html, body {
    background: transparent !important;
    margin: 0; padding: 0; overflow: hidden;
  }
  canvas#space-bg {
    position: fixed; inset: 0; z-index: -1;
    width
    : 100vw; height: 100vh; pointer-events: none;
  }

  form .signup-hint {
    margin-top: 1rem;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
  }

  form .signup-hint a {
    color: #97b8ff;
    text-decoration: underline;
  }