nav details {
  margin-top: 0.5rem;
  margin-bottom: 0.25rem;
}

nav details summary.category-header {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  padding: 0.5rem;
  margin: 0;
  border-radius: .375rem;
  color: var(--text-color);
  font-size: 0.875rem;
}

nav details summary.category-header::-webkit-details-marker {
  display: none;
}

nav details summary.category-header::before {
  content: "▶";
  display: inline-block;
  margin-right: 0.5rem;
  font-size: 0.6rem;
  transition: transform 0.2s;
}

nav details[open] summary.category-header::before {
  transform: rotate(90deg);
}

nav details summary.category-header:hover {
  background-color: rgb(243 244 246);
}

nav details a {
  padding-left: 1.5rem;
}

/* ElevenLabs Credits */

.elevenlabs-credits {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.625rem 0.75rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 0.75rem;
}

.elevenlabs-credits span:first-child {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-color, #9ca3af);
}

.elevenlabs-credits span:last-child {
  font-weight: 600;
  color: var(--text-color);
}