.product-detail-page { color: var(--rd-text); }
.product-breadcrumb { margin-bottom: var(--rd-space-3); }
.product-detail-layout { align-items: start; display: grid; gap: clamp(24px, 4vw, 56px); grid-template-columns: minmax(0, 1.02fr) minmax(380px, .98fr); }
.product-gallery { min-width: 0; position: sticky; top: 150px; }
.product-gallery-stage { background: var(--rd-surface); border: 1px solid var(--rd-border); border-radius: var(--rd-radius-lg); box-shadow: none; overflow: hidden; }
.product-gallery-stage img { aspect-ratio: 1; display: block; height: auto; object-fit: contain; padding: clamp(12px, 3vw, 28px); transition: opacity var(--rd-transition); width: 100%; }
.product-gallery-stage img.is-changing { opacity: .35; }
.product-gallery-thumbs { display: flex; gap: var(--rd-space-3); margin-top: var(--rd-space-3); overflow-x: auto; padding: 2px 2px var(--rd-space-2); scrollbar-width: thin; }
.product-gallery-thumbs .product-thumb { background: var(--rd-surface); border: 2px solid transparent; border-radius: var(--rd-radius-md); flex: 0 0 76px; height: 76px; overflow: hidden; padding: 3px; transition: border-color var(--rd-transition), box-shadow var(--rd-transition); }
.product-gallery-thumbs .product-thumb img { border: 0; border-radius: var(--rd-radius-sm); height: 100%; object-fit: contain; width: 100%; }
.product-gallery-thumbs .product-thumb.active { border-color: var(--rd-accent); box-shadow: 0 0 0 3px var(--rd-focus-ring); }
.product-purchase-card { background: var(--rd-surface); border: 1px solid var(--rd-border); border-radius: var(--rd-radius-lg); padding: clamp(20px, 3vw, 36px); }
.product-meta-line { color: var(--rd-accent); display: flex; flex-wrap: wrap; font-size: .78rem; font-weight: 750; gap: var(--rd-space-2); }
.product-meta-line span + span::before { color: var(--rd-border); content: "•"; margin-inline-end: var(--rd-space-2); }
.product-detail-title { color: var(--rd-text); font-size: clamp(1.65rem, 3vw, 2.45rem); font-weight: 850; letter-spacing: -.035em; line-height: 1.45; margin: var(--rd-space-2) 0 var(--rd-space-3); }
.product-detail-summary { color: var(--rd-text-secondary); line-height: 1.9; margin: 0; }
.product-key-features { display: flex; flex-wrap: wrap; gap: var(--rd-space-2); list-style: none; margin: var(--rd-space-4) 0 0; padding: 0; }
.product-key-features li { align-items: center; background: var(--rd-canvas); border: 1px solid var(--rd-border); border-radius: 999px; color: var(--rd-text); display: inline-flex; font-size: .76rem; gap: 6px; padding: 6px 10px; }
.product-key-features i { color: var(--rd-accent); }
.product-purchase-divider { background: var(--rd-border); height: 1px; margin: var(--rd-space-6) 0; }
.product-choice-area { display: grid; gap: var(--rd-space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: var(--rd-space-6); scroll-margin-top: 120px; }
.product-choice-field { min-width: 0; }
.product-choice-field label { color: var(--rd-text); display: flex; font-size: .86rem; font-weight: 750; gap: var(--rd-space-2); margin-bottom: var(--rd-space-2); }
.product-choice-field label span { color: var(--rd-accent); font-size: .7rem; }
.product-choice-field .form-select { background-color: var(--rd-surface); border-color: var(--rd-border); border-radius: var(--rd-radius-md); color: var(--rd-text); min-height: 48px; }
.product-choice-field .form-select:focus { border-color: var(--rd-accent); box-shadow: 0 0 0 3px var(--rd-focus-ring); }
.product-choice-field.is-missing .form-select { border-color: var(--rd-accent); box-shadow: 0 0 0 3px var(--rd-focus-ring); }
.product-choice-help { color: var(--rd-text-secondary); font-size: .76rem; grid-column: 1 / -1; margin: calc(var(--rd-space-2) * -1) 0 0; }
.product-choice-help.is-unavailable { color: var(--rd-danger-text); }
.product-price-stock { align-items: end; display: flex; gap: var(--rd-space-4); justify-content: space-between; margin-bottom: var(--rd-space-6); }
