/* ============================================
   ESTILOS PARA PÁGINA DE DETALLE DEL PRODUCTO
   ============================================ */

.product-detail-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: white;
    border-radius: var(--border-radius-small);
    box-shadow: var(--shadow);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--absolute-zero);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.breadcrumb a:hover {
    color: var(--cetacean-blue);
    text-decoration: underline;
}

.breadcrumb .separator {
    color: var(--dark-gray);
    font-weight: 300;
}

.breadcrumb .current {
    color: var(--cetacean-blue);
    font-weight: 600;
}

/* ============================================
   CONTENIDO PRINCIPAL
   ============================================ */
.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 3rem;
}

/* ============================================
   GALERÍA DE IMÁGENES
   ============================================ */
.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.main-image-container {
    position: relative;
    width: 100%;
    height: 500px;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4f8 0%, #e0e8f0 100%);
    box-shadow: 0 8px 30px rgba(4, 17, 57, 0.1);
}

.main-product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.main-image-container:hover .main-product-image {
    transform: scale(1.05);
}

.zoom-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 50px;
    height: 50px;
    background: rgba(4, 17, 57, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.zoom-btn:hover {
    background: linear-gradient(135deg, var(--absolute-zero) 0%, #0158e8 100%);
    transform: scale(1.1);
}

.stock-alert {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: pulse 2s infinite;
}

.stock-alert.critical {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

/* Galería de miniaturas */
.thumbnail-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
}

.thumbnail-item {
    position: relative;
    width: 100%;
    height: 100px;
    border-radius: var(--border-radius-small);
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: var(--transition);
    background: #f0f4f8;
}

.thumbnail-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 17, 57, 0.3);
    opacity: 1;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.thumbnail-item.active::before,
.thumbnail-item:hover::before {
    opacity: 0;
}

.thumbnail-item.active {
    border-color: var(--absolute-zero);
    box-shadow: 0 0 20px rgba(1, 70, 199, 0.5);
}

.thumbnail-item:hover {
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   INFORMACIÓN DEL PRODUCTO
   ============================================ */
.product-info-detail {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.product-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--cetacean-blue);
    line-height: 1.3;
    margin: 0;
}

.product-code {
    color: var(--dark-gray);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-code i {
    color: var(--absolute-zero);
}

/* Meta información */
.product-meta-info {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
}

.meta-badge.category {
    background: linear-gradient(135deg, var(--gold-web) 0%, #c5dfe9 100%);
    color: var(--cetacean-blue);
}

.meta-badge.brand {
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f0f6 100%);
    color: var(--cetacean-blue);
}

.meta-badge.stock {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    color: white;
}

.meta-badge.stock.low {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

/* Sección de precio */
.price-section {
    background: linear-gradient(135deg, #f8fbfd 0%, var(--bg-color) 100%);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 5px solid var(--absolute-zero);
}

.product-price-large {
    font-size: 3rem;
    font-weight: 800;
    color: var(--absolute-zero);
    margin: 0;
    line-height: 1;
}

.price-note {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Descripción */
.product-description {
    padding: 1.5rem;
    background: #f8fbfd;
    border-radius: var(--border-radius-small);
    border-left: 4px solid var(--accent-color);
}

.product-description h3 {
    color: var(--cetacean-blue);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-description p {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1rem;
}

/* ============================================
   SECCIÓN DE COMPRA
   ============================================ */
.purchase-section {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    padding-top: 1.5rem;
    border-top: 2px solid #e0e8f0;
}

.quantity-control {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.quantity-control label {
    font-weight: 700;
    color: var(--cetacean-blue);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quantity-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 200px;
}

.qty-btn {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f0f6 100%);
    border: 2px solid var(--absolute-zero);
    color: var(--absolute-zero);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
}

.qty-btn:hover {
    background: linear-gradient(135deg, var(--absolute-zero) 0%, #0158e8 100%);
    color: white;
    transform: scale(1.1);
}

.quantity-input {
    flex: 1;
    height: 45px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    border: 2px solid #e0e8f0;
    border-radius: var(--border-radius-small);
    color: var(--cetacean-blue);
    background: white;
}

.quantity-input:focus {
    outline: none;
    border-color: var(--absolute-zero);
    box-shadow: 0 0 0 3px rgba(1, 70, 199, 0.1);
}

