.product-detail-page {
    padding-top: 14px;
}

.product-breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
    margin: 0;
}

.product-breadcrumbs a {
    color: var(--color-text-secondary);
}

.product-breadcrumbs .separator {
    color: var(--color-text-secondary);
}

.product-back-link {
    display: inline-flex;
    margin-top: 14px;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-hero-grid {
    margin-top: 10px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-panel-lg);
    align-items: start;
}

.product-main-media {
    position: relative;
    border: 1px solid var(--color-border-strong);
    background-color: var(--color-bg-chrome);
    overflow: hidden;
}

.product-main-media-open {
    position: absolute;
    inset: 0;
    z-index: 1;
    border: 0;
    padding: 0;
    background: transparent;
    cursor: zoom-in;
}

.product-main-media-open:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
}

.product-main-media-empty {
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-secondary);
    padding: 16px;
}

.product-main-media img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.product-gallery-nav {
    position: absolute;
    top: 50%;
    z-index: 3;
    width: 52px;
    height: 52px;
    padding: 0;
    border: 1px solid rgba(245, 245, 247, 0.14);
    background-color: rgba(64, 66, 67, 0.42);
    color: rgba(245, 245, 247, 0.88);
    transform: translateY(-50%);
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.product-gallery-nav::before,
.product-gallery-nav::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    border: solid currentColor;
    border-width: 0 2px 2px 0;
    background: transparent;
    transform-origin: center;
}

.product-gallery-nav.is-prev {
    left: 12px;
}

.product-gallery-nav.is-prev::before {
    transform: translate(-40%, -50%) rotate(135deg);
}

.product-gallery-nav.is-prev::after {
    content: none;
}

.product-gallery-nav.is-next::before {
    transform: translate(-60%, -50%) rotate(-45deg);
}

.product-gallery-nav.is-next::after {
    content: none;
}

.product-gallery-nav.is-next {
    right: 12px;
}

.product-gallery-nav:hover {
    background-color: rgba(246, 177, 41, 0.18);
    border-color: var(--color-accent-border-soft);
}

.product-gallery-nav:active {
    transform: translateY(-50%) scale(0.96);
}

.product-gallery-nav:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.product-thumb-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.product-thumb {
    display: block;
    padding: 0;
    border: 1px solid var(--color-border-strong);
    overflow: hidden;
    background-color: var(--color-bg-chrome);
    cursor: pointer;
    appearance: none;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.product-thumb.is-active {
    border-color: var(--color-accent);
}

.product-thumb:hover {
    border-color: var(--color-accent-border-soft);
}

.product-thumb:active {
    transform: translateY(1px);
}

.product-thumb:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.product-thumb img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

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

.product-gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 150;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.product-gallery-lightbox-backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    padding: 0;
    background-color: rgba(15, 16, 17, 0.88);
    cursor: zoom-out;
}

.product-gallery-lightbox-dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 1180px);
    max-height: calc(100vh - 48px);
    padding: 64px 84px;
    border: 1px solid rgba(245, 245, 247, 0.12);
    background-color: rgba(26, 28, 29, 0.92);
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-gallery-lightbox-dialog img {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: calc(100vh - 176px);
    object-fit: contain;
}

.product-gallery-lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(245, 245, 247, 0.14);
    padding: 0;
    background-color: rgba(64, 66, 67, 0.42);
    color: rgba(245, 245, 247, 0.88);
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.product-gallery-lightbox-close::before,
.product-gallery-lightbox-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 2px;
    background-color: currentColor;
}

.product-gallery-lightbox-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.product-gallery-lightbox-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.product-gallery-lightbox-close:hover,
.product-gallery-lightbox-nav:hover {
    background-color: rgba(246, 177, 41, 0.18);
    border-color: var(--color-accent-border-soft);
}

.product-gallery-lightbox-close:active {
    transform: scale(0.96);
}

.product-gallery-lightbox-close:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.product-gallery-lightbox-nav {
    background-color: rgba(64, 66, 67, 0.72);
}

body.is-product-lightbox-open {
    overflow: hidden;
}

.product-summary h1 {
    margin: 0;
    font-size: var(--font-size-section-title);
    line-height: var(--line-height-tight);
}

.product-badges {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 2;
    display: grid;
    gap: 8px;
    justify-items: end;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border: 1px solid var(--color-border-image);
    color: var(--color-text-primary);
    font-size: var(--font-size-text-md);
    line-height: 1.2;
}

.product-subtitle {
    margin: 8px 0 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-lg);
}