.product-price-area { min-width: 0; }
.product-final-price { color: var(--rd-text); font-size: clamp(1.45rem, 3vw, 2rem); font-weight: 900; letter-spacing: -.03em; line-height: 1.4; }
.product-final-price small { color: var(--rd-text-secondary); font-size: .72rem; font-weight: 600; }
.product-price-prompt { color: var(--rd-text-secondary); font-size: .88rem; font-weight: 650; letter-spacing: 0; }
.product-old-price, .product-discount-line del { color: var(--rd-text-secondary); font-size: .8rem; text-decoration: line-through; }
.product-discount-line { align-items: center; display: flex; gap: var(--rd-space-2); }
.product-discount-badge { background: var(--rd-sand); border-radius: 999px; color: var(--rd-accent); font-size: .7rem; font-weight: 750; padding: 3px 7px; }
.product-stock-badge { align-items: center; border-radius: 999px; display: inline-flex; flex: 0 0 auto; font-size: .76rem; font-weight: 750; gap: 6px; padding: 6px 10px; }
.product-stock-badge.is-in-stock { background: var(--rd-success-surface); color: var(--rd-success-text); }
.product-stock-badge.is-out-of-stock { background: var(--rd-danger-surface); color: var(--rd-danger-text); }
.product-primary-actions { display: grid; gap: var(--rd-space-3); grid-template-columns: auto minmax(0, 1fr); }
.product-quantity { border-color: var(--rd-border); border-radius: var(--rd-radius-md); }
.product-quantity button, .product-quantity span { background: var(--rd-surface); height: 48px; width: 44px; }
.product-quantity button { color: var(--rd-brand); font-size: 1.15rem; }
.product-add-button { align-items: center; background: var(--rd-brand); border: 1px solid var(--rd-brand); border-radius: var(--rd-radius-md); color: var(--rd-on-brand); display: inline-flex; font-size: .88rem; font-weight: 750; gap: var(--rd-space-2); justify-content: center; min-height: 48px; padding: 0 var(--rd-space-4); width: 100%; }
.product-add-button:hover { background: var(--rd-accent); border-color: var(--rd-accent); color: var(--rd-on-brand); }
.product-add-button:disabled { background: var(--rd-border); border-color: var(--rd-border); color: var(--rd-text-secondary); opacity: 1; }
.product-service-grid { display: grid; gap: var(--rd-space-3); grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: var(--rd-space-6); }
.product-service-grid .service-tile { align-items: center; background: var(--rd-canvas); border: 1px solid var(--rd-border); border-radius: var(--rd-radius-md); display: flex; gap: var(--rd-space-3); min-width: 0; padding: var(--rd-space-3); }
.product-service-grid .service-tile i { color: var(--rd-accent); font-size: 1.2rem; }
.product-service-grid .service-tile span { display: grid; min-width: 0; }
.product-service-grid .service-tile b { font-size: .78rem; }
.product-service-grid .service-tile small { color: var(--rd-text-secondary); font-size: .68rem; font-weight: 500; }
.product-information { margin-top: clamp(36px, 6vw, 72px); }
.product-content-tabs { background: var(--rd-surface); border: 1px solid var(--rd-border); border-radius: var(--rd-radius-lg); overflow: hidden; }
.product-tab-nav-wrap { border-bottom: 1px solid var(--rd-border); overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-color: color-mix(in srgb, var(--rd-text-secondary) 24%, transparent) transparent; scrollbar-width: thin; -webkit-overflow-scrolling: touch; }
.product-tab-nav-wrap::-webkit-scrollbar { height: 3px; }
.product-tab-nav-wrap::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--rd-text-secondary) 24%, transparent); border-radius: 999px; }
.product-tab-nav { border: 0; display: flex; flex-wrap: nowrap; gap: var(--rd-space-2); min-width: max-content; padding: var(--rd-space-3) clamp(16px, 3vw, 32px) 0; }
.product-tab-nav .nav-link { background: transparent; border: 0; border-bottom: 2px solid transparent; border-radius: 0; color: var(--rd-text-secondary); font-size: .88rem; font-weight: 700; min-height: 46px; padding: var(--rd-space-2) var(--rd-space-3); white-space: nowrap; }
