This interactive world map displays country boundaries on an orthographic projection using SVG. The visualization reacts to mouse movement, rotating the globe horizontally based on cursor position. Built with React and D3 v5, it uses `geoOrthographic` and `geoPath` for projection and rendering, with `geoGraticule` adding grid lines. Land polygons come from the world-atlas TopoJSON dataset, with interior country borders highlighted in a contrasting color.