We’re sorry that you had this issue. We had a brief server outtage that lasted about 10min. That has since been resolved and you should be able to log in now
It’d be good if your canary testing for login was more frequent, and was reflected on the status page (which it was not). I started getting frustrated because I thought it was some error on my side of the fence (Obviously 503 is a s server side issue, but still) and started testing different configurations. If it had been noted on your status page, I would have sat back and waited for it to turn green before trying anything.