body{margin:0;overflow:hidden;background-color:#000;font-family:Courier New,Courier,monospace}#app{width:100vw;height:100vh}#hud{position:absolute;bottom:20px;left:20px;width:300px;color:#0ff;font-size:24px;pointer-events:none;text-shadow:0 0 5px #00ffff;z-index:10}#speed{font-size:48px;font-weight:700}#coins{font-size:36px;color:gold;text-shadow:0 0 10px #ffd700;margin-bottom:5px;font-weight:700}#boost-container{width:100%;height:20px;background-color:#222;border:2px solid #fff;margin-top:10px;transform:skew(-20deg)}#boost-bar{width:0%;height:100%;background-color:#f05;box-shadow:0 0 10px #f05;transition:width .1s}#controls{margin-top:10px;font-size:16px;opacity:.7}#controls:after{content:"\aPress Space to Boost/Fly!";white-space:pre}#start-screen{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#000c;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;z-index:20}#start-screen h1{font-size:80px;color:#f05;text-shadow:0 0 20px #ff0055;margin-bottom:10px;font-style:italic}#start-screen p{font-size:20px;color:#0ff;margin-bottom:40px;text-shadow:0 0 10px #00ffff}#start-btn{padding:20px 60px;font-size:30px;background:transparent;color:#fff;border:4px solid #fff;cursor:pointer;font-family:Courier New,Courier,monospace;font-weight:700;transition:all .3s}#start-btn:hover{background:#fff;color:#000;box-shadow:0 0 30px #fff}