.product-detail-page {
    background: var(--bg-page);
    min-height: 60vh;
}

.product-detail-shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 42px 24px 64px;
}

.product-breadcrumb {
    margin-bottom: 22px;
}

.product-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    color: var(--fg-3);
    font: 600 13px var(--font-body);
}

.product-breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 8px;
    color: var(--fg-4);
}

.product-breadcrumb a {
    color: var(--fg-link);
    text-decoration: none;
}

.product-breadcrumb a:hover {
    color: var(--fg-link-hover);
}

.product-detail-layout {
    display: grid;
    grid-template-columns: minmax(300px, 390px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.product-detail-buybox {
    min-width: 0;
    position: sticky;
    top: 88px;
    display: grid;
    gap: 18px;
}

.product-gallery,
.product-purchase-panel,
.product-detail-card {
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.product-gallery {
    padding: 14px;
    min-width: 0;
    overflow: hidden;
}

.product-main-image-wrap {
    aspect-ratio: 4 / 3;
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-main-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-thumb-carousel {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr) 36px;
    gap: 8px;
    align-items: center;
    margin-top: 12px;
    min-width: 0;
}

.product-thumb-row {
    display: flex;
    gap: 8px;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    padding: 2px;
    scroll-behavior: smooth;
    scrollbar-width: none;
}

.product-thumb-row::-webkit-scrollbar {
    display: none;
}

.product-thumb-nav {
    width: 36px;
    height: 64px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--fg-2);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition:
        background var(--motion-fast) var(--ease-standard),
        border-color var(--motion-fast) var(--ease-standard),
        color var(--motion-fast) var(--ease-standard),
        opacity var(--motion-fast) var(--ease-standard);
}

.product-thumb-nav:hover:not(:disabled) {
    border-color: var(--clevr-blue-500);
    background: var(--bg-brand-soft);
    color: var(--fg-brand);
}

.product-thumb-nav:disabled {
    cursor: default;
    opacity: 0.35;
}

.product-thumb-nav span {
    display: block;
    font: 700 30px/1 var(--font-body);
    transform: translateY(-1px);
}

.product-thumb {
    flex: 0 0 64px;
    width: 64px;
    height: 64px;
    object-fit: contain;
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: #fff;
    cursor: pointer;
    padding: 4px;
    transition: border-color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.product-thumb:hover,
.product-thumb.is-active {
    border-color: var(--clevr-blue-500);
    box-shadow: 0 0 0 2px var(--clevr-blue-100);
}

.product-purchase-panel {
    padding: 18px;
}

.product-detail-price {
    color: var(--fg-brand);
    display: block;
    font: 800 30px var(--font-mono);
    margin-bottom: 14px;
}

.product-cart-form {
    display: grid;
    gap: 10px;
}

.product-cart-row {
    display: grid;
    grid-template-columns: 74px minmax(0, 1fr) 46px;
    gap: 10px;
}

.product-qty-input {
    min-width: 0;
    border: 1px solid var(--border-base);
    border-radius: var(--radius-md);
    color: var(--fg-1);
    font: 700 15px var(--font-body);
    min-height: 46px;
    padding: 10px;
    text-align: center;
}

.product-add-btn,
.product-stock-panel button {
    border: 0;
    border-radius: var(--radius-md);
    background: var(--clevr-blue-500);
    color: #fff;
    cursor: pointer;
    font: 700 15px var(--font-body);
    min-height: 46px;
    padding: 12px 18px;
    transition: background var(--motion-fast) var(--ease-standard);
}

.product-add-btn:hover,
.product-stock-panel button:hover {
    background: var(--clevr-blue-600);
}

.product-wishlist-btn {
    border: 1px solid var(--border-base);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--fg-3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0;
    transition: border-color var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard);
}

.product-wishlist-btn:hover,
.product-wishlist-btn.is-active {
    background: #fff1f2;
    border-color: #fecdd3;
    color: #e11d48;
}

.product-wishlist-btn svg {
    width: 21px;
    height: 21px;
}

.product-stock-note,
.product-stock-panel p {
    color: var(--fg-2);
    font: 600 13px var(--font-body);
    margin: 0;
}

.product-feedback {
    color: var(--fg-2);
    font: 600 13px var(--font-body);
    min-height: 20px;
    text-align: center;
}

.product-feedback.text-green-500 {
    color: #15803d;
}

.product-feedback.text-red-500 {
    color: var(--danger);
}

.product-stock-panel {
    display: grid;
    gap: 12px;
}

.product-stock-panel p:first-child {
    color: var(--danger);
    font-size: 15px;
}

