Confused?.. Unity sign in.

I’m lost. When you get unity. Unity emails you a password. But, where do you sign in. That is the only thing about unity there is no main profile page/sign sign out at the top of all of the pages, like on the google/gmail page if your not signed in it says sign in/login in, create account on top of an of the pages when your on the site.

Unity’s account system is used in the Asset Store and here, mainly. They don’t display a login area in all their pages because it would be pointless.