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/rc/test/nested-env-vars.js

@@ -0,0 +1,50 @@
+
+var seed = Math.random();
+var n = 'rc'+ seed;
+var N = 'RC'+ seed;
+var assert = require('assert')
+
+
+// Basic usage
+process.env[n+'_someOpt__a'] = 42
+process.env[n+'_someOpt__x__'] = 99
+process.env[n+'_someOpt__a__b'] = 186
+process.env[n+'_someOpt__a__b__c'] = 243
+process.env[n+'_someOpt__x__y'] = 1862
+process.env[n+'_someOpt__z'] = 186577
+
+// Should ignore empty strings from orphaned '__'
+process.env[n+'_someOpt__z__x__'] = 18629
+process.env[n+'_someOpt__w__w__'] = 18629
+
+// Leading '__' should ignore everything up to 'z'
+process.env[n+'___z__i__'] = 9999
+
+// should ignore case for config name section.
+process.env[N+'_test_upperCase'] = 187
+
+function testPrefix(prefix) {
+	var config = require('../')(prefix, {
+	  option: true
+	})
+
+	console.log('\n\n------ nested-env-vars ------\n',{prefix: prefix}, '\n', config);
+
+	assert.equal(config.option, true)
+	assert.equal(config.someOpt.a, 42)
+	assert.equal(config.someOpt.x, 99)
+	// Should not override `a` once it's been set
+	assert.equal(config.someOpt.a/*.b*/, 42)
+	// Should not override `x` once it's been set
+	assert.equal(config.someOpt.x/*.y*/, 99)
+	assert.equal(config.someOpt.z, 186577)
+	// Should not override `z` once it's been set
+	assert.equal(config.someOpt.z/*.x*/, 186577)
+	assert.equal(config.someOpt.w.w, 18629)
+	assert.equal(config.z.i, 9999)
+
+	assert.equal(config.test_upperCase, 187)
+}
+
+testPrefix(n);
+testPrefix(N);