.cards {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
    list-style: none;
    padding: 0;
    margin: 0;
}

@media (min-width: 30rem) {
    .cards[data-maximum-columns="2"],
    .cards[data-maximum-columns="3"] {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 62rem) {
    .cards[data-maximum-columns="3"] {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}