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/prismjs/components/prism-arff.js

@@ -0,0 +1,10 @@
+Prism.languages.arff = {
+	'comment': /%.*/,
+	'string': {
+		pattern: /(["'])(?:\\.|(?!\1)[^\\\r\n])*\1/,
+		greedy: true
+	},
+	'keyword': /@(?:attribute|data|end|relation)\b/i,
+	'number': /\b\d+(?:\.\d+)?\b/,
+	'punctuation': /[{},]/
+};