Sun Timeline — Référence de design web et prompt

# Sun Timeline — Life of the Sun Scrub Hero (exact recreation prompt)

Build a single-file, full-viewport interactive page called **The Life of the Sun**. It is extremely minimal: a pure black page, one glowing ball in the upper-middle, a soft pool of light under it, a two-line caption, and a thin timeline of fine ticks. Scrubbing moves through ten stages of the Sun's life, from solar nebula to white dwarf. Each scrub physically throws the ball: it whips round, its surface smears into horizontal bands, and the new surface lands within about a quarter of a second while the caption blurs across.

Everything is drawn live in a raw WebGL fragment shader. There are no images, no video, and no libraries. Plain HTML, CSS and vanilla JS in one file; the only external resource is the font. Reproduce every value, string and timing below exactly.

Three rules define the look:
1. The ball **never changes size**. All ten stages are surfaces on the same ball.
2. The page stays **pure black**. The halo must reach exactly zero a short way off the ball; no wide glows or background gradients anywhere.
3. It must be **instantly responsive**. Every wheel tick, drag pixel or hover move changes state on that frame.

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