:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --fg: #1a1a1a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #eaeaea;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  max-width: 40rem;
  margin: 4rem auto;
  padding: 0 1.5rem;
  text-align: center;
}

h1 {
  font-size: 2rem;
}