/* Excalidraw-inspired Canvas Styles */

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e9e9e9;
    --text-primary: #1e1e1e;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --accent-color: #a8a5ff;
    --accent-hover: #9693e8;
    --selection-color: #a8a5ff;
    --selection-bg: rgba(168, 165, 255, 0.1);
    --danger-color: #ff6b6b;
    --success-color: #51cf66;
    --toolbar-bg: #ffffff;
    --panel-bg: #ffffff;
    --canvas-bg: #f8f9fa;
    --grid-color: #e5e5e5;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-hand: 'Virgil', 'Comic Sans MS', cursive;
    --font-normal: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-code: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
}

[data-theme="dark"] {
    --bg-primary: #1e1e1e;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border-color: #404040;
    --accent-color: #a8a5ff;
    --accent-hover: #b8b5ff;
    --selection-color: #a8a5ff;
    --selection-bg: rgba(168, 165, 255, 0.15);
    --toolbar-bg: #2d2d2d;
    --panel-bg: #2d2d2d;
    --canvas-bg: #121212;
    --grid-color: #2a2a2a;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    touch-action: none; /* Prevent default touch actions for canvas */
}

html, body {
    height: 100%;
    font-family: var(--font-normal);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    user-select: none;
}

/* Top Bar */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--toolbar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.top-bar-left, .top-bar-center, .top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
}

.menu-btn {
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.2s;
}

.menu-btn:hover {
    background: var(--bg-tertiary);
}

.canvas-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
}

.canvas-actions button {
    background: transparent;
    border: none;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: background 0.2s;
}

.canvas-actions button:hover {
    background: var(--bg-tertiary);
}

.top-bar-right button {
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    transition: background 0.2s;
}

.top-bar-right button:hover {
    background: var(--bg-tertiary);
}

/* Model Selector in Top Bar */
.model-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.model-selector .model-icon {
    color: var(--accent-color);
    flex-shrink: 0;
}

.model-selector select {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    outline: none;
    min-width: 120px;
}

.model-selector select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Left Toolbar */
.toolbar {
    position: fixed;
    top: 64px;
    left: 12px;
    background: var(--toolbar-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 100;
}

.tool-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tool-btn {
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s;
    position: relative;
}

.tool-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

.tool-btn.active:hover {
    background: var(--accent-hover);
}

.tool-btn .key-hint {
    position: absolute;
    bottom: 2px;
    right: 2px;
    font-size: 9px;
    opacity: 0.7;
}

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

.ai-btn {
    color: var(--accent-color);
}

.ai-btn:hover {
    background: var(--selection-bg);
}

/* Canvas Container */
.canvas-container {
    position: fixed;
    top: 48px;
    left: 0;
    right: 280px;
    bottom: 0;
    background: var(--canvas-bg);
    overflow: hidden;
    cursor: grab;
}

.canvas-container:active {
    cursor: grabbing;
}

.canvas-container.panning {
    cursor: grab;
}

.canvas-container.drawing {
    cursor: crosshair;
}

.canvas-container.erasing {
    cursor: not-allowed;
}

.canvas-container.texting {
    cursor: text;
}

#canvas {
    position: absolute;
    top: 0;
    left: 0;
}

/* Grid Pattern */
.canvas-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: 
        radial-gradient(circle, var(--grid-color) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
    opacity: 0.5;
}

/* Selection Box */
.selection-box {
    position: absolute;
    border: 2px solid var(--selection-color);
    background: var(--selection-bg);
    pointer-events: none;
}

.resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border: 2px solid var(--selection-color);
    border-radius: 50%;
    pointer-events: auto;
    cursor: pointer;
}

.resize-handle.nw { top: -5px; left: -5px; cursor: nw-resize; }
.resize-handle.n { top: -5px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.resize-handle.ne { top: -5px; right: -5px; cursor: ne-resize; }
.resize-handle.e { top: 50%; right: -5px; transform: translateY(-50%); cursor: e-resize; }
.resize-handle.se { bottom: -5px; right: -5px; cursor: se-resize; }
.resize-handle.s { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.resize-handle.sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.resize-handle.w { top: 50%; left: -5px; transform: translateY(-50%); cursor: w-resize; }

