/* ===== CSS VARIABLES FOR THEMING ===== */
        :root {
            /* Light mode (default) */
            --bg-primary: #ffffff;
            --bg-secondary: #f8fafc;
            --bg-tertiary: #f1f5f9;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-tertiary: #94a3b8;
            --border-primary: #e2e8f0;
            --border-secondary: #cbd5e1;
            --accent-primary: #2563eb;
            --accent-secondary: #3b82f6;
            --accent-hover: #1d4ed8;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
            --shadow-lg: 0 20px 25px rgba(0,0,0,0.1);
            --error: #ef4444;
            --success: #10b981;
            --warning: #f59e0b;
        }

        [data-theme="dark"] {
            /* Dark mode */
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --bg-tertiary: #334155;
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --text-tertiary: #94a3b8;
            --border-primary: #334155;
            --border-secondary: #475569;
            --accent-primary: #3b82f6;
            --accent-secondary: #60a5fa;
            --accent-hover: #2563eb;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
            --shadow-lg: 0 20px 25px rgba(0,0,0,0.4);
            --error: #f87171;
            --success: #34d399;
            --warning: #fbbf24;
        }

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

        body {
            font-family: system-ui, -apple-system, sans-serif;
            font-size: 14px;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            overflow: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        /* Layout principal */
        .app-container {
            display: flex;
            flex-direction: column;
            height: 100vh;
        }

        /* Barra de herramientas superior */
        .toolbar {
            height: 60px;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            padding: 0 20px;
            gap: 12px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
            white-space: nowrap;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }

        .toolbar-btn {
            padding: 8px 16px;
            border: 1px solid var(--border-primary);
            border-radius: 6px;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .toolbar-btn:hover {
            background: var(--bg-secondary);
            border-color: var(--border-secondary);
        }

        .toolbar-btn.primary {
            background: var(--accent-primary);
            color: white;
            border-color: var(--accent-primary);
        }

        .toolbar-btn.primary:hover {
            background: var(--accent-secondary);
        }

        .toolbar-btn.active {
            background: var(--bg-tertiary);
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        .toolbar-divider {
            width: 1px;
            height: 30px;
            background: var(--border-primary);
            transition: background-color 0.3s ease;
        }

        /* Layout de 3 paneles */
        .main-content {
            display: flex;
            flex: 1;
            overflow: hidden;
        }

        /* Panel izquierdo - Componentes */
        .components-panel {
            width: 250px;
            background: var(--bg-secondary);
            border-right: 1px solid var(--border-primary);
            overflow-y: auto;
            padding: 16px;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }

        .panel-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

        .component-category {
            margin-bottom: 20px;
        }

        .category-title {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: color 0.3s ease;
        }

        .category-arrow {
            transition: transform 0.2s;
        }

        .category-title.collapsed .category-arrow {
            transform: rotate(-90deg);
        }

        .component-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .component-list.collapsed {
            display: none;
        }

        .component-item {
            padding: 10px 12px;
            background: var(--bg-primary);
            border: 1px solid var(--border-primary);
            border-radius: 6px;
            cursor: grab;
            transition: all 0.3s ease;
            font-size: 13px;
        }

        .component-item:hover {
            border-color: var(--accent-primary);
            background: var(--bg-tertiary);
            transform: translateX(2px);
        }

        .component-item:active {
            cursor: grabbing;
        }

        .component-item.dragging {
            opacity: 0.5;
            transform: scale(0.95);
        }

        .drop-zone {
            background-color: #f0f9ff;
            border: 2px dashed #2563eb;
        }

        /* Panel central - Canvas */
        .canvas-panel {
            flex: 1;
            background: var(--bg-tertiary);
            overflow: auto;
            padding: 20px;
            display: flex;
            justify-content: center;
            transition: background-color 0.3s ease;
        }

        .canvas-wrapper {
            background: white;
            min-height: 600px;
            width: 100%;
            box-shadow: var(--shadow-md);
            transition: width 0.3s, box-shadow 0.3s ease;
            position: relative;
        }

        .canvas-wrapper.tablet {
            width: 768px;
        }

        .canvas-wrapper.mobile {
            width: 375px;
        }

        #canvas {
            min-height: 600px;
            padding: 20px;
        }

        /* Elementos en el canvas */
        .canvas-element {
            position: relative;
            outline: 2px solid transparent;
            transition: outline 0.2s;
        }

