Blue US passport in black leather sleeve

I lost my blue US passport yesterday around 3pm near the Sundial Bridge at Turtle Bay Exploration Park in Redding. It was tucked in a slim black leather sleeve inside my gray backpack, which I had set down on a bench while I grabbed a latte from a cafe nearby. The passport has a small crease along the bottom edge and a faint coffee ring on the cover; I’ve never misplaced it before, and it means a lot to me since it’s my only travel document right now. If anyone found it, please reach out—really hoping to get it back soon so I can book my trip.