@Totus As @Stranik mentioned, take a look at my Custom Wizard plugin. It may be what you’re after. I can help you with that for free. If you want help with that post in the Custom Wizard plugin topic.
If that’s not quite right, you can hire me to add any customizations, such as a video embed in the login modal, or a new login page. If you want to go down that route PM me and we’ll take it from there.