MrMR-711/SunTrack ? reverse-engineered prompt

Build me a simple sunrise tracker app called SunTrack.

I want a clean mobile friendly web app that helps me figure out the best time to wake up and leave home for a morning walk or run, based on the sunrise time for my city. Let me search for a city from a list, or use my location automatically with GPS. Then show me the sunrise time, the time I should leave home, and the time I should wake up, with a nice countdown style timeline so it’s easy to understand at a glance.

Use live location and sunrise data from online services if needed, and make the app feel like a modern PWA that can work smoothly on phone and desktop. Keep the design simple, calm, and easy to read early in the morning. If it helps, you can look up current docs online while building it.