If you're looking to add the Tribe login/sign up component to your own website, Tribe widgets can easily embedded it in your product, website, service, or phone app.
Using the Sign up form widget, you can display the community signup form inside your website. Since this widget injects HTML into your page it'll automatically adapt the look and feel of your webpage. Learn more here6!
Learn more about widgets here5! I hope this answers your question - if you'd like to further explain what you're trying to achieve, this will help me provide the best answer!