        .canvas-element:hover {
            outline: 2px solid #cbd5e1;
        }

        .canvas-element.selected {
            outline: 2px dashed #2563eb !important;
        }

        .delete-btn {
            position: absolute;
            top: -10px;
            right: -10px;
            width: 24px;
            height: 24px;
            background: #ef4444;
            color: white;
            border: 2px solid white;
            border-radius: 50%;
            cursor: pointer;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: bold;
            z-index: 100;
        }

        .canvas-element.selected .delete-btn {
            display: flex;
        }

        .canvas-element[contenteditable="true"] {
            outline: 2px solid #10b981 !important;
        }

        .drop-indicator {
            height: 4px;
            background: #2563eb;
            margin: 4px 0;
            border-radius: 2px;
            display: none;
        }

        /* Estilos para drag & drop de elementos del canvas */
        .canvas-element.dragging-canvas-element {
            opacity: 0.5;
            transform: scale(0.95);
            outline: 2px dashed #3b82f6 !important;
        }

        .canvas-element.drop-zone-active {
            background-color: rgba(59, 130, 246, 0.1);
            outline: 2px dashed #3b82f6 !important;
        }

        .canvas-element[draggable="true"]:hover {
            cursor: move;
        }

        .canvas-element[draggable="true"].selected:hover {
            cursor: move;
        }

        /* Indicador de posición de drop mejorado */
        .drop-indicator {
            position: absolute;
            height: 3px;
            background: linear-gradient(90deg, #3b82f6, #1d4ed8);
            border-radius: 2px;
            z-index: 1000;
            display: none;
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
            animation: pulse-drop 1s infinite;
        }

        @keyframes pulse-drop {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }

        .drop-indicator.active {
            display: block;
        }

        /* Panel derecho - Propiedades */
        .properties-panel {
            width: 300px;
            background: var(--bg-secondary);
            border-left: 1px solid var(--border-primary);
            overflow-y: auto;
            padding: 16px;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }

        .properties-empty {
            color: var(--text-secondary);
            text-align: center;
            margin-top: 40px;
            font-size: 13px;
            line-height: 1.6;
            transition: color 0.3s ease;
        }

        .property-section {
            margin-bottom: 20px;
        }

        .section-title {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-primary);
            transition: color 0.3s ease, border-color 0.3s ease;
        }

        .property-group {
            margin-bottom: 12px;
        }

        .property-label {
            display: block;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
            transition: color 0.3s ease;
        }

        .property-input {
            width: 100%;
            padding: 8px;
            border: 1px solid var(--border-primary);
            border-radius: 4px;
            font-size: 13px;
            background: var(--bg-primary);
            color: var(--text-primary);
            transition: all 0.3s ease;
        }

        .property-input:focus {
            outline: none;
            border-color: var(--accent-primary);
        }

        .property-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }

        .property-grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
        }

        .property-grid-4 input {
            padding: 6px;
            font-size: 12px;
        }

        .text-align-buttons {
            display: flex;
            gap: 4px;
        }

        .text-align-btn {
            flex: 1;
            padding: 8px;
            border: 1px solid #e2e8f0;
            background: white;
            cursor: pointer;
            border-radius: 4px;
            font-size: 12px;
        }

        .text-align-btn.active {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }

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

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        /* Toast notifications */
        .toast {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            padding: 12px 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-primary);
            z-index: 1000;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                transform: translateY(100px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        /* Galería de Plantillas */
        .gallery-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--bg-primary);
            z-index: 2000;
            overflow-y: auto;
            animation: fadeIn 0.3s ease;
            transition: background-color 0.3s ease;
        }

        .gallery-screen.hidden {
            display: none;
        }

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

        .gallery-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        .gallery-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .gallery-header h1 {
            font-size: 48px;
            font-weight: bold;
            color: var(--text-primary);
            margin: 0 0 16px 0;
            transition: color 0.3s ease;
        }

        .gallery-header p {
            font-size: 18px;
            color: var(--text-secondary);
            margin: 0;
            transition: color 0.3s ease;
        }

        .quick-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            margin-bottom: 60px;
        }

        .quick-action-btn {
            min-width: 200px;
            padding: 16px 32px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid var(--border-primary);
            background: var(--bg-primary);
            color: var(--text-primary);
        }

