body {
    background-color: #f8f9fa;
    font-family: Arial, sans-serif;
}

.login-container, .chat-container {
    max-width: 500px;
    margin: 60px auto;
    padding: 30px;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 10px;
}

#chat-box {
    height: 300px;
    overflow-y: auto;
    border: 1px solid #ccc;
    padding: 10px;
    background: #e9ecef;
    border-radius: 5px;
    margin-bottom: 10px;
}

#chat-box p {
    margin: 5px 0;
}

#chat-box strong {
    color: #007bff;
}

form input[type="text"] {
    width: 80%;
    padding: 8px;
}

form button {
    padding: 8px 16px;
}