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-ebnf.js

@@ -0,0 +1,22 @@
+Prism.languages.ebnf = {
+	'comment': /\(\*[\s\S]*?\*\)/,
+	'string': {
+		pattern: /"[^"\r\n]*"|'[^'\r\n]*'/,
+		greedy: true
+	},
+	'special': {
+		pattern: /\?[^?\r\n]*\?/,
+		greedy: true,
+		alias: 'class-name'
+	},
+
+	'definition': {
+		pattern: /^([\t ]*)[a-z]\w*(?:[ \t]+[a-z]\w*)*(?=\s*=)/im,
+		lookbehind: true,
+		alias: ['rule', 'keyword']
+	},
+	'rule': /\b[a-z]\w*(?:[ \t]+[a-z]\w*)*\b/i,
+
+	'punctuation': /\([:/]|[:/]\)|[.,;()[\]{}]/,
+	'operator': /[-=|*/!]/
+};