:root {
  --bg: #fbfbfa;
  --fg: #1d1d1f;
  --muted: #6b6b70;
  --rule: #e3e3e0;
  --link: #0a64d8;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --fg: #ececee;
    --muted: #9a9aa2;
    --rule: #2c2c30;
    --link: #6aa8ff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 16px 4rem;
}

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 0.25rem; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 0.5rem; }
p, ul { margin: 0 0 1rem; }
li { margin-bottom: 0.35rem; }
a { color: var(--link); }
code { font: 0.9em ui-monospace, SFMono-Regular, Menlo, monospace; }

.meta { color: var(--muted); margin-bottom: 2rem; }

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}