.product-rating-row {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-rating-row span {
    color: var(--color-accent);
}

.product-rating-row strong {
    color: var(--color-text-primary);
    font-size: var(--font-size-text-md);
}

.product-price-block {
    margin-top: 18px;
    padding: 14px 0;
    border-top: 1px solid var(--color-border-strong);
    border-bottom: 1px solid var(--color-border-strong);
}

.product-price-block p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-price-block strong {
    display: block;
    margin-top: 6px;
    color: var(--color-accent);
    font-size: var(--font-size-section-title);
    line-height: 0.95;
    font-weight: var(--font-weight-bold);
}

.product-buy-panel {
    margin-top: 16px;
    padding-top: 0;
}

.product-buy-top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: end;
}

.product-qty-row {
    display: grid;
    gap: 10px;
}

.product-qty-row p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-qty-box {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    border: 1px solid var(--color-border-strong);
    background-color: var(--color-bg-control);
    height: 48px;
}

.product-qty-box button,
.product-qty-input {
    min-width: 48px;
    height: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.product-qty-box button {
    border: 0;
    background: transparent;
    color: var(--color-text-primary);
    font: inherit;
    font-size: var(--font-size-text-md);
}

.product-qty-input {
    min-width: 64px;
    border: 0;
    background: transparent;
    color: var(--color-text-primary);
    font: inherit;
    font-size: var(--font-size-text-md);
    text-align: center;
    padding: 0 8px;
    appearance: textfield;
    -moz-appearance: textfield;
}

.product-qty-input::-webkit-outer-spin-button,
.product-qty-input::-webkit-inner-spin-button {
    appearance: none;
    margin: 0;
}

.product-qty-input:focus {
    outline: 0;
}

.product-qty-box button {
    cursor: pointer;
    color: var(--color-text-secondary);
}

.product-total-line {
    display: grid;
    gap: 6px;
    justify-items: end;
}

.product-total-label {
    color: var(--color-text-primary);
    font-size: var(--font-size-text-lg);
}

.product-total-value {
    color: var(--color-accent);
    font-size: var(--font-size-text-lg);
}

.product-cart-btn {
    width: 100%;
    margin-top: 12px;
    min-height: var(--size-button-height);
    font-size: var(--font-size-text-md);
    color: var(--color-text-primary);
}

.product-cart-btn img {
    width: var(--size-icon-lg);
    height: var(--size-icon-lg);
    object-fit: contain;
}

.product-cart-btn.is-adding {
    opacity: 0.82;
    cursor: wait;
}

.product-cart-btn.is-adding:disabled {
    border-color: var(--color-accent);
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

.product-cart-btn.is-adding:disabled img {
    opacity: 1;
}

.product-cart-btn.is-added {
    box-shadow: 0 0 0 1px rgba(246, 177, 41, 0.18), 0 10px 22px rgba(246, 177, 41, 0.12);
}

.product-cart-btn:disabled {
    border-color: var(--color-border-strong);
    background-color: var(--color-bg-control);
    color: var(--color-text-secondary);
    cursor: default;
}

.product-cart-btn:disabled img {
    opacity: 0.55;
}

.product-cart-form {
    margin: 0;
}

.product-note {
    margin: 10px 0 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
    text-align: center;
}

.product-service-row {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.product-service-card {
    border: 1px solid var(--color-border-strong);
    background-color: var(--color-bg-chrome);
    padding: 18px;
    display: grid;
    grid-template-columns: var(--size-icon-service-glyph) minmax(0, 1fr);
    align-items: center;
    gap: 16px;
}

.product-service-card-icon {
    width: var(--size-icon-service-glyph);
    height: var(--size-icon-service-glyph);
    object-fit: contain;
}

.product-service-card-body {
    display: grid;
    gap: 8px;
}

.product-service-card h3 {
    margin: 0;
    font-size: var(--font-size-text-lg);
}

.product-service-card p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-info-grid {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.product-info-card {
    border: 1px solid var(--color-border-strong);
    background-color: var(--color-bg-chrome);
    padding: var(--space-panel-lg);
}

.product-info-card h2 {
    margin: 0;
    font-size: var(--font-size-card-title);
    line-height: 1;
}

.product-spec-list {
    margin-top: 12px;
    display: grid;
}

.product-spec-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 0;
    border-bottom: 1px solid var(--color-border-strong);
}

.product-spec-row span {
    color: var(--color-text-secondary);
    font-size: var(--font-size-text-sm);
}

