The goal is to craft a straightforward application that runs seamlessly both in a browser and as a native Android app while sharing the same modern, uncluttered look and feel. I need a UI that feels current, loads fast, and adapts smoothly from phone screens to large desktop monitors, with navigation kept as simple as possible so users never wonder where to tap or click next. Scope • Web front-end: any contemporary stack you are comfortable with—as long as the interface stays responsive and mirrors the Android version in layout and styling. • Mobile front-end: a native Android build (Java or Kotlin in Android Studio) so I can explore the platform’s full capabilities rather than relying on hybrid wrappers. Deliverables • Complete, well-organised source code for both the web and Android projects. • A brief document explaining project structure, key files, and the steps to run or rebuild each version on a fresh machine. This is primarily a learning and early-stage startup exercise, so clarity and clean coding practices are as important to me as the final UI itself.