:root {
  --bg: #ffffff;
  --fg: #1a1c1e;
  --muted: #5c6166;
  --accent: #0b7285;
  --rule: #e3e6e8;
  --card: #f6f8f9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16191c;
    --fg: #e8eaed;
    --muted: #a2a9b0;
    --accent: #4dd0e1;
    --rule: #2a2f34;
    --card: #1e2226;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 46rem; margin: 0 auto; }
header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2rem;
}
h1 { font-size: 2rem; margin: 0 0 .35rem; letter-spacing: -.02em; }
h2 { font-size: 1.2rem; margin: 2.25rem 0 .6rem; letter-spacing: -.01em; }
h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
p, li { color: var(--fg); }
.lede { color: var(--muted); font-size: 1.05rem; margin: 0; }
.updated { color: var(--muted); font-size: .875rem; margin-top: .5rem; }
a { color: var(--accent); }
nav { margin-top: 1.25rem; font-size: .95rem; }
nav a { margin-right: 1.25rem; }
ul { padding-left: 1.25rem; }
li { margin: .3rem 0; }
.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: .6rem;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .9rem;
}
code {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: .25rem;
  padding: .1rem .35rem;
  font-size: .9em;
}

/* Logo — the wordmark ships in light-ink and dark-ink variants; <picture>
   downloads only the one matching the viewer's theme. */
.wordmark { margin: 0 0 .9rem; }
.wordmark img {
  width: 280px;
  max-width: 75%;
  height: auto;
  display: block;
}
.sitelogo {
  display: inline-block;
  margin-bottom: 1.1rem;
}
.sitelogo img {
  width: 160px;
  max-width: 48%;
  height: auto;
  display: block;
}