I have a question about the 90 Day Rule for going to the Schengen Area (I'm an American). Last June around the 20th I entered Germany as a tourist, and around the 30th of June I got an Au Pair visa that allowed me to stay for 6 months. I left Germany around the 10th of December. I am planning to go to Italy in the first week of June this year (just to travel), and am wondering about this whole 90 day within a 180 day period thing. It will not have been 180 days since I left Germany, but if I had a long term visa while I was there, rather than just a tourist visa, will I be allowed to enter and stay for a full 90 days? Does the 180 day period start from when I first entered Germany, thus I really only used 10 "tourist visa days" before leaving?
I realize this is a super specific question, so if anyone can even just point me in the right direction as to where to find more info on this that would be great!