.breadcrumb {
    background: var(--white);
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.breadcrumb ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    color: var(--gray-300);
    margin-right: 0.5rem;
}

.breadcrumb li:last-child {
    color: var(--primary);
    font-weight: 500;
}

.breadcrumb a {
    color: var(--gray-500);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.product-page {
    padding: 1rem 0 3rem;
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.product-gallery {
    position: relative;
}

.main-image-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
}

.main-product-image {
    width: 100%;
    height: 450px;
    object-fit: contain;
    background: var(--white);
    padding: 1rem;
    transition: transform var(--transition);
}

.main-image-container:hover .main-product-image {
    transform: scale(1.02);
}

.discount-badge, .used-badge {
    position: absolute;
    top: 1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 700;
    z-index: 10;
}

.discount-badge {
    right: 1rem;
    background: var(--primary);
    color: var(--white);
}

.used-badge {
    left: 1rem;
    background: var(--warning);
    color: var(--white);
}

.thumbnail-gallery {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.thumbnail-wrapper {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    border: 3px solid transparent;
    transition: all var(--transition);
    flex-shrink: 0;
}

.thumbnail-wrapper:hover {
    border-color: var(--primary-light);
}

.thumbnail-wrapper.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(239, 64, 86, 0.2);
}

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

.product-info-detail {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.product-title {
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.4;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.meta-item svg {
    width: 1rem;
    height: 1rem;
    color: var(--gray-400);
}

.meta-item a {
    color: var(--gray-500);
}

.meta-item a:hover {
    color: var(--primary);
}

.product-rating-detail {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.product-rating-detail .stars {
    display: flex;
    gap: 0.125rem;
}

.star-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--gray-300);
}

.star-icon.active {
    color: #f59e0b;
    fill: #f59e0b;
}

.rating-text {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.product-price-detail {
    background: linear-gradient(135deg, #fef2f2 0%, #fff5f5 100%);
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(239, 64, 86, 0.1);
}

.product-price-detail .original-price {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.product-price-detail .original-price .price-value {
    font-size: 1rem;
    color: var(--gray-400);
    text-decoration: line-through;
}

.product-price-detail .current-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
}

.discount-timer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--primary);
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: rgba(239, 64, 86, 0.1);
    border-radius: var(--radius-sm);
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.product-features .feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
}

.product-features .feature svg {
    width: 1.125rem;
    height: 1.125rem;
}

.product-features .feature.in-stock {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    border-color: rgba(16, 185, 129, 0.2);
}

.product-features .feature.out-of-stock {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border-color: rgba(239, 68, 68, 0.2);
}

.product-actions-detail {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.quantity-selector label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
}

.quantity-controls {
    display: flex;
    align-items: center;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color var(--transition);
}

.quantity-controls:focus-within {
    border-color: var(--primary);
}

.quantity-controls button {
    width: 2.75rem;
    height: 2.75rem;
    background: var(--gray-50);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--gray-600);
}

.quantity-controls button:hover {
    background: var(--primary);
    color: var(--white);
}

.quantity-controls button svg {
    width: 1rem;
    height: 1rem;
}

.quantity-controls input {
    width: 3.5rem;
    height: 2.75rem;
    text-align: center;
    border: none;
    border-left: 1px solid var(--gray-200);
    border-right: 1px solid var(--gray-200);
    font-family: inherit;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
}

.quantity-controls input::-webkit-outer-spin-button,
.quantity-controls input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.action-buttons-group {
    display: flex;
    gap: 0.75rem;
    flex: 1;
}

.add-to-cart-main {
    flex: 1;
    padding: 1rem 2rem;
    font-size: 1.0625rem;
    font-weight: 600;
    gap: 0.625rem;
}

.add-to-cart-main svg {
    width: 1.375rem;
    height: 1.375rem;
}

.wishlist-btn-detail {
    width: 3.5rem;
    height: 3.5rem;
    min-width: 3.5rem;
    padding: 0;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.wishlist-btn-detail:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(239, 64, 86, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 64, 86, 0.2);
}

.wishlist-btn-detail.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(239, 64, 86, 0.3);
}

.wishlist-btn-detail.active svg {
    fill: currentColor;
}

.wishlist-btn-detail svg {
    width: 1.375rem;
    height: 1.375rem;
    transition: transform var(--transition);
}

.wishlist-btn-detail:hover svg {
    transform: scale(1.15);
}

.out-of-stock-message {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius);
    color: #dc2626;
    font-weight: 600;
    font-size: 1rem;
}

