.first-level-list {
    --items: 3;
    --gap: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px var(--gap);
    margin-bottom: 40px !important;
}

.first-level-list__item {
    display: inline-flex;
    width: calc((100% - (var(--items) - 1) * var(--gap)) / var(--items));
    margin: 0 !important;
}

@media(max-width: 767px) {
    .first-level-list__item {
        width: 100%;
    }
}