/* Product detail page composition. Shared primitives belong in css/components/. */
/* .breadcrumb-trail lives in css/components/navigation.css */

.page-product .product-summary {
    display: grid;
    gap: 1rem;
}

@media (max-width: 640px) {
    .page-product .product {
        padding: clamp(0.75rem, 4vw, 1.25rem) 0 var(--section-spacing-y);
    }
}

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

.page-product .product-content {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
    padding: clamp(2rem, 5vw, 3rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-1);
}

@media (max-width: 992px) {
    .page-product .product-content {
        grid-template-columns: 1fr;
    }
}

.page-product .product-images {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.page-product .main-image {
    position: relative;
    aspect-ratio: 1 / 1;
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-surface-2);
    display: grid;
    place-items: center;
}

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

.page-product .main-image[data-has-image="true"] {
    cursor: zoom-in;
}

.page-product .main-image[data-has-image="false"] img {
    display: none !important;
}

.page-product .main-image[data-has-image="true"] .product-placeholder {
    display: none !important;
}

.page-product .product-placeholder {
    text-align: center;
    color: var(--color-text-muted);
}

.page-product .placeholder-icon {
    width: clamp(4rem, 8vw, 4.9rem);
    height: clamp(4rem, 8vw, 4.9rem);
    margin: 0 auto 0.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    background: var(--color-surface-1);
}

.page-product .placeholder-icon .svg-icon {
    width: clamp(1.9rem, 3vw, 2.2rem);
    height: clamp(1.9rem, 3vw, 2.2rem);
}

.page-product .product-gallery-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: flex-start;
}

.page-product .product-gallery-thumbs:empty {
    display: none;
}

.page-product .product-gallery-thumb {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    width: 58px;
    height: 58px;
    flex: 0 0 58px;
    padding: 0;
    background: var(--color-surface-2);
    cursor: pointer;
    transition: border-color var(--transition-base), opacity var(--transition-base);
    opacity: 0.85;
}

.page-product .product-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.page-product .product-gallery-thumb:hover,
.page-product .product-gallery-thumb:focus-visible,
.page-product .product-gallery-thumb.is-active {
    border-color: var(--color-primary-fill);
    opacity: 1;
}

.page-product .product-gallery-thumb--video {
    position: relative;
    border-color: var(--color-danger-border);
}

.page-product .product-gallery-thumb__play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-3);
}

.page-product .product-info {
    display: grid;
    gap: 1.25rem;
}

.page-product .product-category-label {
    margin: 0;
    font-size: var(--font-size-xs);
}

.page-product .product-category-label:empty {
    display: none;
}

.page-product .product-category-label a {
    color: var(--color-text-subtle);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.page-product .product-category-label a:hover {
    color: var(--color-text);
}

.page-product .product-title {
    margin: 0;
    font-size: var(--font-size-3xl);
    line-height: 1.1;
}

.page-product .product-description {
    margin: 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

.page-product .product-price-group {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-block: 0.5rem;
    border-block: 1px solid var(--color-border);
}

.page-product .current-price {
    color: var(--color-text);
    font: var(--font-weight-semibold) var(--font-size-2xl)/1.2 var(--font-family-display);
    letter-spacing: var(--letter-spacing-tight);
}

.page-product .old-price {
    color: var(--color-text-subtle);
    font-size: var(--font-size-base);
    text-decoration: line-through;
}

.page-product .discount {
    color: var(--color-text-subtle);
    font-size: var(--font-size-xs);
}

.page-product .product-demo-cta:empty {
    display: none;
}

.page-product .product-meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.page-product .product-variations {
    display: grid;
    gap: 0.5rem;
}

.page-product .product-variations label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.page-product .product-variations small {
    color: var(--color-text-subtle);
    font-size: var(--font-size-xs);
}

.page-product .product-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.page-product .quantity-selector {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-surface-1);
}

.page-product .qty-btn {
    min-width: 40px;
    min-height: 44px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
}

.page-product .qty-btn:hover {
    background: var(--color-surface-2);
}

.page-product .quantity-selector input,
.page-product .quantity-selector span {
    min-width: 48px;
    padding: 0 0.75rem;
    border: 0;
    border-inline: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.page-product .add-to-cart {
    min-height: 46px;
}

.page-product .add-to-cart.disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.page-product .product-features h3 {
    margin-bottom: 0.75rem;
    font-size: var(--font-size-xl);
}

