body {
    margin: 0;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
    background-color: #000;
    color: white;
}

.game-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    position: relative;
}

canvas {
    background: radial-gradient(circle, rgba(0,0,20,1) 0%, rgba(0,0,40,1) 100%);
    border: 2px solid white;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

#gameOverlay {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#startBtn {
    background-color: #2196F3;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#startBtn:hover {
    background-color: #1976D2;
}

#scoreBoard {
    margin-top: 20px;
    font-size: 24px;
}

h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: yellow;
}