.warm-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity .3s ease;
}
.warm-cursor::before {
  content: '';
  position: absolute;
  width: 100px;
  height: 100px;
  left: -50px;
  top: -50px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,210,132,.30) 0%, rgba(246,194,102,.17) 25%, rgba(239,182,93,.07) 48%, transparent 72%);
}
.warm-cursor.is-visible { opacity: 1; }
@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .warm-cursor { display: none; }
}