*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;overflow:hidden}#container{width:100vw;height:100dvh;position:relative;overflow:hidden}#control{position:fixed;display:flex;gap:12px;z-index:10}#control button{padding:12px 18px;border:none;border-radius:8px;font-size:16px;background:#000000b3;color:#fff;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);cursor:pointer;transition:.2s ease}#control button:hover{background:#000000e6}#control{bottom:20px;left:50%;transform:translate(-50%)}@media(min-width:768px){#control{top:20px;bottom:auto;left:50%;transform:translate(-50%)}}@media(min-width:1200px){#control{top:20px;left:20px;transform:none}}