body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #70c5ce;
}

#game-container {
    position: relative;
}

#gameCanvas {
    background-color: #4ec0ca;
    border: 2px solid #000;
}

#start-screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.8);
}

#startButton {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}