html,body{
  height:100%;
  margin:0;
  background:#0b0b0b;
  color:#f3f3f3;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
h1{
  font-size:clamp(2rem,10vw,5rem);
  letter-spacing:0.15em;
  text-transform:uppercase;
  text-align:center;
}