.toc__part-title {
  display: block;
  margin: 2em 0 0 0;
  padding: 0.5em 0 0 0;
  border-top: 0.1rem solid rgb(var(--color-text));
}

.toc__chapters {
  margin: 0;
  padding: 0;
  list-style-type: none;
}

.toc__chapter {
  margin: 1em 0 1em 0;
  padding: 0 3em 0 0;
}

.toc__chapter-number {
  margin: 3em 0 0 0;
  text-transform: uppercase;
  letter-spacing: 0.3rem;
  font-size: var(--type-xx-small);
}

.toc__chapter-number + .toc__chapter-title {
  margin: 0;
}

.toc__chapter-title {
  margin: 2em 0 0 0;
}

.toc__sections {
  margin: 0.5em 0 0 0;
  padding: 0 0 0 0.5em;
  list-style-type: none;
  border-left: 0.1rem solid rgb(var(--color-link));
}

.toc__section {
  font-size: var(--type-small);
  font-style: italic;
}