:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --bg-light: #0f1620;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --border-color: #2d3748;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-light);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    overflow-y: auto;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    transition: var(--transition);
    z-index: 1000;
}

.sidebar-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Upload Button */
.upload-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.upload-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Search Box */
.search-box {
    margin-bottom: 2rem;
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-box input::placeholder {
    color: var(--text-secondary);
}

/* Categories */
.categories-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.categories-header h2 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.refresh-count-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: color 0.15s;
    flex-shrink: 0;
}

.refresh-count-btn:hover {
    color: var(--text-primary);
}

.refresh-count-btn.spinning svg {
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.category-sticky {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--bg-light);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    isolation: isolate;
}

.category-sticky::before {
    content: '';
    position: absolute;
    top: -1rem;
    left: -1rem;
    right: -1rem;
    bottom: -1px;
    background: var(--bg-light);
    z-index: -1;
    pointer-events: none;
}

.category-vectorized {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-color: #e94560;
}

.category-vectorized:hover {
    border-color: #ff6b6b;
    background: linear-gradient(135deg, #1f1f3a 0%, #1a2545 100%);
}

.category-vectorized.active {
    background: linear-gradient(135deg, #e94560 0%, #ff6b6b 100%);
    border-color: #e94560;
    color: white;
}

.category-item {
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-item:hover {
    background: var(--bg-dark);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.category-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: transparent;
}

.category-name {
    font-size: 0.875rem;
    font-weight: 500;
}

.category-count {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
}

/* View Options */
.view-options {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.view-options h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.grid-size-controls {
    display: flex;
    gap: 0.5rem;
}

.grid-btn {
    flex: 1;
    padding: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.75rem;
    transition: var(--transition);
}

.grid-btn:hover {
    background: var(--bg-dark);
}

.grid-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
}

/* Header */
.header {
    padding: 2rem;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-bottom: 1rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.current-category h2 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.current-category p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Gallery */
.gallery {
    padding: 2rem;
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.gallery.grid-small {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.gallery.grid-large {
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-item {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.gallery.grid-small .gallery-item img {
    height: 180px;
}

.gallery.grid-large .gallery-item img {
    height: 350px;
}

.gallery-item-info {
    padding: 1rem;
}

.gallery-item-title {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gallery-item-category {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Delete button for Vectorized items */
.gallery-item-delete {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    z-index: 10;
}

.gallery-item:hover .gallery-item-delete {
    opacity: 1;
}

.gallery-item-delete:hover {
    background: rgba(220, 53, 69, 1);
    transform: scale(1.1);
}

/* Loading */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Infinite Scroll Loader */
.infinite-scroll-loader {
    text-align: center;
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.infinite-scroll-loader p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

#scroll-sentinel {
    height: 1px;
    width: 100%;
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    font-size: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-close {
    top: 2rem;
    right: 2rem;
}

.lightbox-prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-info {
    margin-bottom: 1rem;
    text-align: center;
    max-width: 600px;
    width: 100%;
    order: -1;
}

.lightbox-info h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lightbox-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Lightbox Bottom Controls */
.lightbox-bottom-controls {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 2rem;
    background: rgba(0, 0, 0, 0.85);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 2001;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.lightbox-counter {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.lightbox-actions {
    display: flex;
    gap: 0.5rem;
}

.lightbox-action-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    font-size: 0.875rem;
    white-space: nowrap;
}

.lightbox-action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.lightbox-action-btn svg {
    pointer-events: none;
    flex-shrink: 0;
}

.lightbox-action-btn .btn-text {
    display: inline;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
        padding: 1rem;
    }

    .header {
        padding: 1rem;
    }

    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .lightbox-prev {
        left: 1rem;
    }

    .lightbox-next {
        right: 1rem;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }

    .lightbox-bottom-controls {
        bottom: 0.5rem;
        padding: 0.5rem 1rem;
        gap: 1rem;
    }

