This is a really fun concept! I enjoyed playing this a lot, the only thing that took away from the experience is that the layout/background is, for some reason, draggable. This made it very difficut (or in some cases, impossible) to see the orders at the top of the screen at the same time. I kept having to scroll up in order to deliver them, even if I had already prepared the drink they ordered (attempted to stock up on each drink type). Also, when I tried to play it on my laptop, it was basically not playable. Better experience on my desktop. I think with a little tweaking, this will be a winner. Or maybe there is a more optimal way to play on my end, not sure.
Thanks for playing, I'm glad you enjoyed it! ⸜(｡˃ ᵕ ˂ )⸝
What actually happens when you "drag the background" is that you are panning the camera around the scene, I hope that may become more clear as things progress. I'm currently working on a tutorial stage as well to teach new players the control of the game, since I have received feedback about players not knowing how to play.
I wonder if you have tried the scroll wheel for zooming in and out, perhaps that would help the scroll needed for delivery issue?