I'm a web designer but unfamiliar with Weebly. I thought all Weebly was created and hosted at Weebly.com and then pointed to a domain.

So, my client has a site created with Weebly, but they are html files hosted with Bluehost. I know how to edit html, but wasn't sure if they are still connected to Weebly, and if so then is there a way to log in to the site and edit them via a CMS? Thank you for any suggestions.