.product-tab-nav .nav-link:hover { color: var(--rd-text); }
.product-tab-nav .nav-link.active { background: transparent; border-color: var(--rd-accent); color: var(--rd-text); }
.product-tab-nav .nav-link:focus-visible { box-shadow: 0 0 0 3px var(--rd-focus-ring); outline: 0; }
.product-tab-content { padding: clamp(20px, 4vw, 40px); }
.product-tab-content > .tab-pane { min-height: 120px; }
.product-specification-html { border-top: 1px solid var(--rd-border); margin-top: var(--rd-space-6); padding-top: var(--rd-space-6); }
.product-score-grid { display: grid; gap: var(--rd-space-5); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.product-score-item { min-width: 0; }
.product-score-item > div:first-child { align-items: baseline; display: flex; font-size: .82rem; gap: var(--rd-space-3); justify-content: space-between; margin-bottom: var(--rd-space-2); }
.product-score-item b { color: var(--rd-accent); flex: 0 0 auto; font-size: .78rem; }
.product-score-item .score-track { background: var(--rd-focus-ring); border-radius: 999px; height: 7px; overflow: hidden; }
.product-score-item .score-track i { background: linear-gradient(90deg, var(--rd-accent), var(--rd-brand)); border-radius: inherit; display: block; height: 100%; }
.product-attribute-list { display: grid; gap: 0; margin: 0; }
.product-attribute-list div { align-items: start; border-bottom: 1px solid color-mix(in srgb, var(--rd-text-secondary) 12%, transparent); display: grid; gap: var(--rd-space-4); grid-template-columns: minmax(110px, .34fr) minmax(0, 1fr); padding: 13px 0; }
.product-attribute-list div:last-child { border-bottom: 0; }
.product-attribute-list dt { color: var(--rd-text-secondary); font-size: .82rem; font-weight: 550; }
.product-attribute-list dd { color: var(--rd-text); font-weight: 700; margin: 0; min-width: 0; overflow-wrap: anywhere; }
.product-profile-notes { display: flex; flex-wrap: wrap; gap: var(--rd-space-2); margin: var(--rd-space-6) 0 0; }
.product-profile-notes div { align-items: center; background: var(--rd-canvas); border: 1px solid color-mix(in srgb, var(--rd-text-secondary) 12%, transparent); border-radius: 999px; display: inline-flex; gap: var(--rd-space-2); max-width: 100%; padding: 7px 12px; }
.product-profile-notes dt { color: var(--rd-text-secondary); font-size: .76rem; font-weight: 600; }
.product-profile-notes dd { font-size: .8rem; font-weight: 700; margin: 0; overflow-wrap: anywhere; }
.product-comments-list { display: grid; gap: var(--rd-space-3); }
.product-comments-list article { background: var(--rd-canvas); border-radius: var(--rd-radius-md); padding: var(--rd-space-4); }
.product-comments-list header { display: flex; flex-wrap: wrap; font-size: .78rem; gap: var(--rd-space-2); justify-content: space-between; }
.product-comments-list time { color: var(--rd-text-secondary); }
.product-comments-list p { line-height: 1.9; margin: var(--rd-space-3) 0 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.product-comment-form { border-top: 1px solid var(--rd-border); display: grid; gap: var(--rd-space-3); margin-top: var(--rd-space-6); padding-top: var(--rd-space-6); }
.product-comment-form label { font-size: .86rem; font-weight: 750; }
.product-comment-form textarea { background: var(--rd-canvas); border: 1px solid var(--rd-border); border-radius: var(--rd-radius-md); color: var(--rd-text); min-height: 130px; padding: var(--rd-space-3); resize: vertical; width: 100%; }
.product-comment-form textarea:focus { border-color: var(--rd-accent); box-shadow: 0 0 0 3px var(--rd-focus-ring); outline: 0; }
.product-comment-form-footer { align-items: center; display: flex; gap: var(--rd-space-3); justify-content: space-between; }
.product-comment-form-footer small { color: var(--rd-text-secondary); }
