*{margin:0;padding:0;box-sizing:border-box;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}body{background:#0a1628;overflow-x:hidden;overflow-y:auto;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;display:flex;flex-direction:column;justify-content:flex-start;align-items:center;min-height:100vh;width:100vw}#gameContainer{position:relative;width:100%;height:100vh;min-height:100vh;flex-shrink:0;max-width:480px;background:#001a33;overflow:hidden}canvas{display:block;width:100%;height:100%}#ui{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}#startScreen,#gameOverScreen{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#000a1eeb;pointer-events:all;z-index:20}#gameOverScreen{display:none}h1{color:#00d4ff;font-size:2.5rem;text-shadow:0 0 20px rgba(0,212,255,.5);margin-bottom:10px;text-align:center}.subtitle{color:#8cf;font-size:1rem;margin-bottom:30px;text-align:center;padding:0 20px}.btn{background:linear-gradient(135deg,#06c,#09f);color:#fff;border:none;padding:15px 50px;font-size:1.3rem;border-radius:30px;cursor:pointer;pointer-events:all;box-shadow:0 4px 15px #0096ff66;transition:transform .1s;margin:10px}.btn:active{transform:scale(.95)}#hud{position:absolute;top:10px;left:10px;right:10px;display:flex;justify-content:space-between;color:#fff;font-size:.9rem;text-shadow:0 2px 4px rgba(0,0,0,.8)}.hud-item{background:#00000080;padding:5px 12px;border-radius:15px;border:1px solid rgba(255,255,255,.2)}#position{color:gold;font-weight:700}#speed{color:#0f8}#controls{position:absolute;bottom:0;left:0;width:100%;height:35%;display:flex;pointer-events:all;z-index:5}.control-zone{flex:1;display:flex;justify-content:center;align-items:center;font-size:2rem;opacity:.15;transition:opacity .1s}.control-zone.active{opacity:.4;background:#ffffff1a}#leftZone{color:#f66}#paddleZone{color:#6f6}#rightZone{color:#66f}.control-label{font-size:.8rem;text-align:center;color:#fff;pointer-events:none}#minimap{position:absolute;top:60px;right:10px;width:80px;height:120px;background:#0009;border:1px solid rgba(255,255,255,.3);border-radius:5px;pointer-events:none}#leaderboard{position:absolute;top:60px;left:10px;background:#0009;border:1px solid rgba(255,255,255,.3);border-radius:5px;padding:8px;color:#fff;font-size:.75rem;pointer-events:none;min-width:100px}.leader-row{display:flex;justify-content:space-between;margin:2px 0}.leader-row.you{color:#0f8;font-weight:700}#instructions{color:#aaa;font-size:.85rem;text-align:center;line-height:1.6;padding:0 30px;margin-top:20px}.hidden{display:none!important}.back-home{position:absolute;top:20px;left:20px;color:#fff;text-decoration:none;z-index:1000;background:#00000080;padding:8px 16px;border-radius:20px;font-size:.9rem;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);font-family:sans-serif}