/* Make the top-level entries in the left navigation sidebar stand out — bold and
   a larger font — so the section headings (Setup / Operating / Reference) and the
   top-level pages read as clear headings, with their sub-pages nested beneath. */
.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav__link {
  font-weight: 700;
  font-size: 0.82rem;   /* default nav links are ~0.7rem */
  line-height: 1.5;
}

/* Section group labels (Setup / Operating / Reference) in the same bold/larger
   style, and use the full-strength foreground colour so they don't look dimmed. */
.md-nav--primary > .md-nav__list > .md-nav__item--section > .md-nav__link {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--md-default-fg-color);
}