A world map rendered in red on a blue sphere, with country borders outlined in white, highlights each nation’s shape. Built with D3 v5 and TopoJSON, it uses `d3.geoEquirectangular` for projection and `d3.geoPath` to generate SVG paths from the world-atlas dataset. Hovering a country changes its fill to a darker red, while the base sphere is drawn using a GeoJSON Sphere object, displaying a full global projection.