body{margin:0;padding:0;background-color:#050505;overflow:hidden;display:flex;justify-content:center;align-items:center;height:100vh;color:#fff;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}canvas{box-shadow:0 0 24px 4px #3d9eff2e}#ui-layer{position:absolute;bottom:30px;text-align:center;opacity:0;transition:opacity .5s;pointer-events:none;z-index:10}body:hover #ui-layer{opacity:1;pointer-events:auto}button{background:#00000080;border:1px solid white;color:#fff;padding:8px 20px;font-size:.8rem;cursor:pointer;text-transform:uppercase;letter-spacing:2px;transition:all .3s;border-radius:20px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}button:hover{background:#fff;color:#000;box-shadow:0 0 15px #fff}#flash-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#fff;opacity:0;pointer-events:none;z-index:5}