Database eingefügt

.claude/settings.local.json

@@ -0,0 +1,9 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(npm run dev:*)"
+    ],
+    "deny": [],
+    "ask": []
+  }
+}

.gitignore

@@ -22,3 +22,5 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+.env

CLAUDE.md

@@ -0,0 +1,87 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Development Commands
+
+- `npm run dev` - Start development server (Vite, runs on port 8080)
+- `npm run build` - Build for production
+- `npm run build:dev` - Build in development mode
+- `npm run lint` - Run ESLint to check code quality
+- `npm run preview` - Preview production build locally
+
+## Project Architecture
+
+This is a React + TypeScript application built with Vite, targeting the German renewable energy market. The app connects energy customers with solar and wind installation professionals.
+
+### Core Technologies
+- **Vite** - Build tool and dev server
+- **React 18** - UI framework
+- **TypeScript** - Type safety
+- **React Router** - Client-side routing
+- **TanStack Query** - Server state management
+- **Supabase** - Backend database and authentication
+- **shadcn/ui** - Component library built on Radix UI
+- **Tailwind CSS** - Styling with custom energy-themed colors
+
+### Application Structure
+
+**Pages** (`src/pages/`):
+- `Index.tsx` - Landing page with hero section and energy type overview
+- `Solar.tsx` / `Wind.tsx` - Energy-specific information pages
+- `InstallateurFinden.tsx` - Installer search/listing page
+- `KostenloseBeratung.tsx` - Free consultation request page
+- `UnternehmenListen.tsx` - Business listing page
+
+**Components** (`src/components/`):
+- Standard layout components: `Header`, `Footer`, `HeroSection`
+- Feature components: `EnergyTypesSection`, `WhyChooseUsSection`, `EnergyTypeCard`
+- Complete shadcn/ui component library in `ui/` subdirectory
+
+**Database Integration** (`src/integrations/supabase/`):
+- `client.ts` - Supabase client configuration
+- `types.ts` - Auto-generated TypeScript types from Supabase schema
+
+### Database Schema (Supabase)
+
+Key tables:
+- `installers` - Installation companies with location, certifications, ratings
+- `quotes` - Customer quote requests with project details
+- `installer_quotes` - Installer responses to quote requests
+- `reviews` - Customer reviews for installers
+- `contact_clicks` - Analytics for installer contact interactions
+- `analytics_events` - General application usage analytics
+
+Energy types: `solar` | `wind`
+Quote status: `pending` | `accepted` | `rejected` | `expired`
+
+### Styling System
+
+Custom Tailwind configuration with energy-themed colors:
+- `solar` colors - Orange/yellow theme for solar energy
+- `wind` colors - Blue/teal theme for wind energy
+- CSS custom properties defined in `src/index.css`
+- Gradient backgrounds and shadows for visual branding
+
+### Path Aliases
+- `@/*` maps to `src/*` for clean imports
+
+### TypeScript Configuration
+- Relaxed strictness settings for rapid development
+- Path mapping configured for `@/` alias
+- Composite project structure with separate app and node configs
+
+### Routing Architecture
+All routes are defined in `src/App.tsx`:
+- `/` - Homepage
+- `/solar`, `/wind` - Energy type pages  
+- `/installateur-finden` - Installer search
+- `/kostenlose-beratung` - Consultation requests
+- `/unternehmen-listen` - Business listings
+- `*` - 404 catch-all
+
+### Component Patterns
+- Functional components with hooks
+- shadcn/ui components for consistent design
+- Lucide React icons throughout the application
+- German language content and URLs

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@@ -6234,7 +6149,6 @@
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@@ -6257,7 +6171,6 @@
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@@ -6267,7 +6180,6 @@
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@@ -6286,7 +6198,6 @@
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-      "dev": true,
       "license": "MIT",
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@@ -6301,7 +6212,6 @@
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-      "dev": true,
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@@ -6311,14 +6221,12 @@
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/string-width-cjs/node_modules/strip-ansi": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -6331,7 +6239,6 @@
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-      "dev": true,
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@@ -6348,7 +6255,6 @@
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-      "dev": true,
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@@ -6361,7 +6267,6 @@
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-      "dev": true,
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@@ -6384,7 +6289,6 @@
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@jridgewell/gen-mapping": "^0.3.2",
@@ -6420,7 +6324,6 @@
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       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
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-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">= 0.4"
@@ -6443,7 +6346,6 @@
       "version": "3.4.17",
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-3.4.17.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@alloc/quick-lru": "^5.2.0",
@@ -6490,7 +6392,6 @@
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "any-promise": "^1.0.0"
@@ -6500,7 +6401,6 @@
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       "resolved": "https://registry.npmjs.org/thenify-all/-/thenify-all-1.6.0.tgz",
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-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "thenify": ">= 3.1.0 < 4"
@@ -6519,7 +6419,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
@@ -6551,7 +6450,6 @@
       "version": "0.1.13",
       "resolved": "https://registry.npmjs.org/ts-interface-checker/-/ts-interface-checker-0.1.13.tgz",
       "integrity": "sha512-Y/arvbn+rrz3JCKl9C4kVNfTfSm2/mEp5FSz5EsZSANGPSlQrpRI5M4PKF+mJnE52jOO90PnPSc3Ur3bTQw0gA==",
-      "dev": true,
       "license": "Apache-2.0"
     },
     "node_modules/tslib": {
@@ -6714,7 +6612,6 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/vaul": {
@@ -6832,7 +6729,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
       "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "isexe": "^2.0.0"
@@ -6858,7 +6754,6 @@
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
       "integrity": "sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-styles": "^6.1.0",
@@ -6877,7 +6772,6 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
       "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-styles": "^4.0.0",
@@ -6895,7 +6789,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -6905,14 +6798,12 @@
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
       "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/wrap-ansi-cjs/node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
       "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "emoji-regex": "^8.0.0",
@@ -6927,7 +6818,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
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-      "dev": true,
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       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -6940,7 +6830,6 @@
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       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.1.tgz",
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-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=12"
@@ -6974,7 +6863,6 @@
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.6.0.tgz",
       "integrity": "sha512-a6ae//JvKDEra2kdi1qzCyrJW/WZCgFi8ydDV+eXExl95t+5R+ijnqHJbz9tmMh8FUjx3iv2fCQ4dclAQlO2UQ==",
-      "dev": true,
       "license": "ISC",
       "bin": {
         "yaml": "bin.mjs"

src/App.tsx

@@ -6,6 +6,9 @@ import { BrowserRouter, Routes, Route } from "react-router-dom";
 import Index from "./pages/Index";
 import Solar from "./pages/Solar";
 import Wind from "./pages/Wind";
+import InstallateurFinden from "./pages/InstallateurFinden";
+import KostenloseBeratung from "./pages/KostenloseBeratung";
+import UnternehmenListen from "./pages/UnternehmenListen";
 import NotFound from "./pages/NotFound";
 
 const queryClient = new QueryClient();
@@ -15,11 +18,14 @@ const App = () => (
     <TooltipProvider>
       <Toaster />
       <Sonner />
-      <BrowserRouter>
+      <BrowserRouter future={{ v7_startTransition: true, v7_relativeSplatPath: true }}>
         <Routes>
           <Route path="/" element={<Index />} />
           <Route path="/solar" element={<Solar />} />
           <Route path="/wind" element={<Wind />} />
+          <Route path="/installateur-finden" element={<InstallateurFinden />} />
+          <Route path="/kostenlose-beratung" element={<KostenloseBeratung />} />
+          <Route path="/unternehmen-listen" element={<UnternehmenListen />} />
           {/* ADD ALL CUSTOM ROUTES ABOVE THE CATCH-ALL "*" ROUTE */}
           <Route path="*" element={<NotFound />} />
         </Routes>

src/components/CalculatorNavigation.tsx

@@ -0,0 +1,146 @@
+import React from 'react';
+import { Card, CardContent } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { Sun, Wind, Calculator, ArrowRight, Zap } from 'lucide-react';
+import { Link } from 'react-router-dom';
+
+const CalculatorNavigation = () => {
+  return (
+    <section className="py-20 bg-gradient-to-br from-slate-50 via-blue-50 to-green-50">
+      <div className="container mx-auto px-4">
+        <div className="text-center mb-16">
+          <h2 className="text-3xl md:text-4xl font-bold mb-6 text-gray-800">
+            <Calculator className="inline-block mr-3 text-blue-600" />
+            Einsparungsrechner
+          </h2>
+          <p className="text-xl text-gray-600 max-w-3xl mx-auto leading-relaxed">
+            Berechnen Sie Ihre potentiellen Einsparungen mit unseren 
+            spezialisierten Rechnern für Solar- und Windenergie
+          </p>
+        </div>
+
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-8 max-w-4xl mx-auto">
+          {/* Solar Calculator Card */}
+          <Card className="group hover:shadow-2xl transition-all duration-500 border-0 bg-gradient-to-br from-orange-50 to-yellow-50 overflow-hidden relative">
+            <div className="absolute inset-0 bg-gradient-to-r from-orange-400/5 to-yellow-400/5 group-hover:from-orange-400/10 group-hover:to-yellow-400/10 transition-all duration-500"></div>
+            <CardContent className="p-8 relative z-10">
+              <div className="flex items-start justify-between mb-6">
+                <div className="w-16 h-16 bg-gradient-to-r from-orange-500 to-yellow-500 rounded-2xl flex items-center justify-center group-hover:scale-110 transition-transform duration-300 shadow-lg">
+                  <Sun className="w-8 h-8 text-white" />
+                </div>
+                <div className="bg-orange-100 text-orange-700 px-3 py-1 rounded-full text-sm font-semibold">
+                  Beliebt
+                </div>
+              </div>
+              
+              <h3 className="text-2xl font-bold mb-4 text-gray-800 group-hover:text-orange-600 transition-colors">
+                Solar-Einsparungsrechner
+              </h3>
+              
+              <p className="text-gray-600 mb-6 leading-relaxed">
+                Erfahren Sie, wie viel Sie mit einer Photovoltaik-Anlage sparen können. 
+                Berechnung basierend auf Ihrer Dachgröße, Standort und Energieverbrauch.
+              </p>
+
+              <div className="space-y-3 mb-8">
+                <div className="flex items-center text-sm text-gray-600">
+                  <Zap className="w-4 h-4 mr-2 text-orange-500" />
+                  <span>Monatliche & jährliche Einsparungen</span>
+                </div>
+                <div className="flex items-center text-sm text-gray-600">
+                  <Zap className="w-4 h-4 mr-2 text-orange-500" />
+                  <span>25-Jahre Gesamteinsparungen</span>
+                </div>
+                <div className="flex items-center text-sm text-gray-600">
+                  <Zap className="w-4 h-4 mr-2 text-orange-500" />
+                  <span>Amortisationsdauer</span>
+                </div>
+              </div>
+              
+              <Button 
+                asChild
+                size="lg" 
+                className="w-full bg-gradient-to-r from-orange-500 to-yellow-500 hover:from-orange-600 hover:to-yellow-600 text-white font-semibold shadow-lg hover:shadow-xl transform hover:-translate-y-1 transition-all duration-300"
+              >
+                <Link to="/solar#calculator" className="flex items-center justify-center">
+                  Solar-Rechner öffnen
+                  <ArrowRight className="w-5 h-5 ml-2 group-hover:translate-x-1 transition-transform" />
+                </Link>
+              </Button>
+            </CardContent>
+          </Card>
+
+          {/* Wind Calculator Card */}
+          <Card className="group hover:shadow-2xl transition-all duration-500 border-0 bg-gradient-to-br from-cyan-50 to-emerald-50 overflow-hidden relative">
+            <div className="absolute inset-0 bg-gradient-to-r from-cyan-400/5 to-emerald-400/5 group-hover:from-cyan-400/10 group-hover:to-emerald-400/10 transition-all duration-500"></div>
+            <CardContent className="p-8 relative z-10">
+              <div className="flex items-start justify-between mb-6">
+                <div className="w-16 h-16 bg-gradient-to-r from-cyan-500 to-emerald-500 rounded-2xl flex items-center justify-center group-hover:scale-110 transition-transform duration-300 shadow-lg">
+                  <Wind className="w-8 h-8 text-white animate-spin" />
+                </div>
+                <div className="bg-cyan-100 text-cyan-700 px-3 py-1 rounded-full text-sm font-semibold">
+                  Neu
+                </div>
+              </div>
+              
+              <h3 className="text-2xl font-bold mb-4 text-gray-800 group-hover:text-cyan-600 transition-colors">
+                Windenergie-Rechner
+              </h3>
+              
+              <p className="text-gray-600 mb-6 leading-relaxed">
+                Berechnen Sie das Potential von Windenergie für Ihr Grundstück. 
+                Berücksichtigt Grundstücksgröße, Windgeschwindigkeit und lokale Bestimmungen.
+              </p>
+
+              <div className="space-y-3 mb-8">
+                <div className="flex items-center text-sm text-gray-600">
+                  <Wind className="w-4 h-4 mr-2 text-cyan-500" />
+                  <span>Anlagengröße-Empfehlung</span>
+                </div>
+                <div className="flex items-center text-sm text-gray-600">
+                  <Wind className="w-4 h-4 mr-2 text-cyan-500" />
+                  <span>20-Jahre Einsparpotential</span>
+                </div>
+                <div className="flex items-center text-sm text-gray-600">
+                  <Wind className="w-4 h-4 mr-2 text-cyan-500" />
+                  <span>Förderungen & Zuschüsse</span>
+                </div>
+              </div>
+              
+              <Button 
+                asChild
+                size="lg" 
+                className="w-full bg-gradient-to-r from-cyan-500 to-emerald-500 hover:from-cyan-600 hover:to-emerald-600 text-white font-semibold shadow-lg hover:shadow-xl transform hover:-translate-y-1 transition-all duration-300"
+              >
+                <Link to="/wind#calculator" className="flex items-center justify-center">
+                  Wind-Rechner öffnen
+                  <ArrowRight className="w-5 h-5 ml-2 group-hover:translate-x-1 transition-transform" />
+                </Link>
+              </Button>
+            </CardContent>
+          </Card>
+        </div>
+
+        {/* Bottom CTA */}
+        <div className="text-center mt-16">
+          <p className="text-gray-600 mb-6">
+            Unsicher, welche Lösung für Sie geeignet ist?
+          </p>
+          <Button 
+            asChild
+            variant="outline" 
+            size="lg"
+            className="border-2 border-gray-300 text-gray-700 hover:bg-gray-50 font-semibold"
+          >
+            <Link to="/installateur-finden" className="flex items-center">
+              Alle Installateure ansehen
+              <ArrowRight className="w-4 h-4 ml-2" />
+            </Link>
+          </Button>
+        </div>
+      </div>
+    </section>
+  );
+};
+
+export default CalculatorNavigation;

