.product-page {
    padding: 40px 0 var(--section-gap);
}

.product-layout {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-inline: var(--container-px);
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 40px;
}

.product-gallery__main,
.product-gallery__empty,
.product-summary {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
}

.product-gallery__main {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.product-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery__thumbs {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.product-gallery__thumb {
    width: 90px;
    height: 90px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid transparent;
    padding: 0;
    background: var(--color-card-bg);
}

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

.product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery__empty {
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    color: var(--color-text-muted);
    text-align: center;
}

.product-summary {
    padding: 32px;
}

.product-summary__brand {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    color: var(--color-accent);
    font-weight: var(--fw-semibold);
    margin-bottom: 12px;
}

.product-summary__title {
    font-size: 38px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.product-summary__price {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
}

.product-summary__price-current {
    font-size: 32px;
    font-weight: var(--fw-bold);
}

.product-summary__price-old {
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.product-summary__stock {
    font-weight: var(--fw-semibold);
    margin-bottom: 24px;
}

.in-stock {
    color: #1f7a43;
}

.out-of-stock {
    color: #b73232;
}

.product-summary__block {
    margin-top: 24px;
}

.product-summary__block h2 {
    font-size: 18px;
    margin-bottom: 12px;
}

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

.product-specs div {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

.product-specs dt {
    font-weight: var(--fw-semibold);
}

.product-summary__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.product-buy-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.product-buy-form__qty {
    width: 100px;
}

.product-related {
    margin-top: 52px;
}

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

@media (max-width: 640px) {
    .product-layout {
        padding-inline: 20px;
    }

    .product-summary__title {
        font-size: 30px;
    }

    .product-specs div {
        grid-template-columns: 1fr;
    }
}