Opinion cards, series 1. Every list is a sealed pack. 0 of 174 cards seen
Rip a pack open. Thick packs hold more cards: the roads pack has 3, the book box has 100 and comes with a binder.
Core idea: every list is a booster pack and every item is a trading card. You rip a pack, cards deal out, and the card you pick sits on the mat at full size. Short lists are a hand you can see at once; long lists slide into a nine-pocket binder you page through. Arrow keys walk card to card, straight across page turns.
Homes for rich content: the art window on every card is the photo slot; the pack wrapper is each list's cover illustration; the type line carries mood and rarity icons; the text box holds the blurb and the outbound link; the collector line cross-references the list. The "cards seen" counter and the flippable card back reward poking.
Hardest to build: 174 cards (and eventually thousands) each wanting real art. The frame only sings when the art window is filled, so this concept commits Alex to an image per item, or to a very good generative fallback.