html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:#000;font-family:system-ui,sans-serif}#glcanvas{position:absolute;top:0;left:0;width:100vw;height:100vh;display:block}#controls{position:absolute;top:1rem;right:1rem;background:#ffffff1a;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:8px;padding:.5rem 1rem}select{background:#00000080;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:4px;padding:.25rem .5rem;font-size:1rem}select:focus{outline:none;border-color:#66b2ff}