body {
    margin: 0;
    overflow: hidden;
    background: black;
    font-family: Arial, sans-serif;
}

#score {
    position: fixed;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 24px;
    font-family: monospace;
    z-index: 10;
}

#gameOver {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    display: none;
    z-index: 20;
}

#gameOver h1 {
    font-size: 48px;
    margin: 0 0 10px 0;
}

#gameOver p {
    font-size: 20px;
}

#restartButton {
    padding: 10px 22px;
    border: none;
    border-radius: 6px;
    background: white;
    color: black;
    font-size: 16px;
    cursor: pointer;
}

#restartButton:hover {
    background: #dddddd;
}