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/csso/cjs/clean/Declaration.cjs

@@ -0,0 +1,18 @@
+'use strict';
+
+const cssTree = require('css-tree');
+
+function cleanDeclartion(node, item, list) {
+    if (node.value.children && node.value.children.isEmpty) {
+        list.remove(item);
+        return;
+    }
+
+    if (cssTree.property(node.property).custom) {
+        if (/\S/.test(node.value.value)) {
+            node.value.value = node.value.value.trim();
+        }
+    }
+}
+
+module.exports = cleanDeclartion;