn.secondary {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-color);
}

body.light-theme .action-btn.secondary:hover {
    background: rgba(0, 0, 0, 0.12);
}

body.light-theme .action-btn.danger {
    border-color: #dc3545;
    color: #dc3545;
}

body.light-theme .action-btn.danger:hover {
    background: #dc3545;
    color: white;
}

/* Light theme overrides for pattern grid/tile library */
body.light-theme .pattern-grid {
    background: rgba(0, 0, 0, 0.03);
}

body.light-theme .pattern-item {
    background: #f5f5f5;
    border-color: #ddd;
}

body.light-theme .pattern-item img {
    background: #fafafa;
}

body.light-theme .pattern-item .no-preview {
    background: #f0f0f0;
}

/* Pattern Brush Category Tabs - Old version hidden */
.pattern-brush-category-tabs {
    display: none;
}

.pattern-brush-category-tab {
    flex: 0 0 auto;
    padding: 6px 10px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 13px;
    transition: all 0.15s ease;
}

.pattern-brush-category-tab:hover {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--text-primary);
}

.pattern-brush-category-tab.active {
    background: var(--accent-color);
    color: white;
}

/* Pattern Brush Empty State */
.pattern-brush-grid-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 24px;
    color: var(--text-muted);
    text-align: center;
}

.pattern-brush-grid-empty i {
    font-size: 24px;
    opacity: 0.4;
}

.pattern-brush-grid-empty p {
    font-size: 12px;
    margin: 0;
}

/* Pattern Brush Hover Highlight on Canvas */
.pattern-brush-hover {
    outline: 2px dashed var(--accent-color) !important;
    outline-offset: 2px;
    animation: pattern-brush-hover-pulse 1s ease-in-out infinite;
}

@keyframes pattern-brush-hover-pulse {

    0%,
    100% {
        outline-color: var(--accent-color);
    }

    50% {
        outline-color: rgba(var(--accent-rgb), 0.5);
    }
}

/* Pattern Brush Preview on Canvas */
.pattern-brush-preview {
    pointer-events: none;
    opacity: 0.6;
}

/* Pattern Brush Applied Group */
.pattern-brush-group {
    /* Styles for applied pattern brush groups */
}

/* Original path hidden by pattern brush */
.pattern-brush-original {
    display: none !important;
}

/* Pattern Brush Tool Cursor */
.cursor-pattern-brush {
    cursor: crosshair;
}

/* Mobile Responsive for Pattern Brush */
@media (max-width: 768px) {
    .pb-grid {
        grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    }

    .pattern-brush-btn {
        aspect-ratio: 1.5 / 1;
    }

    .pb-footer {
        flex-direction: column;
        gap: 8px;
    }
}