Hi, I need a super simple, private web tool (no login, no backend server needed) that does exactly this: I drag-and-drop or select a Google Ads Geographic report CSV (it will have columns like Postal Code / Zip Code, Conversions, Impressions, Cost, Clicks, etc.). Instantly see a clean interactive map of the United States with real ZIP code (ZCTA) polygon boundaries filled with color based on performance: Green = high conversions Yellow/orange = medium Red = low or zero conversions Gray = no data / not targeted Hover any zip code → popup or sidebar shows the exact numbers from my CSV (conversions, cost, impressions, ROAS, etc.). Slider or input box to hide all zips with less than X conversions (so I can instantly see “cold zones”). Zoom-to-fit my data automatically + search box for specific zip codes. Export the current map view as PNG or PDF (for client reports). Tech requirements (any of these is fine): Mapbox GL JS or Leaflet (Mapbox preferred) Real US ZIP code boundaries (you can download the free Census ZCTA GeoJSON and simplify it, or use a hosted tileset) Pure HTML + JavaScript (so I can host it for free on Netlify / Vercel) Or Python Streamlit if you prefer (also fine) Must be 100% offline-capable after the first load (except the map tiles). Deliverables: Complete source code (GitHub repo or zip) 1-click deploy instructions (Netlify/Vercel or Streamlit sharing link) A short 2-minute loom video showing it working