Refactor Streamlit UI in app.py: reorganize layout for clearer user interaction and restore 'Clear data' button functionality.

app.py

@@ -681,18 +681,25 @@ with tab2:
             )
 
 with tab3:
-    if st.button('Clear data', key='reset3'):
-        st.session_state.clear()
     if 'portfolio' in st.session_state and 'projections_df' in st.session_state:
-        col1, col2, col3 = st.columns([1, 8, 1])
+        
         excluded_cols = ['salary', 'median', 'Own', 'Finish_percentile', 'Dupes', 'Stack', 'Win%', 'Lineup Edge']
-        with col1:
-            site_var = st.selectbox("Select Site", ['Draftkings', 'Fanduel'])
-            sport_var = st.selectbox("Select Sport", ['NFL', 'MLB', 'NBA', 'NHL', 'MMA'])
-            st.info("It currently does not matter what sport you select, it may matter in the future.")
-            type_var = st.selectbox("Select Game Type", ['Classic', 'Showdown'])
-            Contest_Size = st.number_input("Enter Contest Size", value=25000, min_value=1, step=1)
-            strength_var = st.selectbox("Select field strength", ['Average', 'Sharp', 'Weak'])
+        with st.container():
+            col1, col2, col3 = st.columns(3)
+            with col1:
+                if st.button('Clear data', key='reset3'):
+                    st.session_state.clear()
+                site_var = st.selectbox("Select Site", ['Draftkings', 'Fanduel'])
+                
+            with col2:
+                sport_var = st.selectbox("Select Sport", ['NFL', 'MLB', 'NBA', 'NHL', 'MMA'])
+                st.info("It currently does not matter what sport you select, it may matter in the future.")
+                type_var = st.selectbox("Select Game Type", ['Classic', 'Showdown'])
+
+            with col3:
+                Contest_Size = st.number_input("Enter Contest Size", value=25000, min_value=1, step=1)
+                strength_var = st.selectbox("Select field strength", ['Average', 'Sharp', 'Weak'])
+                
         if site_var == 'Draftkings':
             if type_var == 'Classic':
                 map_dict = {
@@ -771,7 +778,9 @@ with tab3:
                           sum(map_dict['own_map'].get(player, 0) for player in row.iloc[1:]),
                 axis=1
             )
-        with col3:
+
+        col1, col2 = st.columns([9, 1])
+        with col2:
             with st.form(key='filter_form'):
                 max_dupes = st.number_input("Max acceptable dupes?", value=1000, min_value=1, step=1)
                 min_salary = st.number_input("Min acceptable salary?", value=1000, min_value=1000, step=100)
@@ -790,7 +799,7 @@ with tab3:
                 
                 submitted = st.form_submit_button("Submit")
 
-        with col2:
+        with col1:
             st.session_state['portfolio'] = predict_dupes(st.session_state['portfolio'], map_dict, site_var, type_var, Contest_Size, strength_var)
             st.session_state['portfolio'] = st.session_state['portfolio'][st.session_state['portfolio']['Dupes'] <= max_dupes]
             st.session_state['portfolio'] = st.session_state['portfolio'][st.session_state['portfolio']['salary'] >= min_salary]