:root {
  --ink: #2e2321;
  --muted: #6b605c;
  --paper: #ffffff;
  --koi: #e0901e;
  --pond: #3e82c8;
  --rule: #ece6e2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f3ece6;
    --muted: #b8aca6;
    --paper: #1c1918;
    --rule: #3a3431;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
header { text-align: center; margin-bottom: 32px; }
header img { width: 140px; height: auto; }
nav { margin-top: 8px; font-size: 15px; }
nav a { margin: 0 10px; }
h1 { font-size: 28px; margin: 8px 0 4px; }
h2 { font-size: 20px; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--rule); }
a { color: var(--pond); }
.muted { color: var(--muted); font-size: 15px; }
ul { padding-left: 22px; }
footer { margin-top: 48px; text-align: center; color: var(--muted); font-size: 14px; }