@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; }
  body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure, pre { margin: 0; }
  ul, ol { padding: 0; list-style: none; }
  table { border-collapse: collapse; border-spacing: 0; }
  th, td { padding: 0; text-align: left; font-weight: inherit; }
  button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
  button { background: none; border: 0; padding: 0; cursor: pointer; text-align: inherit; }
  input { background: transparent; border: 0; }
  summary { cursor: pointer; }
  dialog { color: inherit; border: 0; padding: 0; max-width: none; max-height: none; }
  img { max-width: 100%; }
}

@layer base {
  /* a cross-document fade between pages, where the browser has it */
  @view-transition { navigation: auto; }
  ::view-transition-old(root), ::view-transition-new(root) { animation-duration: 120ms; }
  @media (prefers-reduced-motion: reduce) {
    @view-transition { navigation: none; }
  }

  html { background: var(--bg-canvas); scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
  body {
    min-height: 100dvh;
    display: flex; flex-direction: column;
    font: var(--fs) / var(--lh) var(--font);
    color: var(--ink);
    background: var(--bg-canvas);
    tab-size: 4;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, h4 { font-family: var(--mono); font-weight: 700; color: var(--ink-hi); letter-spacing: -.01em; }
  h1 { font-size: 22px; line-height: 30px; }
  h2 { font-size: 17px; line-height: 26px; }
  h3, h4 { font-size: var(--fs); }
  b, strong { font-weight: 700; }
  small { font-size: var(--fs-s); }
  code, pre, kbd, samp { font-family: var(--mono); }
  a { color: inherit; text-decoration: underline; text-decoration-color: var(--border-strong); text-underline-offset: 3px; }
  a:hover { text-decoration-color: currentColor; color: var(--ink-hi); }
  hr { border: 0; border-top: 1px solid var(--border); margin: var(--s5) 0; }
  ::selection { background: var(--ink-hi); color: var(--on-ink); }

  :focus { outline: none; }
  :focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 3px; }

  [hidden] { display: none !important; }

  kbd {
    display: inline-block; min-width: 20px; padding: 0 5px;
    font: 600 var(--fs-xs) / 18px var(--mono); text-align: center; color: var(--ink-dim);
    background: var(--bg-canvas); border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 4px;
  }

  .skip {
    position: absolute; left: var(--s2); top: var(--s2); z-index: 30; padding: var(--s1) var(--s3);
    background: var(--ink-hi); color: var(--on-ink); border-radius: var(--r-s);
    transform: translateY(-200%);
  }
  .skip:focus { transform: none; }

  main { min-width: 0; }
  main:focus-visible { outline: none; }

  @media (prefers-reduced-motion: no-preference) {
    a, button, tr, li, summary, .btn { transition: background-color 100ms ease, border-color 100ms ease, color 100ms ease; }
  }
}

@layer utilities {
  /* what does nothing without scripts waits for ermite.js, which sets html.js */
  html:not(.js) [data-js], html:not(.js) .filter { display: none; }
  .dim { color: var(--ink-dim); }
  .mute { color: var(--ink-mute); }
  .nowrap { white-space: nowrap; }
  .num { text-align: right; font-variant-numeric: tabular-nums; }
  .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .rule { border-top: 1px solid var(--border); }
}