laggis/cs2-config-generator ? reverse-engineered prompt

Build me a privacy first web app that helps Counter Strike 2 players generate config files from a simple interface.

I want one page with a clean dark CS2 style look, tabs for things like competitive settings, video, audio, crosshair, HUD, binds, pro presets, launch options, and account. Users should be able to change values and see the config update live, capture a key by pressing it instead of typing it, and have resolution choices update automatically when the aspect ratio changes.

Please make it work fully in the browser with local storage only, so nothing gets sent to any server. Include save and load of settings, buttons to apply recommended defaults, built in warnings for risky or conflicting values, and a way to download individual cfg files or a complete package. If you need to look up current CS2 config details online, go ahead.