Update app.py

app.py

@@ -1,7 +1,6 @@
 import os
 import streamlit as st
 import time
-import re
 from langchain.chat_models import ChatOpenAI
 from langchain.chains import ConversationalRetrievalChain
 from langchain.prompts import PromptTemplate
@@ -65,34 +64,6 @@ qa_chain = ConversationalRetrievalChain.from_llm(
 st.set_page_config(page_title="AI Course Recommendation Chatbot", page_icon=":book:")
 st.title("AI Course Recommendation Chatbot")
 
-# Custom CSS for styling
-st.markdown("""
-<style>
-    .chat-container {
-        max-width: 800px;
-        margin: auto;
-        padding: 20px;
-        border-radius: 10px;
-        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
-        background-color: #f9f9f9;
-    }
-    .user-message {
-        background-color: #d1e7dd;
-        border-radius: 10px;
-        padding: 10px;
-        margin: 5px 0;
-        text-align: left;
-    }
-    .assistant-message {
-        background-color: #e2e3e5;
-        border-radius: 10px;
-        padding: 10px;
-        margin: 5px 0;
-        text-align: left;
-    }
-</style>
-""", unsafe_allow_html=True)
-
 # Initialize chat history in session state
 if "messages" not in st.session_state:
     st.session_state.messages = []