body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: radial-gradient(circle, #0a0a0a, #1f1f1f);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.game-container {
    text-align: center;
}

canvas {
    background-color: #111;
    border: 2px solid #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px #ff0000, 0 0 40px #ff5500, 0 0 60px #ffaa00;
}

.controls {
    margin-top: 10px;
}

button {
    background: #222;
    color: #fff;
    border: 1px solid #fff;
    padding: 8px 12px;
    margin: 5px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 0 10px #ff0000;
    transition: 0.2s;
}

button:hover {
    background: #ff0000;
    box-shadow: 0 0 20px #ff6600, 0 0 40px #ffaa00;
}

#score {
    font-size: 20px;
    margin-top: 10px;
    text-shadow: 0 0 5px #ff0000, 0 0 10px #ff5500;
}