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-gap.js

@@ -0,0 +1,54 @@
+// https://www.gap-system.org/Manuals/doc/ref/chap4.html
+// https://www.gap-system.org/Manuals/doc/ref/chap27.html
+
+Prism.languages.gap = {
+	'shell': {
+		pattern: /^gap>[\s\S]*?(?=^gap>|$(?![\s\S]))/m,
+		greedy: true,
+		inside: {
+			'gap': {
+				pattern: /^(gap>).+(?:(?:\r(?:\n|(?!\n))|\n)>.*)*/,
+				lookbehind: true,
+				inside: null // see below
+			},
+			'punctuation': /^gap>/
+		}
+	},
+
+	'comment': {
+		pattern: /#.*/,
+		greedy: true
+	},
+	'string': {
+		pattern: /(^|[^\\'"])(?:'(?:[^\r\n\\']|\\.){1,10}'|"(?:[^\r\n\\"]|\\.)*"(?!")|"""[\s\S]*?""")/,
+		lookbehind: true,
+		greedy: true,
+		inside: {
+			'continuation': {
+				pattern: /([\r\n])>/,
+				lookbehind: true,
+				alias: 'punctuation'
+			}
+		}
+	},
+
+	'keyword': /\b(?:Assert|Info|IsBound|QUIT|TryNextMethod|Unbind|and|atomic|break|continue|do|elif|else|end|fi|for|function|if|in|local|mod|not|od|or|quit|readonly|readwrite|rec|repeat|return|then|until|while)\b/,
+	'boolean': /\b(?:false|true)\b/,
+
+	'function': /\b[a-z_]\w*(?=\s*\()/i,
+
+	'number': {
+		pattern: /(^|[^\w.]|\.\.)(?:\d+(?:\.\d*)?|\.\d+)(?:[eE][+-]?\d+)?(?:_[a-z]?)?(?=$|[^\w.]|\.\.)/,
+		lookbehind: true
+	},
+
+	'continuation': {
+		pattern: /([\r\n])>/,
+		lookbehind: true,
+		alias: 'punctuation'
+	},
+	'operator': /->|[-+*/^~=!]|<>|[<>]=?|:=|\.\./,
+	'punctuation': /[()[\]{},;.:]/
+};
+
+Prism.languages.gap.shell.inside.gap.inside = Prism.languages.gap;