.spotlight {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  background: radial-gradient(
    450px circle at var(--x) var(--y),
    rgba(168, 85, 247, 0.3),
    transparent 40%
  );
}

.spotlight-card:hover .spotlight {
  opacity: 1;
}