src/components/EnergyTypeCard.tsx

@@ -8,7 +8,7 @@ interface EnergyTypeCardProps {
   description: string;
   image: string;
   gradient: string;
-  buttonVariant: "solar" | "wind" | "geo" | "battery";
+  buttonVariant: "solar" | "wind";
   href: string;
   features: string[];
 }

src/components/EnergyTypesSection.tsx

@@ -1,8 +1,6 @@
 import EnergyTypeCard from "./EnergyTypeCard";
 import solarImage from "@/assets/solar-installation.jpg";
 import windImage from "@/assets/wind-turbines.jpg";
-import geoImage from "@/assets/geothermal-system.jpg";
-import batteryImage from "@/assets/battery-storage.jpg";
 
 const EnergyTypesSection = () => {
   const energyTypes = [
@@ -33,34 +31,6 @@ const EnergyTypesSection = () => {
         "Wartungsarme Technologie",
         "Ideale Ergänzung zu Solar"
       ]
-    },
-    {
-      title: "Geothermie",
-      description: "Heizen und kühlen Sie Ihr Gebäude mit der natürlichen Erdwärme - effizient und umweltschonend.",
-      image: geoImage,
-      gradient: "bg-gradient-geo",
-      buttonVariant: "geo" as const,
-      href: "/geothermie",
-      features: [
-        "Ganzjährig konstante Temperaturen",
-        "Niedrige Betriebskosten",
-        "Heizen und Kühlen in einem System",
-        "Sehr lange Lebensdauer"
-      ]
-    },
-    {
-      title: "Batteriespeicher",
-      description: "Speichern Sie überschüssige Energie und nutzen Sie sie bei Bedarf - für maximale Unabhängigkeit.",
-      image: batteryImage,
-      gradient: "bg-gradient-battery",
-      buttonVariant: "battery" as const,
-      href: "/batteriespeicher",
-      features: [
-        "24/7 Energieverfügbarkeit",
-        "Notstromfunktion",
-        "Intelligente Steuerung",
-        "Erhöhte Eigenverbrauchsquote"
-      ]
     }
   ];
 
@@ -77,7 +47,7 @@ const EnergyTypesSection = () => {
           </p>
         </div>
 
-        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-8">
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-8 max-w-4xl mx-auto">
           {energyTypes.map((type) => (
             <EnergyTypeCard key={type.title} {...type} />
           ))}

src/components/Footer.tsx

@@ -52,16 +52,6 @@ const Footer = () => {
                   Wind-Installateure
                 </Link>
               </li>
-              <li>
-                <Link to="/geothermie" className="text-primary-foreground/80 hover:text-geo transition-colors">
-                  Geothermie-Installateure
-                </Link>
-              </li>
-              <li>
-                <Link to="/batteriespeicher" className="text-primary-foreground/80 hover:text-battery transition-colors">
-                  Batteriespeicher-Installateure
-                </Link>
-              </li>
             </ul>
           </div>
 
@@ -74,11 +64,6 @@ const Footer = () => {
                   Installateur Finden
                 </Link>
               </li>
-              <li>
-                <Link to="/kostenlose-beratung" className="text-primary-foreground/80 hover:text-white transition-colors">
-                  Kostenlose Beratung
-                </Link>
-              </li>
               <li>
                 <Link to="/unternehmen-listen" className="text-primary-foreground/80 hover:text-white transition-colors">
                   Unternehmen Listen

src/components/Header.tsx

@@ -23,12 +23,6 @@ const Header = () => {
             <Link to="/wind" className="text-foreground hover:text-wind transition-colors font-medium">
               Wind
             </Link>
-            <Link to="/geothermie" className="text-foreground hover:text-geo transition-colors font-medium">
-              Geothermie
-            </Link>
-            <Link to="/batteriespeicher" className="text-foreground hover:text-battery transition-colors font-medium">
-              Batteriespeicher
-            </Link>
             <Link to="/installateur-finden" className="text-foreground hover:text-primary transition-colors font-medium">
               Installateur Finden
             </Link>
@@ -39,12 +33,6 @@ const Header = () => {
             <Button variant="outline" size="sm" asChild>
               <Link to="/unternehmen-listen">Unternehmen Listen</Link>
             </Button>
-            <Button variant="hero" size="sm" asChild>
-              <Link to="/kostenlose-beratung">
-                <Phone className="w-4 h-4 mr-2" />
-                Kostenlose Beratung
-              </Link>
-            </Button>
           </div>
 
           {/* Mobile Menu Button */}

src/components/HeroSection.tsx

@@ -1,96 +1,111 @@
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
-import { Search, MapPin, Zap } from "lucide-react";
+import { Search, MapPin, Zap, ArrowRight } from "lucide-react";
 import { Link } from "react-router-dom";
-import heroImage from "@/assets/hero-renewable-energy.jpg";
 
 const HeroSection = () => {
   return (
     <section className="relative min-h-[600px] flex items-center overflow-hidden">
-      {/* Background Image with Overlay */}
+      {/* Background Image with Minimal Overlay */}
       <div className="absolute inset-0">
         <img
-          src={heroImage}
+          src="/sun_flow_banner.png"
-          alt="Renewable Energy Solutions in Germany"
+          alt="Sun Flow Banner - Renewable Energy Solutions in Germany"
           className="w-full h-full object-cover"
         />
-        <div className="absolute inset-0 bg-gradient-to-r from-primary/80 via-primary/60 to-transparent"></div>
+        {/* Subtle overlay for text readability */}
+        <div className="absolute inset-0 bg-gradient-to-r from-black/30 via-black/20 to-transparent"></div>
       </div>
 
       {/* Content */}
       <div className="container mx-auto px-4 relative z-10">
         <div className="max-w-2xl text-white">
-          <h1 className="text-4xl md:text-5xl lg:text-6xl font-bold mb-6 leading-tight">
+          {/* Clean headline with subtle color accents */}
+          <div className="mb-6">
+            <h1 className="text-4xl md:text-5xl lg:text-6xl font-bold leading-tight">
               Finden Sie Ihren perfekten{" "}
-            <span className="bg-gradient-to-r from-solar via-wind to-geo bg-clip-text text-transparent">
+              <span className="text-yellow-300">
-              Erneuerbaren Energie
+                Erneuerbaren
               </span>{" "}
+              <span className="text-cyan-200">
+                Energie
+              </span>{" "}
+              <span className="text-green-200">
                 Installateur
+              </span>
             </h1>
+          </div>
           
-          <p className="text-xl md:text-2xl text-white/90 mb-8 leading-relaxed">
+          {/* Clean description with subtle accents */}
-            Vergleichen Sie qualifizierte Fachbetriebe für Solar, Wind, Geothermie 
+          <p className="text-xl md:text-2xl text-white/95 mb-8 leading-relaxed font-medium">
-            und Batteriespeicher in Ihrer Region. Kostenlos und unverbindlich.
+            Vergleichen Sie qualifizierte Fachbetriebe für{" "}
+            <span className="text-yellow-200 font-semibold">Solar</span> und{" "}
+            <span className="text-cyan-200 font-semibold">Wind</span> 
+            in Ihrer Region.{" "}
+            <span className="text-green-200 font-semibold">Kostenlos</span> und{" "}
+            <span className="text-white font-semibold">unverbindlich</span>.
           </p>
 
-          {/* Search Box */}
+          {/* Clean search box */}
-          <div className="bg-white/10 backdrop-blur-sm border border-white/20 rounded-2xl p-6 mb-8">
+          <div className="bg-white/15 backdrop-blur-sm border border-white/30 rounded-2xl p-6 mb-8">
             <div className="flex flex-col md:flex-row gap-4">
-              <div className="flex-1 relative">
+              <div className="flex-1 relative group">
-                <MapPin className="absolute left-3 top-1/2 transform -translate-y-1/2 text-white/60 w-5 h-5" />
+                <MapPin className="absolute left-3 top-1/2 transform -translate-y-1/2 text-cyan-200 w-5 h-5" />
                 <Input
                   placeholder="PLZ oder Stadt eingeben..."
-                  className="pl-10 bg-white/10 border-white/20 text-white placeholder:text-white/60 h-12"
+                  className="pl-10 bg-white/20 border-white/30 text-white placeholder:text-white/70 h-12 focus:border-cyan-200 focus:ring-cyan-200/20 transition-all duration-300"
                 />
               </div>
-              <div className="flex-1 relative">
+              <div className="flex-1 relative group">
-                <Zap className="absolute left-3 top-1/2 transform -translate-y-1/2 text-white/60 w-5 h-5" />
+                <Zap className="absolute left-3 top-1/2 transform -translate-y-1/2 text-yellow-200 w-5 h-5" />
-                <select className="w-full h-12 pl-10 pr-4 bg-white/10 border border-white/20 rounded-lg text-white appearance-none">
+                <select className="w-full h-12 pl-10 pr-4 bg-white/20 border-white/30 rounded-lg text-white appearance-none focus:border-yellow-200 focus:ring-yellow-200/20 transition-all duration-300">
                   <option value="">Energieart wählen</option>
                   <option value="solar">Solar</option>
                   <option value="wind">Wind</option>
-                  <option value="geothermal">Geothermie</option>
-                  <option value="battery">Batteriespeicher</option>
                 </select>
               </div>
-              <Button variant="hero" size="lg" className="bg-white text-primary hover:bg-white/90">
+              <Button 
+                variant="hero" 
+                size="lg" 
+                className="bg-cyan-600 hover:bg-cyan-700 text-white border-0 shadow-lg hover:shadow-xl transition-all duration-300"
+              >
                 <Search className="w-5 h-5 mr-2" />
                 Installateur Finden
               </Button>
             </div>
           </div>
 