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

        .quick-action-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .category-filters {
            display: flex;
            gap: 12px;
            justify-content: center;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .category-btn {
            padding: 10px 20px;
            border: 2px solid var(--border-primary);
            background: var(--bg-primary);
            color: var(--text-secondary);
            border-radius: 20px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
        }

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

        .category-btn:hover {
            border-color: var(--accent-primary);
        }

        .templates-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }

        @media (max-width: 1024px) {
            .templates-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .templates-grid {
                grid-template-columns: 1fr;
            }
        }

        .template-card {
            background: var(--bg-primary);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all 0.3s ease;
            cursor: pointer;
            border: 1px solid var(--border-primary);
        }

        .template-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.15);
        }

        .template-preview {
            width: 100%;
            height: 300px;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 80px;
            border-bottom: 1px solid #e2e8f0;
        }

        .template-info {
            padding: 20px;
        }

        .template-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: bold;
            margin-bottom: 12px;
        }

        .badge-negocios { background: #dbeafe; color: #1e40af; }
        .badge-personal { background: #fef3c7; color: #92400e; }
        .badge-blog { background: #f3e8ff; color: #7e22ce; }
        .badge-servicios { background: #dcfce7; color: #166534; }
        .badge-tienda { background: #fee2e2; color: #991b1b; }

        .template-info h3 {
            font-size: 20px;
            font-weight: bold;
            color: var(--text-primary);
            margin: 0 0 8px 0;
            transition: color 0.3s ease;
        }

        .template-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 16px 0;
            line-height: 1.5;
            transition: color 0.3s ease;
        }

        .use-template-btn {
            width: 100%;
            padding: 10px;
            background: var(--accent-primary);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .use-template-btn:hover {
            background: var(--accent-hover);
        }

        /* Input file oculto */
        #loadProjectInput {
            display: none;
        }

        /* Estilos para componentes preconstruidos */
        .component-card {
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            background: white;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            max-width: 400px;
        }

        .component-card img {
            width: 100%;
            border-radius: 8px 8px 0 0;
        }

        .component-card-body {
            padding: 20px;
        }

        .component-navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 32px;
            background: #1e293b;
            color: white;
        }

        .component-navbar-brand {
            font-size: 1.5rem;
            font-weight: bold;
        }

        .component-navbar-nav {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .component-navbar-nav a {
            color: white;
            text-decoration: none;
        }

        .component-hero {
            min-height: 400px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            text-align: center;
            padding: 60px 20px;
        }

        .component-footer {
            background: #1e293b;
            color: white;
            padding: 40px 20px;
            text-align: center;
        }

        /* Estilos para carga de archivos */
        .file-drop-zone {
            background-color: #f0f9ff !important;
            border: 3px dashed #2563eb !important;
        }

        .file-preview-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
        }

        .file-preview-modal .modal-content {
            background: white;
            border-radius: 8px;
            width: 90%;
            max-width: 800px;
            max-height: 90vh;
            overflow: hidden;
        }

        .file-preview-modal .modal-header {
            padding: 20px;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .file-preview-modal .modal-body {
            padding: 20px;
        }

        .file-preview-modal .preview-actions {
            margin-top: 20px;
            display: flex;
            gap: 12px;
            justify-content: flex-end;
        }

        .file-preview-modal .load-btn {
            background: #2563eb;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 6px;
            cursor: pointer;
        }

        .file-preview-modal .cancel-btn {
            background: #6b7280;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 6px;
            cursor: pointer;
        }

        /* Panel de Proyectos */
        .projects-panel, .components-library-panel {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 1500;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .projects-panel.hidden, .components-library-panel.hidden {
            display: none;
        }

        .panel-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
        }

        .panel-content {
            background: var(--bg-primary);
            border-radius: 12px;
            width: 90%;
            max-width: 900px;
            max-height: 80vh;
            overflow: hidden;
            position: relative;
            z-index: 10;
            box-shadow: var(--shadow-lg);
            transition: background-color 0.3s ease;
        }

        .panel-header {
            padding: 20px 30px;
            border-bottom: 1px solid var(--border-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-secondary);
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }

        .panel-header h2 {
            margin: 0;
            color: var(--text-primary);
            font-size: 20px;
            transition: color 0.3s ease;
        }

        .close-panel-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-secondary);
            padding: 0;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color 0.3s ease;
        }

