Pick another tab in the nav above — or Tab to it, or press ← →. The pill stretches into a liquid neck as it slides, then rounds off under the new label.
Click, focus, or arrow-key the nav and the segmented tabs below. The links stay real: each keeps its href, its focus ring, and its place in the tab order — the goo is only paint behind the text.
The liquid highlight is an SVG metaball filter drawn behind ordinary links. It never touches their structure, their order, or the native cursor — and the follower blobs do zero work the instant the slide settles. Nothing on this page shifts layout when the pill moves.