.product-spec-row strong {
    color: var(--color-text-primary);
    font-size: var(--font-size-text-sm);
    font-weight: 500;
    text-align: right;
}

.product-feature-list {
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: var(--space-3);
}

.product-feature-list li {
    position: relative;
    color: var(--color-text-primary);
    padding-left: 18px;
    font-size: var(--font-size-text-md);
    line-height: 1.35;
}

.product-feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
}

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

    .product-summary h1 {
        font-size: var(--font-size-section-title);
        line-height: var(--line-height-heading);
    }

    .product-price-block strong {
        font-size: var(--font-size-section-title);
    }
}

@media (max-width: 560px) {
    .product-breadcrumbs {
        font-size: var(--font-size-text-xs);
    }

    .product-back-link {
        margin-top: 10px;
        font-size: var(--font-size-text-xs);
    }

    .product-hero-grid {
        gap: 14px;
    }

    .product-thumb-row {
        gap: 8px;
        margin-top: 8px;
    }

    .product-gallery-nav {
        width: 44px;
        height: 44px;
    }

    .product-gallery-nav.is-prev {
        left: 8px;
    }

    .product-gallery-nav.is-next {
        right: 8px;
    }

    .product-gallery-nav::before {
        width: 10px;
        height: 10px;
    }

    .product-gallery-lightbox {
        padding: 12px;
    }

    .product-gallery-lightbox-dialog {
        max-height: calc(100vh - 24px);
        padding: 52px 14px 20px;
    }

    .product-gallery-lightbox-dialog img {
        max-height: calc(100vh - 120px);
    }

    .product-gallery-lightbox-close {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
    }

    .product-gallery-lightbox-close::before,
    .product-gallery-lightbox-close::after {
        width: 14px;
    }

    .product-summary h1 {
        font-size: var(--font-size-section-title);
        line-height: 1.4;
    }

    .product-subtitle {
        font-size: var(--font-size-text-lg);
        margin-top: 5px;
    }

    .product-rating-row {
        margin-top: 10px;
        font-size: var(--font-size-text-xs);
    }

    .product-price-block {
        margin-top: 10px;
        padding: 12px 0;
    }

    .product-price-block p {
        font-size: var(--font-size-text-xs);
    }

    .product-price-block strong {
        font-size: var(--font-size-section-title);
    }

    .product-buy-panel {
        margin-top: 10px;
        padding-top: 0;
    }

    .product-buy-top {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        align-items: end;
    }

    .product-qty-row,
    .product-total-line {
        min-width: 0;
    }

    .product-qty-row {
        width: 100%;
    }

    .product-qty-box {
        width: 100%;
        min-width: 0;
    }

    .product-qty-input {
        flex: 1 1 auto;
        width: 100%;
        min-width: 0;
    }

    .product-total-line {
        display: flex;
        align-items: baseline;
        justify-content: flex-start;
        gap: 8px;
        align-self: end;
        width: auto;
        margin-bottom: 11px;
        margin-left: 8px;
    }

    .product-total-label,
    .product-total-value {
        font-size: var(--font-size-text-lg);
    }

    .product-total-value {
        white-space: nowrap;
    }

    .product-cart-btn {
        margin: 10px 0 12px;
        min-height: 48px;
        font-size: var(--font-size-text-md);
    }

    .product-service-row {
        margin: 12px 0;
        gap: 8px;
    }

    .product-service-card {
        padding: 9px;
    }

    .product-service-card {
        gap: 10px;
    }

    .product-service-card-icon {
        width: 32px;
        height: 32px;
    }

    .product-service-card h3 {
        font-size: var(--font-size-text-sm);
    }

    .product-service-card p {
        font-size: var(--font-size-text-xs);
    }

    .product-info-grid {
        margin-top: 12px;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .product-info-card {
        padding: 20px;
    }

    .product-info-card h2 {
        font-size: var(--font-size-card-title);
    }

    .product-spec-row {
        display: grid;
        grid-template-columns: 90px minmax(0, 1fr);
        align-items: start;
        gap: 12px;
        padding: 14px 0;
    }

    .product-spec-row span,
    .product-spec-row strong {
        font-size: var(--font-size-text-xs);
    }

    .product-spec-row strong {
        text-align: right;
    }

    .product-feature-list {
        gap: 0;
    }

    .product-feature-list li {
        padding: 14px 0 14px 18px;
        font-size: var(--font-size-text-md);
        line-height: 1.45;
    }

    .product-feature-list li::before {
        top: 20px;
    }
}