/* ==========================================================================
           VARIABLES Y CONFIGURACIÓN GLOBAL
           ========================================================================== */
        :root {
            --color-primary: #1a1a1a;
            --color-secondary: #d4af37;
            --color-accent: #8b7355;
            --color-background: #f9f9f9;
            --color-surface: #ffffff;
            --color-text: #333333;
            --color-text-light: #666666;
            --color-border: #e0e0e0;
            --color-error: #c41e3a;
            --color-success: #2e8b57;
            --font-serif: 'Crimson Text', Georgia, serif;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --spacing-xs: 0.25rem;
            --spacing-sm: 0.5rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-xxl: 3rem;
            --container-max-width: 1200px;
            --border-radius: 4px;
            --transition-speed: 0.3s;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
            --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
        }

        /* Reset y base */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            line-height: 1.6;
            color: var(--color-text);
            background-color: var(--color-background);
            -webkit-font-smoothing: antialiased;
        }

        /* Utilidades */
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
        .container {
            width: 100%;
            max-width: var(--container-max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        /* Botones */
        .btn {
            display: inline-block;
            padding: var(--spacing-sm) var(--spacing-lg);
            border: 2px solid var(--color-secondary);
            border-radius: var(--border-radius);
            font-family: var(--font-sans);
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: all var(--transition-speed) ease;
            background-color: var(--color-secondary);
            color: var(--color-primary);
        }
        .btn:hover, .btn:focus {
            background-color: var(--color-accent);
            border-color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            outline: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
        }
        .btn-secondary:hover, .btn-secondary:focus {
            background-color: var(--color-secondary);
            color: var(--color-primary);
        }

        /* ==========================================================================
           HEADER Y NAVEGACIÓN
           ========================================================================== */
        .site-header {
            background-color: var(--color-surface);
            border-bottom: 2px solid var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }
        .main-nav { padding: var(--spacing-md) 0; }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: var(--container-max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .logo {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: var(--color-primary);
            transition: color var(--transition-speed) ease;
        }
        .logo h1 {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.2;
            margin: 0;
        }
        .logo .tagline {
            font-size: 0.875rem;
            color: var(--color-text-light);
            font-style: italic;
        }
        .logo:hover, .logo:focus { color: var(--color-secondary); outline: none; }
        
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: var(--spacing-sm);
        }
        .hamburger {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-primary);
            position: relative;
            transition: background-color var(--transition-speed) ease;
        }
        .hamburger::before, .hamburger::after {
            content: '';
            position: absolute;
            width: 24px;
            height: 2px;
            background-color: var(--color-primary);
            transition: all var(--transition-speed) ease;
        }
        .hamburger::before { top: -8px; }
        .hamburger::after { top: 8px; }
        .mobile-menu-toggle[aria-expanded="true"] .hamburger {
            background-color: transparent;
        }
        .mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
            transform: rotate(-45deg) translate(7px, -6px);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: var(--spacing-xl);
        }
        .nav-link {
            font-family: var(--font-sans);
            font-weight: 500;
            color: var(--color-text);
            text-decoration: none;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--border-radius);
            transition: all var(--transition-speed) ease;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-secondary);
            transition: width var(--transition-speed) ease;
        }
        .nav-link:hover, .nav-link:focus {
            color: var(--color-secondary);
            outline: none;
        }
        .nav-link:hover::after, .nav-link:focus::after { width: 100%; }
        .nav-link.active {
            color: var(--color-secondary);
            background-color: rgba(212, 175, 55, 0.1);
        }
        .nav-link.active::after { width: 100%; }

        /* ==========================================================================
           MIGAS DE PAN
           ========================================================================== */
        .breadcrumbs {
            background-color: var(--color-surface);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--color-border);
        }
        .breadcrumbs ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            max-width: var(--container-max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        .breadcrumbs li {
            display: flex;
            align-items: center;
            font-size: 0.875rem;
            color: var(--color-text-light);
        }
        .breadcrumbs li:not(:last-child)::after {
            content: '/';
            margin-left: var(--spacing-sm);
            color: var(--color-border);
        }
        .breadcrumbs a {
            color: var(--color-text);
            text-decoration: none;
            transition: color var(--transition-speed) ease;
        }
        .breadcrumbs a:hover, .breadcrumbs a:focus {
            color: var(--color-secondary);
            outline: none;
        }
        .breadcrumbs [aria-current="page"] {
            color: var(--color-text-light);
            font-weight: 500;
        }

