PG Gonni

Two counters that persist to Upstash, and everything around them that makes pressing one feel like something happened. The knobs above are the real variables — the bar reads each one with a var() fallback, so the sliders override the shipped defaults without the component knowing it's being poked at.

The wave

A dot lattice, invisible until a masked ring travels across it. Masking rather than scaling matters: scaling the layer would enlarge the dots as the wave moved, so the lattice itself would appear to grow. With a mask the dots hold their size and the wave crosses them.

The ring's radius is a registered @property, which is what makes it animatable at all — an unregistered custom property jumps between values instead of interpolating.

The press

Two transitions, not one. Pressing snaps down fast and linear; releasing runs an overshooting cubic-bezier so the icon springs back past its resting size. No spring solver, and no per-frame JavaScript — a transform transition stays on the compositor, which matters when a feed holds dozens of these sitting idle.

The amplitude is the hard part. The overshoot is a fraction of the press delta, not of the icon, so a 16px glyph pressed to 0.9 peaks about 1% over resting — a real spring, and completely invisible. Pull the depth slider up and down to see where it starts reading.

The copy button

The link icon and the check swap in the same slot on blur, scale and opacity together, rather than one replacing the other. The wave tints itself sky instead of orange, so the two actions are distinguishable without a label.

Counters run on a memory transport here: clicking is real, the persistence isn't, so playing with it costs nothing.