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/lib/restructure/index.js

@@ -0,0 +1,35 @@
+import prepare from './prepare/index.js';
+import mergeAtrule from './1-mergeAtrule.js';
+import initialMergeRuleset from './2-initialMergeRuleset.js';
+import disjoinRuleset from './3-disjoinRuleset.js';
+import restructShorthand from './4-restructShorthand.js';
+import restructBlock from './6-restructBlock.js';
+import mergeRuleset from './7-mergeRuleset.js';
+import restructRuleset from './8-restructRuleset.js';
+
+export default function(ast, options) {
+    // prepare ast for restructing
+    const indexer = prepare(ast, options);
+    options.logger('prepare', ast);
+
+    mergeAtrule(ast, options);
+    options.logger('mergeAtrule', ast);
+
+    initialMergeRuleset(ast);
+    options.logger('initialMergeRuleset', ast);
+
+    disjoinRuleset(ast);
+    options.logger('disjoinRuleset', ast);
+
+    restructShorthand(ast, indexer);
+    options.logger('restructShorthand', ast);
+
+    restructBlock(ast);
+    options.logger('restructBlock', ast);
+
+    mergeRuleset(ast);
+    options.logger('mergeRuleset', ast);
+
+    restructRuleset(ast);
+    options.logger('restructRuleset', ast);
+};