/* Text Editor */
.text-editor {
    position: absolute;
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    overflow: hidden;
    font-family: var(--font-hand);
    font-size: 20px;
    color: var(--text-primary);
    padding: 4px;
    line-height: 1.4;
    z-index: 50;
}

/* AI Image Tooltip */
.ai-image-tooltip {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    z-index: 150;
    animation: slideIn 0.3s ease;
}

/* Properties Panel */
.properties-panel {
    position: fixed;
    top: 48px;
    right: 0;
    width: 280px;
    bottom: 0;
    background: var(--panel-bg);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}

.panel-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.panel-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.property-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.property-group label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.property-group.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* AI Image Properties */
.ai-image-info {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 12px;
}

.ai-image-prompt {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.4;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* Color Pickers */
.color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.color-btn {
    width: 28px;
    height: 28px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.color-btn:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.color-btn.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--selection-bg);
}

.color-btn.transparent {
    background: repeating-linear-gradient(
        45deg,
        var(--bg-secondary),
        var(--bg-secondary) 4px,
        transparent 4px,
        transparent 8px
    );
}

.color-btn.transparent::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1px;
    height: 18px;
    background: var(--danger-color);
    transform: translate(-50%, -50%) rotate(45deg);
}

/* Stroke Width */
.stroke-width-picker,
.stroke-style-picker,
.roughness-picker,
.edges-picker {
    display: flex;
    gap: 6px;
}

.stroke-btn,
.stroke-style-btn,
.roughness-btn,
.edge-btn {
    flex: 1;
    height: 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.stroke-btn:hover,
.stroke-style-btn:hover,
.roughness-btn:hover,
.edge-btn:hover {
    background: var(--bg-tertiary);
}

.stroke-btn.active,
.stroke-style-btn.active,
.roughness-btn.active,
.edge-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* Opacity Slider */
.opacity-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    outline: none;
}

.opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
}

.opacity-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

#opacityValue {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: right;
}

/* Font Size */
.font-size-picker {
    display: flex;
    gap: 6px;
}

.font-size-btn {
    flex: 1;
    height: 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.font-size-btn:hover {
    background: var(--bg-tertiary);
}

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

/* Font Select */
.font-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.font-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Alignment Tools */
.alignment-picker {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
}

.alignment-picker button {
    height: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.alignment-picker button:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color);
}

/* Layer Actions */
.layer-actions {
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.action-btn {
    width: 100%;
    padding: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: all 0.2s;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: var(--bg-tertiary);
}

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

.action-btn.danger:hover {
    background: rgba(255, 107, 107, 0.1);
}

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

/* Bottom Controls */
.bottom-controls {
    position: fixed;
    bottom: 16px;
    left: 12px;
    right: 296px;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 100;
}

.bottom-left button,
.bottom-right > * {
    pointer-events: auto;
}

.bottom-left button {
    width: 40px;
    height: 40px;
    background: var(--toolbar-bg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: all 0.2s;
}

.bottom-left button:hover {
    background: var(--bg-secondary);
}

.collab-cursors {
    display: flex;
    gap: 4px;
}

.cursor-indicator {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent-color);
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

/* AI Panel */
.ai-panel {
    position: fixed;
    top: 64px;
    left: 72px;
    width: 340px;
    background: var(--panel-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 200;
    display: none;
    flex-direction: column;
    max-height: calc(100vh - 80px);
}

.ai-panel.active {
    display: flex;
}

.ai-panel-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-panel-header h3 {
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.close-btn {
    background: transparent;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

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

.ai-panel-content {
    padding: 16px;
    overflow-y: auto;
}

/* AI Mode Toggle */
.ai-mode-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
}

.ai-mode-btn {
    flex: 1;
    padding: 10px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.ai-mode-btn:hover {
    color: var(--text-primary);
}

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

.ai-description {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* AI Options */
.ai-options {
    margin-bottom: 12px;
}

.ai-options.hidden {
    display: none;
}

.ai-option-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.ai-option-group label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ai-option-row {
    display: flex;
    gap: 12px;
}