        /* ==========================================================================
           CONTENIDO PRINCIPAL
           ========================================================================== */
        .page { display: none; min-height: 70vh; }
        .page.active { display: block; }
        .main-content { padding: var(--spacing-xl) 0; }

        /* ==========================================================================
           HOME / BIOGRAFÍA
           ========================================================================== */
        .hero-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xxl);
            align-items: center;
            margin-bottom: var(--spacing-xxl);
            padding: var(--spacing-xl) 0;
        }
        .hero-image img {
            width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-lg);
        }
        .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 3rem;
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: var(--spacing-md);
            color: var(--color-primary);
        }
        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--color-text-light);
            margin-bottom: var(--spacing-xl);
            font-style: italic;
        }
        .quick-facts {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-lg);
            margin-top: var(--spacing-xl);
        }
        .fact-card {
            background-color: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-speed) ease;
        }
        .fact-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .fact-card h3 {
            font-family: var(--font-serif);
            font-size: 1.125rem;
            color: var(--color-secondary);
            margin-bottom: var(--spacing-sm);
        }
        .fact-card p {
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .biography {
            max-width: 800px;
            margin: 0 auto;
        }
        .article-header {
            text-align: center;
            margin-bottom: var(--spacing-xxl);
            padding-bottom: var(--spacing-lg);
            border-bottom: 2px solid var(--color-secondary);
        }
        .article-toc {
            margin-top: var(--spacing-xl);
            padding: var(--spacing-lg);
            background-color: var(--color-surface);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
        }
        .article-toc h3 {
            font-family: var(--font-serif);
            margin-bottom: var(--spacing-md);
        }
        .article-toc ol {
            list-style-position: inside;
            text-align: left;
        }
        .article-toc a {
            color: var(--color-text);
            text-decoration: none;
            transition: color var(--transition-speed) ease;
        }
        .article-toc a:hover, .article-toc a:focus {
            color: var(--color-secondary);
            outline: none;
        }
        .bio-section {
            margin-bottom: var(--spacing-xxl);
        }
        .bio-section h3 {
            font-family: var(--font-serif);
            font-size: 1.75rem;
            margin-bottom: var(--spacing-lg);
            color: var(--color-primary);
        }
        .bio-section p {
            margin-bottom: var(--spacing-md);
            text-align: justify;
        }
        .bio-section ul {
            margin: var(--spacing-md) 0 var(--spacing-lg);
            padding-left: var(--spacing-lg);
        }
        .bio-section li {
            margin-bottom: var(--spacing-sm);
        }
        .image-float-right {
            float: right;
            margin: 0 0 var(--spacing-lg) var(--spacing-lg);
            width: 300px;
        }
        .image-float-right figure {
            margin: 0;
        }
        .image-float-right figcaption {
            font-size: 0.875rem;
            color: var(--color-text-light);
            font-style: italic;
            margin-top: var(--spacing-xs);
        }
        .timeline {
            margin: var(--spacing-lg) 0;
            padding-left: var(--spacing-lg);
            border-left: 2px solid var(--color-secondary);
        }
        .timeline-item {
            margin-bottom: var(--spacing-lg);
        }
        .timeline-item .year {
            display: inline-block;
            background-color: var(--color-secondary);
            color: var(--color-primary);
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }
        .works-highlight li {
            background-color: rgba(212, 175, 55, 0.1);
            padding: var(--spacing-md);
            margin-bottom: var(--spacing-md);
            border-left: 4px solid var(--color-secondary);
        }
        .works-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
        }
        .work-card {
            background-color: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
            transition: all var(--transition-speed) ease;
        }
        .work-card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-md);
        }
        .work-card h4 {
            font-family: var(--font-serif);
            color: var(--color-secondary);
            margin-bottom: var(--spacing-sm);
        }
        blockquote {
            background-color: rgba(212, 175, 55, 0.1);
            border-left: 4px solid var(--color-secondary);
            padding: var(--spacing-lg);
            margin: var(--spacing-lg) 0;
            font-style: italic;
            font-size: 1.1rem;
        }
        blockquote cite {
            display: block;
            margin-top: var(--spacing-md);
            font-style: normal;
            font-weight: 500;
            color: var(--color-text-light);
            font-size: 0.9rem;
        }
        .legacy-table {
            overflow-x: auto;
            margin: var(--spacing-lg) 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--color-surface);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        th, td {
            padding: var(--spacing-md);
            text-align: left;
            border-bottom: 1px solid var(--color-border);
        }
        th {
            background-color: var(--color-primary);
            color: var(--color-surface);
            font-weight: 600;
            font-family: var(--font-serif);
        }
        tr:hover {
            background-color: rgba(212, 175, 55, 0.05);
        }
        .signature-container {
            text-align: center;
            margin: var(--spacing-xxl) 0;
        }
        .signature-container figcaption {
            margin-top: var(--spacing-sm);
            font-style: italic;
        }

