/**
 * toc.css — BEM: toc, toc__*
 */
.toc {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  margin-block: var(--space-section);
}

.toc__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1rem;
}

.toc__title {
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  font-size: 1rem;
}

.toc__arrow {
  color: var(--color-heading-gold);
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.toc--open .toc__arrow {
  transform: rotate(180deg);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium), margin-top var(--transition-fast);
}

.toc--open .toc__list {
  margin-top: 1rem;
  max-height: 40rem;
}

.toc__link {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-text);
  padding-block: 0.125rem;
}

.toc__link:hover,
.toc__link:focus-visible {
  color: var(--color-heading-gold);
}