/* Stylesheet of the rendered docs pages, same tokens as docs.html. Served from this origin, so the CSP needs no inline style. */
  :root {
    color-scheme: light dark;
    --h-bg: #fff; --h-fg: #000; --h-muted: #444; --h-faint: #595959;
    --h-link: #000; --h-border: #767676; --h-accent: #000;
    --h-btn-bg: #000; --h-btn-fg: #fff; --h-btn-hover: #333;
    --h-surface: #f5f5f5; --h-line: #ddd; --h-hl: #eee;
    --h-warn: #000; --h-err: #000; --h-ok: #000;
    --h-font-heading: ui-rounded, "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
    --h-mono: ui-monospace, Menlo, Consolas, monospace;
  }
  @media (prefers-color-scheme: dark) {
    :root {
      --h-bg: #000; --h-fg: #fff; --h-muted: #d4d4d4; --h-faint: #b3b3b3;
      --h-link: #fff; --h-border: #666; --h-accent: #fff;
      --h-btn-bg: #fff; --h-btn-fg: #000; --h-btn-hover: #ccc;
      --h-surface: #111; --h-line: #2a2a2a; --h-hl: #1f1f1f;
      --h-warn: #fff; --h-err: #fff; --h-ok: #fff;
    }
  }
  * { box-sizing: border-box; }
  body {
    margin: 0; min-height: 100vh; display: flex; flex-direction: column;
    font: 15px/1.7 ui-sans-serif, system-ui, sans-serif;
    background: var(--h-bg); color: var(--h-muted);
  }
  a { color: var(--h-link); text-decoration: underline; text-underline-offset: 3px; }
  a:hover { color: var(--h-fg); }
  :focus-visible { outline: 2px solid var(--h-link); outline-offset: 3px; border-radius: 4px; }
  header {
    padding: 18px 24px; display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  }
  header a { color: var(--h-faint); text-decoration: none; font-size: 14px; }
  header a:hover { color: var(--h-fg); }
  header a.here { color: var(--h-fg); font-weight: 700; }
  header a.home { color: var(--h-fg); }
  header h1 { font: 800 22px/1.1 var(--h-font-heading); margin: 0; }
  header .spacer { margin-left: auto; }
  main { flex: 1; width: 100%; margin: 0 auto; padding: 24px 24px 64px; }
  h2, h3, h4 { color: var(--h-fg); font-family: var(--h-font-heading); }
  p { margin: 0 0 12px; }
  code { background: var(--h-surface); border: 1px solid var(--h-line); padding: 0 7px; border-radius: 999px; font: 12.5px var(--h-mono); color: var(--h-fg); }
  footer { padding: 18px 24px 30px; font-size: 12px; color: var(--h-faint); display: flex; gap: 6px 18px; flex-wrap: wrap; justify-content: center; align-items: center; }
  footer a { color: var(--h-faint); text-decoration: none; }
  footer a:hover { color: var(--h-fg); }
  [hidden] { display: none !important; }
  main { max-width: 1000px; }
  h3 { font-size: 22px; font-weight: 800; margin: 44px 0 14px; }
  h4 { font-size: 16px; font-weight: 700; margin: 0 0 4px; }
  ul, ol { margin: 0 0 14px; padding-left: 22px; }
  li { margin-bottom: 5px; }
  table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 14px; }
  th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--h-line); }
  th { color: var(--h-faint); font-weight: 700; text-transform: uppercase; font-size: 11px; letter-spacing: .05em; }
  tr:last-child td { border-bottom: 0; }
  .small { font-size: 13px; color: var(--h-faint); margin-top: 0; }
  .subnav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; }
  .subnav a { text-decoration: none; border: 1px solid var(--h-border); border-radius: 999px; padding: 3px 14px; font-size: 13.5px; color: var(--h-link); }
  .subnav a:hover, .subnav a:focus-visible, .subnav a[aria-current="page"] { background: var(--h-btn-bg); border-color: var(--h-btn-bg); color: var(--h-btn-fg); }
  .subnav a[aria-current="page"] { font-weight: 700; }
  .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 12px 0 8px; }
  .card { display: block; background: var(--h-surface); border: 1px solid var(--h-line); border-radius: 28px; padding: 20px 24px; text-decoration: none; color: var(--h-muted); }
  .card:hover, .card:focus-visible { border-color: var(--h-fg); color: var(--h-muted); }
  .card h4 { font-size: 18px; margin: 0 0 6px; }
  .card p { margin: 0; font-size: 14px; }

  /* Rendered Markdown pages (web/docs-site.mjs, #450) */
  .docs-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 32px; margin-top: 18px; }
  .docs-nav { font-size: 14px; align-self: start; position: sticky; top: 12px; }
  .docs-nav h2 { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--h-faint); margin: 18px 0 6px; }
  .docs-nav h2:first-child { margin-top: 0; }
  .docs-nav ul { list-style: none; padding: 0; margin: 0; }