-          {/* CTA Buttons */}
+          {/* Clean CTA buttons */}
           <div className="flex flex-col sm:flex-row gap-4">
-            <Button variant="hero" size="xl" asChild>
+            <Button 
-              <Link to="/kostenlose-beratung">
+              variant="outline" 
-                Kostenlose Beratung Anfordern
+              size="xl" 
-              </Link>
+              className="border-2 border-white/40 text-white hover:bg-white hover:text-primary bg-white/10 backdrop-blur-sm hover:shadow-lg transition-all duration-300"
-            </Button>
+            >
-            <Button variant="outline" size="xl" className="border-white/30 text-white hover:bg-white hover:text-primary">
+              <Link to="/installateur-finden" className="flex items-center">
-              <Link to="/installateur-finden">
                 Alle Installateure Ansehen
+                <ArrowRight className="w-5 h-5 ml-2 group-hover:translate-x-1 transition-transform" />
               </Link>
             </Button>
           </div>
         </div>
       </div>
 
-      {/* Floating Stats */}
+      {/* Clean floating stats */}
       <div className="absolute bottom-8 right-8 hidden xl:block">
-        <div className="bg-white/10 backdrop-blur-sm border border-white/20 rounded-2xl p-6 text-white">
+        <div className="bg-white/20 backdrop-blur-sm border border-white/30 rounded-2xl p-6 text-white shadow-lg">
           <div className="grid grid-cols-3 gap-6 text-center">
             <div>
-              <div className="text-2xl font-bold">500+</div>
+              <div className="text-3xl font-bold text-yellow-200">500+</div>
-              <div className="text-sm text-white/80">Installateure</div>
+              <div className="text-sm text-white/90 font-medium">Installateure</div>
             </div>
             <div>
-              <div className="text-2xl font-bold">2,500+</div>
+              <div className="text-3xl font-bold text-cyan-200">2,500+</div>
-              <div className="text-sm text-white/80">Projekte</div>
+              <div className="text-sm text-white/90 font-medium">Projekte</div>
             </div>
             <div>
-              <div className="text-2xl font-bold">4.8★</div>
+              <div className="text-3xl font-bold text-green-200">4.8★</div>
-              <div className="text-sm text-white/80">Bewertung</div>
+              <div className="text-sm text-white/90 font-medium">Bewertung</div>
             </div>
           </div>
         </div>

src/components/SolarCalculator.tsx

@@ -0,0 +1,538 @@
+import React, { useState, useEffect } from 'react';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
+import { HelpCircle } from 'lucide-react';
+import { analyticsService, quoteService } from '@/lib/database';
+
+interface CalculatorResults {
+  monthlySavings: number;
+  yearlySavings: number;
+  lifetimeSavings: number;
+  systemSize: number;
+  installCost: number;
+  taxCredit: number;
+  netCost: number;
+  paybackPeriod: number;
+}
+
+const SolarCalculator = () => {
+  const [monthlyBill, setMonthlyBill] = useState<string>('150');
+  const [homeSize, setHomeSize] = useState<string>('2000');
+  const [roofType, setRoofType] = useState<string>('asphalt');
+  const [sunlightHours, setSunlightHours] = useState<string>('6');
+  const [electricityRate, setElectricityRate] = useState<string>('0.12');
+  const [zipCode, setZipCode] = useState<string>('');
+  const [results, setResults] = useState<CalculatorResults | null>(null);
+  const [showResults, setShowResults] = useState(false);
+  const [showQuoteForm, setShowQuoteForm] = useState(false);
+  
+  // Quote form fields
+  const [customerName, setCustomerName] = useState('');
+  const [customerEmail, setCustomerEmail] = useState('');
+  const [customerPhone, setCustomerPhone] = useState('');
+
+  const calculateSavings = async () => {
+    const monthlyBillNum = parseFloat(monthlyBill) || 0;
+    const homeSizeNum = parseFloat(homeSize) || 0;
+    const sunlightHoursNum = parseFloat(sunlightHours) || 6;
+    const electricityRateNum = parseFloat(electricityRate) || 0.12;
+
+    if (monthlyBillNum === 0) {
+      alert('Bitte geben Sie Ihre monatliche Stromrechnung ein');
+      return;
+    }
+
+    // Calculate system size based on monthly usage
+    const monthlyUsage = monthlyBillNum / electricityRateNum; // kWh per month
+    const dailyUsage = monthlyUsage / 30; // kWh per day
+    const systemSize = Math.ceil(dailyUsage / sunlightHoursNum); // kW system size
+
+    // Roof type efficiency factors
+    const roofFactors: { [key: string]: number } = {
+      asphalt: 1.0,
+      tile: 0.95,
+      metal: 1.05,
+      flat: 0.9
+    };
+
+    const roofFactor = roofFactors[roofType] || 1.0;
+    const adjustedSystemSize = Math.max(3, Math.min(20, systemSize * roofFactor));
+
+    // Cost calculations (converted to EUR for German market)
+    const costPerWatt = 2.8; // Average cost per watt installed in EUR
+    const installCost = adjustedSystemSize * 1000 * costPerWatt;
+    const federalTaxCredit = installCost * 0.19; // German VAT can be deducted
+    const netCost = installCost - federalTaxCredit;
+
+    // Energy production calculations
+    const annualProduction = adjustedSystemSize * sunlightHoursNum * 365 * 0.85; // 85% efficiency
+    const monthlyProduction = annualProduction / 12;
+    
+    // Savings calculations
+    const monthlySavings = Math.min(monthlyProduction * electricityRateNum, monthlyBillNum * 0.9);
+    const yearlySavings = monthlySavings * 12;
+    const lifetimeSavings = yearlySavings * 25; // 25-year system life
+
+    // Payback period
+    const paybackPeriod = Math.round(netCost / yearlySavings * 10) / 10;
+
+    setResults({
+      monthlySavings: Math.round(monthlySavings),
+      yearlySavings: Math.round(yearlySavings),
+      lifetimeSavings: Math.round(lifetimeSavings),
+      systemSize: Math.round(adjustedSystemSize * 10) / 10,
+      installCost: Math.round(installCost),
+      taxCredit: Math.round(federalTaxCredit),
+      netCost: Math.round(netCost),
+      paybackPeriod
+    });
+
+    setShowResults(true);
+
+    // Track calculator usage
+    try {
+      await analyticsService.trackEvent({
+        event_type: 'solar_calculator_used',
+        page_url: window.location.pathname,
+        user_agent: navigator.userAgent,
+        session_id: sessionStorage.getItem('session_id') || 'anonymous',
+        event_data: {
+          monthly_bill: monthlyBillNum,
+          home_size: homeSizeNum,
+          roof_type: roofType,
+          sunlight_hours: sunlightHoursNum,
+          electricity_rate: electricityRateNum,
+          zip_code: zipCode,
+          calculated_savings: {
+            monthly: Math.round(monthlySavings),
+            yearly: Math.round(yearlySavings),
+            lifetime: Math.round(lifetimeSavings),
+            system_size: Math.round(adjustedSystemSize * 10) / 10,
+            payback_period: paybackPeriod
+          }
+        }
+      });
+    } catch (error) {
+      console.error('Error tracking calculator usage:', error);
+    }
+  };
+
+  // Auto-populate electricity rate based on ZIP code (German postal codes)
+  useEffect(() => {
+    if (zipCode.length === 5) {
+      // Simplified German electricity rates by region
+      const rates: { [key: string]: number } = {
+        '0': 0.32, // Eastern Germany
+        '1': 0.34, // Berlin/Brandenburg
+        '2': 0.33, // Northern Germany
+        '3': 0.35, // Central Germany
+        '4': 0.33, // Western Germany
+        '5': 0.34, // NRW
+        '6': 0.35, // Hessen/Baden-Württemberg
+        '7': 0.33, // Baden-Württemberg
+        '8': 0.32, // Bavaria
+        '9': 0.31  // Bavaria
+      };
+      
+      const firstDigit = zipCode[0];
+      const rate = rates[firstDigit] || 0.33;
+      setElectricityRate(rate.toFixed(2));
+    }
+  }, [zipCode]);
+
+  // Submit quote request
+  const handleQuoteSubmission = async (e: React.FormEvent) => {
+    e.preventDefault();
+    
+    if (!customerName || !customerEmail || !results) {
+      alert('Bitte füllen Sie alle Pflichtfelder aus.');
+      return;
+    }
+
+    try {
+      await quoteService.submitQuote({
+        customer_name: customerName,
+        customer_email: customerEmail,
+        customer_phone: customerPhone,
+        energy_type: 'solar',
+        location: zipCode,
+        monthly_bill: parseFloat(monthlyBill),
+        property_size: parseFloat(homeSize),
+        property_type: 'residential',
+        roof_type: roofType,
+        estimated_cost: results.installCost,
+        estimated_savings: results.yearlySavings,
+        additional_requirements: `Berechnet: ${results.systemSize} kW System, ${results.paybackPeriod} Jahre Amortisation`,
+        status: 'pending'
+      });
+
+      alert('Ihr Angebot wurde erfolgreich eingereicht! Sie erhalten bald Kontakt von qualifizierten Installateuren.');
+      setShowQuoteForm(false);
+      
+      // Reset form
+      setCustomerName('');
+      setCustomerEmail('');
+      setCustomerPhone('');
+      
+    } catch (error) {
+      console.error('Error submitting quote:', error);
+      alert('Fehler beim Senden des Angebots. Bitte versuchen Sie es später erneut.');
+    }
+  };
+
+  const createSavingsChart = () => {
+    if (!results) return null;
+
+    const bars = [
+      { label: 'Monat 1', value: results.monthlySavings },
+      { label: 'Jahr 1', value: results.yearlySavings },
+      { label: '5 Jahre', value: results.yearlySavings * 5 },
+      { label: '10 Jahre', value: results.yearlySavings * 10 },
+      { label: '25 Jahre', value: results.lifetimeSavings }
+    ];
+
+    const maxValue = results.lifetimeSavings;
+
+    return (
+      <div className="flex items-end justify-center h-32 gap-3 mt-4">
+        {bars.map((bar, index) => (
+          <div key={index} className="flex flex-col items-center">
+            <div 
+              className="bg-gradient-to-t from-solar to-solar-light rounded-t-sm w-6 transition-all duration-1000 ease-out"
+              style={{ 
+                height: `${(bar.value / maxValue) * 120}px`,
+                minHeight: '10px'
+              }}
+            ></div>
+            <span className="text-xs text-muted-foreground mt-2 text-center">
+              {bar.label}
+            </span>
+          </div>
+        ))}
+      </div>
+    );
+  };
+
+  return (
+    <div className="bg-gradient-to-br from-blue-900 via-blue-700 to-cyan-500 py-16">
+      <div className="container mx-auto px-4">
+        <div className="bg-white rounded-3xl shadow-2xl overflow-hidden backdrop-blur-sm">
+          {/* Header */}
+          <div className="bg-gradient-to-r from-orange-400 via-orange-500 to-red-500 text-white p-12 text-center relative overflow-hidden">
+            <div className="absolute inset-0 opacity-5">
+              <div className="absolute inset-0" style={{
+                backgroundImage: `url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")`,
+                animation: 'float 20s linear infinite'
+              }}></div>
+            </div>
+            <h2 className="text-4xl md:text-5xl font-bold mb-4 bg-gradient-to-r from-white to-yellow-100 bg-clip-text text-transparent">
+              Solar-Einsparungsrechner
+            </h2>
+            <p className="text-xl opacity-95 font-light">
+              Entdecken Sie, wie viel Sie mit Solarenergie sparen können
+            </p>
+          </div>
+
+          <div className="grid grid-cols-1 lg:grid-cols-2 gap-0">
+            {/* Calculator Section */}
+            <div className="p-8 lg:p-12 bg-gradient-to-br from-slate-50 to-slate-100 border-r border-gray-200">
+              <div className="flex justify-center mb-8">
+                <div className="flex gap-4">
+                  <div className="w-3 h-3 rounded-full bg-blue-500"></div>
+                  <div className="w-3 h-3 rounded-full bg-gray-300"></div>
+                  <div className="w-3 h-3 rounded-full bg-gray-300"></div>
+                </div>
+              </div>
+
