/* Decorative atmosphere: never a gesture target or a scrolling layer. */
body { isolation: isolate; }
.space-particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  user-select: none;
  opacity: .65;
  contain: strict;
}
@media (prefers-reduced-motion: reduce) {
  .space-particles { display: none; }
}