html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #0b0d1a;
}

body {
  background:
    radial-gradient(120% 70% at 50% -10%, #2a2f5e 0%, rgba(42, 47, 94, 0) 70%),
    linear-gradient(#12142a, #0b0d1a 75%);
}

canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}