/* Product detail page — professional bookstore layout */

.product-show {
    padding: 24px 0 64px;
    background: linear-gradient(180deg, #f8fafb 0%, #fff 280px);
}

.product-show__breadcrumb {
    margin-bottom: 24px;
}

.product-show__alert {
    border: none;
    border-radius: 12px;
    padding: 14px 18px;
    margin-bottom: 20px;
    font-size: 0.9375rem;
}

.product-show__hero {
    display: grid;
    grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    background: #fff;
    border: 1px solid #e8edf2;
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
    margin-bottom: 32px;
}

.product-show__gallery {
    position: sticky;
    top: 90px;
}

.product-show__gallery-inner {
    position: relative;
    background: linear-gradient(145deg, #f4f7f9 0%, #eef3f6 100%);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid #e2e8f0;
}

.product-show__main-swiper {
    height: 420px;
    width: 100%;
    margin-bottom: 12px;
    border-radius: 12px;
    overflow: hidden;
}

.product-show__thumb-swiper {
    height: 88px;
    box-sizing: border-box;
    padding: 4px 0;
}

.product-show__thumb-swiper .swiper-slide {
    width: 22%;
    height: 100%;
    opacity: 0.45;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: opacity 0.2s ease, border-color 0.2s ease;
}

.product-show__thumb-swiper .swiper-slide-thumb-active {
    opacity: 1;
    border-color: #00a4a6;
}

.product-show__main-swiper .swiper-slide img,
.product-show__thumb-swiper .swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.product-show__main-swiper .swiper-button-next,
.product-show__main-swiper .swiper-button-prev {
    background: rgba(15, 23, 42, 0.55);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: #fff;
}

.product-show__main-swiper .swiper-button-next:after,
.product-show__main-swiper .swiper-button-prev:after {
    font-size: 16px;
    font-weight: 700;
}

.product-show__info {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.product-show__categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.product-show__category {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(0, 164, 166, 0.08);
    color: #007a7c;
    font-size: 0.8125rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.product-show__category:hover {
    background: #00a4a6;
    color: #fff;
}

.product-show__title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 800;
    line-height: 1.45;
    color: #0f172a;
    margin: 0;
}

.product-show__meta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px 24px;
    color: #475569;
    font-size: 0.9375rem;
}

.product-show__meta-row a {
    color: #0f172a;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px dashed #cbd5e1;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.product-show__meta-row a:hover {
    color: #00a4a6;
    border-color: #00a4a6;
}

.product-show__meta-label {
    color: #64748b;
    font-weight: 500;
    margin-left: 4px;
}

.product-show__price-box {
    padding: 18px 20px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
}

.product-show__stock {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.product-show__stock--in {
    background: #ecfdf5;
    color: #047857;
}

.product-show__stock--low {
    background: #fffbeb;
    color: #b45309;
}

.product-show__stock--out {
    background: #fef2f2;
    color: #b91c1c;
}

.product-show__facts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.product-show__fact {
    padding: 12px 14px;
    background: #fff;
    border: 1px solid #e8edf2;
    border-radius: 12px;
    text-align: center;
}

.product-show__fact-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 4px;
}

.product-show__fact-label {
    font-size: 0.75rem;
    color: #64748b;
}

.product-show__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}

.product-show__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 52px;
    padding: 0 28px;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.product-show__btn--primary {
    background: linear-gradient(135deg, #00a4a6 0%, #008688 100%);
    color: #fff;
    box-shadow: 0 8px 20px rgba(0, 164, 166, 0.28);
}

.product-show__btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(0, 164, 166, 0.34);
    color: #fff;
}

.product-show__btn--outline {
    background: #fff;
    color: #00a4a6;
    border: 2px solid #00a4a6;
}

.product-show__btn--outline:hover {
    background: rgba(0, 164, 166, 0.06);
    color: #007a7c;
}

.product-show__qty {
    display: inline-flex;
    align-items: center;
    gap: 0;
    background: #f1f5f9;
    border-radius: 14px;
    padding: 4px;
    border: 1px solid #e2e8f0;
}

.product-show__qty-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 10px;
    background: #fff;
    color: #0f172a;
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-show__qty-btn:hover:not(:disabled) {
    background: #00a4a6;
    color: #fff;
}

.product-show__qty-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.product-show__qty-btn--remove {
    color: #dc2626;
}

.product-show__qty-btn--remove:hover:not(:disabled) {
    background: #dc2626;
    color: #fff;
}

.product-show__qty-value {
    min-width: 48px;
    text-align: center;
    font-size: 1.125rem;
    font-weight: 800;
    color: #0f172a;
}

.product-show__trust {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 8px;
    border-top: 1px dashed #e2e8f0;
}

.product-show__trust-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: #64748b;
}

