/**
 * Side menu language (and future) expand/collapse panels — height transition only.
 * Scoped so other .expand-collapse-container usages (e.g. sitemap) are unchanged.
 */
.side-menu-expand-collapse-container .expand-collapse-container {
  overflow: hidden;
  height: 0;
  box-sizing: border-box;
  transition: height 0.35s ease;
}