This is a really well made game, I liked the idea of applying mathematics and trying to find the best possible strategy. One small suggestion - You can keep the catalog open by default so that early players can know without any hidden effort, also just the text open was not enough to figure out that it is a catalog for me, I realized after I clicked it.
There is a small bug - The panel on top sometimes disappears or the selection does not change after points animation
Really enjoyed your game, waiting for a multiplayer version of this