    .lightbox-counter {
        font-size: 0.75rem;
    }

    .lightbox-actions {
        gap: 0.5rem;
    }

    .lightbox-action-btn {
        padding: 0.4rem 0.75rem;
        gap: 0.35rem;
        font-size: 0.75rem;
    }

    .lightbox-action-btn svg {
        width: 14px;
        height: 14px;
    }

    .lightbox-content {
        max-width: 95vw;
        max-height: 85vh;
    }

    .lightbox-content img {
        max-height: 70vh;
    }
}

/* ============================================================================
   VECTORIZER INTEGRATED IN LIGHTBOX
   ============================================================================ */

/* Vectorizer Container - Two Panel Layout */
.vectorizer-container {
    display: flex;
    width: 100%;
    height: 100%;
    max-width: 95vw;
    max-height: 90vh;
    background: #121212;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    transition: margin-right 0.3s ease-out;
}

/* Vectorizer Workspace (Left Panel) */
.vectorizer-workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #18191a;
    position: relative;
    overflow: hidden;
    padding: 1.5rem;
    transition: all 0.3s ease-out;
}

/* Dual Canvas Layout */
.vectorizer-dual-canvas {
    display: flex;
    gap: 1.5rem;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
}

.vectorizer-canvas-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    max-width: 50%;
    height: 100%;
}

.vectorizer-canvas-panel .vectorizer-canvas-container {
    width: 100%;
    aspect-ratio: auto;
}

.vectorizer-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px 8px 0 0;
    margin-bottom: -1px;
}

.vectorizer-panel-header span:first-child {
    font-weight: 600;
    color: var(--text-primary);
}

.vectorizer-panel-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.vectorizer-panel-count {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 500;
}

.vectorizer-canvas-container {
    position: relative;
    max-width: 100%;
    max-height: calc(100% - 50px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    background: #252525;
    border-radius: 0 0 8px 8px;
    overflow: hidden;
}

.vectorizer-canvas-container.pan-mode {
    cursor: grab;
}

.vectorizer-canvas-container.pan-mode:active {
    cursor: grabbing;
}

/* Zoom Toolbar */
.canvas-zoom-toolbar {
    position: absolute;
    bottom: 10px;
    right: 10px;
    display: flex;
    gap: 4px;
    background: rgba(0, 0, 0, 0.7);
    padding: 6px;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    z-index: 1000;
    pointer-events: auto;
}

.zoom-btn {
    width: 32px;
    height: 32px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.zoom-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.zoom-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.zoom-btn.zoom-pan {
    font-size: 18px;
}

/* Both canvas containers - same styling */
#vectorizerCanvasContainer,
#vectorizerPreviewContainer {
    min-height: 300px;
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: #252525;
}

#vectorizerPreviewSvg,
#vectorizerSvg {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    pointer-events: none;
}

#vectorizerPreviewContainer .preview-placeholder {
    position: absolute;
    color: var(--text-secondary);
    font-size: 0.875rem;
    pointer-events: none;
}

#vectorizerCanvas {
    display: none;
    image-rendering: pixelated;
    pointer-events: none;
}

/* Show canvas only during vectorization */
#vectorizerCanvas.vectorizing {
    display: block;
    max-width: 100%;
    max-height: 60vh;
}

#vectorizerSvg path {
    transition: opacity 0.2s ease;
    cursor: crosshair;
    pointer-events: all;
}

#vectorizerSvg path:hover {
    stroke: #fff !important;
    stroke-width: 2px !important;
    stroke-opacity: 0.8;
}

/* Vectorizer Progress Bar */
.vectorizer-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    backdrop-filter: blur(10px);
}

.vectorizer-progress progress {
    flex: 1;
    height: 6px;
    border: none;
    border-radius: 3px;
    background: #333;
    overflow: hidden;
}

.vectorizer-progress progress::-webkit-progress-bar {
    background: #333;
    border-radius: 3px;
}

.vectorizer-progress progress::-webkit-progress-value {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

.vectorizer-progress progress::-moz-progress-bar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

