A full-viewport hero: a geodesic shell of nodes wired to their nearest neighbours, with a pulse of light travelling through the mesh. Node positions come from a Fibonacci sphere, edges from a nearest-neighbour pass at mount, and the glow sprite is drawn in the fragment shader - no model, no texture, no sprite sheet. Sizes to its container rather than the viewport, so it works dropped into a section as well as used as a full-screen hero, and the 3D layout switches on the same breakpoint as the copy. Layout and breakpoints are Tailwind classes; only the themeable colours are inline, and every one of them is a prop. Damped pointer parallax, adaptive quality tiers, reduced motion respected, and a staticTime prop that pins the sweep for deterministic covers.