body {
    font-family: Arial, sans-serif;
}

#chat-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

#messages {
    height: 400px;
    overflow-y: auto;
    border: 1px solid #ccc;
    padding: 10px;
}

.message {
    margin: 10px;
    padding: 10px;
    border-radius: 10px;
}

.user {
    background: lightblue;
    text-align: right;
}

.bot {
    background: lightgreen;
    text-align: left;
}

#controls {
    text-align: center;
    margin-top: 10px;
}