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/replace/AttributeSelector.cjs

@@ -0,0 +1,32 @@
+'use strict';
+
+// Can unquote attribute detection
+// Adopted implementation of Mathias Bynens
+// https://github.com/mathiasbynens/mothereff.in/blob/master/unquoted-attributes/eff.js
+const blockUnquoteRx = /^(-?\d|--)|[\u0000-\u002c\u002e\u002f\u003A-\u0040\u005B-\u005E\u0060\u007B-\u009f]/;
+
+function canUnquote(value) {
+    if (value === '' || value === '-') {
+        return false;
+    }
+
+    return !blockUnquoteRx.test(value);
+}
+
+function AttributeSelector(node) {
+    const attrValue = node.value;
+
+    if (!attrValue || attrValue.type !== 'String') {
+        return;
+    }
+
+    if (canUnquote(attrValue.value)) {
+        node.value = {
+            type: 'Identifier',
+            loc: attrValue.loc,
+            name: attrValue.value
+        };
+    }
+}
+
+module.exports = AttributeSelector;