.vectorizer-progress span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* Vectorizer Sidebar (Right Panel) */
.vectorizer-sidebar {
    width: 300px;
    flex-shrink: 0;
    background: #1a1a1a;
    border-left: 1px solid #333;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease-out;
}

.vectorizer-sidebar-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #1e1e1e;
}

.vectorizer-sidebar-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
}

.vectorizer-back-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-back-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.vectorizer-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
}

.vectorizer-option-group {
    margin-bottom: 1.5rem;
}

.vectorizer-option-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.vectorizer-value {
    font-family: 'SF Mono', 'Roboto Mono', monospace;
    color: #fff;
    font-weight: 600;
}

.vectorizer-sidebar input[type="range"] {
    width: 100%;
    height: 4px;
    background: #333;
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
    margin-bottom: 1rem;
}

.vectorizer-sidebar input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-sidebar input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.vectorizer-sidebar input[type="range"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.vectorizer-sidebar input[type="range"]:disabled::-webkit-slider-thumb {
    cursor: not-allowed;
}

/* Mode Toggle Button */
.vectorizer-mode-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.vectorizer-mode-toggle .vectorizer-mode-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: #242424;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    color: #888;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
}

.vectorizer-mode-toggle .vectorizer-mode-btn:hover {
    background: #2d2d2d;
    border-color: #555;
    color: #eee;
}

.vectorizer-mode-toggle .vectorizer-mode-btn.active {
    background: rgba(76, 175, 80, 0.2);
    border-color: #4CAF50;
    color: #4CAF50;
}

.vectorizer-mode-toggle .vectorizer-mode-btn.active svg {
    stroke: #4CAF50;
}

/* Vectorizer Swatches */
.vectorizer-swatches {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(32px, 1fr));
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.vectorizer-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.vectorizer-swatch:hover {
    transform: scale(1.15);
    border-color: rgba(255, 255, 255, 0.5);
    z-index: 1;
}

.vectorizer-swatch.active {
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.5);
    transform: scale(1.1);
}

.vectorizer-swatch.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 3px #000, 0 0 5px #000;
}

.vectorizer-swatch-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.vectorizer-swatch-wrapper.active {
    background: rgba(76, 175, 80, 0.15);
    border-radius: 6px;
}

.vectorizer-swatch-label {
    font-size: 0.6rem;
    color: #666;
}

.vectorizer-swatch-wrapper.active .vectorizer-swatch-label {
    color: #4CAF50;
    font-weight: bold;
}

/* Settings Toggle */
.vectorizer-settings-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #333;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-settings-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.vectorizer-advanced-settings {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #333;
}

.vectorizer-setting-row {
    margin-bottom: 1rem;
}

.vectorizer-setting-row label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.vectorizer-setting-row label span {
    color: #fff;
    font-family: 'SF Mono', 'Roboto Mono', monospace;
}

.vectorizer-btn-group {
    display: flex;
    gap: 0.5rem;
}

.vectorizer-mode-btn {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: #242424;
    border: 1px solid #3a3a3a;
    border-radius: 4px;
    color: #888;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-mode-btn:hover {
    background: #2d2d2d;
    border-color: #555;
    color: #eee;
}

.vectorizer-mode-btn[data-selected="true"] {
    background: #fff;
    border-color: #fff;
    color: #111;
}

.vectorizer-revectorize-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.vectorizer-revectorize-btn:hover {
    background: var(--primary-color);
    color: #fff;
}

/* Vectorizer Footer */
.vectorizer-sidebar-footer {
    padding: 1.25rem;
    border-top: 1px solid #333;
    background: #1e1e1e;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.vectorizer-download-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 0.5rem;
    background: #2d2d2d;
    border: 1px solid #444;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-download-btn:hover {
    background: #3d3d3d;
    border-color: #555;
    color: #fff;
}