  .docs-nav li { margin: 0; }
  .docs-nav a { display: block; padding: 3px 10px; border-radius: 10px; text-decoration: none; color: var(--h-muted); }
  .docs-nav a:hover { color: var(--h-fg); }
  .docs-nav a[aria-current="page"] { background: var(--h-btn-bg); color: var(--h-btn-fg); font-weight: 700; }
  /* Long lists are split by first character (#510): each letter folds open and shut. */
  .docs-nav details.letter { margin: 2px 0; }
  .docs-nav details.letter summary { cursor: pointer; list-style: none; padding: 3px 10px; color: var(--h-muted); border-radius: 10px; }
  .docs-nav details.letter summary::-webkit-details-marker { display: none; }
  .docs-nav details.letter summary::before { content: "\25B8"; display: inline-block; width: 1.1em; }
  .docs-nav details.letter[open] summary::before { content: "\25BE"; }
  .docs-nav details.letter summary:hover { color: var(--h-fg); }
  .docs-nav details.letter summary .count { color: var(--h-faint); font-size: 12px; margin-left: 4px; }
  .docs-nav details.letter ul { padding-left: 12px; }
  article { min-width: 0; }
  article h1 { font: 800 clamp(28px, 4vw, 40px)/1.15 var(--h-font-heading); margin: 0 0 8px; color: var(--h-fg); }
  article h2 { font-size: 24px; margin: 38px 0 12px; }
  article h3 { font-size: 19px; margin: 30px 0 10px; }
  article h4 { margin: 22px 0 6px; }
  article .meta { font-size: 13px; color: var(--h-faint); margin: 0 0 22px; }
  article blockquote { margin: 0 0 14px; padding: 2px 18px; border-left: 3px solid var(--h-line); }
  article img { max-width: 100%; }
  .table-wrap { overflow-x: auto; margin: 0 0 18px; }
  .table-wrap table { margin: 0; }
  .table-filter { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 0 0 8px; font-size: 14px; }
  .table-filter input { font: inherit; padding: 6px 14px; min-width: min(320px, 100%); border: 1px solid var(--h-border); border-radius: 999px; background: var(--h-bg); color: var(--h-fg); }
  .table-filter [data-filter-count] { color: var(--h-faint); font-size: 13px; }
  footer .source { flex-basis: 100%; text-align: center; margin: 0; font-family: var(--h-mono); }
  @media (max-width: 760px) { .docs-layout { grid-template-columns: minmax(0, 1fr); } .docs-nav { position: static; } }

  /* Viewer panel on the format pages (#503): drawn by docs-site.mjs viewerPanel, made
     interactive by docs-viewer.js. Without JavaScript only the list shows. */
  .viewer-panel { position: relative; margin: 26px 0 8px; padding: 16px 22px 20px; border: 1px solid var(--h-line); border-radius: 22px; background: var(--h-surface); }
  .viewer-panel h2 { margin: 0 0 6px; }
  .viewer-note { font-size: 14px; margin: 0 0 12px; }
  .viewer-samples { list-style: none; padding: 0; margin: 0; }
  .viewer-samples li { margin: 0 0 8px; }
  .viewer-meta { color: var(--h-faint); font-size: 13px; }
  .viewer-switch { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 10px; }
  .viewer-pick { font: inherit; font-size: 13.5px; line-height: 1.7; background: none; color: var(--h-link); border: 1px solid var(--h-border); border-radius: 999px; padding: 3px 14px; cursor: pointer; }
  .viewer-pick:hover { border-color: var(--h-fg); }
  .viewer-pick[aria-pressed="true"] { background: var(--h-btn-bg); border-color: var(--h-btn-bg); color: var(--h-btn-fg); font-weight: 700; }
  .viewer-caption { font-size: 13px; color: var(--h-faint); margin: 0 0 10px; }
  .viewer-caption strong { color: var(--h-fg); }
  .viewer-probe { position: absolute; visibility: hidden; pointer-events: none; margin: 0; }
  /* A fixed height: the file, the frame and the caption can change without moving the page. */
  .viewer-stage { position: relative; height: clamp(300px, 56vh, 520px); border: 1px solid var(--h-line); border-radius: 14px; overflow: hidden; background: var(--h-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 16px; text-align: center; }
  .viewer-load { font: inherit; font-weight: 700; background: var(--h-btn-bg); color: var(--h-btn-fg); border: 0; border-radius: 999px; padding: 10px 22px; cursor: pointer; max-width: 100%; }
  .viewer-load:hover { background: var(--h-btn-hover); }
  .viewer-hint { margin: 0; font-size: 13px; color: var(--h-faint); }
  .viewer-frame { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: var(--h-bg); }
  @media (max-width: 760px) { .viewer-panel { padding: 14px 14px 16px; border-radius: 16px; } .viewer-stage { height: clamp(280px, 62vh, 460px); } }