@scope (htmlpress-nav) {
  :scope {
    --chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    display: block;
    min-width: 0;
  }
  nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }
  ul {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }
  li + li {
    margin-top: 0;
  }
  [data-label] {
    display: flex;
    align-items: center;
    height: 2rem;
    margin: 0.5rem 0 -0.25rem;
    padding: 0 0.5rem;
    color: color-mix(in oklab, var(--htmlpress-text) 70%, transparent);
    font: 500 0.75rem/1rem var(--htmlpress-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  ul[data-links] + [data-label],
  [data-label]:has(+ ul[data-links]) {
    margin-top: 1.5rem;
  }
  a > svg,
  summary > svg {
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
  }
  /* The section picker: shown on a phone, and wider only when a section sits in the
     sidebar; a header section is listed only where the header has no room for it */
  [data-sections]:not(:has([data-position="sidebar"])) {
    display: none;
  }
  [data-sections] [data-position="header"] {
    display: none;
  }
  [data-sections]:has([data-position="sidebar"]) + [data-label] {
    margin-top: 1.25rem;
  }
  [data-sections] details {
    position: relative;
    margin-top: 0.25rem;
  }
  [data-sections] details > summary {
    height: 2.25rem;
    padding: 0 0.75rem;
    border: 1px solid var(--htmlpress-border);
    border-radius: 999px;
    color: var(--htmlpress-text);
    font-weight: 400;
  }
  [data-sections] details > summary > span {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  [data-sections] details > summary::after {
    position: static;
    width: 1rem;
    height: 1rem;
    color: var(--htmlpress-muted);
    mask-size: 1rem;
    rotate: 0deg;
  }
  [data-sections] details[open] > summary::after {
    rotate: 180deg;
  }
  [data-sections] details > ul {
    position: absolute;
    top: calc(100% + 0.25rem);
    right: 0;
    left: 0;
    z-index: 10;
    margin: 0;
    padding: 0.25rem;
    border: 1px solid var(--htmlpress-border);
    border-radius: 0.75rem;
    background: var(--htmlpress-bg);
    box-shadow:
      0 4px 6px -1px oklch(0 0 0 / 0.1),
      0 2px 4px -2px oklch(0 0 0 / 0.1);
    translate: none;
  }
  @media (max-width: 56rem) {
    [data-sections] + [data-label] {
      margin-top: 1.25rem;
    }
    [data-sections]:not(:has([data-position="sidebar"])),
    [data-sections] [data-position="header"] {
      display: block;
    }
  }
  /* A block, not a flex row: only a block's own text can end in Livemark's ellipsis */
  a {
    display: block;
    height: 2rem;
    overflow: hidden;
    padding: 0 0.75rem;
    border: 0 solid transparent;
    border-radius: 1rem;
    color: var(--htmlpress-text);
    line-height: 2rem;
    text-decoration: none;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  a > svg {
    margin-right: 0.5rem;
    vertical-align: -0.1875rem;
  }
  /* A color, not opacity: text under opacity loses subpixel antialiasing and reads blurred */
  a:not([aria-current="page"]) {
    color: color-mix(in srgb, var(--htmlpress-text) 75%, var(--htmlpress-surface));
  }
  a:hover,
  summary:not(:has(> a)):hover {
    background: color-mix(in oklab, var(--htmlpress-text) 4%, transparent);
  }
  a[data-untranslated] small {
    margin-left: 0.375rem;
    padding: 0 0.25rem;
    border: 1px solid var(--htmlpress-border);
    border-radius: 0.25rem;
    color: var(--htmlpress-muted);
    font-family: var(--htmlpress-mono);
    font-size: 0.625rem;
    text-transform: uppercase;
    vertical-align: 0.0625rem;
  }
  a[aria-current="page"] {
    border-width: 1px;
    line-height: calc(2rem - 2px);
    border-color: color-mix(in oklab, var(--htmlpress-accent) 20%, transparent);
    background: color-mix(in oklab, var(--htmlpress-accent) 2%, transparent);
    color: var(--htmlpress-accent);
    font-weight: 500;
  }
  :root[data-theme="dark"] :scope a[aria-current="page"] {
    background: color-mix(in oklab, var(--htmlpress-accent) 5%, transparent);
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) :scope a[aria-current="page"] {
      background: color-mix(in oklab, var(--htmlpress-accent) 5%, transparent);
    }
  }
  a[aria-current="page"] > svg {
    stroke-width: 2.5;
  }
  details {
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }
  summary {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 2rem;
    margin: 0;
    padding: 0 0.75rem;
    border-radius: 1rem;
    color: inherit;
    font-size: inherit;
    font-weight: 400;
    list-style: none;
    cursor: pointer;
  }
  summary:has(> a) {
    padding: 0;
  }
  summary > a {
    flex: 1;
    min-width: 0;
    padding-right: 2rem;
  }
  /* A blog's recent posts and a changelog's releases: in Livemark a fixed heading, faded
     like the rows around it, with no chevron to fold it */
  li > details > summary {
    color: color-mix(in srgb, var(--htmlpress-text) 75%, var(--htmlpress-surface));
    pointer-events: none;
  }
  li > details > summary::after {
    display: none;
  }
  summary::-webkit-details-marker {
    display: none;
  }
  summary::after {
    content: "";
    position: absolute;
    top: 0.375rem;
    right: 0.25rem;
    width: 1.375rem;
    height: 1.25rem;
    border-radius: 0.5rem;
    background: currentColor;
    mask: var(--chevron) center / 0.875rem no-repeat;
    rotate: -90deg;
    transition: rotate 0.15s;
  }
  li > details {
    margin: 0;
  }
  details[open] > summary {
    margin-bottom: 0;
  }
  details[open] > summary::after {
    rotate: 0deg;
  }
  details ul {
    margin: 0 0.875rem;
    padding: 0.125rem 0.625rem;
    border-left: 1px solid var(--htmlpress-border);
    translate: 1px;
  }
  details ul a {
    height: 1.75rem;
    line-height: 1.75rem;
    translate: -1px;
  }
  details ul a[aria-current="page"] {
    line-height: calc(1.75rem - 2px);
  }
}