+              <h3 className="text-2xl font-bold text-gray-800 mb-8 relative">
+                Berechnen Sie Ihre Solar-Einsparungen
+                <div className="absolute bottom-0 left-0 w-16 h-1 bg-gradient-to-r from-orange-400 to-orange-500 rounded"></div>
+              </h3>
+
+              <Card className="bg-white/70 border-gray-200 backdrop-blur-sm mb-6">
+                <CardContent className="p-6">
+                  <div className="grid gap-6">
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Durchschnittliche monatliche Stromrechnung
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <div className="relative">
+                        <span className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-600 font-semibold">€</span>
+                        <Input
+                          type="number"
+                          value={monthlyBill}
+                          onChange={(e) => setMonthlyBill(e.target.value)}
+                          placeholder="150"
+                          className="pl-8 h-12 border-2 border-gray-200 focus:border-blue-500"
+                        />
+                      </div>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Hausgröße (m²)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Input
+                        type="number"
+                        value={homeSize}
+                        onChange={(e) => setHomeSize(e.target.value)}
+                        placeholder="200"
+                        className="h-12 border-2 border-gray-200 focus:border-blue-500"
+                      />
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Dachtyp
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Select value={roofType} onValueChange={setRoofType}>
+                        <SelectTrigger className="h-12 border-2 border-gray-200">
+                          <SelectValue />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="asphalt">Ziegeldach</SelectItem>
+                          <SelectItem value="tile">Tonziegel</SelectItem>
+                          <SelectItem value="metal">Metalldach</SelectItem>
+                          <SelectItem value="flat">Flachdach</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+                </CardContent>
+              </Card>
+
+              <Card className="bg-white/70 border-gray-200 backdrop-blur-sm mb-8">
+                <CardContent className="p-6">
+                  <div className="grid gap-6">
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Tägliche Sonnenstunden
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Select value={sunlightHours} onValueChange={setSunlightHours}>
+                        <SelectTrigger className="h-12 border-2 border-gray-200">
+                          <SelectValue />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="4">4 Stunden (Weniger sonnige Gebiete)</SelectItem>
+                          <SelectItem value="5">5 Stunden (Mäßige Sonne)</SelectItem>
+                          <SelectItem value="6">6 Stunden (Gute Sonneneinstrahlung)</SelectItem>
+                          <SelectItem value="7">7 Stunden (Sehr sonnig)</SelectItem>
+                          <SelectItem value="8">8+ Stunden (Ausgezeichnete Sonne)</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Strompreis (pro kWh)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <div className="relative">
+                        <span className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-600 font-semibold">€</span>
+                        <Input
+                          type="number"
+                          value={electricityRate}
+                          onChange={(e) => setElectricityRate(e.target.value)}
+                          step="0.01"
+                          placeholder="0.33"
+                          className="pl-8 h-12 border-2 border-gray-200 focus:border-blue-500"
+                        />
+                      </div>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Postleitzahl
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Input
+                        type="text"
+                        value={zipCode}
+                        onChange={(e) => setZipCode(e.target.value)}
+                        placeholder="12345"
+                        pattern="[0-9]{5}"
+                        className="h-12 border-2 border-gray-200 focus:border-blue-500"
+                      />
+                    </div>
+                  </div>
+                </CardContent>
+              </Card>
+
+              <Button
+                onClick={calculateSavings}
+                className="w-full h-14 text-lg font-bold bg-gradient-to-r from-blue-600 to-blue-800 hover:from-blue-700 hover:to-blue-900 transform hover:-translate-y-1 transition-all duration-300 shadow-lg hover:shadow-xl"
+              >
+                Meine Einsparungen berechnen
+              </Button>
+            </div>
+
+            {/* Results Section */}
+            <div className="p-8 lg:p-12 bg-gradient-to-br from-white to-gray-50">
+              <h3 className="text-2xl font-bold text-gray-800 mb-8 relative">
+                Ihre Solar-Einsparungen
+                <div className="absolute bottom-0 left-0 w-16 h-1 bg-gradient-to-r from-blue-400 to-cyan-400 rounded"></div>
+              </h3>
+
+              {showResults && results ? (
+                <div className="space-y-6 animate-in fade-in duration-500">
+                  <Card className="bg-gradient-to-r from-purple-600 to-purple-800 text-white">
+                    <CardContent className="p-6 text-center">
+                      <div className="text-3xl font-bold mb-1">€{results.monthlySavings}</div>
+                      <div className="opacity-90">Monatliche Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-r from-green-600 to-green-800 text-white">
+                    <CardContent className="p-6 text-center">
+                      <div className="text-3xl font-bold mb-1">€{results.yearlySavings.toLocaleString()}</div>
+                      <div className="opacity-90">Jährliche Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-r from-orange-600 to-red-600 text-white">
+                    <CardContent className="p-6 text-center">
+                      <div className="text-3xl font-bold mb-1">€{results.lifetimeSavings.toLocaleString()}</div>
+                      <div className="opacity-90">25-Jahre Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gray-50 border-gray-200">
+                    <CardHeader>
+                      <CardTitle className="text-center text-gray-800">Kostenaufschlüsselung</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                      <div className="space-y-3 text-sm">
+                        <div className="flex justify-between py-2 border-b border-gray-200">
+                          <span>Anlagengröße:</span>
+                          <span className="font-semibold">{results.systemSize} kW</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-gray-200">
+                          <span>Installationskosten:</span>
+                          <span className="font-semibold">€{results.installCost.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-gray-200">
+                          <span>Förderung/MwSt. (19%):</span>
+                          <span className="font-semibold text-green-600">-€{results.taxCredit.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-gray-200">
+                          <span>Nettokosten:</span>
+                          <span className="font-semibold">€{results.netCost.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 font-bold text-green-600">
+                          <span>Amortisationsdauer:</span>
+                          <span>{results.paybackPeriod} Jahre</span>
+                        </div>
+                      </div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gray-50 border-gray-200">
+                    <CardContent className="p-6">
+                      <h4 className="font-semibold text-center mb-4 text-gray-800">
+                        Einsparungen über die Zeit
+                      </h4>
+                      {createSavingsChart()}
+                    </CardContent>
+                  </Card>
+
+                  {/* Quote Request Button */}
+                  <div className="text-center">
+                    <Button 
+                      onClick={() => setShowQuoteForm(true)}
+                      className="bg-green-600 hover:bg-green-700 text-white font-semibold shadow-lg"
+                      size="lg"
+                    >
+                      Kostenloses Angebot anfordern
+                    </Button>
+                  </div>
+                </div>
+              ) : (
+                <div className="text-center text-gray-500 py-12">
+                  <div className="text-lg mb-2">Bereit zur Berechnung</div>
+                  <div className="text-sm">Füllen Sie das Formular aus und klicken Sie auf "Berechnen"</div>
+                </div>
+              )}
+
+              {/* Quote Form Modal */}
+              {showQuoteForm && (
+                <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
+                  <Card className="max-w-md w-full mx-4">
+                    <CardHeader>
+                      <CardTitle>Kostenloses Angebot anfordern</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                      <form onSubmit={handleQuoteSubmission} className="space-y-4">
+                        <div>
+                          <label className="block text-sm font-semibold text-gray-700 mb-2">
+                            Name *
+                          </label>
+                          <Input
+                            type="text"
+                            value={customerName}
+                            onChange={(e) => setCustomerName(e.target.value)}
+                            required
+                            placeholder="Ihr vollständiger Name"
+                          />
+                        </div>
+                        
+                        <div>
+                          <label className="block text-sm font-semibold text-gray-700 mb-2">
+                            E-Mail *
+                          </label>
+                          <Input
+                            type="email"
+                            value={customerEmail}
+                            onChange={(e) => setCustomerEmail(e.target.value)}
+                            required
+                            placeholder="ihre.email@beispiel.de"
+                          />
+                        </div>
+                        
+                        <div>
+                          <label className="block text-sm font-semibold text-gray-700 mb-2">
+                            Telefon (optional)
+                          </label>
+                          <Input
+                            type="tel"
+                            value={customerPhone}
+                            onChange={(e) => setCustomerPhone(e.target.value)}
+                            placeholder="+49 123 456 7890"
+                          />
+                        </div>
+
+                        <div className="flex gap-3 pt-4">
+                          <Button
+                            type="button"
+                            variant="outline"
+                            onClick={() => setShowQuoteForm(false)}
+                            className="flex-1"
+                          >
+                            Abbrechen
+                          </Button>
+                          <Button
+                            type="submit"
+                            className="flex-1 bg-green-600 hover:bg-green-700"
+                          >
+                            Angebot anfordern
+                          </Button>
+                        </div>
+                      </form>
+                    </CardContent>
+                  </Card>
+                </div>
+              )}
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default SolarCalculator;

