Streamlit layout

How you structure your app affects usability more than you think.

Sidebar: navigation + global filters only

The sidebar should only contain navigation and app-level filters. Main content goes in the main area.

# GOOD
with st.sidebar:
    date_range = st.date_input("Date range")
    region = st.selectbox("Region", ["All", "US", "EU", "APAC"])
    st.caption("App v1.2.3")