fix: Add Tailwind CSS import to BaseLayout

- Created globals.css with @import 'tailwindcss'
- BaseLayout now imports globals.css
- Custom industrial theme colors defined
- Desktop-first typography preserved
- Fixes missing CSS/styling issue

src/layouts/BaseLayout.astro

@@ -41,7 +41,5 @@ const { title, description, image } = Astro.props;
 </html>
 
 <style is:global>
-  html {
-    font-family: 'Kanit', system-ui, sans-serif;
-  }
+  @import "../styles/globals.css";
 </style>