Now let me read the pages that reference the domains and companies to understand what needs updating:

Now I have full context. I need to add non-technical domains (Marketing, Business, Finance, Design, Project Management, Writing, HR, Personal Development) with real courses from real companies. Let me update all affected files.

Now update the home page to reflect the new non-technical domains in the hero description, popular tags, and stats:

Now update the nav card description on the home page:

Now update the domains page to add the new icons:

Now update the home page's icon map too:

Now update the footer to include non-technical domains:

Now update the domain grid on the home page to show them in two rows with labels for Technical and Non-Technical:

v5 was created by restoring v3