:root { color-scheme: light dark; }
body {
  margin: 0; min-height: 100vh; display: grid; place-items: center;
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: #0b0d12; color: #e6e9ef;
}
main { width: min(560px, 90vw); padding: 2.5rem 0; }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); margin: 0 0 .6rem; letter-spacing: -.02em; }
p { color: #9aa3b2; }
a { color: #3b82f6; }
code { background: #151922; padding: .15em .4em; border-radius: .3em; color: #e6e9ef; }