I am a game dev who's been in the industry for something like 10 years, so don't worry x)
As for the idea, I really wanted to make a card game, but I struggled to find something that would fit, to the point where I nearly gave up. I juste new that I wanted the order of the cards to matter, because I wanted the cards to line up like birds on a wire. But I started working on drawing cards and displaying them and the idea came to me, and I was lucky enough for it to work pretty well.