.scroll-btn{position:fixed;right:30px;width:45px;height:45px;background-color:rgba(255, 255, 255, 0.1);backdrop-filter:blur(8px);border:1px solid rgba(255, 255, 255, 0.2);color:#fff;cursor:pointer;z-index:9999;display:none;align-items:center;justify-content:center;font-size:20px;transition:background-color 0.3s;border-radius:50%;}#scroll-up{bottom:80px;}#scroll-down{bottom:30px;}.scroll-btn:hover{background-color:rgba(255, 255, 255, 0.3);}