/* === HERO SECTION === */
.hero-section {
    padding: clamp(6rem, 12vw, 8rem) 0 clamp(3rem, 6vw, 4rem);
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(239, 68, 68, 0.05) 0%, transparent 70%);
    border-bottom: 1px solid var(--border);
}

.page-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: clamp(0.75rem, 2vw, 1rem);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    padding: 0 1rem;
}

.page-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1rem;
    line-height: 1.6;
}

/* === FILTROS === */
.filters-section {
    padding: clamp(2rem, 5vw, 3rem) 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1.5vw, 1rem);
    justify-content: center;
    margin-bottom: clamp(1.5rem, 3vw, 2rem);
    padding: 0 1rem;
}

.filter-btn {
    padding: clamp(0.6rem, 1.5vw, 0.75rem) clamp(1rem, 2.5vw, 1.5rem);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: clamp(0.8rem, 1.8vw, 0.9rem);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.filter-btn:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--text-primary);
}

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

.search-box {
    max-width: 400px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

.search-box input {
    width: 100%;
    padding: clamp(0.75rem, 2vw, 1rem);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.1);
}

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

/* === CATÁLOGO DE ERRORES === */
.errors-catalog {
    padding: clamp(3rem, 6vw, 4rem) 0;
}

.category-section {
    margin-bottom: clamp(4rem, 8vw, 5rem);
    transition: opacity 0.3s ease;
}

.category-section.hidden {
    display: none;
}

.category-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: clamp(0.75rem, 2vw, 1rem);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: clamp(0.5rem, 2vw, 1rem);
    flex-wrap: wrap;
    padding: 0 1rem;
}

.category-icon {
    font-size: clamp(2rem, 4vw, 2.5rem);
}

.category-desc {
    font-size: clamp(1rem, 2.2vw, 1.1rem);
    color: var(--text-secondary);
    margin-bottom: clamp(2rem, 5vw, 3rem);
    max-width: 600px;
    line-height: 1.6;
    padding: 0 1rem;
}

.errors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: clamp(1rem, 2.5vw, 1.5rem);
    padding: 0 1rem;
}

.error-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: clamp(1.25rem, 3vw, 1.5rem);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
    overflow: hidden;
}

.error-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    transition: left 0.5s ease;
}

.error-card:hover::before {
    left: 100%;
}

.error-card:hover {
    border-color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.error-card .error-number {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--accent);
    display: block;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.error-card .error-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: clamp(1rem, 2.2vw, 1.1rem);
}

.error-card .error-desc {
    font-size: clamp(0.85rem, 1.8vw, 0.9rem);
    color: var(--text-secondary);
    line-height: 1.4;
}

/* === ESTADOS ESPECIALES === */
.no-results {
    text-align: center;
    padding: clamp(3rem, 6vw, 4rem) 1rem;
    color: var(--text-secondary);
}

.no-results h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    margin-bottom: clamp(0.75rem, 2vw, 1rem);
    color: var(--text-primary);
}

.no-results p {
    font-size: clamp(1rem, 2.2vw, 1.1rem);
    line-height: 1.6;
}

/* === RESPONSIVE BREAKPOINTS === */

/* Tablets y pantallas medianas */
@media (max-width: 1024px) {
    .errors-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .category-title {
        justify-content: center;
        text-align: center;
    }
    
    .category-desc {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }
}

/* Tablets pequeñas */
@media (max-width: 768px) {
    .hero-section {
        padding: 6rem 0 3rem;
    }
    
    .page-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .page-description {
        font-size: 1.1rem;
    }
    
    .filters-section {
        padding: 2rem 0;
    }
    
    .filters {
        gap: 0.75rem;
        justify-content: flex-start;
        overflow-x: auto;
        padding: 0 1rem 0.5rem;
        scrollbar-width: thin;
        scrollbar-color: var(--accent) var(--bg-primary);
    }
    
    .filters::-webkit-scrollbar {
        height: 4px;
    }
    
    .filters::-webkit-scrollbar-track {
        background: var(--bg-primary);
    }
    
    .filters::-webkit-scrollbar-thumb {
        background: var(--accent);
        border-radius: 2px;
    }
    
