Cards stack themselves like a perfectly shuffled deck. NO Javascript. No Math. Just `position: sticky`being unreasonably cool.
`animation-timeline: view()` means your scroll Is the timeline. Scrub backc? Animation rewinds. It's like TiVo for CSS.
`perspective` and `rotateX` make flat divs look thicc. Cards tilt back like they're judging your scroll speed.
Composition-only transform mean the GPU does all the work. Your main thread? Sipping margaritas. Zero jank, all smooth.