Update app.py

app.py

@@ -621,7 +621,23 @@ if query:
     st.session_state.chat_history.append(("🧑", query))
     st.session_state.chat_history.append(("🤖", final_answer))
 
+st.markdown("""
+    <style>
+    @import url('https://cdn.fontcdn.ir/Font/Persian/Vazir/Vazir.css');
+
+    div.chat-message {
+        font-family: 'Vazir', sans-serif;
+        font-size: 16px;
+        color: white;
+        background-color: #0d4d31;
+        padding: 10px;
+        border-radius: 10px;
+        margin-bottom: 5px;
+    }
+    </style>
+""", unsafe_allow_html=True)
+
 # نمایش تاریخچه گفتگو
 st.markdown("---")
 for sender, message in st.session_state.chat_history:
-    st.markdown(f'<div style="background-color:#0d4d31;padding:10px;border-radius:10px;margin-bottom:5px;"><strong>{sender}</strong>: {message}</div>', unsafe_allow_html=True)
+    st.markdown(f'<div class="chat-message"><strong>{sender}</strong>: {message}</div>', unsafe_allow_html=True)