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/prismjs/plugins/command-line/prism-command-line.css

@@ -0,0 +1,43 @@
+.command-line-prompt {
+	border-right: 1px solid #999;
+	display: block;
+	float: left;
+	font-size: 100%;
+	letter-spacing: -1px;
+	margin-right: 1em;
+	pointer-events: none;
+	text-align: right;
+
+	-webkit-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+}
+
+.command-line-prompt > span:before {
+	opacity: 0.7;
+	content: ' ';
+	display: block;
+	padding-right: 0.8em;
+}
+
+.command-line-prompt > span[data-user]:before {
+	content: "[" attr(data-user) "@" attr(data-host) "] $";
+}
+
+.command-line-prompt > span[data-user="root"]:before {
+	content: "[" attr(data-user) "@" attr(data-host) "] #";
+}
+
+.command-line-prompt > span[data-prompt]:before {
+	content: attr(data-prompt);
+}
+
+.command-line-prompt > span[data-continuation-prompt]:before {
+	content: attr(data-continuation-prompt);
+}
+
+.command-line span.token.output {
+	/* Make shell output lines a bit lighter to distinguish them from shell commands */
+	opacity: 0.7;
+}