/* Collapsible chapter button, matched to neighboring navigation links. */
.md-nav--primary .dfir-nav-toggle {
  appearance: none;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  text-align: start;
  cursor: pointer;
}
.md-nav--primary .dfir-nav-toggle:focus-visible {
  outline: 2px solid var(--cr-accent);
  outline-offset: 3px;
}