/* ========================================
   Product Detail Page Styles
   Professional Minimalist Design
   ======================================== */

/* Breadcrumb */
.breadcrumb {
    padding: 5.5rem 0 1rem;
    background-color: var(--bg-secondary);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    flex-wrap: wrap;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    color: var(--text-secondary);
}

.breadcrumb-list a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.breadcrumb-list .current {
    color: var(--text);
    font-weight: 500;
}

/* Product Detail Main */
.product-detail {
    padding: 2rem 0 4rem;
    background-color: var(--bg-secondary);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

/* Product Gallery */
.product-gallery {
    position: sticky;
    top: 90px;
}

.gallery-main {
    position: relative;
    background-color: var(--bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
}

.gallery-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--bg);
    background-color: var(--primary);
    border-radius: var(--radius);
    z-index: 10;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.gallery-image {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.gallery-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius);
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background-color: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: all 0.2s;
    z-index: 10;
}

.gallery-nav:hover {
    background-color: var(--primary);
    color: var(--bg);
    border-color: var(--primary);
}

.gallery-nav.prev {
    left: 1rem;
}

.gallery-nav.next {
    right: 1rem;
}

.gallery-zoom {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background-color: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    transition: all 0.2s;
}

.gallery-zoom:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--bg);
}

.gallery-thumbs {
    display: flex;
    gap: 0.75rem;
}

.thumb {
    flex: 1;
    height: 80px;
    background-color: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    overflow: hidden;
    padding: 0.25rem;
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: calc(var(--radius) - 2px);
}

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

.thumb.active {
    border-color: var(--primary);
}

/* Product Info Detail */
.product-info-detail {
    padding: 1rem 0;
}

.product-category-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.product-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--text);
}

.product-rating-detail {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.product-rating-detail .stars {
    display: flex;
    gap: 2px;
}

.rating-value {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

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

.rating-link {
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 500;
    transition: opacity 0.2s;
}

.rating-link:hover {
    opacity: 0.8;
}

.product-price-detail {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.product-price-detail .current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
}

.product-price-detail .original-price {
    font-size: 1.25rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

.discount-badge {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--bg);
    background-color: #ef4444;
    border-radius: var(--radius);
}

.product-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* Product Features */
.product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
}

.feature-icon {
    color: var(--accent);
    flex-shrink: 0;
}

/* Product Options */
.product-option {
    margin-bottom: 1.5rem;
}

.product-option label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.product-option label span {
    font-weight: 400;
    color: var(--text-secondary);
}

/* Color Options */
.color-options {
    display: flex;
    gap: 0.75rem;
}

.color-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.color-btn:hover {
    transform: scale(1.1);
}

.color-btn.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.2);
}

/* Quantity Selector */
.quantity-selector {
    display: inline-flex;
    align-items: center;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    margin-right: 1rem;
}

.quantity-selector .qty-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text);
    transition: all 0.2s;
}

.quantity-selector .qty-btn:hover {
    color: var(--accent);
}

.quantity-selector input {
    width: 50px;
    height: 40px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

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

.stock-info {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #10b981;
    font-weight: 500;
}

.stock-info svg {
    color: #10b981;
}

/* Product Actions Detail */
.product-actions-detail {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.add-to-cart-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.btn-icon {
    width: 52px;
    height: 52px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wishlist-btn-main.active {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #ef4444;
}

/* Delivery Info */
.delivery-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.delivery-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.delivery-icon {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.delivery-item div {
    display: flex;
    flex-direction: column;
}

.delivery-item strong {
    font-size: 0.938rem;
    font-weight: 600;
    color: var(--text);
}

.delivery-item span {
    font-size: 0.813rem;
    color: var(--text-secondary);
}

/* Product Share */
.product-share {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.product-share > span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.share-btn {
    width: 36px;
    height: 36px;
    background-color: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.share-btn:hover {
    background-color: var(--primary);
    color: var(--bg);
    transform: scale(1.1);
}

/* ========================================
   Product Tabs
   ======================================== */
.product-tabs {
    background-color: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    margin-bottom: 4rem;
}

.tabs-header {
    display: flex;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
}

.tab-btn {
    padding: 1.25rem 2rem;
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tabs-content {
    padding: 2rem;
}

.tab-panel {
    display: none;
}

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

.tab-panel h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

.tab-panel h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem;
    color: var(--text);
}

