Fork of D3 v5 Zoomable Sunburst v1
This interactive sunburst diagram visualizes a hierarchical dataset through nested, color-coded arcs that zoom and pan with click interactions. Built with D3 v5, it uses `d3.hierarchy` and `d3.partition` to compute layout, while `d3.arc` generates each segment. Transitions animate via `transition.attrTween` and interpolated arc paths, with labels rotating and fading based on visibility criteria. The data originates from the `@observablehq/flare` package, rendered as SVG with responsive scaling.