Thank you so much for your feedback!
I'm glad the game beat your expectations!
I just made an update which will me uploaded momentarily and that (hopefully) fixes all the issues you described!
Wheel no longer zooms under windows — the camera now refuses wheel input whenever the cursor is over any UI control. Since every popup has a full-screen backdrop, this covers upgrades, codex, guide, inventory, and anything added later, while wheel-over-world still zooms normally.
Upgrade window keeps the bank visible — the "Grass biomass: N" header (plus the flowering-bushes note and the Pulse Focus dial) now live in a fixed strip above the scrolling list. However far you scroll, the points available stay on screen, ticking live.
"Leftover" clutter removed — the detail card now shows just the cost, colored green/red by affordability; the pinned header already shows the bank.
Footer is real buttons — the static hint text is gone. Bottom-left now shows each unlocked tool as a clickable button (active one highlighted, appears as you unlock more), then Upgrades, Codex, and Guide buttons. They work by synthesizing their own shortcut keys, so behavior is pixel-identical to pressing Tab/C/F1 and all shortcuts still work.
Hints tucked away — the click/pan/zoom/inspect reference lives in the Guide button's tooltip, exactly as the player suggested, and the full version remains in the Guide's Controls topic.
The new footer sits where the old hint text was; if it ever collides with the touch toolbar when Touch controls are On, tell me and I'll dodge one around the other
Thank you again for your feedback and as I continue to develop the game I hope to hear you enjoy it and the things you don't or want polished, I hope for feedback!
-Maz