/* ==========================================
   COLLAPSIBLE ARCHIVES
   ========================================== */

.taxonomy__collapsible {
  margin: 1.2em 0;
  border-bottom: 1px solid rgba(127, 127, 127, 0.35);
}

/* Clickable heading */

.taxonomy__summary {
  display: flex;
  align-items: center;
  gap: 0.8em;

  padding: 0.65em 0;
  margin: 0;

  cursor: pointer;
  list-style: none;
  user-select: none;
}

.taxonomy__summary::-webkit-details-marker {
  display: none;
}

.taxonomy__summary::marker {
  content: "";
}

/* Expand/collapse arrow */

.taxonomy__summary::before {
  content: "▸";
  display: inline-block;
  flex: 0 0 1em;
  transition: transform 0.2s ease;
}

.taxonomy__collapsible[open] > .taxonomy__summary::before {
  transform: rotate(90deg);
}

/* Name and post count */

.taxonomy__summary > span:first-of-type {
  flex: 1;
}

.taxonomy__summary .taxonomy__count {
  margin-left: auto;
  font-size: 0.75em;
  font-weight: normal;
  opacity: 0.7;
}

/* Expanded articles */

.taxonomy__content {
  padding: 0 0 1em 1.5em;
}

.taxonomy__summary:hover {
  opacity: 0.8;
}

.taxonomy__summary:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

/* Smooth visual transition */

.taxonomy__collapsible .entries-list,
.taxonomy__collapsible .entries-grid {
  margin-top: 0.5em;
}