.product-comment-submit { background: var(--rd-brand); border-color: var(--rd-brand); border-radius: var(--rd-radius-md); color: var(--rd-on-brand); min-height: 44px; padding-inline: var(--rd-space-6); }
.product-comment-submit:hover { background: var(--rd-accent); border-color: var(--rd-accent); color: var(--rd-on-brand); }
.product-comment-submit:disabled { opacity: .65; }
.product-comment-status { color: var(--rd-text-secondary); font-size: .8rem; margin: 0; min-height: 1.5em; }
.product-comment-status.is-success { color: var(--rd-success-text); }
.product-comment-status.is-error { color: var(--rd-danger-text); }
.mobile-purchase-bar { display: none; }

@media (max-width: 991.98px) {
    .product-detail-layout { grid-template-columns: 1fr; }
    .product-gallery { position: static; }
    .product-gallery-stage { margin-inline: auto; max-width: 680px; }
}

@media (max-width: 767.98px) {
    .product-detail-page { padding-bottom: 168px !important; }
    .product-breadcrumb { font-size: .72rem; overflow: hidden; white-space: nowrap; }
    .product-breadcrumb span:last-child { overflow: hidden; text-overflow: ellipsis; }
    .product-detail-layout { gap: var(--rd-space-6); }
    .product-gallery-stage img { padding: var(--rd-space-3); }
    .product-gallery-thumbs .product-thumb { flex-basis: 64px; height: 64px; }
    .product-purchase-card { padding: var(--rd-space-4); }
    .product-detail-title { font-size: 1.55rem; }
    .product-choice-area { grid-template-columns: 1fr; }
    .product-choice-help { grid-column: auto; }
    .product-primary-actions { grid-template-columns: 1fr; }
    .product-quantity { justify-self: stretch; width: 100%; }
    .product-quantity button, .product-quantity span { flex: 1; width: auto; }
    .product-service-grid { grid-template-columns: 1fr; }
    .product-score-grid { grid-template-columns: 1fr; }
    .product-tab-nav { padding-inline: var(--rd-space-3); }
    .product-tab-nav .nav-link { font-size: .8rem; min-height: 48px; padding-inline: var(--rd-space-3); }
    .product-tab-content { padding: var(--rd-space-4); }
    .product-comment-form-footer { align-items: stretch; flex-direction: column; }
    .product-comment-submit { width: 100%; }
    .mobile-purchase-bar {
        align-items: center;
        background: color-mix(in srgb, var(--rd-surface) 98%, transparent);
        border: 1px solid var(--rd-border);
        border-radius: var(--rd-radius-md) var(--rd-radius-md) 0 0;
        bottom: calc(76px + env(safe-area-inset-bottom));
        box-shadow: 0 -10px 28px rgba(36, 26, 21, .1);
        display: grid;
        gap: var(--rd-space-3);
        grid-template-columns: minmax(105px, .7fr) minmax(0, 1.3fr);
        inset-inline: 0;
        opacity: 0;
        padding: var(--rd-space-3) max(var(--rd-space-3), env(safe-area-inset-right));
        pointer-events: none;
        position: fixed;
        transform: translateY(14px);
        transition: opacity var(--rd-transition), transform var(--rd-transition), visibility var(--rd-transition);
        visibility: hidden;
        z-index: 1028;
    }
    .mobile-purchase-bar.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); visibility: visible; }
    .mobile-purchase-price { color: var(--rd-text); font-size: .9rem; font-weight: 850; line-height: 1.45; min-width: 0; }
    .mobile-purchase-price small { color: var(--rd-text-secondary); display: block; font-size: .62rem; font-weight: 550; }
    .mobile-purchase-bar .product-add-button { font-size: .76rem; min-height: 46px; padding-inline: var(--rd-space-2); }
}

@media (max-width: 389.98px) {
    .mobile-purchase-bar { gap: var(--rd-space-2); grid-template-columns: minmax(96px, .65fr) minmax(0, 1.35fr); }
    .mobile-purchase-price { font-size: .82rem; }
    .mobile-purchase-bar .product-add-button { font-size: .7rem; }
}

@media (prefers-reduced-motion: reduce) {
    .product-gallery-stage img, .mobile-purchase-bar { transition-duration: .01ms !important; }
}