.table-of-contents {
  max-width: var(--content-width);
  margin-inline: auto;
  margin-bottom: 2rem;
  padding-block: 1rem;
  border-block: 1px solid var(--color-divider);
}

.table-of-contents summary {
  color: var(--color-heading);
  cursor: pointer;
  font-weight: 700;
}

.table-of-contents ol {
  counter-reset: toc;
  margin: 0;
  padding-inline-start: 0;
  list-style: none;
}

.table-of-contents ol ol {
  margin-block-start: 0.25rem;
  padding-inline-start: 1.5rem;
}

.table-of-contents details > ol {
  margin-block-start: 0.5rem;
}

.table-of-contents li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  column-gap: 0.5rem;
  counter-increment: toc;
}

.table-of-contents li::before {
  content: counters(toc, ".") ". ";
  color: var(--color-text-muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table-of-contents li > ol {
  grid-column: 1 / -1;
}