The page as a film the reader projects at their own speed: full-viewport pinned scenes, scroll-scrubbed animation timelines, chaptered pacing with title cards, cinematic dark grounds, and captions that fade in like subtitles.
Primary actionThe pinned scene: a section that locks to the viewport while scrolling scrubs its internal timeline — an image sequence playing, a diagram assembling, a headline resolving — before releasing the page to the next chapter card.