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/plugins/highlight-keywords/prism-highlight-keywords.js

@@ -0,0 +1,14 @@
+(function () {
+
+	if (typeof Prism === 'undefined') {
+		return;
+	}
+
+	Prism.hooks.add('wrap', function (env) {
+		if (env.type !== 'keyword') {
+			return;
+		}
+		env.classes.push('keyword-' + env.content);
+	});
+
+}());

node_modules/prismjs/plugins/highlight-keywords/prism-highlight-keywords.min.js

@@ -0,0 +1 @@
+"undefined"!=typeof Prism&&Prism.hooks.add("wrap",(function(e){"keyword"===e.type&&e.classes.push("keyword-"+e.content)}));