.post-directory-tree,
.post-directory-tree ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-directory-tree {
  margin: 0.5rem 0;
  font-size: 0.875rem;
}

.post-directory-tree ul ul {
  padding-left: 0.875rem;
}

.post-directory-tree li {
  min-width: 0;
}

.post-directory-tree .tree-folder-toggle,
.post-directory-tree .tree-post-link {
  box-sizing: border-box;
  width: 100%;
  min-height: 2rem;
  border: 0;
  border-radius: 4px;
  color: var(--text-p2);
  background: transparent;
  font: inherit;
  line-height: 1.35;
  text-align: left;
}

.post-directory-tree .tree-folder-toggle {
  display: grid;
  grid-template-columns: 0.75rem minmax(0, 1fr);
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.375rem;
  cursor: pointer;
}

.post-directory-tree .tree-post-link {
  display: block;
  padding: 0.375rem 0.375rem 0.375rem 1.375rem;
  text-decoration: none;
}

.post-directory-tree .tree-folder-toggle:hover,
.post-directory-tree .tree-folder-toggle:focus-visible,
.post-directory-tree .tree-post-link:hover,
.post-directory-tree .tree-post-link:focus-visible {
  color: var(--text-p0);
  background: var(--bg-a100);
  outline: none;
}

.post-directory-tree .tree-folder-label,
.post-directory-tree .tree-post-link {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.post-directory-tree .tree-chevron {
  width: 0;
  height: 0;
  border-top: 0.25rem solid transparent;
  border-bottom: 0.25rem solid transparent;
  border-left: 0.375rem solid currentColor;
  transform-origin: 35% 50%;
  transition: transform 0.15s ease;
}

.post-directory-tree .tree-folder-toggle[aria-expanded='true'] .tree-chevron {
  transform: rotate(90deg);
}

.post-directory-tree .tree-post-link[aria-current='page'] {
  color: var(--accent);
  background: var(--theme-a20);
  font-weight: 600;
}