mdbook-sidebar-accordion {
  display: contents;
}

.chapter-details > summary {
  cursor: pointer;
}

.chapter-details > summary::marker {
  color: var(--sidebar-fg);
}

.chapter-details > summary .chapter-link-wrapper {
  display: inline-flex;
}

.chapter li.chapter-item > .chapter-link-wrapper.sidebar-numbered {
  padding-inline-start: 1em;
}

.sidebar-headings {
  border-inline-start: 4px solid var(--sidebar-header-border-color);
  margin-inline-start: 4px;
  padding-inline-start: 12px;
}

.chapter .sidebar-heading {
  line-height: 1.5em;
  margin-block: 0.5em;
}

.chapter .sidebar-heading-3,
.chapter .sidebar-heading-4,
.chapter .sidebar-heading-5,
.chapter .sidebar-heading-6 {
  padding-inline-start: 12px;
}

.chapter .on-this-page {
  display: none;
}