src/components/WhyChooseUsSection.tsx

@@ -19,13 +19,13 @@ const WhyChooseUsSection = () => {
       icon: Award,
       title: "Beste Preise",
       description: "Durch unseren Vergleich erhalten Sie garantiert die besten Konditionen für Ihr Projekt.",
-      gradient: "bg-gradient-geo"
+      gradient: "bg-gradient-solar"
     },
     {
       icon: Clock,
       title: "Schnelle Vermittlung",
       description: "In nur wenigen Minuten erhalten Sie passende Installateur-Vorschläge für Ihre Region.",
-      gradient: "bg-gradient-battery"
+      gradient: "bg-gradient-wind"
     },
     {
       icon: HeartHandshake,

src/components/WindCalculator.tsx

@@ -0,0 +1,478 @@
+import React, { useState, useEffect } from 'react';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
+import { HelpCircle, Wind, Zap } from 'lucide-react';
+import { analyticsService } from '@/lib/database';
+
+interface WindCalculatorResults {
+  monthlySavings: number;
+  yearlySavings: number;
+  lifetimeSavings: number;
+  turbineSize: number;
+  installCost: number;
+  taxCredit: number;
+  netCost: number;
+  paybackPeriod: number;
+}
+
+const WindCalculator = () => {
+  const [monthlyBill, setMonthlyBill] = useState<string>('150');
+  const [propertySize, setPropertySize] = useState<string>('2');
+  const [zoning, setZoning] = useState<string>('rural');
+  const [windSpeed, setWindSpeed] = useState<string>('12');
+  const [turbineHeight, setTurbineHeight] = useState<string>('80');
+  const [electricityRate, setElectricityRate] = useState<string>('0.33');
+  const [zipCode, setZipCode] = useState<string>('');
+  const [results, setResults] = useState<WindCalculatorResults | null>(null);
+  const [showResults, setShowResults] = useState(false);
+
+  const calculateWindSavings = async () => {
+    const monthlyBillNum = parseFloat(monthlyBill) || 0;
+    const propertySizeNum = parseFloat(propertySize) || 0;
+    const windSpeedNum = parseFloat(windSpeed) || 12;
+    const turbineHeightNum = parseFloat(turbineHeight) || 80;
+    const electricityRateNum = parseFloat(electricityRate) || 0.33;
+
+    if (monthlyBillNum === 0) {
+      alert('Bitte geben Sie Ihre monatliche Stromrechnung ein');
+      return;
+    }
+
+    // Wind power calculation (simplified for German market)
+    const airDensity = 1.225; // kg/m³ at sea level
+    const powerCoefficient = 0.35; // Typical for small wind turbines
+    const efficiency = 0.85;
+
+    // Determine turbine size based on property and zoning
+    let maxTurbineKW = 0;
+    const zoningSizeFactors: { [key: string]: number } = {
+      rural: 1.5,
+      agricultural: 2.0,
+      suburban: 0.8,
+      urban: 0.5
+    };
+
+    const sizeFactor = zoningSizeFactors[zoning] || 1.0;
+    
+    // Base turbine size on property size and height allowance
+    if (propertySizeNum >= 0.8 && turbineHeightNum >= 80) { // 0.8 hectares ≈ 2 acres
+      maxTurbineKW = Math.min(20, propertySizeNum * 3 * sizeFactor);
+    } else if (propertySizeNum >= 0.4 && turbineHeightNum >= 60) {
+      maxTurbineKW = Math.min(10, propertySizeNum * 2 * sizeFactor);
+    } else {
+      maxTurbineKW = Math.min(5, propertySizeNum * 1.5 * sizeFactor);
+    }
+
+    // Wind speed factor affects actual output
+    let windSpeedFactor = 1.0;
+    if (windSpeedNum >= 15) windSpeedFactor = 1.4;
+    else if (windSpeedNum >= 12) windSpeedFactor = 1.0;
+    else if (windSpeedNum >= 10) windSpeedFactor = 0.7;
+    else windSpeedFactor = 0.4;
+
+    const effectiveTurbineKW = maxTurbineKW * windSpeedFactor;
+    
+    // Height bonus (higher = better wind)
+    let heightFactor = 1.0;
+    if (turbineHeightNum >= 120) heightFactor = 1.3;
+    else if (turbineHeightNum >= 100) heightFactor = 1.2;
+    else if (turbineHeightNum >= 80) heightFactor = 1.1;
+    else if (turbineHeightNum >= 60) heightFactor = 1.0;
+    else heightFactor = 0.9;
+
+    const finalTurbineKW = Math.max(1, effectiveTurbineKW * heightFactor);
+
+    // Annual energy production (kWh/year)
+    // Small wind turbines typically produce 25-35% capacity factor
+    const capacityFactor = Math.min(0.35, windSpeedNum * 0.025);
+    const annualProduction = finalTurbineKW * 8760 * capacityFactor; // 8760 hours/year
+    const monthlyProduction = annualProduction / 12;
+
+    // Cost calculations (adapted for German market)
+    const costPerKW = 6500; // EUR - Higher than solar due to complexity, adapted for German market
+    const installCost = finalTurbineKW * costPerKW;
+    const germanIncentives = installCost * 0.25; // KfW subsidies and regional incentives
+    const netCost = installCost - germanIncentives;
+
+    // Savings calculations
+    const monthlyUsage = monthlyBillNum / electricityRateNum;
+    const monthlySavings = Math.min(monthlyProduction * electricityRateNum, monthlyBillNum * 0.8);
+    const yearlySavings = monthlySavings * 12;
+    const lifetimeSavings = yearlySavings * 20; // 20-year turbine life
+
+    // Payback period
+    const paybackPeriod = Math.round(netCost / yearlySavings * 10) / 10;
+
+    setResults({
+      monthlySavings: Math.round(monthlySavings),
+      yearlySavings: Math.round(yearlySavings),
+      lifetimeSavings: Math.round(lifetimeSavings),
+      turbineSize: Math.round(finalTurbineKW * 10) / 10,
+      installCost: Math.round(installCost),
+      taxCredit: Math.round(germanIncentives),
+      netCost: Math.round(netCost),
+      paybackPeriod
+    });
+
+    setShowResults(true);
+
+    // Track wind calculator usage
+    try {
+      await analyticsService.trackEvent({
+        event_type: 'wind_calculator_used',
+        page_url: window.location.pathname,
+        user_agent: navigator.userAgent,
+        session_id: sessionStorage.getItem('session_id') || 'anonymous',
+        event_data: {
+          monthly_bill: monthlyBillNum,
+          property_size: propertySizeNum,
+          zoning: zoning,
+          wind_speed: windSpeedNum,
+          turbine_height: turbineHeightNum,
+          electricity_rate: electricityRateNum,
+          zip_code: zipCode,
+          calculated_savings: {
+            monthly: Math.round(monthlySavings),
+            yearly: Math.round(yearlySavings),
+            lifetime: Math.round(lifetimeSavings),
+            turbine_size: Math.round(finalTurbineKW * 10) / 10,
+            payback_period: paybackPeriod
+          }
+        }
+      });
+    } catch (error) {
+      console.error('Error tracking wind calculator usage:', error);
+    }
+  };
+
+  // Auto-populate electricity rate based on German ZIP code
+  useEffect(() => {
+    if (zipCode.length === 5) {
+      // German electricity rates by region (higher than solar calculator due to wind being less common)
+      const rates: { [key: string]: number } = {
+        '0': 0.34, // Eastern Germany
+        '1': 0.36, // Berlin/Brandenburg  
+        '2': 0.35, // Northern Germany (better wind resources)
+        '3': 0.37, // Central Germany
+        '4': 0.35, // Western Germany
+        '5': 0.36, // NRW
+        '6': 0.37, // Hessen/Baden-Württemberg
+        '7': 0.35, // Baden-Württemberg
+        '8': 0.34, // Bavaria
+        '9': 0.33  // Bavaria
+      };
+      
+      const firstDigit = zipCode[0];
+      const rate = rates[firstDigit] || 0.35;
+      setElectricityRate(rate.toFixed(2));
+    }
+  }, [zipCode]);
+
+  const createSavingsChart = () => {
+    if (!results) return null;
+
+    const bars = [
+      { label: 'Monat 1', value: results.monthlySavings },
+      { label: 'Jahr 1', value: results.yearlySavings },
+      { label: '5 Jahre', value: results.yearlySavings * 5 },
+      { label: '10 Jahre', value: results.yearlySavings * 10 },
+      { label: '20 Jahre', value: results.lifetimeSavings }
+    ];
+
+    const maxValue = results.lifetimeSavings;
+
+    return (
+      <div className="flex items-end justify-center h-32 gap-3 mt-4">
+        {bars.map((bar, index) => (
+          <div key={index} className="flex flex-col items-center">
+            <div 
+              className="bg-gradient-to-t from-wind-dark to-wind-light rounded-t-sm w-6 transition-all duration-1000 ease-out animate-pulse"
+              style={{ 
+                height: `${(bar.value / maxValue) * 120}px`,
+                minHeight: '10px'
+              }}
+            ></div>
+            <span className="text-xs text-muted-foreground mt-2 text-center">
+              {bar.label}
+            </span>
+          </div>
+        ))}
+      </div>
+    );
+  };
+
+  return (
+    <div className="bg-gradient-to-br from-teal-800 via-emerald-700 to-green-600 py-16">
+      <div className="container mx-auto px-4">
+        <div className="bg-white rounded-3xl shadow-2xl overflow-hidden backdrop-blur-sm">
+          {/* Header */}
+          <div className="bg-gradient-to-r from-cyan-600 via-teal-600 to-slate-700 text-white p-12 text-center relative overflow-hidden">
+            <div className="absolute inset-0 opacity-5">
+              <div 
+                className="absolute inset-0" 
+                style={{
+                  backgroundImage: `url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M30 30c0-11.046 8.954-20 20-20s20 8.954 20 20-8.954 20-20 20-20-8.954-20-20zm0 0c0 11.046-8.954 20-20 20s-20-8.954-20-20 8.954-20 20-20 20 8.954 20 20z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")`,
+                  animation: 'windFlow 15s linear infinite'
+                }}
+              ></div>
+            </div>
+            <h2 className="text-4xl md:text-5xl font-bold mb-4 bg-gradient-to-r from-white to-cyan-100 bg-clip-text text-transparent">
+              <Wind className="inline-block mr-3 animate-spin" />
+              Windenergie-Einsparungsrechner
+            </h2>
+            <p className="text-xl opacity-95 font-light">
+              Nutzen Sie die Kraft des Windes, um Ihre Energiekosten zu senken
+            </p>
+          </div>
+
+          <div className="grid grid-cols-1 lg:grid-cols-2 gap-0">
+            {/* Calculator Section */}
+            <div className="p-8 lg:p-12 bg-gradient-to-br from-emerald-50 to-green-100 border-r border-green-200">
+              <div className="flex justify-center mb-8">
+                <div className="flex gap-4">
+                  <div className="w-3 h-3 rounded-full bg-emerald-600"></div>
+                  <div className="w-3 h-3 rounded-full bg-gray-300"></div>
+                  <div className="w-3 h-3 rounded-full bg-gray-300"></div>
+                </div>
+              </div>
+
+              <h3 className="text-2xl font-bold text-gray-800 mb-8 relative">
+                <Wind className="inline mr-2 text-emerald-600 animate-spin" />
+                Berechnen Sie Ihre Windenergie-Einsparungen
+                <div className="absolute bottom-0 left-0 w-16 h-1 bg-gradient-to-r from-cyan-500 to-teal-600 rounded"></div>
+              </h3>
+
+              <Card className="bg-white/70 border-green-200 backdrop-blur-sm mb-6">
+                <CardContent className="p-6">
+                  <div className="grid gap-6">
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Durchschnittliche monatliche Stromrechnung
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <div className="relative">
+                        <span className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-600 font-semibold">€</span>
+                        <Input
+                          type="number"
+                          value={monthlyBill}
+                          onChange={(e) => setMonthlyBill(e.target.value)}
+                          placeholder="150"
+                          className="pl-8 h-12 border-2 border-green-200 focus:border-emerald-500"
+                        />
+                      </div>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Grundstücksgröße (Hektar)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Input
+                        type="number"
+                        value={propertySize}
+                        onChange={(e) => setPropertySize(e.target.value)}
+                        placeholder="0.8"
+                        step="0.1"
+                        min="0"
+                        className="h-12 border-2 border-green-200 focus:border-emerald-500"
+                      />
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Grundstücksart
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Select value={zoning} onValueChange={setZoning}>
+                        <SelectTrigger className="h-12 border-2 border-green-200">
+                          <SelectValue />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="rural">Ländlich</SelectItem>
+                          <SelectItem value="suburban">Vorstädtisch</SelectItem>
+                          <SelectItem value="urban">Städtisch</SelectItem>
+                          <SelectItem value="agricultural">Landwirtschaftlich</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+                </CardContent>
+              </Card>
+
+              <Card className="bg-white/70 border-green-200 backdrop-blur-sm mb-8">
+                <CardContent className="p-6">
+                  <div className="grid gap-6">
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Durchschnittliche Windgeschwindigkeit (km/h)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Select value={windSpeed} onValueChange={setWindSpeed}>
+                        <SelectTrigger className="h-12 border-2 border-green-200">
+                          <SelectValue />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="8">13 km/h (Schwache Windzone)</SelectItem>
+                          <SelectItem value="10">16 km/h (Mäßiger Wind)</SelectItem>
+                          <SelectItem value="12">19 km/h (Gute Windressource)</SelectItem>
+                          <SelectItem value="15">24 km/h (Ausgezeichneter Wind)</SelectItem>
+                          <SelectItem value="18">29+ km/h (Hervorragender Wind)</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Max. erlaubte Anlagenhöhe (m)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Select value={turbineHeight} onValueChange={setTurbineHeight}>
+                        <SelectTrigger className="h-12 border-2 border-green-200">
+                          <SelectValue />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="40">12 m (Eingeschränkte Gebiete)</SelectItem>
+                          <SelectItem value="60">18 m (Vorstädtisches Limit)</SelectItem>
+                          <SelectItem value="80">24 m (Standard Wohngebiet)</SelectItem>
+                          <SelectItem value="100">30 m (Ländliche Gebiete)</SelectItem>
+                          <SelectItem value="120">36+ m (Keine Beschränkungen)</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Strompreis (pro kWh)
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <div className="relative">
+                        <span className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-600 font-semibold">€</span>
+                        <Input
+                          type="number"
+                          value={electricityRate}
+                          onChange={(e) => setElectricityRate(e.target.value)}
+                          step="0.01"
+                          placeholder="0.35"
+                          className="pl-8 h-12 border-2 border-green-200 focus:border-emerald-500"
+                        />
+                      </div>
+                    </div>
+
+                    <div>
+                      <label className="block text-sm font-semibold text-gray-700 mb-2">
+                        Postleitzahl
+                        <HelpCircle className="inline w-4 h-4 ml-1 text-gray-400" />
+                      </label>
+                      <Input
+                        type="text"
+                        value={zipCode}
+                        onChange={(e) => setZipCode(e.target.value)}
+                        placeholder="12345"
+                        pattern="[0-9]{5}"
+                        className="h-12 border-2 border-green-200 focus:border-emerald-500"
+                      />
+                    </div>
+                  </div>
+                </CardContent>
+              </Card>
+
+              <Button
+                onClick={calculateWindSavings}
+                className="w-full h-14 text-lg font-bold bg-gradient-to-r from-emerald-600 to-teal-700 hover:from-emerald-700 hover:to-teal-800 transform hover:-translate-y-1 transition-all duration-300 shadow-lg hover:shadow-xl"
+              >
+                <Wind className="w-5 h-5 mr-2" />
+                Meine Windenergie-Einsparungen berechnen
+              </Button>
+            </div>
+
+            {/* Results Section */}
+            <div className="p-8 lg:p-12 bg-gradient-to-br from-white to-gray-50">
+              <h3 className="text-2xl font-bold text-gray-800 mb-8 relative">
+                <Zap className="inline mr-2 text-emerald-600" />
+                Ihre Windenergie-Einsparungen
+                <div className="absolute bottom-0 left-0 w-16 h-1 bg-gradient-to-r from-emerald-500 to-green-600 rounded"></div>
+              </h3>
+
+              {showResults && results ? (
+                <div className="space-y-6 animate-in fade-in duration-500">
+                  <Card className="bg-gradient-to-r from-emerald-600 to-teal-700 text-white relative overflow-hidden">
+                    <div className="absolute inset-0 bg-gradient-to-r from-white/10 to-transparent"></div>
+                    <CardContent className="p-6 text-center relative z-10">
+                      <div className="text-3xl font-bold mb-1">€{results.monthlySavings}</div>
+                      <div className="opacity-90">Monatliche Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-r from-teal-600 to-cyan-700 text-white relative overflow-hidden">
+                    <div className="absolute inset-0 bg-gradient-to-r from-white/10 to-transparent"></div>
+                    <CardContent className="p-6 text-center relative z-10">
+                      <div className="text-3xl font-bold mb-1">€{results.yearlySavings.toLocaleString()}</div>
+                      <div className="opacity-90">Jährliche Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-r from-cyan-600 to-blue-700 text-white relative overflow-hidden">
+                    <div className="absolute inset-0 bg-gradient-to-r from-white/10 to-transparent"></div>
+                    <CardContent className="p-6 text-center relative z-10">
+                      <div className="text-3xl font-bold mb-1">€{results.lifetimeSavings.toLocaleString()}</div>
+                      <div className="opacity-90">20-Jahre Einsparungen</div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-br from-emerald-50 to-green-100 border-green-200">
+                    <CardHeader>
+                      <CardTitle className="text-center text-gray-800">Windenergie-System Aufschlüsselung</CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                      <div className="space-y-3 text-sm">
+                        <div className="flex justify-between py-2 border-b border-green-200">
+                          <span>Anlagengröße:</span>
+                          <span className="font-semibold">{results.turbineSize} kW</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-green-200">
+                          <span>Installationskosten:</span>
+                          <span className="font-semibold">€{results.installCost.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-green-200">
+                          <span>Förderung/Zuschüsse (25%):</span>
+                          <span className="font-semibold text-green-600">-€{results.taxCredit.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 border-b border-green-200">
+                          <span>Nettokosten nach Förderung:</span>
+                          <span className="font-semibold">€{results.netCost.toLocaleString()}</span>
+                        </div>
+                        <div className="flex justify-between py-2 font-bold text-emerald-600">
+                          <span>Amortisationsdauer:</span>
+                          <span>{results.paybackPeriod} Jahre</span>
+                        </div>
+                      </div>
+                    </CardContent>
+                  </Card>
+
+                  <Card className="bg-gradient-to-br from-emerald-50 to-green-100 border-green-200">
+                    <CardContent className="p-6">
+                      <h4 className="font-semibold text-center mb-4 text-gray-800">
+                        Windenergie-Einsparungen über die Zeit
+                      </h4>
+                      {createSavingsChart()}
+                    </CardContent>
+                  </Card>
+                </div>
+              ) : (
+                <div className="text-center text-gray-500 py-12">
+                  <Wind className="w-16 h-16 mx-auto mb-4 text-emerald-400 animate-spin" />
+                  <div className="text-lg mb-2">Bereit zur Berechnung</div>
+                  <div className="text-sm">Füllen Sie das Formular aus und klicken Sie auf "Berechnen"</div>
+                </div>
+              )}
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default WindCalculator;

