body {
    margin: 0;
    font-family: 'Courier New', Courier, monospace;
    background-color: #222;
    color: #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#game-container {
    position: relative;
    border: 5px solid #333;
}

#gameCanvas {
    background-color: #000;
    display: block;
}

#ui {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 1.5em;
    font-weight: bold;
    color: #fff;
}

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

#game-over-screen {
    display: none; /* Hidden by default */
}

h1 {
    font-size: 4em;
    color: #4CAF50;
    margin: 0;
}

p {
    font-size: 1.2em;
    margin: 20px;
}

button {
    padding: 10px 20px;
    font-size: 1.2em;
    background-color: #4CAF50;
    color: white;
    border: 2px solid #fff;
    cursor: pointer;
}