/* ============================================
   PAGE: Chi tiết sản phẩm — product/product
   Route: product/product
   ============================================ */

/* --- Layout chính --- */
.product-detail {
    margin-bottom: 40px;
}

/* --- Gallery --- */
.product-detail__gallery {
    position: sticky;
    top: 20px;
}

.product-detail__gallery-main {
    position: relative;
    margin-bottom: 12px;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f8f8;
}

.product-detail__gallery-main-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    aspect-ratio: 1 / 1;
}

.product-detail__gallery-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--shop-color-accent);
    color: #fff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    z-index: 2;
}

.product-detail__gallery-zoom {
    display: block;
    cursor: zoom-in;
}

.product-detail__gallery-thumbs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.product-detail__gallery-item {
    flex: 0 0 72px;
    width: 72px;
    height: 72px;
    border-radius: 6px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.2s;
}

.product-detail__gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-detail__gallery-item:hover,
.product-detail__gallery-item--active {
    border-color: var(--shop-color-main);
}

/* --- Info --- */
.product-detail__info {
    padding-top: 0;
}

.product-detail__name {
    font-size: 20px;
    font-weight: 700;
    color: var(--body-color);
    line-height: 1.4;
    margin-bottom: 12px;
}

/* --- Meta --- */
.product-detail__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #eee;
}

.product-detail__meta-item strong {
    color: var(--body-color);
}

.product-detail__meta-link {
    color: var(--shop-color-main);
    font-weight: 600;
}

.product-detail__meta-link:hover {
    color: var(--shop-color-accent);
}

/* --- Rating --- */
.product-detail__rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.product-detail__stars i {
    color: #f5a623;
    font-size: 14px;
}

.product-detail__stars i.far {
    color: #ddd;
}

.product-detail__review-count {
    font-size: 13px;
    color: #999;
}

/* --- Giá --- */
.product-detail__price-wrap {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: #fafafa;
    border-radius: 8px;
}

.product-detail__price {
    font-size: 26px;
    font-weight: 700;
    color: var(--shop-color-accent);
}

.product-detail__price-old {
    font-size: 16px;
    color: #999;
    text-decoration: line-through;
}

.product-detail__price-percent {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--shop-color-accent);
    padding: 2px 8px;
    border-radius: 4px;
}

/* --- Giảm giá theo SL --- */
.product-detail__discounts {
    margin-bottom: 16px;
}

.product-detail__discount-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.product-detail__discount-table th,
.product-detail__discount-table td {
    padding: 8px 12px;
    border: 1px solid #eee;
    text-align: center;
}

.product-detail__discount-table th {
    background: #f5f5f5;
    font-weight: 600;
    color: var(--body-color);
}

/* --- Mô tả ngắn --- */
.product-detail__short-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

/* --- Recurring --- */
.product-detail__recurring {
    margin-bottom: 16px;
}

.product-detail__recurring label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

/* --- Số lượng --- */
.product-detail__qty {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.product-detail__qty-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--body-color);
}

.product-detail__qty-control {
    display: inline-flex;
    align-items: center;
    border: 1px solid #ddd;
    border-radius: 6px;
    overflow: hidden;
}

.product-detail__qty-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: #f5f5f5;
    font-size: 18px;
    cursor: pointer;
    transition: background 0.2s;
    color: var(--body-color);
}

.product-detail__qty-btn:hover {
    background: #e9e9e9;
}

.product-detail__qty-input {
    width: 50px;
    height: 40px;
    border: none;
    border-left: 1px solid #ddd;
    border-right: 1px solid #ddd;
    text-align: center;
    font-size: 15px;
    font-weight: 600;
    color: var(--body-color);
    outline: none;
}

/* --- Nút hành động --- */
.product-detail__actions {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.product-detail__btn-cart,
.product-detail__btn-buy {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.product-detail__btn-cart {
    background: #fff;
    color: var(--shop-color-main);
    border: 2px solid var(--shop-color-main);
}

.product-detail__btn-cart:hover {
    background: var(--shop-color-main);
    color: #fff;
}

.product-detail__btn-buy {
    background: var(--btn-bg);
    color: var(--btn-color);
    border: 2px solid var(--btn-bg);
}

.product-detail__btn-buy:hover {
    background: var(--btn-color);
    color: var(--btn-bg);
    border-color: var(--btn-bg);
}

