.tocyaseomi-toc-wrap {
  width: 100%;
}

.tocyaseomi-toc-wrap--hidden {
  display: none !important;
}

.tocyaseomi-toc {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 14px;
}

/* Static title (old behavior) */
.tocyaseomi-toc__title {
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}

/* NEW: Collapsible header */
.tocyaseomi-toc__header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  border: 0;
  background: transparent;
  padding: 10px;
  border-radius: 10px;
}

.tocyaseomi-toc__header-title {
  font-weight: 700;
  line-height: 1.3;
}

.tocyaseomi-toc__toggle-icon {
  display: inline-block;
  transition: transform 0.2s ease;
}

/* Body collapse behavior */
.tocyaseomi-toc--collapsible .tocyaseomi-toc__body {
  display: none;
}

.tocyaseomi-toc--collapsible.is-open .tocyaseomi-toc__body {
  display: block;
}

.tocyaseomi-toc--collapsible.is-open .tocyaseomi-toc__toggle-icon {
  transform: rotate(180deg);
}

/* Default nested layout */
.tocyaseomi-toc__list,
.tocyaseomi-toc__sublist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tocyaseomi-toc__item {
  margin: 6px 0;
}

.tocyaseomi-toc__sublist {
  margin-top: 6px;
  padding-inline-start: 16px;
  border-inline-start: 2px solid rgba(0, 0, 0, 0.06);
}

.tocyaseomi-toc__link {
  text-decoration: none;
  display: inline-block;
  line-height: 1.5;
  opacity: 0.9;
}

.tocyaseomi-toc__link:hover {
  opacity: 1;
  text-decoration: underline;
}

.tocyaseomi-toc__link.is-active {
  font-weight: 700;
  opacity: 1;
}

/* Empty message */
.tocyaseomi-toc__empty {
  opacity: 0.8;
  padding: 6px 0;
}

/* Grouped side-by-side layout */
.tocyaseomi-toc--grouped .tocyaseomi-toc__groups {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__group {
  flex: 1 1 220px;
  min-width: 220px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__link--group {
  font-weight: 700;
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__group-children {
  margin-top: 8px;
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__group-list {
  list-style: none;
  margin: 0;
  padding: 0;
  padding-inline-start: 16px;
  border-inline-start: 2px solid rgba(0, 0, 0, 0.06);
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__group-item {
  margin: 6px 0;
}

.tocyaseomi-toc--grouped .tocyaseomi-toc__link--child {
  opacity: 0.9;
}