#vectorizerDownloadSvg {
    border-color: #f59e0b;
    color: #f59e0b;
}

#vectorizerDownloadSvg:hover {
    background: #f59e0b;
    color: #000;
}

#vectorizerDownloadPng {
    border-color: #10b981;
    color: #10b981;
}

#vectorizerDownloadPng:hover {
    background: #10b981;
    color: #000;
}

/* Save buttons */
.vectorizer-save-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 0.5rem;
    background: #2d2d2d;
    border: 1px solid #444;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.vectorizer-save-btn:hover {
    background: #3d3d3d;
    border-color: #555;
    color: #fff;
}

#vectorizerSaveSvg {
    border-color: #8b5cf6;
    color: #8b5cf6;
}

#vectorizerSaveSvg:hover {
    background: #8b5cf6;
    color: #fff;
}

#vectorizerSavePng {
    border-color: #06b6d4;
    color: #06b6d4;
}

#vectorizerSavePng:hover {
    background: #06b6d4;
    color: #fff;
}

/* Save notification */
.save-notification {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: #10b981;
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 10000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

.save-notification.fade-out {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
    transition: all 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Hide gallery controls when in vectorizer mode */
.lightbox.vectorizer-mode .lightbox-prev,
.lightbox.vectorizer-mode .lightbox-next,
.lightbox.vectorizer-mode .lightbox-bottom-controls {
    display: none !important;
}

/* Position close button outside vectorizer container */
.lightbox.vectorizer-mode .lightbox-close {
    top: 0.5rem;
    right: 0.5rem;
    z-index: 3000;
}

/* Responsive */
@media (max-width: 900px) {
    .vectorizer-container {
        flex-direction: column;
        max-width: 100vw;
        max-height: 100vh;
        border-radius: 0;
    }

    .vectorizer-workspace {
        flex: 1;
        min-height: 50vh;
    }

    .vectorizer-dual-canvas {
        flex-direction: column;
        gap: 1rem;
    }

    .vectorizer-canvas-panel {
        max-width: 100%;
        max-height: 45%;
    }

    .vectorizer-sidebar {
        width: 100%;
        max-height: 50vh;
    }

    .vectorizer-swatches {
        max-height: 200px;
    }
}

@media (max-width: 768px) {
    .vectorizer-sidebar-header {
        padding: 1rem;
    }

    .vectorizer-sidebar-content {
        padding: 1rem;
    }

    .vectorizer-sidebar-footer {
        padding: 1rem;
    }
}

/* ============================================================================
   VECTORIZER COLOR CATEGORIES SIDEBAR
   ============================================================================ */

/* Categories Sidebar (Left Panel) */
.vectorizer-categories-sidebar {
    width: 220px;
    flex-shrink: 0;
    background: #1a1a1a;
    border-right: 1px solid #333;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.3s ease-out;
}

.vectorizer-categories-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid #333;
    background: #1e1e1e;
}

.vectorizer-categories-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.vectorizer-categories-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

/* Category Item */
.vectorizer-category-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.5rem;
    background: #242424;
    border: 1px solid #333;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vectorizer-category-item:hover {
    background: #2d2d2d;
    border-color: #444;
    transform: translateX(2px);
}

.vectorizer-category-item.active {
    background: rgba(102, 126, 234, 0.2);
    border-color: var(--primary-color);
}

.vectorizer-category-item.active .vectorizer-category-name {
    color: #fff;
}

/* Category Color Preview */
.vectorizer-category-preview {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.vectorizer-category-swatch {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Category Name */
.vectorizer-category-name {
    flex: 1;
    font-size: 0.8rem;
    color: #aaa;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Original Palette Option */
.vectorizer-category-original {
    background: linear-gradient(135deg, #2a2a2a 0%, #1f1f1f 100%);
    border-color: #444;
    margin-bottom: 1rem;
    position: relative;
}

.vectorizer-category-original::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #444, transparent);
}

.vectorizer-category-original:hover {
    background: linear-gradient(135deg, #333 0%, #282828 100%);
    border-color: #555;
}

