/* Collapsible sidebar groups; loaded after shared typography. */
@media screen {
  :root { --sidebar: 300px; }
  .sidebar {
    padding: 12px 10px 16px;
    background: #fff;
    scrollbar-width: thin;
    scrollbar-color: #d8d2e9 transparent;
    overscroll-behavior: contain;
  }
  .sidebar-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 8px 8px;
  }
  .sidebar .sidebar-heading h2 {
    margin: 3px 0 0;
    font-size: 17px;
    font-weight: 700;
    color: #111;
  }
  .sidebar .sidebar-heading .sidebar-eyebrow { display: none; }
  .sidebar-fold-all {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    flex: none;
    padding: 8px;
    border: 0;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
  }
  .sidebar-fold-all svg { width: 20px; height: 20px; }
  .sidebar-fold-all.is-expanded svg { transform: rotate(180deg); }
  .sidebar .nav { gap: 3px; }
  .sidebar .nav-group { border: 0; background: transparent; }
  .sidebar .nav-group[open] { background: transparent; }
  .sidebar .nav-group > summary {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 8px 10px;
    border-radius: 6px;
    list-style: none;
    cursor: pointer;
    user-select: none;
    transition: background 0.16s ease;
  }
  .sidebar .nav-group > summary::-webkit-details-marker { display: none; }
  .sidebar .nav-group > summary .nav-section-title {
    flex: 1;
    margin: 0;
    letter-spacing: 0;
    font-weight: 500;
    line-height: 1.5;
  }
  .sidebar .sidebar-group-icon { width: 18px; height: 18px; color: #62576b; }
  .sidebar-chevron {
    flex: none;
    width: 13px;
    height: 13px;
    transform: rotate(90deg);
    transition: transform 0.16s ease;
  }
  .nav-group[open] > summary .sidebar-chevron { transform: rotate(270deg); }
  .sidebar .nav-group.has-active > summary { background: transparent; }
  .sidebar .nav-group-items {
    display: grid;
    gap: 0;
    margin: 0 5px 7px 19px;
    padding: 0 0 0 12px;
    border-left: 1px solid #e9e1eb;
  }
  .sidebar .nav-group:not([open]) > .nav-group-items { display: none; }
  .sidebar .nav-item {
    gap: 10px;
    min-height: 42px;
    padding: 8px 10px;
    border-radius: 6px;
    font-weight: 500;
    transform: none;
  }
  .sidebar .nav-group-items .nav-item {
    min-height: 38px;
    padding: 7px 10px;
  }
  .sidebar .nav-group-items .nav-icon { display: none; }
  .sidebar .nav-text {
    overflow-wrap: normal;
    word-break: normal;
    line-height: 1.55;
  }
  .sidebar .nav-item .nav-icon { width: 19px; height: 19px; color: #544c69; }
  .sidebar .nav-item.active {
    background: var(--brand-soft);
    font-weight: 600;
    box-shadow: none;
  }
  .sidebar .nav-item.active::before { display: none; }
  .sidebar .nav-item.active .nav-text { color: var(--brand) !important; }
  .sidebar .nav-item.active .nav-icon { color: var(--brand); }
  .sidebar .nav-item:hover,
  .sidebar .nav-group > summary:hover,
  .sidebar .sidebar-fold-all:hover { background: var(--brand-pale); }
  .sidebar :is(button, summary):focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
  }
  @media (max-width: 860px) {
    .sidebar { width: min(300px, calc(100vw - 36px)); }
  }
  @media (prefers-reduced-motion: reduce) {
    .sidebar, .sidebar-chevron, .sidebar .nav-group > summary { transition: none; }
  }
}