Cards on a straight line at even spacing. The strip slides so the focused card stays centred; neighbours recede in scale and opacity. Use it when the items are peers — five models, four options, a ranked list. The scale difference does the ranking, so the cards themselves stay identical.

Identical mechanism, but each card's height follows a cosine of its distance from centre and it rotates with it, so the row reads as a wheel turning rather than a strip sliding. Use it when the set is a journey rather than a ranking — days, steps, versions over time. Heavier motion, so once an episode at most.