        .close-panel-btn:hover {
            color: var(--text-primary);
        }

        .panel-body {
            padding: 30px;
            overflow-y: auto;
            max-height: calc(80vh - 80px);
        }

        .project-actions {
            display: flex;
            gap: 12px;
            margin-bottom: 30px;
        }

        .action-btn {
            padding: 10px 20px;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            background: white;
            color: #1e293b;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.2s;
        }

        .action-btn.primary {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }

        .action-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .projects-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .project-card {
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            overflow: hidden;
            background: white;
            transition: all 0.2s;
            cursor: pointer;
        }

        .project-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .project-thumbnail {
            width: 100%;
            height: 150px;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            color: #94a3b8;
        }

        .project-info {
            padding: 16px;
        }

        .project-name {
            font-weight: 600;
            color: #1e293b;
            margin: 0 0 8px 0;
            font-size: 16px;
        }

        .project-meta {
            font-size: 12px;
            color: #64748b;
            margin-bottom: 12px;
        }

        .project-actions-card {
            display: flex;
            gap: 8px;
        }

        .project-action-btn {
            padding: 4px 8px;
            border: 1px solid #e2e8f0;
            border-radius: 4px;
            background: white;
            color: #64748b;
            cursor: pointer;
            font-size: 12px;
            transition: all 0.2s;
        }

        .project-action-btn:hover {
            background: #f8fafc;
            color: #1e293b;
        }

        .project-action-btn.danger:hover {
            background: #fef2f2;
            color: #dc2626;
            border-color: #fecaca;
        }

        /* Biblioteca de Componentes */
        .component-search-bar {
            margin-bottom: 20px;
        }

        .component-search-bar input {
            width: 100%;
            padding: 12px;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            font-size: 14px;
        }

        .library-components-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 16px;
        }

        .library-component-card {
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            overflow: hidden;
            background: white;
            transition: all 0.2s;
            cursor: pointer;
        }

        .library-component-card:hover {
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .component-preview {
            width: 100%;
            height: 120px;
            background: #f8fafc;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: #64748b;
            overflow: hidden;
        }

        .component-info {
            padding: 12px;
        }

        .component-name {
            font-weight: 600;
            color: #1e293b;
            margin: 0 0 6px 0;
            font-size: 14px;
        }

        .component-tags {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
        }

        .component-tag {
            background: #f1f5f9;
            color: #475569;
            padding: 2px 6px;
            border-radius: 12px;
            font-size: 10px;
            font-weight: 500;
        }

        /* Modal */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
        }

        .modal.hidden {
            display: none;
        }

        .modal .modal-content {
            background: var(--bg-primary);
            border-radius: 8px;
            width: 90%;
            max-width: 500px;
            overflow: hidden;
            transition: background-color 0.3s ease;
        }

        .modal .modal-header {
            padding: 20px;
            border-bottom: 1px solid var(--border-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: border-color 0.3s ease;
        }

        .modal .modal-header h3 {
            margin: 0;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

        .modal .modal-close {
            background: none;
            border: none;
            font-size: 20px;
            cursor: pointer;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .modal .modal-body {
            padding: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .form-group input {
            width: 100%;
            padding: 10px;
            border: 1px solid var(--border-primary);
            border-radius: 6px;
            font-size: 14px;
            background: var(--bg-primary);
            color: var(--text-primary);
            transition: all 0.3s ease;
        }

        .modal-actions {
            display: flex;
            gap: 12px;
            justify-content: flex-end;
        }

        .btn {
            padding: 10px 20px;
            border: 1px solid var(--border-primary);
            border-radius: 6px;
            background: var(--bg-primary);
            color: var(--text-primary);
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s ease;
        }

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

        /* Inputs ocultos */
        #importHTMLInput, #importProjectInput {
            display: none;
        }

        /* ===== ESTILOS PARA NUEVAS FUNCIONALIDADES ===== */

        /* Command Palette */
        .command-palette-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            display: flex;
            align-items: flex-start;
            justify-content: center;
            z-index: 3000;
            padding-top: 100px;
        }

        .command-palette-content {
            background: white;
            border-radius: 12px;
            width: 90%;
            max-width: 600px;
            max-height: 500px;
            overflow: hidden;
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
        }

        .command-palette-header {
            display: flex;
            align-items: center;
            padding: 16px;
            border-bottom: 1px solid #e2e8f0;
        }

