*{margin:0;padding:0}canvas{display:block}#nav-buttons{z-index:10;gap:20px;display:flex;position:fixed;bottom:40px;left:50%;transform:translate(-50%)}#nav-buttons button{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border:none;border-radius:50%;width:60px;height:60px;font-size:24px}