src/components/ui/button.tsx

@@ -21,12 +21,8 @@ const buttonVariants = cva(
         // Energy-specific variants
         solar: "bg-gradient-solar text-white hover:shadow-solar transform hover:scale-105",
         wind: "bg-gradient-wind text-white hover:shadow-wind transform hover:scale-105",
-        geo: "bg-gradient-geo text-white hover:shadow-geo transform hover:scale-105",
-        battery: "bg-gradient-battery text-white hover:shadow-battery transform hover:scale-105",
         "solar-outline": "border-2 border-solar bg-transparent text-solar hover:bg-solar hover:text-white",
         "wind-outline": "border-2 border-wind bg-transparent text-wind hover:bg-wind hover:text-white",
-        "geo-outline": "border-2 border-geo bg-transparent text-geo hover:bg-geo hover:text-white",
-        "battery-outline": "border-2 border-battery bg-transparent text-battery hover:bg-battery hover:text-white",
         hero: "bg-gradient-hero text-white hover:shadow-lg transform hover:scale-105 border border-white/20",
       },
       size: {

src/index.css

@@ -26,18 +26,6 @@
     --wind-light: 207 100% 85%;
     --wind-dark: 207 80% 41%;
     
-    /* Energy Type Colors - Geothermal Green */
-    --geo-primary: 122 39% 49%;
-    --geo-secondary: 122 40% 56%;
-    --geo-light: 122 45% 80%;
-    --geo-dark: 122 35% 36%;
-    
-    /* Energy Type Colors - Battery Purple */
-    --battery-primary: 291 64% 42%;
-    --battery-secondary: 291 64% 49%;
-    --battery-light: 291 70% 80%;
-    --battery-dark: 291 60% 29%;
-    
     /* Brand Colors */
     --primary: 218 47% 18%;
     --primary-foreground: 210 40% 98%;
@@ -58,8 +46,6 @@
     /* Energy Gradients */
     --gradient-solar: linear-gradient(135deg, hsl(var(--solar-primary)) 0%, hsl(var(--solar-secondary)) 100%);
     --gradient-wind: linear-gradient(135deg, hsl(var(--wind-primary)) 0%, hsl(var(--wind-secondary)) 100%);
-    --gradient-geo: linear-gradient(135deg, hsl(var(--geo-primary)) 0%, hsl(var(--geo-secondary)) 100%);
-    --gradient-battery: linear-gradient(135deg, hsl(var(--battery-primary)) 0%, hsl(var(--battery-secondary)) 100%);
     --gradient-hero: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(218 47% 25%) 100%);
     
     /* Shadows */
@@ -68,8 +54,6 @@
     --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
     --shadow-solar: 0 8px 32px hsl(var(--solar-primary) / 0.25);
     --shadow-wind: 0 8px 32px hsl(var(--wind-primary) / 0.25);
-    --shadow-geo: 0 8px 32px hsl(var(--geo-primary) / 0.25);
-    --shadow-battery: 0 8px 32px hsl(var(--battery-primary) / 0.25);
     
     /* Animations */
     --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
@@ -189,17 +173,28 @@
     background-clip: text;
   }
 
-  .gradient-text-geo {
+  /* Solar Calculator Animations */
-    background: var(--gradient-geo);
+  @keyframes float {
-    -webkit-background-clip: text;
+    0% { transform: translate(0, 0); }
-    -webkit-text-fill-color: transparent;
+    100% { transform: translate(-60px, -60px); }
-    background-clip: text;
   }
 
-  .gradient-text-battery {
+  @keyframes growUp {
-    background: var(--gradient-battery);
+    from { height: 0; }
-    -webkit-background-clip: text;
+  }
-    -webkit-text-fill-color: transparent;
+
-    background-clip: text;
+  @keyframes fade-in {
+    from { opacity: 0; transform: translateY(20px); }
+    to { opacity: 1; transform: translateY(0); }
+  }
+
+  .animate-in {
+    animation: fade-in 0.5s ease-out;
+  }
+
+  /* Wind Calculator Animations */
+  @keyframes windFlow {
+    0% { transform: translate(0, 0) rotate(0deg); }
+    100% { transform: translate(-60px, -60px) rotate(360deg); }
   }
 }

src/integrations/supabase/types.ts

@@ -398,7 +398,7 @@ export type Database = {
       }
     }
     Enums: {
-      energy_type: "solar" | "wind" | "geothermal" | "battery"
+      energy_type: "solar" | "wind"
       installer_status: "active" | "inactive" | "pending" | "suspended"
       quote_status: "pending" | "accepted" | "rejected" | "expired"
     }
@@ -528,7 +528,7 @@ export type CompositeTypes<
 export const Constants = {
   public: {
     Enums: {
-      energy_type: ["solar", "wind", "geothermal", "battery"],
+      energy_type: ["solar", "wind"],
       installer_status: ["active", "inactive", "pending", "suspended"],
       quote_status: ["pending", "accepted", "rejected", "expired"],
     },

