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-bison.js

@@ -0,0 +1,39 @@
+Prism.languages.bison = Prism.languages.extend('c', {});
+
+Prism.languages.insertBefore('bison', 'comment', {
+	'bison': {
+		// This should match all the beginning of the file
+		// including the prologue(s), the bison declarations and
+		// the grammar rules.
+		pattern: /^(?:[^%]|%(?!%))*%%[\s\S]*?%%/,
+		inside: {
+			'c': {
+				// Allow for one level of nested braces
+				pattern: /%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,
+				inside: {
+					'delimiter': {
+						pattern: /^%?\{|%?\}$/,
+						alias: 'punctuation'
+					},
+					'bison-variable': {
+						pattern: /[$@](?:<[^\s>]+>)?[\w$]+/,
+						alias: 'variable',
+						inside: {
+							'punctuation': /<|>/
+						}
+					},
+					rest: Prism.languages.c
+				}
+			},
+			'comment': Prism.languages.c.comment,
+			'string': Prism.languages.c.string,
+			'property': /\S+(?=:)/,
+			'keyword': /%\w+/,
+			'number': {
+				pattern: /(^|[^@])\b(?:0x[\da-f]+|\d+)/i,
+				lookbehind: true
+			},
+			'punctuation': /%[%?]|[|:;\[\]<>]/
+		}
+	}
+});