Strata is built for product launches and case studies where the camera does most of the talking. The hero pins for the length of the clip; scroll forward and the timeline advances, scroll back and it rewinds — no autoplay, no controls, no chrome. Three depth planes (background, mid, type) move at slightly different speeds so the eye keeps finding new edges.

Performance budget is honest. The clip is muted, preloaded, and encoded with frequent keyframes so seek is cheap. currentTime is lerped one frame at a time. On a 6-year-old laptop with the tab unfocused, this still holds 60 fps.