*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:#000;font-family:Segoe UI,system-ui,sans-serif;color:#fff;user-select:none;-webkit-user-select:none;touch-action:none}#game-container{position:relative;width:100%;height:100%}#game-canvas{display:block;width:100%;height:100%}#ui-overlay{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:10}#ui-overlay>*{pointer-events:auto}