## Features

- **Dashboard**: Customizable pie and bar chart overviews, with support for switching between months and displaying recent bills.
- **Bill List**: Filterable, modern card-style interface with clear color separation for income and expenses.
- **Add/Edit Bill**: Modern entry page with bottom-panel selector, field validation, and customizable title bar.
- **Bill Details**: Card-style details page with edit/delete support and customizable confirmation pop-up.
- **Fully English**: All code, interfaces, comments, and data are in English.
- **Modern UI/UX**: Sky blue, off-white, and orange primary colors, with rounded corners, gradients, and an immersive layout.
- **No Login/Registration**: All local data, no cloud storage, and no statistical analysis.
- **Lightweight and Efficient**: MinSdk 24, TargetSdk 34, APK <10MB, no Kotlin, no redundant dependencies.
- **No cartoon/cat elements**: All icons are minimalist and modern.