/* ===== PRODUCT DETAILS PAGE ===== */
.product-details {
    padding: 60px 0 80px;
}

.product-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

/* Product Gallery */
.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-image {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background-color: var(--light);
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-image img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--secondary);
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 14px;
    z-index: 1;
}

.thumbnail-gallery {
    display: flex;
    gap: 15px;
}

.thumbnail {
    width: 100px;
    height: 100px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    background-color: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumbnail.active,
.thumbnail:hover {
    border-color: var(--primary);
}

.thumbnail img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

/* Product Info */
.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stars {
    color: #f1c40f;
    font-size: 16px;
}

.rating-value {
    font-weight: 700;
    color: var(--dark);
}

.reviews-count {
    color: var(--gray);
    font-size: 14px;
}

.product-sku {
    color: var(--gray);
    font-size: 14px;
}

.product-description {
    margin-bottom: 30px;
}

.product-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--dark);
}

.product-features {
    margin-bottom: 30px;
    padding: 25px;
    background-color: var(--light);
    border-radius: var(--radius);
}

.product-features h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.product-features ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.product-features i {
    color: var(--secondary);
    font-size: 14px;
}

.product-specs {
    margin-bottom: 30px;
}

.product-specs h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.spec {
    display: flex;
    justify-content: space-between;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-gray);
}

.spec-label {
    color: var(--gray);
    font-size: 14px;
}

.spec-value {
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
}

/* Product Variants */
.product-variants {
    margin-bottom: 30px;
}

.product-variants h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.variant-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.variant-option {
    padding: 15px 25px;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    min-width: 120px;
}

.variant-option.active,
.variant-option:hover {
    border-color: var(--primary);
    background-color: var(--light);
}

.variant-label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--dark);
}

.variant-price {
    display: block;
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Product Actions */
.product-actions {
    background-color: var(--light);
    padding: 30px;
    border-radius: var(--radius);
    margin-bottom: 30px;
}

.price-section {
    display: flex;
    align-items: baseline;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.current-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.old-price {
    font-size: 1.5rem;
    color: var(--gray);
    text-decoration: line-through;
}

.discount {
    padding: 5px 15px;
    background-color: var(--secondary);
    color: white;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
}

.action-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.quantity-selector {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
}

.quantity-btn {
    width: 45px;
    height: 45px;
    border: none;
    background-color: white;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.quantity-btn:hover {
    background-color: var(--light);
}

.quantity-input {
    width: 60px;
    height: 45px;
    border: none;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.add-to-cart {
    flex: 1;
    min-width: 200px;
}

.add-to-wishlist {
    width: 60px;
    padding: 0;
    aspect-ratio: 1;
}

.product-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background-color: white;
    border-radius: var(--radius);
    border: 1px solid var(--light-gray);
}

.meta-item i {
    color: var(--primary);
    font-size: 18px;
}

.meta-item span {
    font-size: 14px;
    color: var(--dark);
}

/* Product Tabs */
.product-tabs {
    margin-bottom: 80px;
}

.tabs-header {
    display: flex;
    border-bottom: 2px solid var(--light-gray);
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 15px 30px;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.tab-btn.active,
.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* Description Tab */
.description-content h3,
.specifications-content h3,
.reviews-content h3,
.faq-content h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.description-content h4 {
    margin: 25px 0 15px;
    font-size: 1.2rem;
    color: var(--primary);
}

.description-content ul {
    list-style: none;
    padding-left: 0;
}

.description-content li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.description-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
}

/* Specifications Tab */
.specs-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.specs-table th,
.specs-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.specs-table th {
    background-color: var(--light);
    font-weight: 600;
    color: var(--dark);
    width: 30%;
}

.specs-table tr:last-child th,
.specs-table tr:last-child td {
    border-bottom: none;
}

/* Reviews Tab */
.overall-rating {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    margin-bottom: 40px;
    padding: 30px;
    background-color: var(--light);
    border-radius: var(--radius);
}

.rating-summary {
    text-align: center;
}

.average-rating {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 10px;
}

.rating-summary .stars {
    font-size: 20px;
    margin-bottom: 10px;
}

.total-reviews {
    color: var(--gray);
    font-size: 14px;
}

.rating-bars {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rating-bar {
    display: flex;
    align-items: center;
    gap: 15px;
}

.rating-bar span:first-child {
    width: 100px;
    font-size: 14px;
    color: var(--gray);
}

.rating-bar span:last-child {
    width: 40px;
    text-align: right;
    font-weight: 600;
    color: var(--dark);
}

.bar {
    flex: 1;
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.fill {
    height: 100%;
    background-color: #f1c40f;
    border-radius: 4px;
}

.review-form {
    background-color: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.review-form h4 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.review-form .form-group {
    margin-bottom: 20px;
}

.review-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.rating-input {
    display: flex;
    gap: 5px;
    font-size: 24px;
    color: #e0e0e0;
    cursor: pointer;
}

.rating-input i.active {
    color: #f1c40f;
}

.review-form input,
.review-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
}

.review-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* FAQ Tab */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--light-gray);
}

.faq-question {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--light);
}

.faq-question h4 {
    margin: 0;
    font-size: 1.1rem;
    flex: 1;
}

.faq-question i {
    color: var(--primary);
    transition: transform 0.3s ease;
    margin-left: 20px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--gray);
    line-height: 1.7;
    margin: 0;
}

/* Related Products */
.related-products {
    margin-top: 80px;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.related-product-card {
    background-color: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.related-product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.related-product-image {
    height: 200px;
    background-color: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.related-product-image img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.related-product-info {
    padding: 20px;
    text-align: center;
}

.related-product-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    height: 2.6em;
    overflow: hidden;
}

.related-product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
}

.related-product-info .btn {
    width: 100%;
}

/* Responsive */
@media (max-width: 1200px) {
    .product-details-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .main-image {
        height: 400px;
    }
    
    .overall-rating {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .product-features ul {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .variant-options {
        flex-direction: column;
    }
    
    .variant-option {
        min-width: 100%;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .quantity-selector {
        width: 100%;
        justify-content: center;
    }
    
    .add-to-cart,
    .add-to-wishlist {
        width: 100%;
    }
    
    .product-meta {
        grid-template-columns: 1fr;
    }
    
    .tabs-header {
        flex-direction: column;
    }
    
    .tab-btn {
        padding: 15px;
        text-align: left;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .tab-btn.active::after {
        display: none;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .main-image {
        height: 300px;
    }
    
    .thumbnail-gallery {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .thumbnail {
        width: 80px;
        height: 80px;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .review-form {
        padding: 20px;
    }

    .product-header,
    .price-section,
    .product-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .product-actions,
    .product-info,
    .tab-content,
    .review-form {
        padding-left: 0;
        padding-right: 0;
    }

    .thumbnail {
        width: 68px;
        height: 68px;
    }
}