*{margin:0;padding:0;box-sizing:border-box}body{background:#0a0a1a;color:#fff;font-family:Segoe UI,system-ui,sans-serif;overflow:hidden;touch-action:manipulation}#root{position:relative;width:100vw;height:100vh}#game-stage{position:absolute;inset:0;overflow:hidden}#game-stage canvas{display:block;position:absolute;top:0;left:0}#game-ui{position:absolute;inset:0;z-index:10;pointer-events:none}#loading-screen{position:fixed;inset:0;z-index:1000;background:#000;transition:opacity .3s ease}#loading-screen.is-hidden{opacity:0;pointer-events:none}