.sidebar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.3em;
  height: 1.3em;
  border-radius: 3px;
  font-size: 0.7em;
  font-weight: 700;
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1;
  margin-right: 0.4em;
  flex-shrink: 0;
  color: #fff;
}

.sidebar-icon-M { background: #4caf50; }
.sidebar-icon-F { background: #7c4dff; }
.sidebar-icon-I { background: #7b1fa2; }
.sidebar-icon-E { background: #f9a825; color: #333; }
.sidebar-icon-T { background: #e91e63; }
.sidebar-icon-C { background: #ff7043; }

.sidebar-icon + span {
  overflow: hidden;
  text-overflow: ellipsis;
}

.toctree-l1 > a:has(.sidebar-icon),
.toctree-l2 > a:has(.sidebar-icon),
.toctree-l3 > a:has(.sidebar-icon) {
  display: flex;
  align-items: center;
}