:root {
  --text: #22201c;
  --text-secondary: #68625a;
  --background: #ffffff;
  --border: #e3ddd2;
  --primary: #0346ad;
  --font-sans: system-ui, -apple-system, "SF Pro Text", "Helvetica Neue", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --text: #f2efea;
    --text-secondary: #ada79e;
    --background: #131210;
    --border: #34312c;
    --primary: #8aaef2;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 400 17px/1.55 var(--font-sans);
  -webkit-text-size-adjust: 100%;
}
main { max-width: 640px; margin: 0 auto; padding: 32px 16px 64px; }
header { margin-bottom: 32px; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
h1 { font-size: 28px; line-height: 34px; margin: 24px 0 4px; }
h2 { font-size: 20px; line-height: 25px; margin: 32px 0 8px; }
p, ul { margin: 0 0 12px; }
ul { padding-left: 20px; }
li { margin-bottom: 6px; }
a { color: var(--primary); }
.meta { color: var(--text-secondary); font-size: 15px; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--text-secondary); font-size: 14px; }
footer a { color: var(--text-secondary); }