This is fairly well polished, and the menus and controls all feel really nice. Music and sfx all sound good as well. This feels very close to a real game so good work!
It took me a little bit to wrap my head around how I should place the cards. A step by step tutorial would go a long way here I think, or maybe have smaller levels where you introduce the different card types one at a time. The little messages at the top kind of serve that purpose but since they were slow to auto-cycle and didn't always apply to the card I had in hand they weren't that useful.
Also minor thing, using the mouse wheel to scroll the guide book is really slow. It works fine just clicking and dragging but since I'm on a mouse my first instinct was to use the scroll wheel.