/* Scroll containers keep long file and shared-space lists inside their panels. */
#fileList,
#spaceList {
  max-height: clamp(360px, 60vh, 680px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
#fileList:focus,
#spaceList:focus {
  outline: 3px solid rgba(23, 75, 61, .12);
  outline-offset: -3px;
}
#fileList .empty,
#spaceList .empty {
  min-height: 280px;
}
@media (max-height: 700px) {
  #fileList,
  #spaceList { max-height: 52vh; }
}
@media (max-width: 560px) {
  #fileList,
  #spaceList { max-height: 58vh; }
}