the update

app.py

@@ -249,16 +249,20 @@ llm = ChatGoogleGenerativeAI(
     temperature=0.5
 )
 
-# Custom CSS for background color
+# Custom CSS for background color and text color
 st.markdown(
     """
     <style>
         .stApp {
             background-color: #efefef !important;
+            color: black !important;
         }
         iframe {
             border: none !important;
         }
+        h1, h2, h3, h4, h5, h6, p, div, span, label {
+            color: black !important;
+        }
     </style>
     """,
     unsafe_allow_html=True