:root { --bg:#0f1115; --fg:#e8e8ea; --accent:#4ea1ff; }
* { box-sizing:border-box; margin:0; padding:0; }
body {
  min-height:100vh; display:grid; place-items:center;
  background:var(--bg); color:var(--fg);
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
}
main { text-align:center; padding:2rem; }
h1 { font-size:clamp(2.5rem,8vw,5rem); letter-spacing:-.03em; color:var(--accent); }
p  { margin-top:1rem; opacity:.7; }