body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#chat-container {
    width: 90%;
    max-width: 600px;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.1);
}

#chatbot {
    height: 400px;
    overflow-y: auto;
    margin-bottom: 10px;
    padding-right: 20px;
    display: flex;
    flex-direction: column;
}

#user-input {
    width: calc(100% - 80px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 25px;
    margin-top: 10px;
    font-size: 16px;
}

button {
    background-color: #f76c6c;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 25px;
    margin-left: 10px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #f54b4b;
}

.chat-message {
    margin: 10px 0;
}

.chat-message.bot {
    background-color: #f8e3d0;
    padding: 10px;
    border-radius: 10px;
    max-width: 80%;
    align-self: flex-start;
}

.chat-message.user {
    background-color: #e0f7fa;
    padding: 10px;
    border-radius: 10px;
    max-width: 80%;
    align-self: flex-end;
}

button.selection-btn {
    border-radius: 25px;
    padding: 12px 20px;
    margin: 5px;
    font-size: 14px;
    cursor: pointer;
}

.green-btn {
    background-color: #4CAF50;
    color: white;
}

.red-btn {
    background-color: #f44336;
    color: white;
}

.purple-btn {
    background-color: #9C27B0;
    color: white;
}

.clear-btn {
    background-color: #ccc;
    color: black;
}