.toc {
  background: var(--color-bg-dark);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  margin-block-end: var(--space-section);
}

.toc__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 1.0625rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-heading-gold);
}

.toc__arrow {
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-accent-yellow);
}

.toc__toggle[aria-expanded="true"] .toc__arrow {
  transform: rotate(180deg);
}

.toc__nav {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
}

.toc__nav.is-open {
  max-height: 60rem;
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-block-start: 1rem;
}

.toc__list a {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  padding-block: 0.25rem;
}

.toc__list a:hover {
  color: var(--color-accent-yellow);
}