.product-show__trust-item i {
    color: #00a4a6;
}

.product-show__tabs-wrap {
    background: #fff;
    border: 1px solid #e8edf2;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
    margin-bottom: 48px;
}

.product-show__tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 12px 16px 0;
    background: #f8fafc;
    border-bottom: 1px solid #e8edf2;
}

.product-show__tabs-nav .nav-link {
    border: none;
    border-radius: 12px 12px 0 0;
    padding: 14px 22px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: #64748b;
    background: transparent;
    transition: color 0.2s ease, background 0.2s ease;
}

.product-show__tabs-nav .nav-link:hover {
    color: #00a4a6;
}

.product-show__tabs-nav .nav-link.active {
    color: #00a4a6;
    background: #fff;
    box-shadow: 0 -2px 0 #00a4a6 inset;
}

.product-show__tab-body {
    padding: 28px 32px 36px;
}

.product-show__description {
    font-size: 1rem;
    line-height: 2;
    color: #334155;
}

.product-show__description p {
    margin-bottom: 1rem;
}

.product-show__specs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid #e8edf2;
    border-radius: 12px;
    overflow: hidden;
}

.product-show__specs-table tr:not(:last-child) td,
.product-show__specs-table tr:not(:last-child) th {
    border-bottom: 1px solid #e8edf2;
}

.product-show__specs-table th,
.product-show__specs-table td {
    padding: 14px 18px;
    font-size: 0.9375rem;
}

.product-show__specs-table th {
    width: 34%;
    background: #f8fafc;
    color: #64748b;
    font-weight: 600;
}

.product-show__specs-table td {
    color: #0f172a;
    font-weight: 500;
}

.product-reviews {
    max-width: 100%;
}

.product-reviews__summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #f0fdfa 0%, #f8fafc 100%);
    border: 1px solid #ccfbf1;
    border-radius: 14px;
    margin-bottom: 24px;
}

.product-reviews__score {
    font-size: 2rem;
    font-weight: 800;
    color: #00a4a6;
    line-height: 1;
}

.product-reviews__form,
.product-reviews__list {
    background: #fff;
    border: 1px solid #e8edf2;
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 20px;
}

.product-reviews__form-title,
.product-reviews__list-title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 16px;
}

.product-reviews__star-btn {
    background: none;
    border: none;
    padding: 0 4px;
    font-size: 1.25rem;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.product-reviews__star-btn:hover {
    transform: scale(1.15);
}

.product-reviews__submit {
    background: #00a4a6;
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 10px 22px;
    font-weight: 600;
    transition: background 0.2s ease;
}

.product-reviews__submit:hover {
    background: #008688;
}

.product-reviews__item {
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #e8edf2;
}

.product-reviews__item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.product-reviews__author {
    font-weight: 700;
    color: #0f172a;
}

.product-reviews__badge {
    display: inline-block;
    font-size: 0.75rem;
    color: #047857;
    background: #ecfdf5;
    padding: 2px 8px;
    border-radius: 999px;
    margin-right: 6px;
}

.product-reviews__reply {
    margin-top: 14px;
    padding: 14px 16px;
    background: #f0fdfa;
    border-right: 3px solid #00a4a6;
    border-radius: 0 10px 10px 0;
}

.product-show__related {
    margin-top: 8px;
}

.product-show__related-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.product-show__related-header h2 {
    font-size: 1.375rem;
    font-weight: 800;
    color: #0f172a;
    margin: 0;
    position: relative;
    padding-bottom: 10px;
}

.product-show__related-header h2::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0;
    width: 48px;
    height: 3px;
    border-radius: 999px;
    background: #00a4a6;
}

.product-show__related-link {
    color: #00a4a6;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.9375rem;
}

.product-show__related-link:hover {
    text-decoration: underline;
}

.product-show__related-grid {
    --bs-gutter-x: 1rem;
    --bs-gutter-y: 1.25rem;
}

.product-show__related-grid > [class*="col-"] {
    display: flex;
}

@media (max-width: 991px) {
    .product-show__hero {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 20px;
    }

    .product-show__gallery {
        position: static;
    }

    .product-show__main-swiper {
        height: 340px;
    }
}

@media (max-width: 575px) {
    .product-show {
        padding-top: 12px;
    }

    .product-show__hero {
        padding: 16px;
        border-radius: 16px;
    }

    .product-show__main-swiper {
        height: 280px;
    }

    .product-show__tab-body {
        padding: 20px 16px 28px;
    }

    .product-show__tabs-nav .nav-link {
        padding: 12px 14px;
        font-size: 0.875rem;
    }

    .product-show__btn {
        width: 100%;
    }

    .product-show__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .product-show__qty {
        justify-content: center;
        width: 100%;
    }
}