body {
    font-family: Arial, sans-serif;
    background-color: #333; /* Dark background color */
    margin: 0;
    padding: 0;
    color: #fff; /* Light text color */
}

#chat-container {
    width: 80%;
    max-width: 600px;
    margin: 20px auto;
    background-color: #444; /* Darker background color */
    border-radius: 5px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
    padding: 10px;
    display: flex;
    flex-direction: column;
}

#chat-window {
    overflow-y: scroll;
    height: 300px;
    border: 1px solid #555; /* Darker border color */
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    background-color: #555; /* Darker background color */
}

#message-input {
    padding: 5px;
    border: 1px solid #666; /* Darker border color */
    border-radius: 3px;
    margin-right: 5px;
    flex-grow: 1;
    background-color: #666; /* Darker background color */
    color: #fff; /* Light text color */
}

#send-button {
    padding: 5px 10px;
    background-color: #0074cc;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

#send-button:hover {
    background-color: #0056aa;
}