@media (max-width: 1150px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .main-nav {
        display: none;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .market-layout {
        grid-template-columns: 1fr;
    }

    .filters-panel {
        position: static;
    }

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

    .detail-price-box {
        grid-template-columns: 1fr;
    }

    .trust-grid {
        grid-template-columns: 1fr;
    }

    .section-head {
        display: block;
    }
}

@media (max-width: 640px) {
    .site-header {
        padding: 13px;
    }

    .nav-whatsapp {
        font-size: 12px;
        padding: 10px 12px;
    }

    .hero {
        padding-top: 70px;
    }

    .search-shell {
        flex-direction: column;
    }

    .search-shell button {
        height: 54px;
    }

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

    .category-card {
        min-width: 250px;
    }

    .filter-row {
        flex-direction: column;
    }

    .hero p {
        font-size: 17px;
    }

    h1 {
        letter-spacing: -2px;
    }

    .detail-copy {
        padding: 24px;
    }

    .card-actions {
        grid-template-columns: 1fr 1fr;
    }
}