body {
    font-family: Arial, sans-serif;
    background: #111;
    color: #fff;
    text-align: center;
}

#gameCanvas {
    background: #222;
    border: 2px solid #fff;
    display: block;
    margin: auto;
}

#controls {
    margin: 10px;
}

#chat-container, #leaderboard {
    width: 300px;
    margin: auto;
    margin-top: 10px;
}

#chat-box, #leaderboard-box {
    background: #333;
    padding: 5px;
    height: 150px;
    overflow-y: auto;
    border: 1px solid #fff;
    margin-bottom: 10px;
}