/* Botones de acción */
.btn-add-to-cart-detail {
    width: 100%;
    padding: 1.3rem;
    background: linear-gradient(135deg, var(--absolute-zero) 0%, #0158e8 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    box-shadow: 0 8px 25px rgba(1, 70, 199, 0.4);
}

.btn-add-to-cart-detail:hover:not(:disabled) {
    background: linear-gradient(135deg, #0158e8 0%, var(--absolute-zero) 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(1, 70, 199, 0.6);
}

.btn-add-to-cart-detail:disabled {
    background: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%);
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-continue-shopping {
    width: 100%;
    padding: 1rem;
    background: white;
    color: var(--absolute-zero);
    border: 2px solid var(--absolute-zero);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    text-decoration: none;
}

.btn-continue-shopping:hover {
    background: var(--absolute-zero);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   INFORMACIÓN ADICIONAL
   ============================================ */
.additional-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fbfd 0%, var(--bg-color) 100%);
    border-radius: var(--border-radius);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-item i {
    font-size: 2rem;
    color: var(--absolute-zero);
    flex-shrink: 0;
}

.info-item strong {
    color: var(--cetacean-blue);
    font-size: 0.95rem;
    display: block;
    margin-bottom: 0.3rem;
}

.info-item p {
    color: var(--dark-gray);
    font-size: 0.85rem;
    margin: 0;
}

/* ============================================
   PRODUCTOS RELACIONADOS
   ============================================ */
.related-products {
    margin-top: 4rem;
}

.related-products h2 {
    color: var(--cetacean-blue);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding-bottom: 1rem;
    border-bottom: 4px solid var(--absolute-zero);
}

.related-products h2::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 150px;
    height: 4px;
    background: var(--gold-web);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.related-product-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    border: 2px solid transparent;
}

.related-product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--absolute-zero);
}

.related-product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f4f8 0%, #e0e8f0 100%);
}

.related-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.related-product-card:hover .related-product-image img {
    transform: scale(1.1);
}

.related-product-info {
    padding: 1.2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.related-product-info h3 {
    color: var(--cetacean-blue);
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-brand {
    color: var(--dark-gray);
    font-size: 0.85rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.related-price {
    color: var(--absolute-zero);
    font-size: 1.5rem;
    font-weight: 800;
    margin: auto 0 0 0;
}

/* ============================================
   MODAL DE ZOOM
   ============================================ */
.image-zoom-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 17, 57, 0.95);
    backdrop-filter: blur(20px);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.image-zoom-modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

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

.image-zoom-modal img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.close-zoom {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: white;
    color: var(--cetacean-blue);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.close-zoom:hover {
    background: var(--absolute-zero);
    color: white;
    transform: rotate(90deg) scale(1.1);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets grandes (max-width: 1024px) */
@media screen and (max-width: 1024px) {
    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .main-image-container {
        height: 400px;
    }
}

/* Tablets (max-width: 768px) */
@media screen and (max-width: 768px) {
    .product-detail-container {
        padding: 1rem;
    }
    
    .product-detail-content {
        padding: 1.5rem;
    }
    
    .product-title {
        font-size: 1.8rem;
    }
    
    .product-price-large {
        font-size: 2.5rem;
    }
    
    .main-image-container {
        height: 350px;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .thumbnail-item {
        height: 80px;
    }
    
    .additional-info {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

/* Móviles (max-width: 480px) */
@media screen and (max-width: 480px) {
    .product-detail-container {
        padding: 0.8rem;
    }
    
    .product-detail-content {
        padding: 1rem;
        gap: 1.5rem;
    }
    
    .breadcrumb {
        padding: 0.8rem;
        font-size: 0.85rem;
    }
    
    .product-title {
        font-size: 1.5rem;
    }
    
    .product-price-large {
        font-size: 2rem;
    }
    
    .main-image-container {
        height: 300px;
    }
    
    .zoom-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .thumbnail-gallery {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    
    .thumbnail-item {
        height: 70px;
    }
    
    .quantity-input-group {
        max-width: 100%;
    }
    
    .btn-add-to-cart-detail {
        font-size: 1rem;
        padding: 1.1rem;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products h2 {
        font-size: 1.5rem;
    }
    
    .close-zoom {
        width: 50px;
        height: 50px;
        top: 20px;
        right: 20px;
        font-size: 1.5rem;
    }
}