👋 I totally get your frustration with those Tailwind utilities not working - I ran into the same issue when I started using Tailwind in multiple projects. Let me help you get this fixed!

I can see the exact problem in your code. You're mixing Tailwind with regular CSS in a way that's causing conflicts. Here's how to fix it:

The biggest issue is this part in your CSS:

@import "tailwindcss";  /* This is the problem! */

Instead, change your CSS file to this:

@tailwind base;
@tailwind components;
@tailwind utilities;

/* Keep your reset if you want it */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

That's really the main thing breaking your utilities! All those padding and margin classes like p-6 and space-x-6 should start working right away after you make this change.

You can then remove all these custom CSS rules since Tailwind will handle it:

/* You don't need these anymore! */
nav.container {
    padding: 24px;
    margin-inline: auto;
}

.navbar a {
    margin-inline-end: 24px;
}

Your HTML looks good already - keep it as is:

<nav class="container mx-auto p-6">
    <!-- Your content is fine! -->
</nav>

If you make just these changes, those utilities should start working again like they did in your first project! Let me know if you need any help with this.