:root {
  --core-900: #0D0F12;
  --surface-800: #171A1F;
  --ember: #FF5A36;
  --ember-deep: #D94325;
  --ion-blue: #4D8DFF;
  --canvas: #F6F6F3;
  --surface: #FFFFFF;
  --ink: #111318;
  --ink-secondary: #5B6270;
  --rule: #E4E2DC;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: 720px;
  margin: 0 auto;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.wordmark .dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--ember);
  transform: rotate(18deg);
}

.nav-links a {
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-left: 20px;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ember-deep);
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 8px 24px 96px;
}

.doc-header {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 32px;
}

.doc-header .eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ember-deep);
  margin-bottom: 10px;
}

.doc-header h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.doc-header .updated {
  color: var(--ink-secondary);
  font-size: 14px;
}

h2 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 40px 0 12px;
  padding-top: 4px;
}

h1 + p,
h2 + p { margin-top: 0; }

p, li {
  font-size: 15.5px;
  color: var(--ink);
}

p { margin: 0 0 14px; }

ul, ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

li { margin-bottom: 6px; }

strong { font-weight: 600; }

a {
  color: var(--ion-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(77,141,255,0.35);
}

a:hover, a:focus-visible {
  border-bottom-color: var(--ion-blue);
}

code {
  background: rgba(0,0,0,0.05);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0;
}

footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  color: var(--ink-secondary);
  font-size: 13px;
  border-top: 1px solid var(--rule);
}

footer a { color: var(--ink-secondary); border-bottom: 1px solid var(--rule); }

@media (max-width: 480px) {
  .doc-header h1 { font-size: 26px; }
  .nav-links a { margin-left: 14px; font-size: 13px; }
}