*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;font-family:Arial,sans-serif;display:flex;overflow:hidden}#gameContainer{text-align:center;position:relative}#gameCanvas{background:linear-gradient(#87ceeb 0%,#e0f7fa 100%);border:4px solid #fff;border-radius:10px;box-shadow:0 10px 30px #0000004d}#gameInfo{color:#fff;text-shadow:2px 2px 4px #0000004d;margin-bottom:15px;font-size:24px}#startScreen,#gameOverScreen{text-align:center;z-index:10;background:#fffffff2;border-radius:15px;padding:40px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 10px 40px #0000004d}#gameOverScreen{display:none}h1{color:#667eea;margin-bottom:20px;font-size:36px}.subtitle{color:#666;margin-bottom:20px}.btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:25px;margin-top:20px;padding:15px 40px;font-size:20px;transition:transform .2s;box-shadow:0 5px 15px #0003}.btn:hover{transform:scale(1.05)}.controls{color:#666;margin-top:20px;font-size:14px}#finalScore{color:#667eea;margin:15px 0;font-size:28px;font-weight:700}.hidden{display:none!important}#mobileControls{z-index:100;justify-content:space-between;padding:0 20px;display:none;position:absolute;bottom:20px;left:0;right:0}.control-btn{color:#fff;-webkit-user-select:none;user-select:none;touch-action:manipulation;cursor:pointer;background:#ffffff4d;border:3px solid #fff9;border-radius:50%;justify-content:center;align-items:center;width:70px;height:70px;font-size:30px;transition:all .1s;display:flex}.control-btn:active{background:#ffffff80;transform:scale(.95)}.control-group{gap:15px;display:flex}.direction-group{grid-template-rows:repeat(3,70px);grid-template-columns:repeat(3,70px);gap:5px;display:grid}.direction-group .control-btn:first-child{grid-area:1/2}.direction-group .control-btn:nth-child(2){grid-area:2/1}.direction-group .control-btn:nth-child(3){grid-area:2/3}.direction-group .control-btn:nth-child(4){grid-area:3/2}@media (width<=768px){#gameCanvas{width:100vw;max-width:100%;height:60vh}#gameInfo{padding:10px;font-size:18px}#mobileControls{display:flex}#startScreen,#gameOverScreen{width:90%;padding:20px}h1{font-size:28px}.controls{display:none}}