The first real obstacle wasn't the design — it was getting a nervous team to see what I saw. I started at the whiteboard, my usual, and it wasn't landing; people couldn't picture how a full desktop marketing page would behave collapsed to phone width. So we printed the existing desktop pages, shrank them to roughly 50%, and physically broke them down into how they'd stack as mobile. Holding a half-scale page made the translation concrete, aligned everyone before wireframing, and calmed the team, because now we were reasoning about something real instead of arguing about something imagined.