.sitemap {
    display: grid;
    gap: 5px;
}

@media (min-width: 640px) {
    .sitemap {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .sitemap {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1280px) {
    .sitemap {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}