ayanxcs/GreatRed-Uid-Bypass ? reverse-engineered prompt

Build me a clean, modern .NET 9 WPF desktop app interface for a game related client concept, something that feels polished and professional right away.

I want a simple but attractive frontend only, with a nice layout, smooth looking controls, and a premium dark style that could fit a Free Fire style UID bypass tool or similar gaming utility. Focus on the user experience, spacing, colors, buttons, panels, and any small animations that make it feel modern. Keep it easy to customize so I can swap text, icons, and sections later.

Make it look finished, not like a starter template. Add a main window with a sidebar or navigation area, a central content panel, status text, and a few placeholder sections for future features. If you need to check current WPF docs or best practices, look them up online.