/* styles/sections/docs-sidebar.css
 * Docs navigation: the sticky sidebar from 900px and the drawer below it, the subcategory
 * disclosures and the drawer toggle. Ported from css/docs.css onto tokens. Links are 44px
 * rows. A collapsed subcategory is display: none so its links leave the tab order. */
@layer sections {
  .docs-sidebar {
    min-width: 0;
  }

  .docs-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-32);
  }

  .nav-category {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
  }

  .nav-category-title {
    margin: 0;
    padding: 0 var(--space-12);
    color: var(--ink-muted);
  }

  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .nav-list a {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: var(--space-10) var(--space-12);
    border-radius: var(--radius-sm);
    color: var(--ink-2);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.3;
    text-decoration: none;
    transition: background-color var(--dur-fast), color var(--dur-fast);
  }

  .nav-list a:hover {
    background: var(--paper);
    color: var(--ink);
  }

  .nav-list a:active {
    background: var(--mist);
  }

  .nav-list a[aria-current="page"] {
    background: var(--mist);
    color: var(--fern);
    font-weight: 600;
  }

  .nav-list a[aria-current="page"]::before {
    content: "";
    position: absolute;
    inset-block: var(--space-8);
    inset-inline-start: 0;
    width: 3px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: var(--fern);
  }

  .nav-subcategory-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    width: 100%;
    min-height: 44px;
    padding: var(--space-10) var(--space-12);
    border: 0;
    border-radius: var(--radius-sm);
    background: none;
    color: var(--ink-2);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    text-align: start;
    cursor: pointer;
    transition: background-color var(--dur-fast), color var(--dur-fast);
  }

  .nav-subcategory-toggle:hover {
    background: var(--paper);
    color: var(--ink);
  }

  .nav-subcategory-toggle .caret {
    flex-shrink: 0;
    transition: transform var(--dur-fast);
  }

  .nav-subcategory:not(.expanded) .nav-subcategory-toggle .caret {
    transform: rotate(-90deg);
  }

  .nav-subcategory:not(.expanded) .subcategory-list {
    display: none;
  }

  .nav-subcategory .subcategory-list {
    padding-inline-start: var(--space-16);
  }

  .sidebar-overlay {
    display: none;
  }

  .mobile-docs-toggle {
    position: fixed;
    right: var(--space-24);
    bottom: var(--space-24);
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border: 0;
    border-radius: 50%;
    background: var(--fern);
    color: var(--white);
    cursor: pointer;
    transition: background-color var(--dur-fast);
  }

  .mobile-docs-toggle:hover {
    background: var(--fern-hover);
  }

  .mobile-docs-toggle:active {
    background: var(--fern-pressed);
  }

  .mobile-docs-toggle svg {
    width: 24px;
    height: 24px;
  }

  /* Drawer below 900px. Closed, it is hidden so its links are not focusable. */
  @media (width < 900px) {
    .docs-sidebar {
      position: fixed;
      inset: var(--chrome-nav-h) auto 0 0;
      z-index: 95;
      width: min(320px, 88vw);
      padding: var(--space-24) var(--space-16);
      overflow-y: auto;
      background: var(--white);
      box-shadow: 0 0 0 1px var(--line-2);
      visibility: hidden;
      transform: translateX(-100%);
      transition: transform var(--dur-overlay) ease-out;
    }

    .docs-sidebar.open {
      visibility: visible;
      transform: none;
    }

    .sidebar-overlay {
      position: fixed;
      inset: var(--chrome-nav-h) 0 0;
      z-index: 94;
      display: block;
      background: var(--ink-30);
      visibility: hidden;
      opacity: 0;
      transition: opacity var(--dur-overlay) ease-out;
    }

    .sidebar-overlay.open {
      visibility: visible;
      opacity: 1;
    }
  }

  @media (min-width: 900px) {
    .docs-sidebar {
      position: sticky;
      top: calc(var(--chrome-nav-h) + var(--space-24));
      max-height: calc(100vh - var(--chrome-nav-h) - var(--space-48));
      overflow-y: auto;
      overscroll-behavior: contain;
      background:
        linear-gradient(var(--white) 30%, transparent) top / 100% 40px no-repeat local,
        linear-gradient(transparent, var(--white) 70%) bottom / 100% 40px no-repeat local,
        linear-gradient(var(--line), transparent) top / 100% 12px no-repeat scroll,
        linear-gradient(transparent, var(--line)) bottom / 100% 12px no-repeat scroll;
    }

    .mobile-docs-toggle {
      display: none;
    }
  }
}