.vectorizer-category-original.active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(102, 126, 234, 0.15) 100%);
    border-color: var(--primary-color);
}

.vectorizer-category-original-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 24px;
    color: #888;
}

.vectorizer-category-original:hover .vectorizer-category-original-icon {
    color: #aaa;
}

.vectorizer-category-original.active .vectorizer-category-original-icon {
    color: var(--primary-color);
}

/* Responsive adjustments for 3-panel layout */
@media (max-width: 1100px) {
    .vectorizer-categories-sidebar {
        width: 180px;
    }

    .vectorizer-category-name {
        font-size: 0.75rem;
    }
}

@media (max-width: 900px) {
    .vectorizer-categories-sidebar {
        display: none;
    }
}

/* Custom scrollbar for categories list */
.vectorizer-categories-list::-webkit-scrollbar {
    width: 6px;
}

.vectorizer-categories-list::-webkit-scrollbar-track {
    background: #1a1a1a;
}

.vectorizer-categories-list::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 3px;
}

.vectorizer-categories-list::-webkit-scrollbar-thumb:hover {
    background: #555;
}
/* ========================================
   Color Replacement Sidebar
   ======================================== */

/* Right sidebar for color replacement */
.color-replace-modal {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    background: #1a1a1a;
    border-left: 2px solid #4a9eff;
    z-index: 2100;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease-out;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.8);
    pointer-events: auto;
}

.color-replace-modal.active {
    transform: translateX(0);
    pointer-events: auto;
}

/* Hide left sidebar when color replace sidebar is open */
body:has(.color-replace-modal.active) .sidebar {
    transform: translateX(-300px);
    transition: transform 0.3s ease-out;
}

/* Adjust main content when sidebar is open */
body:has(.color-replace-modal.active) .lightbox {
    right: 320px;
    left: 0;
    transition: right 0.3s ease-out, left 0.3s ease-out;
}

/* Hide color categories sidebar when color replace modal is open */
body:has(.color-replace-modal.active) .vectorizer-categories-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease-out;
}

/* Adjust vectorizer container to account for color replace modal */
body:has(.color-replace-modal.active) .vectorizer-container {
    margin-right: 320px;
    transition: margin-right 0.3s ease-out;
}

/* Keep vectorizer workspace centered */
body:has(.color-replace-modal.active) .vectorizer-workspace {
    display: flex;
    align-items: center;
    justify-content: center;
}

.color-replace-backdrop {
    display: none;
}

/* Dialog is now the main sidebar container */
.color-replace-dialog {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

/* Header */
.color-replace-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid #333;
}

.color-replace-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

.color-replace-actions {
    display: flex;
    gap: 0.5rem;
}

.color-replace-actions button {
    width: 32px;
    height: 32px;
    border: none;
    background: #2a2a2a;
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.color-replace-actions button:hover:not(:disabled) {
    background: #3a3a3a;
    transform: scale(1.05);
}

.color-replace-actions button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Body - Single column */
.color-replace-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1rem 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.color-replace-pane h4 {
    margin: 0 0 1rem 0;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #999;
    font-weight: 600;
}

/* FROM pane */
.color-replace-preview-large {
    width: 100%;
    height: 60px;
    border-radius: 8px;
    border: 2px solid #444;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}

.color-replace-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.color-replace-hex {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    color: #fff;
}

.color-replace-index,
.color-replace-usage {
    font-size: 0.875rem;
    color: #999;
}

/* TO pane - iro.js picker */
#colorReplacePicker {
    margin: 0 auto 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.color-replace-hex-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.color-replace-hex-input label {
    font-size: 0.875rem;
    color: #999;
    font-weight: 600;
}

.color-replace-hex-input input {
    flex: 1;
    padding: 0.5rem;
    background: #2a2a2a;
    border: 1px solid #444;
    border-radius: 6px;
    color: #fff;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.color-replace-hex-input input:focus {
    outline: none;
    border-color: var(--primary-color, #4a9eff);
}

