A restraint study: one rounded volt-blue cube in real 3D (three.js RoundedBoxGeometry),
slow rotation with soft floating and a paper-soft contact shadow.
Drag to grab and spin it — release and it keeps turning on inertia before easing back to
idle. The camera parallaxes toward the cursor; a click springs the cube and flicks its spin.
Colour is read from the site’s --volt token, so it swaps with the theme. Under
prefers-reduced-motion it settles to a single three-quarter pose.