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/node/dist/esm-cache.loader.mjs

@@ -0,0 +1 @@
+import{isBuiltin as i}from"module";var o=async(a,e,u)=>{let r=await u(a,e);if(r.url===import.meta.url||i(r.url)||!e.parentURL)return r;let t=new URL(e.parentURL).searchParams.get("id");if(t===null)return r;let l=new URL(r.url);return l.searchParams.set("id",t),{...r,url:`${l}`}};export{o as resolve};