DATUM — a spec-sheet system for studios and agencies.
Every section is a sheet. Part numbers, dimension lines, revision chips, a scale rail that tracks your position down the page, and a bill of materials that fills line by line as you scroll.
Nine sticky elements do the heavy lifting: a pinned plate sequence that stacks its tabs as you pass them, a survey line that draws itself station by station through the build log, and a footer the page slides up off.
Layout and content stay on the canvas. Code components only where the canvas couldn't do the job, each with property controls, so it stays editable after you buy it.
7 pages, 4 breakpoints, dark and light both designed rather than inverted. 1.36 MB, reduced motion honoured, no horizontal overflow at any width.
There's a style guide page documenting the system, so it survives being edited.
