:root {
  color-scheme: light dark;
  --ground: #f4f5f7;
  --surface: #fafbfc;
  --ink: #112044;
  --ink-soft: #33475e;
  --muted: #6e809b;
  --line: #dfe7f0;
  --brand: #2774f1;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0b131e; --surface: #121d2b; --ink: #e8eff7;
    --ink-soft: #c0cddc; --muted: #8698ac; --line: #22303f; --brand: #5fa0ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 42rem; margin: 0 auto; padding: 3.5rem 1.25rem 6rem; }
h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 .35rem; letter-spacing: -.02em; }
h2 { font-size: 1.15rem; margin: 2.4rem 0 .6rem; letter-spacing: -.01em; }
p, li { color: var(--ink-soft); }
.updated, .lede { color: var(--muted); margin-top: 0; }
.lede { font-size: 1.05rem; }
ul { padding-left: 1.15rem; }
li { margin: .35rem 0; }
a { color: var(--brand); text-underline-offset: 2px; }
nav { margin-bottom: 2.5rem; font-size: .9rem; }
nav a { margin-right: 1.1rem; }
footer {
  margin-top: 4rem; padding-top: 1.25rem; border-top: 1px solid var(--line);
  font-size: .85rem; color: var(--muted);
}
code { font-size: .9em; }