.app-sub-sidebar li.active > a {
  color: #42b983;
  color: var(--theme-color, #42b983);
  font-weight: 600;
}

/* Remove default hyphens from all sub-sidebar items */
.app-sub-sidebar li::before {
  content: none;
}

/* Indent and style H3 items in the sub-sidebar */
.app-sub-sidebar .app-sub-sidebar {
  padding-left: 16px;
}

.app-sub-sidebar .app-sub-sidebar a {
  font-size: 0.85em;
  color: #777;
}

/* Make H3 headings smaller and visually distinct from H2 in content */
.markdown-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 1.5rem;
}

.markdown-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  border-bottom: 1px solid #eee;
  padding-bottom: 0.3rem;
}