        .command-palette-header input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 16px;
            padding: 8px;
        }

        .command-palette-header button {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #64748b;
            padding: 0 8px;
        }

        .command-palette-list {
            max-height: 400px;
            overflow-y: auto;
        }

        .command-item {
            padding: 12px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background 0.2s;
        }

        .command-item:hover {
            background: #f1f5f9;
        }

        .command-description {
            color: #1e293b;
            font-weight: 500;
        }

        .command-shortcut {
            color: #64748b;
            font-size: 12px;
            font-family: monospace;
            background: #f1f5f9;
            padding: 4px 8px;
            border-radius: 4px;
        }

        .command-empty {
            padding: 40px;
            text-align: center;
            color: #64748b;
        }

        /* Quick Help Modal */
        .quick-help-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 3000;
        }

        .quick-help-content {
            background: white;
            border-radius: 12px;
            width: 90%;
            max-width: 800px;
            max-height: 80vh;
            overflow: hidden;
            box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
        }

        .quick-help-header {
            padding: 20px 30px;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #f8fafc;
        }

        .quick-help-header h3 {
            margin: 0;
            color: #1e293b;
        }

        .quick-help-header button {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #64748b;
        }

        .quick-help-body {
            padding: 20px 30px;
            max-height: calc(80vh - 80px);
            overflow-y: auto;
        }

        .shortcuts-table {
            width: 100%;
            border-collapse: collapse;
        }

        .shortcuts-table th,
        .shortcuts-table td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #e2e8f0;
        }

        .shortcuts-table th {
            background: #f8fafc;
            font-weight: 600;
            color: #475569;
        }

        .shortcuts-table kbd {
            background: #f1f5f9;
            padding: 4px 8px;
            border-radius: 4px;
            font-family: monospace;
            font-size: 12px;
            border: 1px solid #cbd5e1;
        }

        /* Responsive Tester Panel */
        .responsive-tester-panel {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 1500;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .responsive-tester-panel.hidden {
            display: none;
        }

        .device-selector h3,
        .custom-size-section h3,
        .orientation-section h3 {
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            margin: 0 0 16px 0;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .device-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 12px;
            margin-bottom: 30px;
        }

        .device-btn {
            padding: 16px 12px;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            background: white;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .device-btn:hover {
            border-color: #2563eb;
            background: #f0f9ff;
            transform: translateY(-2px);
        }

        .device-icon {
            font-size: 28px;
        }

        .device-name {
            font-weight: 600;
            color: #1e293b;
            font-size: 13px;
        }

        .device-size {
            font-size: 11px;
            color: #64748b;
        }

        .custom-size-inputs {
            display: flex;
            gap: 12px;
            align-items: flex-end;
            margin-bottom: 30px;
        }

        .custom-size-inputs .input-group {
            flex: 1;
        }

        .custom-size-inputs label {
            display: block;
            margin-bottom: 6px;
            font-size: 12px;
            font-weight: 500;
            color: #475569;
        }

        .custom-size-inputs input {
            width: 100%;
            padding: 10px;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            font-size: 14px;
        }

        .orientation-buttons {
            display: flex;
            gap: 12px;
            margin-bottom: 30px;
        }

        .orientation-buttons .btn {
            flex: 1;
        }

        .orientation-buttons .btn.active {
            background: #2563eb;
            color: white;
        }

        .test-info {
            background: #f8fafc;
            padding: 16px;
            border-radius: 8px;
            margin-bottom: 20px;
        }

        .test-info > div {
            margin-bottom: 8px;
        }

        .test-info > div:last-child {
            margin-bottom: 0;
        }

        .test-info strong {
            color: #475569;
            font-size: 13px;
        }

        .test-info span {
            color: #1e293b;
            font-size: 13px;
        }

        .test-actions {
            display: flex;
            gap: 12px;
        }

        .test-actions .btn {
            flex: 1;
        }

        /* Botones de toolbar mejorados */
        .toolbar-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .toolbar-btn:disabled:hover {
            background: white;
            border-color: #e2e8f0;
        }

        /* Animaciones */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideIn {
            from {
                transform: translateX(100px);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        /* Utilidades */
        .hidden {
            display: none !important;
        }

        .active {
            background: #dbeafe !important;
            border-color: #2563eb !important;
            color: #2563eb !important;
        }