body {
    font-family: Arial, sans-serif;
    background-color: #222;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#chat-container {
    width: 300px;
    border: 1px solid #444;
    padding: 10px;
    background-color: #333;
    border-radius: 8px;
}

#messages {
    height: 300px;
    overflow-y: auto;
    margin-bottom: 10px;
    border-bottom: 1px solid #444;
    padding: 5px;
}

#message-input {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    background-color: #444;
    color: white;
    border: 1px solid #555;
    border-radius: 4px;
}

#send-btn {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    border: none;
    color: white;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

#send-btn:hover {
    background-color: #218838;
}

.message {
    margin-bottom: 10px;
}

.message span {
    color: #28a745;
}