.page-product .product-features ul {
    display: grid;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.page-product .product-features li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--color-text-muted);
}

.page-product .product-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.page-product .product-long-description {
    margin-top: clamp(2rem, 4vw, 3rem);
    padding-top: clamp(2rem, 4vw, 3rem);
    border-top: 1px solid var(--color-border);
}

.page-product .product-long-description h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: 1rem;
}

.page-product .product-long-description p,
.page-product .product-long-description ul,
.page-product .product-long-description ol {
    color: var(--color-text-muted);
    line-height: 1.75;
}

.page-product .product-long-description ul,
.page-product .product-long-description ol {
    padding-left: 1.25rem;
    margin-bottom: 1rem;
}

.page-product .product-interface-showcase {
    margin-top: clamp(2rem, 4vw, 3rem);
    padding-top: clamp(2rem, 4vw, 3rem);
    border-top: 1px solid var(--color-border);
}

.page-product .product-interface-showcase[data-has-interface="false"] {
    display: none;
}

.page-product .interface-showcase-header {
    margin-bottom: 1.5rem;
}

.page-product .interface-showcase-header h2 {
    margin-bottom: 0.5rem;
    font-size: var(--font-size-2xl);
}

.page-product .interface-showcase-header p {
    margin: 0;
    color: var(--color-text-muted);
}

.page-product .interface-showcase-image {
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-2);
}

.page-product .interface-showcase-image img {
    width: 100%;
    height: auto;
    display: block;
}

.page-product .interface-showcase-content {
    display: grid;
    gap: 1rem;
}

.page-product .interface-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.page-product .interface-gallery--slider {
    position: relative;
    overflow: hidden;
}

.page-product .interface-gallery__viewport {
    overflow: hidden;
}

.page-product .interface-gallery__track {
    display: flex;
    gap: 1rem;
    transition: transform var(--transition-base);
}

.page-product .interface-gallery__item {
    flex: 0 0 auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--color-surface-2);
}

.page-product .interface-gallery--slider .interface-gallery__item {
    flex: 0 0 100%;
}

.page-product .interface-gallery__item img {
    width: 100%;
    height: auto;
    display: block;
}

.page-product .interface-gallery__btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    background: var(--color-surface-1);
    color: var(--color-text);
    cursor: pointer;
}

.page-product .interface-gallery__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-product .interface-gallery__btn--prev { left: 0.5rem; }
.page-product .interface-gallery__btn--next { right: 0.5rem; }

.page-product .interface-gallery__dots {
    display: flex;
    justify-content: center;
    gap: 0.4rem;
    margin-top: 1rem;
}

.page-product .interface-gallery__dot {
    width: 8px;
    height: 8px;
    border: 1px solid var(--color-border-strong);
    border-radius: 99px;
    background: var(--color-surface-1);
    cursor: pointer;
}

.page-product .interface-gallery__dot--active {
    background: var(--color-primary-fill);
    border-color: var(--color-primary-fill);
}

.page-product .product-faq {
    margin-top: clamp(2rem, 4vw, 3rem);
    padding-top: clamp(2rem, 4vw, 3rem);
    border-top: 1px solid var(--color-border);
}

.page-product .faq-grid {
    display: grid;
    gap: 1rem;
}

.page-product .faq-item {
    padding: 1.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-1);
}

.page-product .product-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 3vw, 2rem);
}

.page-product .product-lightbox[hidden] {
    display: none;
}

.page-product .product-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(7, 16, 29, 0.86);
}

.page-product .product-lightbox__dialog {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background: var(--color-surface-1);
    max-width: 100%;
    max-height: 100%;
    z-index: 1;
}

.page-product .product-lightbox__image {
    display: block;
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
}

.page-product .product-lightbox__close,
.page-product .product-lightbox__nav {
    position: absolute;
    width: 38px;
    height: 38px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    background: var(--color-surface-1);
    color: var(--color-text);
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
}

.page-product .product-lightbox__close {
    top: 0.75rem;
    right: 0.75rem;
}

.page-product .product-lightbox__nav {
    top: 50%;
    transform: translateY(-50%);
}

.page-product .product-lightbox__nav--prev { left: 0.75rem; }
.page-product .product-lightbox__nav--next { right: 0.75rem; }

@media (max-width: 640px) {
    .page-product .product-gallery-thumb {
        width: 50px;
        height: 50px;
        flex-basis: 50px;
    }
}