    .filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .category-title {
        font-size: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .category-icon {
        order: -1;
    }
    
    .category-desc {
        font-size: 1rem;
        margin-bottom: 2rem;
        text-align: center;
    }
    
    .errors-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1rem;
    }
    
    .error-card {
        padding: 1.25rem;
    }
    
    .error-card .error-number {
        font-size: 3rem;
    }
    
    .errors-catalog {
        padding: 3rem 0;
    }
    
    .category-section {
        margin-bottom: 4rem;
    }
    
    .search-box {
        max-width: 100%;
        padding: 0 1rem;
    }
}

/* Móviles */
@media (max-width: 480px) {
    .hero-section {
        padding: 5rem 0 2rem;
    }
    
    .page-title {
        padding: 0 0.75rem;
    }
    
    .page-description {
        padding: 0 0.75rem;
        font-size: 1rem;
    }
    
    .filters-section {
        padding: 1.5rem 0;
    }
    
    .filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding: 0 0.75rem 0.5rem;
        gap: 0.5rem;
    }
    
    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .search-box {
        padding: 0 0.75rem;
    }
    
    .errors-catalog {
        padding: 2rem 0;
    }
    
    .category-section {
        margin-bottom: 3rem;
    }
    
    .category-title {
        padding: 0 0.75rem;
        font-size: 1.25rem;
    }
    
    .category-icon {
        font-size: 1.75rem;
    }
    
    .category-desc {
        padding: 0 0.75rem;
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .errors-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        padding: 0 0.75rem;
    }
    
    .error-card {
        padding: 1rem;
    }
    
    .error-card .error-number {
        font-size: 2.75rem;
    }
    
    .error-card .error-name {
        font-size: 1rem;
    }
    
    .error-card .error-desc {
        font-size: 0.85rem;
    }
    
    .error-card:hover {
        transform: none;
    }
    
    .no-results {
        padding: 2rem 0.75rem;
    }
    
    .no-results h3 {
        font-size: 1.1rem;
    }
    
    .no-results p {
        font-size: 0.95rem;
    }
}

/* Móviles muy pequeños */
@media (max-width: 320px) {
    .hero-section {
        padding: 4rem 0 1.5rem;
    }
    
    .page-title {
        padding: 0 0.5rem;
        font-size: 1.75rem;
    }
    
    .page-description {
        padding: 0 0.5rem;
        font-size: 0.9rem;
    }
    
    .filters-section {
        padding: 1rem 0;
    }
    
    .filters {
        padding: 0 0.5rem 0.5rem;
        gap: 0.25rem;
    }
    
    .filter-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.7rem;
    }
    
    .search-box {
        padding: 0 0.5rem;
    }
    
    .search-box input {
        padding: 0.6rem;
        font-size: 0.85rem;
    }
    
    .errors-catalog {
        padding: 1.5rem 0;
    }
    
    .category-section {
        margin-bottom: 2.5rem;
    }
    
    .category-title {
        padding: 0 0.5rem;
        font-size: 1.1rem;
    }
    
    .category-icon {
        font-size: 1.5rem;
    }
    
    .category-desc {
        padding: 0 0.5rem;
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .errors-grid {
        padding: 0 0.5rem;
        gap: 0.5rem;
    }
    
    .error-card {
        padding: 0.75rem;
    }
    
    .error-card .error-number {
        font-size: 2.5rem;
    }
    
    .error-card .error-name {
        font-size: 0.9rem;
    }
    
    .error-card .error-desc {
        font-size: 0.8rem;
    }
    
    .no-results {
        padding: 1.5rem 0.5rem;
    }
    
    .no-results h3 {
        font-size: 1rem;
    }
    
    .no-results p {
        font-size: 0.85rem;
    }
}

/* === MEJORAS PARA ACCESIBILIDAD === */
@media (prefers-reduced-motion: reduce) {
    .error-card,
    .error-card::before,
    .filter-btn,
    .category-section {
        transition: none;
    }
    
    .error-card:hover {
        transform: none;
    }
}

/* Mejora del scroll horizontal en filtros */
.filters {
    -webkit-overflow-scrolling: touch;
}

/* Mejora de focus para accesibilidad */
.filter-btn:focus,
.search-box input:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.error-card:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}