A scroll-scrubbed, infinitely-looping 3D card gallery: cards hang off a receding gantry track using real CSS perspective/preserve-3d, the whole tray tilts toward the pointer like a specimen table, and whichever card sits nearest the camera (by depth, not mouse distance) gets a procedural focus highlight and its title pushed to a live readout.
pnpm dlx shadcn@latest add "https://design.helpmarq.com/r/gallery-gantry-track.json"