Very nice. 1) I think you should put a little tiny triangle / down arrow on the right side of the text-box to give it the official "selection" ui signal. 2)

Very nice. 1) I think you should put a little tiny triangle / down arrow on the right side of the text-box to give it the official "selection" ui signal. 2) I think you should NOT grey out dates that have already passed and are not selectable but instead keep them the same black color as the others, just <strikethrough> them. They're really hard to see when grayed out that much and it confused me a little bit when I first saw the month.