.star {
	position: fixed;
	border-radius: 50%;
	pointer-events: none;
	z-index: 10;
	will-change: opacity, transform;
}

@keyframes twinkle {
	0%, 100% { opacity: 0.6; transform: scale(1); }
	50%      { opacity: 1;   transform: scale(1.3); }
}