Update app.py

app.py

@@ -39,17 +39,12 @@ st.set_page_config(page_title="ST_GeoMech_UCS", page_icon="logo.png", layout="wi
 # This is the new CSS block for the sticky header and message box
 st.markdown("""
 <style>
-/* Add a light gray background to the main app container */
-.stApp {
-    background-color: #f0f2f6;
-}
-
 /* CSS to make the header sticky */
 .fixed-header-container {
     position: sticky;
     top: 0;
     z-index: 1000;
-    background-color: #f0f2f6; /* Ensure sticky header background matches app background */
+    background-color: #f0f2f6; /* Adjust to match your app's background color */
     padding: 10px 0;
     box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
 }
@@ -438,6 +433,11 @@ st.sidebar.markdown(f"""
     """, unsafe_allow_html=True
 )
 
+# =========================
+# Reusable Sticky Header Function
+# This function is now removed, replaced by the fixed-header-container
+# =========================
+
 # =========================
 # The main sticky container is defined here, before the app logic
 # This ensures it's rendered at the top of the page regardless of state.