#pdf-chatbot-container {
    max-width: 500px;
    margin: 20px auto;
    border: 1px solid #ccc;
    padding: 15px;
    border-radius: 10px;
    background: #f9f9f9;
}
#chat-messages {
    height: 200px;
    overflow-y: auto;
    margin-bottom: 10px;
}
#chat-input {
    width: 75%;
    padding: 5px;
}
#chat-submit {
    padding: 5px 10px;
}