Does what you ship involve hundreds of lines of HTML/CSS by any chance? Do you care about accessibility?

It does indeed. Most of what we build are web applications used internally by our clients (e.g., inside their business, not customer facing.)

Because of that, we don't typically spend a lot of time on accessibility because it's internal facing software. As far as I'm aware, these businesses don't have individuals who need those accommodations. Of course, if that changed, it is something we'd need to consider.