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-erlang.js

@@ -0,0 +1,44 @@
+Prism.languages.erlang = {
+	'comment': /%.+/,
+	'string': {
+		pattern: /"(?:\\.|[^\\"\r\n])*"/,
+		greedy: true
+	},
+	'quoted-function': {
+		pattern: /'(?:\\.|[^\\'\r\n])+'(?=\()/,
+		alias: 'function'
+	},
+	'quoted-atom': {
+		pattern: /'(?:\\.|[^\\'\r\n])+'/,
+		alias: 'atom'
+	},
+	'boolean': /\b(?:false|true)\b/,
+	'keyword': /\b(?:after|begin|case|catch|end|fun|if|of|receive|try|when)\b/,
+	'number': [
+		/\$\\?./,
+		/\b\d+#[a-z0-9]+/i,
+		/(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i
+	],
+	'function': /\b[a-z][\w@]*(?=\()/,
+	'variable': {
+		// Look-behind is used to prevent wrong highlighting of atoms containing "@"
+		pattern: /(^|[^@])(?:\b|\?)[A-Z_][\w@]*/,
+		lookbehind: true
+	},
+	'operator': [
+		/[=\/<>:]=|=[:\/]=|\+\+?|--?|[=*\/!]|\b(?:and|andalso|band|bnot|bor|bsl|bsr|bxor|div|not|or|orelse|rem|xor)\b/,
+		{
+			// We don't want to match <<
+			pattern: /(^|[^<])<(?!<)/,
+			lookbehind: true
+		},
+		{
+			// We don't want to match >>
+			pattern: /(^|[^>])>(?!>)/,
+			lookbehind: true
+		}
+	],
+	'atom': /\b[a-z][\w@]*/,
+	'punctuation': /[()[\]{}:;,.#|]|<<|>>/
+
+};