.out-of-stock-message svg {
    width: 1.5rem;
    height: 1.5rem;
}

.product-short-desc {
    padding: 1rem 1.25rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    border-right: 4px solid var(--primary);
}

.product-short-desc p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin: 0;
}

.product-tabs {
    margin-top: 2.5rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.tabs-header {
    display: flex;
    border-bottom: 2px solid var(--gray-100);
    background: var(--gray-50);
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.tabs-header::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    padding: 1.25rem 2rem;
    background: none;
    border: none;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary);
    background: var(--white);
}

.tab-btn.active {
    color: var(--primary);
    background: var(--white);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
}

.tabs-content {
    padding: 2rem;
    overflow-x: hidden;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.tabs-content::-webkit-scrollbar {
    display: none;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
    overflow: visible;
}

.tab-content.active {
    display: block;
}

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

.description-content {
    font-size: 0.9375rem;
    line-height: 2;
    color: var(--gray-600);
}

.specs-content {
    overflow: visible;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--gray-100);
}

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

.specs-table th,
.specs-table td {
    padding: 1rem 1.25rem;
    text-align: right;
}

.specs-table th {
    background: var(--gray-50);
    width: 35%;
    font-weight: 600;
    color: var(--gray-700);
}

.specs-table td {
    color: var(--gray-600);
}

.reviews-summary {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.rating-overview {
    text-align: center;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.overall-rating {
    margin-bottom: 1rem;
}

.rating-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
}

.rating-stars {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin: 0.75rem 0;
}

.total-reviews {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

.rating-bars {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.rating-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.rating-label {
    width: 1.5rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.rating-bar .bar {
    flex: 1;
    height: 0.5rem;
    background: var(--gray-200);
    border-radius: 9999px;
    overflow: hidden;
}

.rating-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
    border-radius: 9999px;
    transition: width 0.5s ease;
}

.rating-bar .count {
    width: 2rem;
    font-size: 0.875rem;
    color: var(--gray-400);
    text-align: left;
}

.review-form-container {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.review-form-container h3 {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: var(--gray-800);
}

.review-item {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.review-item:last-child {
    border-bottom: none;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.reviewer-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.reviewer-avatar svg {
    width: 1.25rem;
    height: 1.25rem;
}

.reviewer-name {
    font-weight: 600;
    color: var(--gray-800);
}

.review-date {
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.review-rating {
    display: flex;
    gap: 0.125rem;
}

.review-title-text {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.review-content {
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.review-pros {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: #059669;
}

.review-cons {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #dc2626;
}

.no-reviews {
    text-align: center;
    padding: 2rem;
    color: var(--gray-400);
}

.login-to-review {
    text-align: center;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--radius);
}

.login-to-review a {
    color: var(--primary);
    font-weight: 600;
}

.related-products {
    margin-top: 3rem;
}

.related-products h2 {
    font-size: 1.375rem;
    margin-bottom: 1.5rem;
    color: var(--gray-800);
}

.rating-input-interactive {
    display: flex;
    gap: 0.25rem;
    direction: ltr;
}

.rating-input-interactive .rating-star {
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0.25rem;
}

.rating-input-interactive .rating-star svg {
    width: 2rem;
    height: 2rem;
    fill: var(--gray-200);
    stroke: var(--gray-300);
    transition: all var(--transition-fast);
}

.rating-input-interactive .rating-star.hover svg,
.rating-input-interactive .rating-star.active svg {
    fill: #fbbf24;
    stroke: #f59e0b;
}

@media (max-width: 992px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1.5rem;
    }
    
    .main-product-image {
        height: 350px;
    }
}

@media (max-width: 768px) {
    .product-title {
        font-size: 1.375rem;
    }
    
    .product-price-detail .current-price {
        font-size: 1.5rem;
    }
    
    .product-actions-detail {
        flex-direction: column;
    }
    
    .action-buttons-group {
        width: 100%;
    }
    
    .add-to-cart-main {
        width: 100%;
    }
    
    .tabs-header {
        overflow-x: auto;
    }
    
    .tab-btn {
        padding: 1rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .reviews-summary {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .rating-overview {
        padding: 1rem;
    }
    
    .rating-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .product-detail {
        padding: 1rem;
    }
    
    .main-product-image {
        height: 280px;
    }
    
    .thumbnail-wrapper {
        width: 60px;
        height: 60px;
    }
    
    .product-meta {
        gap: 0.75rem;
    }
    
    .meta-item {
        font-size: 0.8125rem;
    }
    
    .tabs-content {
        padding: 1.25rem;
    }
}