body {
    font-family: Arial, sans-serif; 
    margin: 0;
    padding: 20px;
    background-color: #f8f8f8; 
    color: #333; 
}

.chat-container {
    max-width: 600px;
    margin: 30px auto;
    border: 1px solid #ddd;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    background-color: #fff; 
}

.chat-header {
    background-color: #eee;
    padding: 15px;
    border-bottom: 1px solid #ddd;
}

.chat-header h3 {
    margin: 0;
}

.chat-history {
    padding: 20px;
    height: 300px; 
    overflow-y: scroll; 
}

.input-area {
    padding: 15px;
    border-top: 1px solid #ddd;
}

#user-input {
    width: calc(100% - 80px); 
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-right: 5px;
}

#send-button {
    padding: 10px 20px;
    background-color: #0084ff;  
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}