no complexity
to be fair i am often scared by the direction CSS is going.. it was supposed to be just styling and then it added states like hover and hidden to cover html semantics.. but then that lead to state management and before you know it we have a Turing complete language with variables and interactio with HTML.
Sure nobody HAS to use all of that but sometimes I feel like having all of that seems overkill.
But then who am I to complain.. I do my frontend with Jinja2 and flask so pure CSS animation is tame in comparison.