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/oniguruma-parser/dist/optimizer/transforms/unnest-useless-classes.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"unnest-useless-classes.d.ts","sourceRoot":"","sources":["../../../src/optimizer/transforms/unnest-useless-classes.ts"],"names":[],"mappings":"AACA,OAAO,KAAK,EAAC,OAAO,EAAC,MAAM,6BAA6B,CAAC;AAGzD;;;EAGE;AACF,QAAA,MAAM,oBAAoB,EAAE,OAsC3B,CAAC;AAEF,OAAO,EACL,oBAAoB,GACrB,CAAC"}