.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.ambient-light {
  position: absolute;
  width: 900px;
  height: 900px;

  background: radial-gradient(
    circle,
    rgba(150,130,255,0.20) 0%,
    rgba(150,130,255,0.12) 20%,
    rgba(150,130,255,0.06) 40%,
    rgba(0,0,0,0) 70%
  );

  filter: blur(70px);
  transform: translate(-50%, -50%);
  transition: opacity 0.25s ease;
  opacity: 0.25;
}