body{
  font-family: futura, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(135deg, #0b1220 0%, #111827 50%, #0f172a 100%);
  color: #e5e7eb;
  margin: 0;
}
h1{
  text-align: center; 
  font-size: 44px;
  color:#000;
  margin: 18px 12px;
}