A scroll-pinned card stack: full-width cards slide up and seat at a fixed point with a 2px settle-and-lock, then pile into a receding deck as later cards pin over them — depth carried by cool desaturation, a hair of scale and a soft downward shadow, never color. Reverses cleanly and falls back to a plain legible list under reduced motion.
pnpm dlx shadcn@latest add "https://crucibleui.com/r/shingle.json"