andrew
49fde0e718
Add comprehensive brand assets for Gitpub: a new Docs/Styling-Guide.md containing the brand color system, surface hierarchy, typography, gradients, shadows, syntax highlighting, mascot guidelines, and usage rules; and a white wordmark SVG at Logo Concept 2/Gitpub-Word-Logo-2-White.svg. These files provide visual direction and a ready-to-use logo for implementation across the product and marketing materials.