        /* ==========================================================================
           CATÁLOGO DE OBRAS
           ========================================================================== */
        .page-header {
            text-align: center;
            margin-bottom: var(--spacing-xxl);
            padding-bottom: var(--spacing-lg);
            border-bottom: 2px solid var(--color-secondary);
        }
        .page-header h1 {
            font-family: var(--font-serif);
            font-size: 2.5rem;
            margin-bottom: var(--spacing-sm);
        }
        .catalog-info-section {
            margin-bottom: var(--spacing-xxl);
        }
        .catalog-systems {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }
        .system-card {
            background-color: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .system-card h3 {
            font-family: var(--font-serif);
            color: var(--color-secondary);
            margin-bottom: var(--spacing-md);
        }
        .system-card .example {
            background-color: rgba(212, 175, 55, 0.1);
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            font-family: 'Courier New', monospace;
            margin-top: var(--spacing-md);
        }
        .search-controls {
            background-color: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
        }
        .search-bar {
            position: relative;
            margin-bottom: var(--spacing-lg);
        }
        #search-input {
            width: 100%;
            padding: var(--spacing-md) var(--spacing-lg);
            font-size: 1rem;
            border: 2px solid var(--color-border);
            border-radius: var(--border-radius);
            transition: border-color var(--transition-speed) ease;
        }
        #search-input:focus {
            outline: none;
            border-color: var(--color-secondary);
        }
        .search-clear {
            position: absolute;
            right: var(--spacing-md);
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text-light);
            cursor: pointer;
            padding: var(--spacing-xs);
            transition: color var(--transition-speed) ease;
        }
        .search-clear:hover, .search-clear:focus {
            color: var(--color-primary);
        }
        .search-help {
            font-size: 0.875rem;
            color: var(--color-text-light);
            margin-top: var(--spacing-xs);
        }
        .filters-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .filter-group label {
            display: block;
            font-weight: 500;
            margin-bottom: var(--spacing-sm);
        }
        .filter-select {
            width: 100%;
            padding: var(--spacing-sm) var(--spacing-md);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            background-color: var(--color-surface);
            font-family: var(--font-sans);
            transition: border-color var(--transition-speed) ease;
        }
        .filter-select:focus {
            outline: none;
            border-color: var(--color-secondary);
        }
        .results-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            padding-top: var(--spacing-lg);
            border-top: 1px solid var(--color-border);
        }
        #results-count {
            font-weight: 500;
            color: var(--color-primary);
        }
        .sort-controls {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .sort-controls label {
            font-weight: 500;
        }
        .sort-controls select {
            padding: var(--spacing-xs) var(--spacing-md);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
        }
        .works-section {
            margin-top: var(--spacing-xl);
        }
        .loading-state {
            text-align: center;
            padding: var(--spacing-xxl);
            color: var(--color-text-light);
        }
        .works-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
            gap: var(--spacing-lg);
        }
        .work-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-speed) ease;
        }
        .work-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-secondary);
        }
        .work-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: var(--spacing-md);
        }
        .work-title {
            flex: 1;
        }
        .work-title h3 {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            margin-bottom: var(--spacing-xs);
        }
        .work-catalog {
            font-family: 'Courier New', monospace;
            color: var(--color-secondary);
            font-weight: 600;
        }
        .work-type {
            display: inline-block;
            background-color: var(--color-primary);
            color: var(--color-surface);
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            font-size: 0.875rem;
            font-weight: 500;
        }
        .work-details {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-md) 0;
        }
        .detail-item {
            display: flex;
            flex-direction: column;
        }
        .detail-label {
            font-size: 0.875rem;
            color: var(--color-text-light);
            font-weight: 500;
        }
        .detail-value {
            font-weight: 500;
            color: var(--color-primary);
        }
        .work-description {
            margin: var(--spacing-md) 0;
            font-size: 0.95rem;
        }
        .work-links {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }
        .work-links a {
            display: inline-flex;
            align-items: center;
            padding: var(--spacing-xs) var(--spacing-md);
            background-color: var(--color-primary);
            color: var(--color-surface);
            text-decoration: none;
            border-radius: var(--border-radius);
            font-size: 0.875rem;
            font-weight: 500;
            transition: background-color var(--transition-speed) ease;
        }
        .work-links a:hover, .work-links a:focus {
            background-color: var(--color-secondary);
            color: var(--color-primary);
            outline: none;
        }
        .btn-add-to-collection {
            background-color: var(--color-success) !important;
            border-color: var(--color-success) !important;
        }
        .btn-add-to-collection:hover {
            background-color: #228b55 !important;
        }