src/lib/cleanDatabase.ts

@@ -0,0 +1,180 @@
+import { supabase } from "@/integrations/supabase/client";
+
+export const cleanAndReseedDatabase = async () => {
+  console.log('Cleaning existing installer data...');
+  
+  try {
+    // First, delete all existing installers
+    const { error: deleteError } = await supabase
+      .from('installers')
+      .delete()
+      .not('id', 'is', null); // Delete all records
+
+    if (deleteError) {
+      console.error('Error deleting existing data:', deleteError);
+      throw deleteError;
+    }
+
+    console.log('Existing data cleaned successfully!');
+    
+    // Now insert our proper German installer data
+    const germanInstallers = [
+      {
+        name: "SolarTech Pro München",
+        company_name: "SolarTech Pro GmbH",
+        email: "info@solartech-pro.de",
+        phone: "+49 89 123 4567",
+        website: "www.solartech-pro.de",
+        address: "Maximilianstrasse 15, 80539 München",
+        location: "München, Bayern",
+        energy_type: "solar",
+        description: "Spezialisiert auf hochwertige Photovoltaik-Anlagen für Privathaushalte und Gewerbe. Mit über 15 Jahren Erfahrung sind wir Ihr vertrauensvoller Partner für nachhaltige Energielösungen.",
+        specialties: ["Photovoltaik", "Solarthermie", "Energiespeicher", "Smart Home Integration"],
+        certifications: ["IHK Zertifiziert", "VDE Prüfung", "TÜV Süd"],
+        experience_years: 15,
+        rating: 4.8,
+        review_count: 127,
+        verified: true,
+        status: "active",
+        service_areas: ["München", "Augsburg", "Ingolstadt", "Landshut"],
+        languages: ["Deutsch", "Englisch"],
+        latitude: 48.1351,
+        longitude: 11.5820
+      },
+      {
+        name: "WindEnergie Solutions Hamburg",
+        company_name: "WindEnergie Solutions GmbH",
+        email: "kontakt@windenergie-solutions.de",
+        phone: "+49 40 987 6543",
+        website: "www.windenergie-solutions.de",
+        address: "Hafenstraße 42, 20359 Hamburg",
+        location: "Hamburg, Hamburg",
+        energy_type: "wind",
+        description: "Experten für Windkraftanlagen und erneuerbare Energielösungen. Wir planen und installieren Windenergieanlagen für private und gewerbliche Kunden.",
+        specialties: ["Windkraft", "Kleinwindanlagen", "Planung", "Wartung"],
+        certifications: ["BWE Mitglied", "VDMA Zertifikat", "ISO 9001"],
+        experience_years: 12,
+        rating: 4.6,
+        review_count: 89,
+        verified: true,
+        status: "active",
+        service_areas: ["Hamburg", "Bremen", "Schleswig-Holstein", "Niedersachsen"],
+        languages: ["Deutsch", "Englisch", "Dänisch"],
+        latitude: 53.5511,
+        longitude: 9.9937
+      },
+      {
+        name: "Grüne Energie Partner Berlin",
+        company_name: "Grüne Energie Partner GmbH",
+        email: "info@gruene-energie-partner.de",
+        phone: "+49 30 555 1234",
+        website: "www.gruene-energie-partner.de",
+        address: "Unter den Linden 77, 10117 Berlin",
+        location: "Berlin, Berlin",
+        energy_type: "solar",
+        description: "Vollständige Lösungen für erneuerbare Energien mit Fokus auf Nachhaltigkeit. Wir bieten sowohl Solar- als auch Windenergie-Lösungen aus einer Hand.",
+        specialties: ["Solar", "Wind", "Energieberatung", "Förderung", "Hybrid-Systeme"],
+        certifications: ["DGS Zertifikat", "Handwerkskammer Berlin", "KfW Effizienzexperte"],
+        experience_years: 18,
+        rating: 4.9,
+        review_count: 203,
+        verified: true,
+        status: "active",
+        service_areas: ["Berlin", "Brandenburg", "Potsdam"],
+        languages: ["Deutsch", "Englisch", "Polnisch"],
+        latitude: 52.5200,
+        longitude: 13.4050
+      },
+      {
+        name: "EcoSolar Systems Stuttgart",
+        company_name: "EcoSolar Systems GmbH",
+        email: "service@ecosolar-systems.de",
+        phone: "+49 711 789 0123",
+        website: "www.ecosolar-systems.de",
+        address: "Königstraße 28, 70173 Stuttgart",
+        location: "Stuttgart, Baden-Württemberg",
+        energy_type: "solar",
+        description: "Innovative Solaranlagen mit modernster Technologie für maximale Effizienz. Spezialisiert auf High-End Photovoltaik-Systeme mit intelligenter Steuerung.",
+        specialties: ["Hochleistungs-Solar", "Smart Home Integration", "Wartung", "Monitoring"],
+        certifications: ["Solarfachbetrieb", "E-Handwerk Innungsbetrieb", "BSW Solar"],
+        experience_years: 14,
+        rating: 4.7,
+        review_count: 156,
+        verified: true,
+        status: "active",
+        service_areas: ["Stuttgart", "Karlsruhe", "Heilbronn", "Tübingen"],
+        languages: ["Deutsch", "Englisch"],
+        latitude: 48.7758,
+        longitude: 9.1829
+      },
+      {
+        name: "NordWind Energie Bremen",
+        company_name: "NordWind Energie GmbH",
+        email: "info@nordwind-energie.de",
+        phone: "+49 421 456 7890",
+        website: "www.nordwind-energie.de",
+        address: "Weserstraße 50, 28199 Bremen",
+        location: "Bremen, Bremen",
+        energy_type: "wind",
+        description: "Spezialisten für Windenergie-Projekte in Norddeutschland. Von der Planung bis zur Wartung - wir begleiten Ihr Windenergie-Projekt vom ersten Tag an.",
+        specialties: ["Windparks", "Offshore", "Wartung", "Repowering"],
+        certifications: ["BWE Vollmitglied", "GWO Zertifikat", "VDMA Wind Power"],
+        experience_years: 16,
+        rating: 4.5,
+        review_count: 67,
+        verified: true,
+        status: "active",
+        service_areas: ["Bremen", "Bremerhaven", "Oldenburg", "Cuxhaven"],
+        languages: ["Deutsch", "Englisch", "Niederländisch"],
+        latitude: 53.0793,
+        longitude: 8.8017
+      },
+      {
+        name: "Bayerische Solar Solutions",
+        company_name: "Bayerische Solar Solutions GmbH",
+        email: "kontakt@bayerische-solar.de",
+        phone: "+49 89 321 6547",
+        website: "www.bayerische-solar.de",
+        address: "Marienplatz 8, 80331 München",
+        location: "München, Bayern",
+        energy_type: "solar",
+        description: "Traditioneller Handwerksbetrieb mit moderner Solartechnik. Seit 20 Jahren verlässlicher Partner für Photovoltaik-Anlagen in ganz Bayern.",
+        specialties: ["Dachintegration", "Fassadenmontage", "Carports", "Gewerbeanlagen"],
+        certifications: ["Handwerkskammer München", "BSW Solar", "TÜV Bayern"],
+        experience_years: 20,
+        rating: 4.6,
+        review_count: 189,
+        verified: true,
+        status: "active",
+        service_areas: ["München", "Rosenheim", "Freising", "Garmisch-Partenkirchen"],
+        languages: ["Deutsch", "Bayerisch"],
+        latitude: 48.1372,
+        longitude: 11.5755
+      }
+    ];
+
+    // Insert the proper German installer data
+    const { data, error: insertError } = await supabase
+      .from('installers')
+      .insert(germanInstallers)
+      .select();
+
+    if (insertError) {
+      console.error('Error inserting German installer data:', insertError);
+      console.error('Insert error details:', {
+        message: insertError.message,
+        details: insertError.details,
+        code: insertError.code,
+        hint: insertError.hint
+      });
+      throw insertError;
+    }
+
+    console.log('German installer data inserted successfully:', data?.length, 'installers added');
+    return data;
+    
+  } catch (error) {
+    console.error('Error in cleanAndReseedDatabase:', error);
+    throw error;
+  }
+};

src/lib/database.ts

@@ -0,0 +1,208 @@
+import React from "react";
+import { supabase } from "@/integrations/supabase/client";
+import type { Database } from "@/integrations/supabase/types";
+
+type Installer = Database['public']['Tables']['installers']['Row'];
+type InstallerInsert = Database['public']['Tables']['installers']['Insert'];
+type Quote = Database['public']['Tables']['quotes']['Row'];
+type QuoteInsert = Database['public']['Tables']['quotes']['Insert'];
+type ContactClick = Database['public']['Tables']['contact_clicks']['Insert'];
+type AnalyticsEvent = Database['public']['Tables']['analytics_events']['Insert'];
+
+// Installer Services
+export const installerService = {
+  // Get all installers with optional filters
+  async getInstallers(filters?: {
+    energyType?: string;
+    location?: string;
+    searchTerm?: string;
+  }) {
+    let query = supabase
+      .from('installers')
+      .select('*')
+      .eq('status', 'active')
+      .order('rating', { ascending: false });
+
+    if (filters?.energyType && filters.energyType !== 'all') {
+      query = query.contains('energy_type', [filters.energyType]);
+    }
+
+    if (filters?.location) {
+      query = query.ilike('location', `%${filters.location}%`);
+    }
+
+    if (filters?.searchTerm) {
+      query = query.or(`name.ilike.%${filters.searchTerm}%,description.ilike.%${filters.searchTerm}%,specialties.cs.{${filters.searchTerm}}`);
+    }
+
+    const { data, error } = await query;
+    
+    if (error) {
+      console.error('Error fetching installers:', error);
+      console.error('Error details:', {
+        message: error.message,
+        details: error.details,
+        code: error.code,
+        hint: error.hint
+      });
+      throw error;
+    }
+
+    return data;
+  },
+
+  // Get installer by ID
+  async getInstaller(id: string) {
+    const { data, error } = await supabase
+      .from('installers')
+      .select('*')
+      .eq('id', id)
+      .single();
+
+    if (error) {
+      console.error('Error fetching installer:', error);
+      throw error;
+    }
+
+    return data;
+  },
+
+  // Add new installer
+  async createInstaller(installer: InstallerInsert) {
+    const { data, error } = await supabase
+      .from('installers')
+      .insert(installer)
+      .select()
+      .single();
+
+    if (error) {
+      console.error('Error creating installer:', error);
+      throw error;
+    }
+
+    return data;
+  }
+};
+
+// Quote Services
+export const quoteService = {
+  // Submit new quote request
+  async submitQuote(quote: QuoteInsert) {
+    const { data, error } = await supabase
+      .from('quotes')
+      .insert(quote)
+      .select()
+      .single();
+
+    if (error) {
+      console.error('Error submitting quote:', error);
+      throw error;
+    }
+
+    return data;
+  },
+
+  // Get quotes for an installer
+  async getInstallerQuotes(installerId: string) {
+    const { data, error } = await supabase
+      .from('quotes')
+      .select('*')
+      .eq('assigned_installer_id', installerId)
+      .order('created_at', { ascending: false });
+
+    if (error) {
+      console.error('Error fetching installer quotes:', error);
+      throw error;
+    }
+
+    return data;
+  }
+};
+
+// Analytics Services
+export const analyticsService = {
+  // Track contact click
+  async trackContactClick(contactClick: ContactClick) {
+    const { data, error } = await supabase
+      .from('contact_clicks')
+      .insert(contactClick);
+
+    if (error) {
+      console.error('Error tracking contact click:', error);
+      // Don't throw error for analytics - just log it
+    }
+
+    return data;
+  },
+
+  // Track general analytics event
+  async trackEvent(event: AnalyticsEvent) {
+    const { data, error } = await supabase
+      .from('analytics_events')
+      .insert(event);
+
+    if (error) {
+      console.error('Error tracking analytics event:', error);
+      // Don't throw error for analytics - just log it
+    }
+
+    return data;
+  }
+};
+
+// Utility functions
+export const dbUtils = {
+  // Get user's IP address (simplified)
+  async getUserIP(): Promise<string> {
+    try {
+      const response = await fetch('https://api.ipify.org?format=json');
+      const data = await response.json();
+      return data.ip;
+    } catch {
+      return 'unknown';
+    }
+  },
+
+  // Get user agent
+  getUserAgent(): string {
+    return navigator.userAgent;
+  },
+
+  // Generate session ID
+  generateSessionId(): string {
+    return 'session_' + Math.random().toString(36).substr(2, 9) + '_' + Date.now();
+  }
+};
+
+// Hook for getting installers with loading state
+export const useInstallers = () => {
+  const [installers, setInstallers] = React.useState<Installer[]>([]);
+  const [loading, setLoading] = React.useState(true);
+  const [error, setError] = React.useState<string | null>(null);
+
+  const fetchInstallers = async (filters?: {
+    energyType?: string;
+    location?: string;
+    searchTerm?: string;
+  }) => {
+    try {
+      setLoading(true);
+      setError(null);
+      const data = await installerService.getInstallers(filters);
+      setInstallers(data || []);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'An error occurred');
+      setInstallers([]);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return {
+    installers,
+    loading,
+    error,
+    fetchInstallers,
+    refetch: fetchInstallers
+  };
+};

src/lib/debugDatabase.ts

@@ -0,0 +1,102 @@
+import { supabase } from "@/integrations/supabase/client";
+
+export const testConnection = async () => {
+  console.log('=== TESTING SUPABASE CONNECTION ===');
+  
+  try {
+    // Test basic connection
+    const { data, error } = await supabase
+      .from('installers')
+      .select('count', { count: 'exact', head: true });
+
+    if (error) {
+      console.error('Connection test failed:', error);
+      console.error('Error details:', {
+        message: error.message,
+        details: error.details,
+        code: error.code,
+        hint: error.hint
+      });
+      return false;
+    }
+
+    console.log('✅ Connection successful! Table has', data?.length || 0, 'records');
+    return true;
+  } catch (error) {
+    console.error('Connection test exception:', error);
+    return false;
+  }
+};
+
+export const debugDatabase = async () => {
+  console.log('=== DATABASE DEBUG ===');
+  
+  try {
+    // Get all installers
+    const { data, error } = await supabase
+      .from('installers')
+      .select('*')
+      .order('created_at', { ascending: false });
+
+    if (error) {
+      console.error('Error fetching installers:', error);
+      return;
+    }
+
+    console.log(`Found ${data?.length || 0} installers in database:`);
+    
+    data?.forEach((installer, index) => {
+      console.log(`\n${index + 1}. ${installer.name}`);
+      console.log(`   Company: ${installer.company_name}`);
+      console.log(`   Location: ${installer.location}`);
+      console.log(`   Energy Type: ${installer.energy_type}`);
+      console.log(`   Created: ${installer.created_at}`);
+      console.log(`   ID: ${installer.id}`);
+    });
+
+    return data;
+  } catch (error) {
+    console.error('Debug error:', error);
+  }
+};
+
+export const forceDeleteAll = async () => {
+  console.log('=== FORCE DELETE ALL INSTALLERS ===');
+  
+  try {
+    // First, let's see what's there
+    const { data: allData } = await supabase
+      .from('installers')
+      .select('*');
+    
+    console.log('Records before deletion:', allData?.length || 0);
+    allData?.forEach((record, index) => {
+      console.log(`${index + 1}. ${record.name} (ID: ${record.id})`);
+    });
+
+    // Delete ALL records without any conditions
+    const { data, error } = await supabase
+      .from('installers')
+      .delete()
+      .not('id', 'is', null); // This will delete all records
+
+    if (error) {
+      console.error('Error in force delete:', error);
+      throw error;
+    }
+
+    console.log('All installers deleted successfully');
+    
+    // Verify deletion
+    const { data: remainingData } = await supabase
+      .from('installers')
+      .select('*');
+    
+    console.log('Records after deletion:', remainingData?.length || 0);
+    
+    return data;
+  } catch (error) {
+    console.error('Force delete error:', error);
+    throw error;
+  }
+};

