:root {
  color-scheme: light dark;
  --fg: #111;
  --bg: #fafafa;
  --muted: #555;
  --accent: #b91c1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #f5f5f5;
    --bg: #0b0b0b;
    --muted: #aaa;
    --accent: #f87171;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: 0 0 0.25rem;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.tagline {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0;
}

.nowrap {
  white-space: nowrap;
}

.lede {
  margin: 1.25rem 0 0;
  font-size: 1rem;
  max-width: 60ch;
}

section {
  margin-top: 3rem;
}

section + section {
  padding-top: 0.5rem;
  border-top: 1px solid rgba(127, 127, 127, 0.12);
}

h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

section p {
  margin: 0 0 0.75rem;
  max-width: 65ch;
}

section p + pre,
section pre + p,
section pre + pre {
  margin-top: 0.75rem;
}

pre {
  background: rgba(127, 127, 127, 0.1);
  padding: 0.75rem 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 0;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.95rem;
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

ul {
  padding-left: 1.25rem;
}

footer {
  margin-top: 4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--accent);
}

.footnote {
  margin-top: 0.25rem;
  font-size: 0.8rem;
  opacity: 0.75;
}