This interactive visualization presents a zoomable sunburst chart of the Flare data hierarchy, where clicking a ring segment smoothly transitions the view to that level. The chart encodes hierarchical relationships as concentric rings, with arc length proportional to values and colors assigned by top-level category. Built with D3 v5, it uses the `d3.partition()` layout, `d3.arc()` for path geometry, and CSS transitions driven by `transition.attrTween` to animate changes. The example loads data from the `@observablehq/flare` package and renders everything as SVG elements.