.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
    padding: 24px 0 48px;
}

@media (max-width: 900px) {
    .product-detail {
        grid-template-columns: 1fr;
    }
}

.product-detail-breadcrumb {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.product-detail-breadcrumb a {
    color: #1b6f9d;
    text-decoration: none;
}

.product-detail-breadcrumb a:hover {
    text-decoration: underline;
}

.product-detail-gallery {
    position: sticky;
    top: 16px;
}

@media (max-width: 900px) {
    .product-detail-gallery {
        position: static;
        top: auto;
    }
}

.product-detail-main-img {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    display: block;
    background: #f5f5f5;
}

.product-detail-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.product-detail-thumbs button {
    padding: 0;
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background: none;
    opacity: 0.85;
    transition: border-color 0.2s, opacity 0.2s;
}

.product-detail-thumbs button:hover,
.product-detail-thumbs button.is-active {
    opacity: 1;
    border-color: #1b6f9d;
}

.product-detail-thumbs img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    display: block;
}

.product-detail-info h1 {
    margin: 0 0 8px;
    font-size: 1.75rem;
    line-height: 1.25;
}

.product-detail-category {
    display: inline-block;
    font-size: 13px;
    color: #1b6f9d;
    background: #eef4fb;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.product-detail-prices {
    margin: 16px 0;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 12px;
}

.product-detail-prices .price-was {
    text-decoration: line-through;
    color: #999;
    font-size: 16px;
}

.product-detail-prices .sale-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1b6f9d;
}

.product-detail-description {
    color: #444;
    line-height: 1.65;
    font-size: 15px;
    margin: 0 0 20px;
}

.product-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.product-detail-tags .tag {
    background: #eef4fb;
    color: #1b6f9d;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 12px;
}

.product-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.product-detail-actions .cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}