:root { color-scheme: light dark; }
body {
  margin: 0;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #fafafa;
  color: #151515;
}
main { max-width: 46rem; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
h1 { font-size: 2rem; line-height: 1.1; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 .25rem; }
address { font-style: normal; }
a { color: inherit; text-underline-offset: .2em; }
.meta { color: #555; font-size: .9rem; margin-top: 2rem; }
@media (prefers-color-scheme: dark) {
  body { background: #0b0b0b; color: #f2f2f2; }
  .meta { color: #b5b5b5; }
}