.winter-scene{position:fixed;top:0;left:0;width:100%;height:100vh;background:linear-gradient(180deg,#1a2535,#2c3e50);overflow:hidden}.snowflake,.winter-scene{z-index:-1;pointer-events:none}.snowflake{position:absolute;will-change:transform,opacity;transition:opacity .3s ease-out}.snowflake-inner{width:100%;height:100%;background:hsla(0,0%,100%,.95);border-radius:50%;filter:blur(1.5px);animation:twinkle 8s ease-in-out infinite;box-shadow:0 0 5px hsla(0,0%,100%,.8),0 0 10px hsla(0,0%,100%,.4)}@keyframes twinkle{0%,to{transform:scale(.9)}50%{transform:scale(1.1)}}