fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/@tailwindcss/vite/dist/index.d.mts

@@ -0,0 +1,13 @@
+import { Plugin } from 'vite';
+
+type PluginOptions = {
+    /**
+     * Optimize and minify the output CSS.
+     */
+    optimize?: boolean | {
+        minify?: boolean;
+    };
+};
+declare function tailwindcss(opts?: PluginOptions): Plugin[];
+
+export { type PluginOptions, tailwindcss as default };