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/astro/dist/runtime/client/visible.js

@@ -0,0 +1,25 @@
+const visibleDirective = (load, options, el) => {
+  const cb = async () => {
+    const hydrate = await load();
+    await hydrate();
+  };
+  const rawOptions = typeof options.value === "object" ? options.value : void 0;
+  const ioOptions = {
+    rootMargin: rawOptions?.rootMargin
+  };
+  const io = new IntersectionObserver((entries) => {
+    for (const entry of entries) {
+      if (!entry.isIntersecting) continue;
+      io.disconnect();
+      cb();
+      break;
+    }
+  }, ioOptions);
+  for (const child of el.children) {
+    io.observe(child);
+  }
+};
+var visible_default = visibleDirective;
+export {
+  visible_default as default
+};