body {
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #00111a, #002233);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Arial', sans-serif;
    color: #fff;
}

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

canvas {
    border: 2px solid #fff;
    border-radius: 10px;
    background: radial-gradient(circle at center, #00111a, #003366);
    cursor: crosshair;
}

.controls {
    margin-top: 10px;
}

.controls button, .controls input {
    margin: 5px;
    padding: 8px 12px;
    border-radius: 5px;
    border: none;
    font-size: 16px;
    cursor: pointer;
}

.controls button:hover {
    background-color: #00ccff;
    color: #00111a;
}