        /* Dificultad */
        .difficulty-badge {
            display: inline-block;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .difficulty-principiante { background-color: #90ee90; color: #004d00; }
        .difficulty-intermedio { background-color: #ffd700; color: #8b7500; }
        .difficulty-avanzado { background-color: #ffa500; color: #8b4500; }
        .difficulty-conservatorio { background-color: #ff6347; color: white; }
        .difficulty-virtuoso { background-color: #dc143c; color: white; }

        /* ==========================================================================
           GRABACIONES
           ========================================================================== */
        .featured-recordings {
            margin-bottom: var(--spacing-xxl);
        }
        .recordings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }
        .recording-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-speed) ease;
        }
        .recording-card:hover {
            box-shadow: var(--shadow-md);
        }
        .recording-info h3 {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            margin-bottom: var(--spacing-sm);
            color: var(--color-primary);
        }
        .recording-info .artist {
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: var(--spacing-xs);
        }
        .recording-info .label {
            font-size: 0.875rem;
            color: var(--color-text-light);
        }
        .recording-info .significance {
            margin: var(--spacing-md) 0;
            font-style: italic;
            font-size: 0.95rem;
        }
        .recordings-table-section {
            margin-top: var(--spacing-xxl);
        }
        .table-wrapper {
            overflow-x: auto;
            margin: var(--spacing-lg) 0;
        }
        .recordings-table {
            width: 100%;
            font-size: 0.875rem;
        }
        .table-note {
            font-size: 0.875rem;
            color: var(--color-text-light);
            font-style: italic;
            margin-top: var(--spacing-md);
        }

        /* ==========================================================================
           RECURSOS
           ========================================================================== */
        .resources-section {
            margin-bottom: var(--spacing-xxl);
        }
        .editions-grid, .analysis-grid, .biblio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
        }
        .edition-card, .analysis-card, .biblio-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-speed) ease;
        }
        .edition-card:hover, .analysis-card:hover, .biblio-item:hover {
            box-shadow: var(--shadow-md);
        }
        .edition-card h3, .analysis-card h3, .biblio-item h3 {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            margin-bottom: var(--spacing-sm);
            color: var(--color-primary);
        }
        .edition-card .editor, .biblio-item .author {
            font-weight: 600;
            color: var(--color-secondary);
        }
        .edition-card .features {
            list-style: none;
            margin: var(--spacing-md) 0;
        }
        .edition-card .features li {
            margin-bottom: var(--spacing-xs);
        }

        /* ==========================================================================
           COLECCIÓN DE ESTUDIO
           ========================================================================== */
        .collection-controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            padding: var(--spacing-lg);
            background-color: var(--color-surface);
            border-radius: var(--border-radius);
            border: 1px solid var(--color-border);
        }
        .collection-buttons {
            display: flex;
            gap: var(--spacing-sm);
        }
        .collection-item {
            position: relative;
        }
        .priority-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-right: var(--spacing-sm);
        }
        .priority-alta { background-color: #dc143c; color: white; }
        .priority-media { background-color: #ffa500; color: white; }
        .priority-baja { background-color: #90ee90; color: #004d00; }
        .progress-indicator {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: var(--spacing-xs);
        }
        .progress-0 { background-color: var(--color-border); }
        .progress-1 { background-color: #ffd700; }
        .progress-2 { background-color: #ffa500; }
        .progress-3 { background-color: var(--color-secondary); }
        .personal-notes {
            margin-top: var(--spacing-md);
            padding-top: var(--spacing-md);
            border-top: 1px dashed var(--color-border);
        }
        .personal-notes textarea {
            width: 100%;
            min-height: 80px;
            padding: var(--spacing-sm);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            font-family: var(--font-sans);
            resize: vertical;
        }
        .progress-bar-item {
            display: flex;
            align-items: center;
            margin-bottom: var(--spacing-md);
        }
        .progress-label {
            width: 120px;
            font-size: 0.875rem;
        }
        .progress-bar {
            flex: 1;
            height: 20px;
            background-color: var(--color-border);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background-color: var(--color-secondary);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            transition: width var(--transition-speed) ease;
        }
        .progress-value {
            padding: 0 var(--spacing-sm);
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 10000;
            align-items: center;
            justify-content: center;
        }
        .modal.active { display: flex; }
        .modal-container {
            background: var(--color-surface);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            max-width: 90%;
            max-height: 90%;
            overflow-y: auto;
            position: relative;
        }
        .modal-close {
            position: absolute;
            top: var(--spacing-md);
            right: var(--spacing-md);
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--color-text-light);
        }
        .form-group {
            margin-bottom: var(--spacing-md);
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: var(--spacing-xs);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: var(--spacing-sm);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            font-family: var(--font-sans);
        }
        .form-group textarea {
            resize: vertical;
        }
        .modal-footer {
            display: flex;
            justify-content: flex-end;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-lg);
        }

