.menu-section-toggle + ul {
  display: none;
}

.open > ul {
  display: block;
}

.open .ti-chevron-down {
  transform: rotate(180deg);
  transition: transform 0.2s ease;
}

.menu-item--collapsed > ul {
  display: none;
}

.menu-item--collapsed.open > ul {
  display: block;
}