:root {
  color-scheme: light;

  --sh-raw-paper: #f8f3ec;
  --sh-raw-paper-raised: #fffdf8;
  --sh-raw-ink: #2a1c14;
  --sh-raw-ink-soft: #6f5a4b;
  --sh-raw-line: #e0d2c0;
  --sh-raw-route: #b4451f;
  --sh-raw-panel: #efe4d5;

  --sh-role-canvas: var(--sh-raw-paper);
  --sh-role-surface: var(--sh-raw-paper-raised);
  --sh-role-text: var(--sh-raw-ink);
  --sh-role-text-muted: var(--sh-raw-ink-soft);
  --sh-role-border: var(--sh-raw-line);
  --sh-role-route: var(--sh-raw-route);
  --sh-role-panel: var(--sh-raw-panel);
  --sh-role-focus: var(--sh-raw-route);

  --sh-space-1: 8px;
  --sh-space-2: 12px;
  --sh-space-3: 16px;
  --sh-space-4: 24px;
  --sh-space-5: 32px;
  --sh-space-6: 48px;
  --sh-space-7: 72px;

  --sh-page-gutter: clamp(16px, 4vw, 56px);
  --sh-mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--sh-role-text);
  background:
    radial-gradient(var(--sh-role-border) 1.5px, transparent 1.6px) 0 0 / 26px 26px,
    var(--sh-role-canvas);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--sh-role-route); }

a:focus-visible {
  outline: 3px solid var(--sh-role-focus);
  outline-offset: 3px;
}

.shell {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--sh-page-gutter);
}

.site-header {
  border-bottom: 1px solid var(--sh-role-border);
  background: var(--sh-role-surface);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sh-space-4);
  min-height: 72px;
}

.wordmark {
  font-family: var(--sh-mono);
  font-size: 15px;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--sh-role-text);
}

.wordmark .version {
  color: var(--sh-role-text-muted);
  margin-left: var(--sh-space-1);
}

.nav-back {
  font-family: var(--sh-mono);
  font-size: 13px;
  text-decoration: none;
}

.nav-back:hover { text-decoration: underline; }

main { padding: var(--sh-space-7) 0 var(--sh-space-7); }

.doc-label {
  font-family: var(--sh-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sh-role-text-muted);
  margin: 0 0 var(--sh-space-2);
}

h1 {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 0 0 var(--sh-space-3);
}

.lede {
  font-size: 19px;
  color: var(--sh-role-text-muted);
  margin: 0 0 var(--sh-space-6);
}

h2 {
  font-size: clamp(21px, 2.6vw, 26px);
  line-height: 1.25;
  letter-spacing: -.01em;
  margin: var(--sh-space-6) 0 var(--sh-space-3);
  padding-top: var(--sh-space-4);
  border-top: 1px solid var(--sh-role-border);
}

h3 {
  font-size: 18px;
  margin: var(--sh-space-5) 0 var(--sh-space-2);
}

p, li { margin: 0 0 var(--sh-space-3); }

ul, ol { padding-left: var(--sh-space-4); }

code {
  font-family: var(--sh-mono);
  font-size: .9em;
  background: var(--sh-role-panel);
  padding: 2px 5px;
  border-radius: 4px;
}

.callout {
  background: var(--sh-role-surface);
  border: 1px solid var(--sh-role-border);
  border-left: 3px solid var(--sh-role-route);
  border-radius: 8px;
  padding: var(--sh-space-4);
  margin: var(--sh-space-4) 0;
}

.callout > :last-child { margin-bottom: 0; }

.meta {
  font-family: var(--sh-mono);
  font-size: 13px;
  color: var(--sh-role-text-muted);
  margin-bottom: var(--sh-space-6);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--sh-space-3) 0 var(--sh-space-4);
  font-size: 15px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: var(--sh-space-2);
  border-bottom: 1px solid var(--sh-role-border);
}

th {
  font-family: var(--sh-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--sh-role-text-muted);
}

footer {
  border-top: 1px solid var(--sh-role-border);
  background: var(--sh-role-surface);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sh-space-3);
  min-height: 96px;
  padding-top: var(--sh-space-4);
  padding-bottom: var(--sh-space-4);
  color: var(--sh-role-text-muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sh-space-3);
}

.footer-inner p { margin: 0; }

@media (max-width: 640px) {
  main { padding: var(--sh-space-6) 0; }
  .nav { min-height: 64px; }
}