How this animation works
Pinned hero with a scroll-scrubbed frame sequence and staged text beats.
- Trigger
- page scroll through a tall runway (~700–800vh) while the hero stays stuck to the viewport.
- Motion
- scroll progress scrubs a preloaded image sequence (~120 frames) on a canvas frame-by-frame; overlaid text panels fade and slide in and out at defined progress ranges (chapter beats), and a progress bar with beat labels tracks position. Fully reversible — scrolling back rewinds both footage and copy.
