.toc {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 0.5rem var(--card-padding);
}

.toc__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.75rem 0;
  color: var(--heading);
  font-weight: 700;
  font-size: 1.05rem;
}

.toc__arrow {
  transition: transform var(--transition);
  color: var(--accent-light);
  font-size: 0.8rem;
}

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

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 0 1rem;
}

.toc__list[hidden] {
  display: none;
}

.toc__item a {
  display: block;
  padding: 0.5rem 0.5rem;
  color: var(--text);
  border-radius: var(--radius);
  border-left: 3px solid transparent;
  transition: color var(--transition), background-color var(--transition),
    border-color var(--transition);
}

.toc__item a:hover,
.toc__item a:focus-visible {
  color: var(--heading);
  background: rgba(255, 211, 41, 0.06);
  border-left-color: var(--accent-light);
}