.site-navigation {
  margin-bottom: 2rem;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1rem;
}

.site-navigation > ul {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1rem 2rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-navigation summary {
  cursor: pointer;
}

.site-navigation details ul {
  padding-left: 1.25rem;
  margin: 0.5rem 0 0;
}

.site-navigation [aria-current="page"] {
  font-weight: bold;
}