A choropleth world map colors countries by their 2024 GDP in trillions of US dollars, using a sequential blue scale to indicate magnitude. Built with React and D3 v7, it draws the map via `d3.geoEqualEarth` and `d3.geoPath` over a background sphere, with a tooltip showing exact values on hover. Data comes from the included `world_gdp_2024.csv`, matched to the TopoJSON country names through alias normalization.