/* Add vertical spacing around top-level collapsed section titles */
.md-nav__item--nested > .md-nav__link {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Target only the root-level list items in the primary navigation tree */
.md-nav--primary > .md-nav__list > .md-nav__item {
  margin-top: 2.5rem;
}

/* Ensure the very first item (usually 'Home' or 'Index') stays aligned at the top */
.md-nav--primary > .md-nav__list > .md-nav__item:first-child {
  margin-top: 0;
}