FAQ accordion solution - Angular, Sass

What are you most proud of, and what would you do differently next time?

Certainly, this may not be the best possible solution, but for a first project, I believe I fulfilled the main objective: learning and practicing the main concepts of the framework. :)

What specific areas of your project would you like help with?

Using not(:last-child): 'is a little more complicated in an Angular application. Maybe because of the way the elements are assembled into the components. Any tip is welcome.