* { box-sizing: border-box; }

body {
  max-width: 40em;
  margin: 4em auto;
  padding: 0 1em;
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  font-size: clamp(1rem, 0.9rem + 0.3vw, 1.15rem);
  line-height: 1.6;
  color: #1a1a1a;
  background: #fafafa;
  text-align: center;
}

h1 { font-size: 2em; }

p {
  font-size: 1.8em;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  body { color: #e8e8e8; background: #121212; }
}

@media (max-width: 480px) {
  body { margin: 1.5em auto; }
}