/**
 * Estilos de Páginas de Productos
 * Optics Sterling LLC
 * 
 * ETAPA 2: Estilos completos para listado de productos
 */

/* ============================================
   PÁGINA DE PRODUCTOS (Listado)
   ============================================ */
.products-page {
    padding-top: 120px;
    padding-bottom: var(--spacing-3xl);
    min-height: 70vh;
}

.products-page-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.products-page-header .section-tag {
    color: var(--color-secondary);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.75rem;
}

.products-page-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-900);
}

.products-page-header p {
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.0625rem;
}

/* ============================================
   FILTROS
   ============================================ */
.products-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-radius: var(--border-radius-lg);
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 180px;
}

.filter-group label {
    font-weight: var(--font-weight-medium);
    font-size: 0.8125rem;
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label i {
    color: var(--color-secondary);
}

.filter-group select,
.filter-group input {
    padding: 0.625rem 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius-md);
    background: var(--color-white);
    font-size: 0.875rem;
    color: var(--color-gray-700);
    transition: var(--transition-normal);
    width: 100%;
    font-family: var(--font-primary);
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(26, 35, 126, 0.08);
}

.search-form {
    display: flex;
    gap: 0.5rem;
    width: 100%;
}

.search-form input {
    flex: 1;
}

.search-btn {
    padding: 0.625rem 1.25rem;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
}

.search-btn:hover {
    background: var(--color-primary-dark);
}

/* ============================================
   RESULTADOS
   ============================================ */
.products-results {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.products-count {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray-500);
    font-size: 0.9375rem;
}

.products-count i {
    color: var(--color-secondary);
}

/* ============================================
   GRID DE PRODUCTOS
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

/* Badge de producto */
.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.6875rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

/* Imagen */
.product-image {
    position: relative;
    padding-top: 75%;
    background: var(--color-gray-100);
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

/* Acciones al hover */
.product-actions {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
    gap: var(--spacing-sm);
}

.product-card:hover .product-actions {
    opacity: 1;
}

.btn-view {
    padding: 0.75rem 1.5rem;
    background: var(--color-white);
    color: var(--color-gray-900);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    transition: var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-view:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.05);
}

.btn-view i {
    font-size: 0.875rem;
}

/* Información del producto */
.product-info {
    padding: var(--spacing-md);
}

.product-category {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-secondary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.product-info h3 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: 0.25rem;
}

.product-description-short {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    min-height: 2.5rem;
}

.product-price {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.btn-add {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--border-radius-sm);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    transition: var(--transition-normal);
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.btn-add:hover {
    background: var(--color-secondary-dark);
    color: var(--color-white);
    transform: translateX(4px);
}

.btn-add i {
    transition: var(--transition-normal);
}

.btn-add:hover i {
    transform: translateX(4px);
}

/* ============================================
   PAGINACIÓN
   ============================================ */
.products-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.page-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--color-gray-600);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    text-decoration: none;
    border: 2px solid transparent;
}

.page-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.page-link.prev,
.page-link.next {
    background: var(--color-gray-50);
}

.page-link.prev:hover,
.page-link.next:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.page-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.page-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-gray-600);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    text-decoration: none;
    border: 2px solid transparent;
}

.page-number:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.page-number.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* ============================================
   ESTADO VACÍO
   ============================================ */
.products-empty {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: var(--color-gray-50);
    border-radius: var(--border-radius-lg);
}

.products-empty i {
    font-size: 3rem;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-md);
}

.products-empty h3 {
    font-size: 1.5rem;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.products-empty p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991px) {
    .products-page {
        padding-top: 100px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .products-filters {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .filter-group select,
    .filter-group input {
        width: 100%;
    }
    
    .search-form {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .products-page-header h1 {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .product-info {
        padding: var(--spacing-sm);
    }
    
    .product-info h3 {
        font-size: 0.9375rem;
    }
    
    .product-description-short {
        font-size: 0.75rem;
        min-height: 2rem;
    }
    
    .product-price {
        font-size: 1.0625rem;
    }
    
    .btn-add {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .btn-view {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
    }
    
    .products-pagination {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .page-number {
        width: 36px;
        height: 36px;
        font-size: 0.8125rem;
    }
    
    .page-link {
        font-size: 0.8125rem;
        padding: 0.375rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .products-page {
        padding-top: 90px;
        padding-bottom: var(--spacing-xl);
    }
    
    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }
    
    .product-badge {
        font-size: 0.6rem;
        padding: 0.125rem 0.5rem;
        top: 0.5rem;
        left: 0.5rem;
    }
    
    .product-info h3 {
        font-size: 0.8125rem;
    }
    
    .product-price {
        font-size: 0.9375rem;
    }
    
    .btn-add {
        font-size: 0.6875rem;
        padding: 0.25rem 0.625rem;
    }
    
    .product-description-short {
        display: none;
    }
    
    .products-filters {
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
    }
    
    .filter-group label {
        font-size: 0.75rem;
    }
    
    .filter-group select,
    .filter-group input {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
}