/* Quick pick grid */
.color-replace-quick-pick,
.color-replace-recent {
    margin-bottom: 1rem;
}

.color-replace-quick-pick h5,
.color-replace-recent h5 {
    margin: 0 0 0.75rem 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #999;
    font-weight: 600;
}

#colorReplaceQuickPalette,
#colorReplaceRecentColors {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.color-replace-chip {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 2px solid #444;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
}

.color-replace-chip:hover {
    transform: scale(1.15);
    border-color: var(--primary-color, #4a9eff);
    z-index: 1;
}

.color-replace-chip.live-preview {
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.3);
    border-color: var(--primary-color, #4a9eff);
}

/* Footer */
.color-replace-footer {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid #333;
}

.color-replace-footer-buttons {
    display: flex;
    gap: 0.5rem;
}

.color-replace-footer button {
    flex: 1;
    padding: 0.625rem 1rem;
    border: 1px solid #444;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.color-replace-footer .btn-apply {
    background: var(--primary-color, #4a9eff);
    color: #fff;
    border-color: var(--primary-color, #4a9eff);
}

.color-replace-footer .btn-apply:hover {
    background: #3a8eef;
    border-color: #3a8eef;
}

.color-replace-footer .btn-cancel {
    background: #2a2a2a;
    color: #ccc;
}

.color-replace-footer .btn-cancel:hover {
    background: #3a3a3a;
    color: #fff;
}

.color-replace-footer .btn-reset {
    background: #333;
    color: #ccc;
    padding: 0.5rem 1rem;
    border: 1px solid #444;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.color-replace-footer .btn-reset:hover {
    background: #444;
    color: #fff;
}

/* Live preview highlight on SVG */
.vectorizer-preview-highlight path.preview-affected {
    stroke: var(--primary-color, #4a9eff);
    stroke-width: 2px;
    filter: drop-shadow(0 0 4px rgba(74, 158, 255, 0.6));
}

/* Swatch editing state */
.vectorizer-swatch-wrapper.editing {
    position: relative;
}

.vectorizer-swatch-wrapper.editing .vectorizer-swatch {
    box-shadow: 0 0 0 3px var(--primary-color);
    transform: scale(1.1);
}

.vectorizer-swatch-wrapper.editing::after {
    content: '✎';
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    background: var(--primary-color);
    border-radius: 50%;
    font-size: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
    .color-replace-modal {
        width: 100%;
    }

    body:has(.color-replace-modal.active) .lightbox {
        right: 0;
    }

    body:has(.color-replace-modal.active) .vectorizer-container {
        margin-right: 0;
    }
}

    .color-replace-header {
        padding: 0.75rem 1rem;
    }

    .color-replace-body {
        padding: 1rem;
        gap: 1rem;
    }

    .color-replace-footer {
        padding: 0.75rem 1rem;
    }
}

/* ============================================================================
   FINGERPRINT PROTECTION WARNING
   ============================================================================ */

.fingerprint-warning-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.fingerprint-warning-content {
    background: var(--bg-card, #16213e);
    padding: 2rem;
    border-radius: 16px;
    max-width: 420px;
    text-align: center;
    border: 1px solid var(--border-color, #2d3748);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.fingerprint-warning-content h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #f59e0b;
}

.fingerprint-warning-content p {
    color: var(--text-secondary, #a0aec0);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.fingerprint-warning-content p strong {
    color: var(--text-primary, #fff);
}

.fingerprint-warning-buttons {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.fingerprint-warning-buttons button {
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

#fingerprintClose {
    background: var(--primary-color, #667eea);
    color: #fff;
    border-color: var(--primary-color, #667eea);
}

#fingerprintClose:hover {
    background: var(--primary-dark, #5568d3);
    transform: translateY(-1px);
}

#fingerprintDismiss {
    background: transparent;
    color: var(--text-secondary, #a0aec0);
    border-color: var(--border-color, #2d3748);
}

#fingerprintDismiss:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary, #fff);
}