.categories { padding: 60px 0 100px; background: var(--color-white); }
.categories .section-head { margin-bottom: 32px; }
.categories .section-head__lead { color: var(--color-black-soft); }

.categories__list { display: flex; flex-direction: column; gap: 12px; }

.cat-item { border-bottom: 1px solid var(--color-grey-light-2); }

.cat-item__head {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 20px 0;
    text-align: left;
    color: var(--color-black);
}
.cat-item__title {
    font-size: 22px; line-height: 30px; font-weight: 600;
}
.cat-item__icon {
    flex: 0 0 42px;
    width: 42px; height: 42px;
    color: var(--color-blue);
    display: inline-flex; align-items: center; justify-content: center;
    transition: transform .25s ease;
}
.cat-item.is-open .cat-item__icon-v { display: none; }

.cat-item__body {
    padding: 8px 0 40px;
}
.cat-item__lead {
    font-size: 16px; line-height: 26px;
    color: var(--color-black-soft);
    max-width: 1080px;
    margin: 0 0 32px;
}
.cat-item__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
}
.cat-item__grid .course-card {
    background: var(--color-grey-light-1);
}

@media (max-width: 991px) {
    .categories { padding: 48px 0 64px; }
    .cat-item__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
}

@media (max-width: 767px) {
    .categories { padding: 32px 0 48px; background: var(--color-grey-light-1); }
    .cat-item__grid .course-card { background: var(--color-white); }
    .cat-item__head { padding: 16px 0; gap: 16px; }
    .cat-item__title { font-size: 18px; line-height: 26px; }
    .cat-item__icon { flex-basis: 32px; width: 32px; height: 32px; }
    .cat-item__body { padding-bottom: 32px; }
    .cat-item__grid { grid-template-columns: 1fr; gap: 20px; }
}