*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;margin:0;font-family:Arial,sans-serif;overflow-x:hidden}.enhanced-snake-game{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);flex-direction:column;align-items:center;min-height:100vh;padding:20px;font-family:Arial,sans-serif;display:flex}.game-header{text-align:center;margin-bottom:20px}.game-header h1{text-shadow:2px 2px 4px #0000004d;margin:0 0 20px;font-size:2.5rem}.scores{flex-wrap:wrap;justify-content:center;gap:30px;display:flex}.score{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3;border-radius:10px;padding:10px 20px;font-size:1.1rem;font-weight:700}.game-container{margin:20px 0}.game-board{background:#000c;border:3px solid #fff;border-radius:10px;position:relative;overflow:hidden;box-shadow:0 10px 30px #0000004d}.snake-segment{border-radius:3px;position:absolute;box-shadow:0 0 5px #00000080}.snake1{background:linear-gradient(45deg,#4caf50,#45a049);border:1px solid #2e7d32}.snake2{background:linear-gradient(45deg,#f44336,#d32f2f);border:1px solid #c62828}.food{border-radius:50%;animation:1s infinite alternate pulse;position:absolute;box-shadow:0 0 10px #ff0c}.food1{background:linear-gradient(45deg,#ffeb3b,#ffc107);border:2px solid #ff9800}.food2{background:linear-gradient(45deg,#9c27b0,#7b1fa2);border:2px solid #6a1b9a}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.1)}}.start-screen,.game-over-screen{text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#000000e6;border:2px solid #fff;border-radius:15px;padding:30px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.start-screen h2,.game-over-screen h2{color:#4caf50;margin:0 0 20px;font-size:2rem}.start-screen p,.game-over-screen p{margin:10px 0;font-size:1.1rem}.start-button{color:#fff;cursor:pointer;background:linear-gradient(45deg,#4caf50,#45a049);border:none;border-radius:10px;margin-top:20px;padding:15px 30px;font-size:1.2rem;transition:all .3s;box-shadow:0 5px 15px #0000004d}.start-button:hover{transform:translateY(-2px);box-shadow:0 7px 20px #0006}.game-over-screen h2{color:#f44336}.game-instructions{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-align:center;background:#ffffff1a;border:1px solid #fff3;border-radius:15px;max-width:800px;margin-top:20px;padding:20px}.game-instructions h3{color:#4caf50;margin:0 0 20px;font-size:1.5rem}.controls{flex-wrap:wrap;justify-content:space-around;gap:20px;margin:20px 0;display:flex}.control-group{background:#ffffff1a;border:1px solid #fff3;border-radius:10px;padding:15px}.control-group h4{margin:0 0 10px;font-size:1.2rem}.keys{justify-content:center;gap:5px;display:flex}.key{color:#fff;text-align:center;background:#333;border-radius:5px;min-width:30px;padding:8px 12px;font-size:1.1rem;font-weight:700;box-shadow:0 2px 5px #0000004d}.game-instructions p{margin:20px 0 0;font-size:1.1rem;line-height:1.5}@media (max-width:768px){.game-header h1{font-size:2rem}.scores{flex-direction:column;gap:10px}.score{font-size:1rem}.controls{flex-direction:column;align-items:center}.game-instructions{margin:10px;padding:15px}}.App{min-height:100vh;margin:0;padding:0}