body {
    font-family: 'Courier New', monospace;
    background-color: #000;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

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

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 0 10px #ffff00;
}

#game-canvas {
    border: 2px solid #ffff00;
    background-color: #001100;
    box-shadow: 0 0 20px #ffff00;
    cursor: crosshair;
}

#score, #health {
    font-size: 1.2em;
    margin: 5px 0;
    color: #00ff00;
}

#instructions {
    font-size: 1em;
    margin-top: 10px;
    color: #cccccc;
}