        /* ==========================================================================
           FOOTER
           ========================================================================== */
        .site-footer {
            background-color: var(--color-primary);
            color: var(--color-surface);
            padding: var(--spacing-xxl) 0 var(--spacing-lg);
            margin-top: var(--spacing-xxl);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-section h3 {
            font-family: var(--font-serif);
            font-size: 1.125rem;
            margin-bottom: var(--spacing-md);
            color: var(--color-secondary);
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: var(--spacing-xs);
        }
        .footer-section a {
            color: var(--color-surface);
            text-decoration: none;
            transition: color var(--transition-speed) ease;
        }
        .footer-section a:hover, .footer-section a:focus {
            color: var(--color-secondary);
            outline: none;
        }
        .external-links a {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .external-links a::after {
            content: '↗';
            font-size: 0.875rem;
        }
        .footer-bottom {
            padding-top: var(--spacing-lg);
            border-top: 1px solid var(--color-accent);
            text-align: center;
            font-size: 0.875rem;
            color: var(--color-accent);
        }

        /* ==========================================================================
           RESPONSIVE
           ========================================================================== */
        @media (max-width: 1024px) {
            .hero-section {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-content h1 {
                font-size: 2.5rem;
            }
            .image-float-right {
                float: none;
                margin: var(--spacing-lg) auto;
            }
        }
        @media (max-width: 768px) {
            .nav-container { flex-wrap: wrap; }
            .mobile-menu-toggle { display: block; }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--color-surface);
                flex-direction: column;
                padding: var(--spacing-lg);
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--color-border);
            }
            .nav-menu.active { display: flex; }
            .nav-item { width: 100%; }
            .nav-link { display: block; padding: var(--spacing-md); }
            .hero-content h1 { font-size: 2rem; }
            .works-grid { grid-template-columns: 1fr; }
            .results-info { flex-direction: column; align-items: flex-start; }
            .legacy-table { overflow-x: scroll; }
            table { font-size: 0.875rem; }
            th, td { padding: var(--spacing-sm); }
            .collection-controls { flex-direction: column; align-items: flex-start; }
            .collection-buttons { flex-wrap: wrap; }
        }
        @media (max-width: 480px) {
            :root {
                --spacing-lg: 0.75rem;
                --spacing-xl: 1.5rem;
            }
            .hero-content h1 { font-size: 1.75rem; }
            .page-header h1 { font-size: 1.75rem; }
            .search-controls, .work-item, .edition-card { padding: var(--spacing-md); }
        }

        /* ==========================================================================
           PRINT STYLES
           ========================================================================== */
        @media print {
            .site-header, .breadcrumbs, .mobile-menu-toggle, .search-controls, .cta-section, .site-footer, .collection-controls, .work-links button {
                display: none !important;
            }
            body { font-size: 12pt; line-height: 1.4; }
            .page { display: block !important; }
            .main-content { padding: 0; }
            .hero-section { grid-template-columns: 1fr; }
            .hero-image { display: none; }
            .work-item {
                break-inside: avoid;
                page-break-inside: avoid;
                border: 1px solid #ccc;
                margin-bottom: 0.5cm;
            }
            .legacy-table { overflow: visible; }
            table { font-size: 10pt; }
            th, td { padding: var(--spacing-xs); }
            a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
        }

        /* Notificaciones */
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 15px 20px;
            border-radius: var(--border-radius);
            color: white;
            font-weight: 500;
            z-index: 10001;
            box-shadow: var(--shadow-lg);
            animation: slideIn 0.3s ease;
        }
        @keyframes slideIn {
            from { transform: translateX(100%); }
            to { transform: translateX(0); }
        }
        .notification-success { background-color: var(--color-success); }
        .notification-error { background-color: var(--color-error); }
        .notification-info { background-color: var(--color-secondary); color: var(--color-primary); }