.tab-panel p {
    font-size: 0.938rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tab-panel ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.tab-panel li {
    font-size: 0.938rem;
    color: var(--text-secondary);
    line-height: 1.8;
    list-style: disc;
}

.tab-panel a {
    color: var(--accent);
}

.tab-panel a:hover {
    opacity: 0.8;
}

/* Specifications Table */
.specs-table {
    width: 100%;
    border-collapse: collapse;
}

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

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

.specs-table th,
.specs-table td {
    padding: 1rem;
    text-align: left;
    font-size: 0.938rem;
}

.specs-table th {
    width: 40%;
    font-weight: 500;
    color: var(--text);
    background-color: var(--bg-secondary);
}

.specs-table td {
    color: var(--text-secondary);
}

/* Reviews */
.reviews-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 2rem;
    align-items: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

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

.rating-big {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
}

.rating-stars-display {
    display: flex;
    justify-content: center;
    gap: 2px;
    margin: 0.5rem 0;
}

.reviews-summary p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

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

.rating-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.813rem;
}

.rating-bar span:first-child {
    width: 20px;
    color: var(--text-secondary);
}

.rating-bar .bar {
    flex: 1;
    height: 8px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    overflow: hidden;
}

.rating-bar .fill {
    height: 100%;
    background-color: #f59e0b;
    border-radius: var(--radius);
}

.rating-bar span:last-child {
    width: 30px;
    text-align: right;
    color: var(--text-secondary);
}

/* Review Items */
.reviews-list {
    margin-bottom: 2rem;
}

.review-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

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

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

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

.reviewer-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    color: var(--bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
}

.reviewer-info strong {
    display: block;
    font-size: 0.938rem;
    color: var(--text);
}

.verified {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: #10b981;
}

.review-meta {
    text-align: right;
}

.review-rating {
    display: flex;
    gap: 2px;
    margin-bottom: 0.25rem;
    justify-content: flex-end;
}

.review-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

.review-text {
    font-size: 0.938rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.review-helpful {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.813rem;
}

.review-helpful > span {
    color: var(--text-secondary);
}

.review-helpful button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.813rem;
    color: var(--text);
    background-color: var(--bg-secondary);
    border-radius: var(--radius);
    transition: all 0.2s;
}

.review-helpful button:hover {
    background-color: var(--border);
}

.load-more-reviews {
    display: block;
    margin: 0 auto;
}

/* Shipping Info Tab */
.shipping-options-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.shipping-option-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.shipping-icon-big {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.shipping-option-item h4 {
    margin: 0 0 0.25rem;
    font-size: 1rem;
    color: var(--text);
}

.shipping-option-item p {
    margin: 0;
    font-size: 0.875rem;
}

.shipping-option-item .price {
    color: var(--accent);
    font-weight: 600;
    margin-top: 0.5rem;
}

/* Related Products */
.related-products {
    margin-top: 4rem;
}

.related-products h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-gallery {
        position: static;
    }

    .reviews-header {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .reviews-header .btn {
        justify-self: center;
    }

    .rating-stars-display {
        justify-content: center;
    }

    .shipping-options-info {
        grid-template-columns: 1fr;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-detail {
        padding: 1.5rem 0 3rem;
    }

    .product-title {
        font-size: 1.5rem;
    }

    .product-price-detail .current-price {
        font-size: 1.5rem;
    }

    .product-features {
        grid-template-columns: 1fr;
    }

    .product-actions-detail {
        flex-direction: column;
    }

    .btn-icon {
        width: 100%;
        height: auto;
        padding: 1rem;
    }

    .tabs-header {
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .tab-btn {
        padding: 1rem 1.5rem;
        font-size: 0.875rem;
    }

    .tabs-content {
        padding: 1.5rem;
    }

    .related-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .gallery-image {
        min-height: 280px;
    }
}

@media (max-width: 480px) {
    .breadcrumb-list {
        font-size: 0.75rem;
    }

    .gallery-thumbs {
        gap: 0.5rem;
    }

    .thumb {
        height: 60px;
    }

    .product-rating-detail {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .specs-table th,
    .specs-table td {
        padding: 0.75rem;
        font-size: 0.813rem;
    }

    .review-header {
        flex-direction: column;
        gap: 0.75rem;
    }

    .review-meta {
        text-align: left;
    }

    .review-rating {
        justify-content: flex-start;
    }

    .review-helpful {
        flex-wrap: wrap;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }
}