/* Snow FX — ultra léger */
#snowfx{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 20;          /* ajuste si besoin */
  opacity: .85;         /* global */
}
@media (prefers-reduced-motion: reduce){
  #snowfx{ display:none; }
}