Initial commit: Luftglanz drone website with integrated AI chat assistant

Features:
- Complete Luftglanz drone cleaning website
- AI chat assistant integrated with OpenAI API
- Expert product advice for AGO Quart and Mellerud cleaning products
- Formal German language support (Sie form)
- Secure PHP backend for API calls
- Responsive design with mobile support
- Product-specific knowledge base
- Safety statements from manufacturers
- Multi-page integration (index, products, services, contact)

Technical components:
- AI chat widget (js/ai-chat.js)
- Chat styling (css/components/ai-chat.css)
- Backend API (ai-chat-api.php)
- Product knowledge base with detailed specifications
- Demo and documentation files

css/components/footer.css

@@ -0,0 +1,23 @@
+.footer {
+    background-color: #2c3e50;
+    color: #ecf0f1;
+    text-align: center;
+    padding: 20px 0;
+    position: relative;
+    bottom: 0;
+    width: 100%;
+}
+
+.footer a {
+    color: #ecf0f1;
+    text-decoration: none;
+}
+
+.footer a:hover {
+    text-decoration: underline;
+}
+
+.footer p {
+    margin: 0;
+    font-size: 14px;
+}