/* --- Extra actions: Wishlist, Compare --- */
.product-detail__extra-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #eee;
}

.product-detail__extra-btn {
    background: none;
    border: none;
    font-size: 13px;
    color: #666;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0;
    transition: color 0.2s;
}

.product-detail__extra-btn:hover {
    color: var(--shop-color-accent);
}

/* --- Share --- */
.product-detail__share {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: #666;
}

.product-detail__share-label {
    font-weight: 600;
    min-width:50px;
}

/* ============================================
   TABS — Mô tả + Thuộc tính + Đánh giá
   ============================================ */
.product-detail__tabs {
    margin-top: 40px;
    margin-bottom: 40px;
}

.product-detail__tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #eee;
    margin-bottom: 0;
}

.product-detail__tab-link {
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    color: #666;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all 0.2s;
}

.product-detail__tab-link:hover {
    color: var(--shop-color-main);
}

.product-detail__tab-link--active {
    color: var(--shop-color-main);
    border-bottom-color: var(--shop-color-main);
}

.product-detail__tab-content {
    display: none;
    padding: 24px 0;
}

.product-detail__tab-content--active {
    display: block;
}

/* --- Description truncate --- */
.product-detail__desc {
    position: relative;
}

.product-detail__desc-content {
    max-height: 500px;
    overflow: hidden;
    position: relative;
    transition: max-height 0.5s ease;
}

.product-detail__desc-content.is-expanded {
    max-height: none;
}

.product-detail__desc-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    pointer-events: none;
    transition: opacity 0.3s;
}

.product-detail__desc.is-expanded .product-detail__desc-gradient {
    opacity: 0;
}

.product-detail__desc-toggle-wrap {
    text-align: center;
    padding-top: 12px;
}

.product-detail__desc-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--shop-color-main);
    cursor: pointer;
}

.product-detail__desc-toggle:hover {
    color: var(--shop-color-accent);
}

.product-detail__desc-toggle-less {
    display: none;
}

.product-detail__desc.is-expanded .product-detail__desc-toggle-more {
    display: none;
}

.product-detail__desc.is-expanded .product-detail__desc-toggle-less {
    display: inline;
}

/* --- Attributes table --- */
.product-detail__attr-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.product-detail__attr-table th {
    background: var(--shop-color-main);
    color: #fff;
    padding: 10px 16px;
    text-align: left;
    font-size: 14px;
    font-weight: 600;
}

.product-detail__attr-table td {
    padding: 10px 16px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.product-detail__attr-name {
    width: 35%;
    font-weight: 600;
    color: var(--body-color);
    background: #fafafa;
}

.product-detail__attr-value {
    color: #555;
}

.product-detail__attr-table tr:nth-child(even) .product-detail__attr-name {
    background: #f5f5f5;
}

/* ============================================
   RELATED PRODUCTS
   ============================================ */
.product-detail__related {
    padding: 40px 0;
    background: #fafafa;
}

.product-detail__related .section-heading {
    margin-bottom: 24px;
}

.product-detail__related-grid {
    /* Dùng Bootstrap row + col */
}

/* ============================================
   REVIEWS (basic wrapper)
   ============================================ */
.product-detail__reviews {
    padding: 0;
}

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

/* Tablet */
@media (min-width: 768px) {
    .product-detail__name {
        font-size: 24px;
    }

    .product-detail__price {
        font-size: 28px;
    }

    .product-detail__gallery-item {
        flex: 0 0 80px;
        width: 80px;
        height: 80px;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .product-detail__info {
        padding-left: 16px;
    }

    .product-detail__name {
        font-size: 26px;
    }

    .product-detail__gallery {
        position: sticky;
        top: 100px;
    }

    .product-detail__gallery-thumbs {
        overflow-x: visible;
        flex-wrap: wrap;
    }
}

/* Large desktop */
@media (min-width: 1200px) {
    .product-detail__price {
        font-size: 30px;
    }
}

/* Mobile actions stacked */
@media (max-width: 767px) {
    .product-detail__actions {
        flex-direction: column;
    }

    .product-detail__btn-cart,
    .product-detail__btn-buy {
        width: 100%;
    }

    .product-detail__tab-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .product-detail__tab-link {
        white-space: nowrap;
        padding: 10px 16px;
        font-size: 14px;
    }

    .product-detail__gallery {
        position: static;
        margin-bottom: 24px;
    }

    .product-detail__info {
        padding-left: 0;
    }
}