.ai-option-row .ai-option-group {
    flex: 1;
}

.ai-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    outline: none;
}

.ai-select:focus {
    border-color: var(--accent-color);
}

.ai-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

#aiInput {
    width: 100%;
    min-height: 80px;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    resize: vertical;
    font-family: inherit;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

#aiInput:focus {
    outline: none;
    border-color: var(--accent-color);
}

.ai-generate-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background 0.2s;
}

.ai-generate-btn:hover {
    background: var(--accent-hover);
}

.ai-generate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ai-suggestions {
    margin-top: 20px;
}

.ai-suggestions h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.suggestion-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.suggestion-btn {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: left;
    font-size: 13px;
    color: var(--text-primary);
    transition: all 0.2s;
}

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

.ai-status {
    margin-top: 12px;
    padding: 10px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    display: none;
}

.ai-status.loading {
    display: block;
    background: var(--selection-bg);
    color: var(--accent-color);
}

.ai-status.success {
    display: block;
    background: rgba(81, 207, 102, 0.1);
    color: var(--success-color);
}

.ai-status.error {
    display: block;
    background: rgba(255, 107, 107, 0.1);
    color: var(--danger-color);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--panel-bg);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 480px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

.export-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.export-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

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

.export-btn span {
    font-size: 13px;
    font-weight: 500;
}

.shortcuts-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.key {
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 4px;
    font-family: var(--font-code);
    font-size: 12px;
    font-weight: 600;
}

/* Drag and Drop */
body.drag-over::after {
    content: 'Drop files here';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(168, 165, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-color);
    z-index: 10000;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .properties-panel {
        width: 240px;
    }
    
    .canvas-container {
        right: 240px;
    }
    
    .bottom-controls {
        right: 256px;
    }
}

@media (max-width: 768px) {
    .properties-panel {
        position: fixed;
        right: -100%;
        width: 100%;
        max-width: 320px;
        transition: right 0.3s ease;
    }
    
    .properties-panel.active {
        right: 0;
    }
    
    .canvas-container {
        right: 0;
    }
    
    .bottom-controls {
        right: 16px;
    }
    
    .toolbar {
        top: auto;
        bottom: 16px;
        left: 50%;
        transform: translateX(-50%);
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        max-width: calc(100% - 32px);
    }
    
    .tool-group {
        flex-direction: row;
    }
    
    .ai-panel {
        left: 16px;
        right: 16px;
        width: auto;
    }
    
    .model-selector {
        display: none;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideIn {
    from { transform: translateY(-10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.ai-panel.active {
    animation: slideIn 0.2s ease;
}

.modal.active .modal-content {
    animation: fadeIn 0.2s ease;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Font Face for Hand-drawn style */
@font-face {
    font-family: 'Virgil';
    src: url('https://excalidraw.com/Virgil.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* Loading spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Toast notification */
.toast {
    animation: slideIn 0.2s ease;
}

/* No selection state */
.properties-panel.no-selection .property-group:not(.layer-actions) {
    opacity: 0.5;
    pointer-events: none;
}

/* Touch device optimizations */
@media (pointer: coarse) {
    .tool-btn {
        width: 48px;
        height: 48px;
    }
    
    .resize-handle {
        width: 16px;
        height: 16px;
    }
    
    .resize-handle.nw { top: -8px; left: -8px; }
    .resize-handle.n { top: -8px; }
    .resize-handle.ne { top: -8px; right: -8px; }
    .resize-handle.e { right: -8px; }
    .resize-handle.se { bottom: -8px; right: -8px; }
    .resize-handle.s { bottom: -8px; }
    .resize-handle.sw { bottom: -8px; left: -8px; }
    .resize-handle.w { left: -8px; }
}

/* Image Loading Overlay */
.image-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.image-loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Revised Prompt Tooltip */
.revised-prompt-tooltip {
    position: absolute;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 300px;
    z-index: 1000;
    font-size: 12px;
    color: var(--text-secondary);
}

.revised-prompt-tooltip strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text-primary);
}