html,body{background:#000;height:100%;margin:0;padding:0;overflow:hidden}#app{position:fixed;inset:0}canvas{touch-action:none;display:block}*{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}.boot-error{color:#f55;-webkit-user-select:text;user-select:text;padding:16px;font:14px monospace}html,body{overscroll-behavior:none;-webkit-tap-highlight-color:transparent;touch-action:none}