.product-stock-panel span {
    color: var(--fg-1);
}

.product-stock-panel form {
    display: grid;
    gap: 10px;
}

.product-stock-panel input {
    border: 1px solid var(--border-base);
    border-radius: var(--radius-md);
    color: var(--fg-1);
    font: 500 14px var(--font-body);
    min-height: 44px;
    padding: 10px 12px;
}

.product-page-menu {
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 18px;
}

.product-page-menu h3 {
    color: var(--fg-1);
    font: 700 15px var(--font-body);
    margin: 0 0 10px;
}

.product-page-menu ul {
    display: grid;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-page-menu a {
    color: var(--fg-link);
    font: 600 14px var(--font-body);
    text-decoration: none;
}

.product-page-menu a:hover {
    color: var(--fg-link-hover);
}

.product-detail-content {
    display: grid;
    gap: 22px;
    min-width: 0;
}

.product-detail-card {
    padding: 24px;
}

.product-detail-card h1 {
    color: var(--fg-1);
    font: 800 42px/1.08 var(--font-body);
    letter-spacing: 0;
    margin: 8px 0 18px;
}

.product-detail-card h2 {
    color: var(--fg-1);
    font: 700 24px/1.25 var(--font-body);
    margin: 0 0 16px;
}

.product-description {
    color: var(--fg-2);
    font: 400 16px/1.65 var(--font-body);
}

.product-description > *:first-child {
    margin-top: 0;
}

.product-description > *:last-child {
    margin-bottom: 0;
}

.product-description p {
    margin: 0 0 14px;
}

.product-description ul,
.product-description ol {
    color: var(--fg-2);
    margin: 0 0 16px;
    padding-left: 24px;
}

.product-description ul {
    list-style: disc;
}

.product-description ol {
    list-style: decimal;
}

.product-description li {
    margin: 6px 0;
    padding-left: 2px;
}

.product-description h1,
.product-description h2,
.product-description h3 {
    color: var(--fg-1);
    line-height: 1.25;
}

.product-downloads,
.product-related-grid,
.product-recommendations {
    margin-top: 28px;
}

.product-download-list,
.product-related-list {
    display: grid;
    gap: 12px;
}

.product-download-link,
.product-related-item {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--neutral-50);
    color: var(--fg-1);
    font: 700 14px/1.35 var(--font-body);
    min-width: 0;
    padding: 12px;
    text-decoration: none;
    transition: border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.product-download-link:hover,
.product-related-item:hover,
.product-article-link:hover,
.product-recommendation-card:hover {
    border-color: var(--clevr-blue-300);
    background: var(--bg-brand-soft);
    box-shadow: var(--shadow-sm);
}

.product-download-link svg,
.product-related-item svg {
    width: 20px;
    height: 20px;
    color: var(--fg-link);
}

.product-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
}

.product-related-card {
    height: 100%;
}

.product-kit-card {
    border-color: var(--clevr-blue-200);
    background: var(--clevr-blue-50);
}

.product-related-item {
    grid-template-columns: 66px minmax(0, 1fr) auto;
}

.product-related-item img {
    width: 66px;
    height: 66px;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 4px;
}

.product-related-item span,
.product-download-link span,
.product-article-link span,
.product-recommendation-card span {
    min-width: 0;
}

.product-article-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.product-article-link {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--neutral-50);
    color: var(--fg-1);
    display: grid;
    gap: 10px;
    min-width: 0;
    padding: 10px;
    text-decoration: none;
    transition: border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.product-article-link img {
    aspect-ratio: 4 / 3;
    width: 100%;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 6px;
}

.product-article-link span {
    color: var(--fg-1);
    font: 700 13px/1.35 var(--font-body);
}

.product-recommendation-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.product-recommendation-card {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--neutral-50);
    color: var(--fg-1);
    display: grid;
    gap: 12px;
    min-width: 0;
    padding: 14px;
    text-decoration: none;
    transition: border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}

.product-recommendation-card img {
    aspect-ratio: 4 / 3;
    width: 100%;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 8px;
}

.product-recommendation-card span {
    color: var(--fg-1);
    font: 700 14px/1.35 var(--font-body);
}

@media (max-width: 980px) {
    .product-detail-layout,
    .product-related-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-buybox {
        position: static;
    }
}

@media (max-width: 700px) {
    .product-detail-shell {
        padding: 34px 16px 48px;
    }

    .product-detail-card {
        padding: 18px;
    }

    .product-detail-card h1 {
        font-size: 34px;
    }

    .product-cart-row,
    .product-recommendation-grid,
    .product-article-grid {
        grid-template-columns: 1fr;
    }

    .product-wishlist-btn {
        min-height: 44px;
    }
}