:root {
  color-scheme: light;
  --bg: #f7f7f5;
  --ink: #1a1a1a;
  --muted: #5c5c5c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 4rem 1.25rem;
}
h1 { font-weight: 600; letter-spacing: -0.02em; }
p { color: var(--muted); line-height: 1.5; }