src/lib/seedData.ts

@@ -0,0 +1,155 @@
+import { installerService } from "./database";
+import type { Database } from "@/integrations/supabase/types";
+
+type InstallerInsert = Database['public']['Tables']['installers']['Insert'];
+
+const sampleInstallers: InstallerInsert[] = [
+  {
+    name: "SolarTech Pro München",
+    company_name: "SolarTech Pro GmbH",
+    email: "info@solartech-pro.de",
+    phone: "+49 89 123 4567",
+    website: "www.solartech-pro.de",
+    address: "Maximilianstrasse 15, 80539 München",
+    location: "München, Bayern",
+    energy_type: "solar",
+    description: "Spezialisiert auf hochwertige Photovoltaik-Anlagen für Privathaushalte und Gewerbe. Mit über 15 Jahren Erfahrung sind wir Ihr vertrauensvoller Partner für nachhaltige Energielösungen.",
+    specialties: ["Photovoltaik", "Solarthermie", "Energiespeicher", "Smart Home Integration"],
+    certifications: ["IHK Zertifiziert", "VDE Prüfung", "TÜV Süd"],
+    experience_years: 15,
+    rating: 4.8,
+    review_count: 127,
+    verified: true,
+    status: "active",
+    service_areas: ["München", "Augsburg", "Ingolstadt", "Landshut"],
+    languages: ["Deutsch", "Englisch"],
+    latitude: 48.1351,
+    longitude: 11.5820
+  },
+  {
+    name: "WindEnergie Solutions Hamburg",
+    company_name: "WindEnergie Solutions GmbH",
+    email: "kontakt@windenergie-solutions.de",
+    phone: "+49 40 987 6543",
+    website: "www.windenergie-solutions.de",
+    address: "Hafenstraße 42, 20359 Hamburg",
+    location: "Hamburg, Hamburg",
+    energy_type: "wind",
+    description: "Experten für Windkraftanlagen und erneuerbare Energielösungen. Wir planen und installieren Windenergieanlagen für private und gewerbliche Kunden.",
+    specialties: ["Windkraft", "Kleinwindanlagen", "Planung", "Wartung"],
+    certifications: ["BWE Mitglied", "VDMA Zertifikat", "ISO 9001"],
+    experience_years: 12,
+    rating: 4.6,
+    review_count: 89,
+    verified: true,
+    status: "active",
+    service_areas: ["Hamburg", "Bremen", "Schleswig-Holstein", "Niedersachsen"],
+    languages: ["Deutsch", "Englisch", "Dänisch"],
+    latitude: 53.5511,
+    longitude: 9.9937
+  },
+  {
+    name: "Grüne Energie Partner Berlin",
+    company_name: "Grüne Energie Partner GmbH",
+    email: "info@gruene-energie-partner.de",
+    phone: "+49 30 555 1234",
+    website: "www.gruene-energie-partner.de",
+    address: "Unter den Linden 77, 10117 Berlin",
+    location: "Berlin, Berlin",
+    energy_type: "solar",
+    description: "Vollständige Lösungen für erneuerbare Energien mit Fokus auf Nachhaltigkeit. Wir bieten sowohl Solar- als auch Windenergie-Lösungen aus einer Hand.",
+    specialties: ["Solar", "Wind", "Energieberatung", "Förderung", "Hybrid-Systeme"],
+    certifications: ["DGS Zertifikat", "Handwerkskammer Berlin", "KfW Effizienzexperte"],
+    experience_years: 18,
+    rating: 4.9,
+    review_count: 203,
+    verified: true,
+    status: "active",
+    service_areas: ["Berlin", "Brandenburg", "Potsdam"],
+    languages: ["Deutsch", "Englisch", "Polnisch"],
+    latitude: 52.5200,
+    longitude: 13.4050
+  },
+  {
+    name: "EcoSolar Systems Stuttgart",
+    company_name: "EcoSolar Systems GmbH",
+    email: "service@ecosolar-systems.de",
+    phone: "+49 711 789 0123",
+    website: "www.ecosolar-systems.de",
+    address: "Königstraße 28, 70173 Stuttgart",
+    location: "Stuttgart, Baden-Württemberg",
+    energy_type: "solar",
+    description: "Innovative Solaranlagen mit modernster Technologie für maximale Effizienz. Spezialisiert auf High-End Photovoltaik-Systeme mit intelligenter Steuerung.",
+    specialties: ["Hochleistungs-Solar", "Smart Home Integration", "Wartung", "Monitoring"],
+    certifications: ["Solarfachbetrieb", "E-Handwerk Innungsbetrieb", "BSW Solar"],
+    experience_years: 14,
+    rating: 4.7,
+    review_count: 156,
+    verified: true,
+    status: "active",
+    service_areas: ["Stuttgart", "Karlsruhe", "Heilbronn", "Tübingen"],
+    languages: ["Deutsch", "Englisch"],
+    latitude: 48.7758,
+    longitude: 9.1829
+  },
+  {
+    name: "NordWind Energie Bremen",
+    company_name: "NordWind Energie GmbH",
+    email: "info@nordwind-energie.de",
+    phone: "+49 421 456 7890",
+    website: "www.nordwind-energie.de",
+    address: "Weserstraße 50, 28199 Bremen",
+    location: "Bremen, Bremen",
+    energy_type: "wind",
+    description: "Spezialisten für Windenergie-Projekte in Norddeutschland. Von der Planung bis zur Wartung - wir begleiten Ihr Windenergie-Projekt vom ersten Tag an.",
+    specialties: ["Windparks", "Offshore", "Wartung", "Repowering"],
+    certifications: ["BWE Vollmitglied", "GWO Zertifikat", "VDMA Wind Power"],
+    experience_years: 16,
+    rating: 4.5,
+    review_count: 67,
+    verified: true,
+    status: "active",
+    service_areas: ["Bremen", "Bremerhaven", "Oldenburg", "Cuxhaven"],
+    languages: ["Deutsch", "Englisch", "Niederländisch"],
+    latitude: 53.0793,
+    longitude: 8.8017
+  },
+  {
+    name: "Bayerische Solar Solutions",
+    company_name: "Bayerische Solar Solutions GmbH",
+    email: "kontakt@bayerische-solar.de",
+    phone: "+49 89 321 6547",
+    website: "www.bayerische-solar.de",
+    address: "Marienplatz 8, 80331 München",
+    location: "München, Bayern",
+    energy_type: "solar",
+    description: "Traditioneller Handwerksbetrieb mit moderner Solartechnik. Seit 20 Jahren verlässlicher Partner für Photovoltaik-Anlagen in ganz Bayern.",
+    specialties: ["Dachintegration", "Fassadenmontage", "Carports", "Gewerbeanlagen"],
+    certifications: ["Handwerkskammer München", "BSW Solar", "TÜV Bayern"],
+    experience_years: 20,
+    rating: 4.6,
+    review_count: 189,
+    verified: true,
+    status: "active",
+    service_areas: ["München", "Rosenheim", "Freising", "Garmisch-Partenkirchen"],
+    languages: ["Deutsch", "Bayerisch"],
+    latitude: 48.1372,
+    longitude: 11.5755
+  }
+];
+
+export const seedDatabase = async () => {
+  console.log('Starting to seed database with sample installer data...');
+  
+  try {
+    for (const installer of sampleInstallers) {
+      await installerService.createInstaller(installer);
+      console.log(`Added installer: ${installer.name}`);
+    }
+    console.log('Database seeding completed successfully!');
+  } catch (error) {
+    console.error('Error seeding database:', error);
+  }
+};
+
+export { sampleInstallers };

src/pages/Index.tsx

@@ -1,6 +1,7 @@
 import Header from "@/components/Header";
 import HeroSection from "@/components/HeroSection";
 import EnergyTypesSection from "@/components/EnergyTypesSection";
+import CalculatorNavigation from "@/components/CalculatorNavigation";
 import WhyChooseUsSection from "@/components/WhyChooseUsSection";
 import Footer from "@/components/Footer";
 
@@ -11,6 +12,7 @@ const Index = () => {
       <main>
         <HeroSection />
         <EnergyTypesSection />
+        <CalculatorNavigation />
         <WhyChooseUsSection />
       </main>
       <Footer />

src/pages/InstallateurFinden.tsx

@@ -0,0 +1,382 @@
+import { useState, useEffect } from "react";
+import { useSearchParams } from "react-router-dom";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Badge } from "@/components/ui/badge";
+import { Search, MapPin, Star, Phone, Mail, Globe, Filter, AlertCircle } from "lucide-react";
+import Header from "@/components/Header";
+import { installerService, analyticsService } from "@/lib/database";
+import { cleanAndReseedDatabase } from "@/lib/cleanDatabase";
+import { debugDatabase, forceDeleteAll, testConnection } from "@/lib/debugDatabase";
+import type { Database } from "@/integrations/supabase/types";
+
+type Installer = Database['public']['Tables']['installers']['Row'];
+
+const InstallateurFinden = () => {
+  const [searchParams, setSearchParams] = useSearchParams();
+  const [installers, setInstallers] = useState<Installer[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  
+  const [searchTerm, setSearchTerm] = useState(searchParams.get("search") || "");
+  const [energyType, setEnergyType] = useState(searchParams.get("type") || "all");
+  const [location, setLocation] = useState(searchParams.get("location") || "");
+
+  // Load installers from database
+  const loadInstallers = async () => {
+    try {
+      setLoading(true);
+      setError(null);
+      
+      const filters = {
+        energyType: energyType && energyType !== "all" ? energyType : undefined,
+        location: location || undefined,
+        searchTerm: searchTerm || undefined
+      };
+
+      const data = await installerService.getInstallers(filters);
+      setInstallers(data || []);
+
+      // Track search event
+      if (searchTerm || energyType !== "all" || location) {
+        analyticsService.trackEvent({
+          event_type: 'installer_search',
+          page_url: window.location.pathname,
+          event_data: filters,
+          user_agent: navigator.userAgent,
+          session_id: sessionStorage.getItem('session_id') || 'anonymous'
+        });
+      }
+    } catch (err) {
+      console.error('Error loading installers:', err);
+      setError('Fehler beim Laden der Installateure. Bitte versuchen Sie es später erneut.');
+      setInstallers([]);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  // Initial load
+  useEffect(() => {
+    loadInstallers();
+  }, []);
+
+  // Reload when filters change
+  useEffect(() => {
+    const timeoutId = setTimeout(() => {
+      loadInstallers();
+    }, 500); // Debounce search
+
+    return () => clearTimeout(timeoutId);
+  }, [searchTerm, energyType, location]);
+
+  // Update URL params when filters change
+  useEffect(() => {
+    const params = new URLSearchParams();
+    if (searchTerm) params.set("search", searchTerm);
+    if (energyType && energyType !== "all") params.set("type", energyType);
+    if (location) params.set("location", location);
+    setSearchParams(params);
+  }, [searchTerm, energyType, location, setSearchParams]);
+
+  const handleReset = () => {
+    setSearchTerm("");
+    setEnergyType("all");
+    setLocation("");
+  };
+
+  // Test connection
+  const handleTestConnection = async () => {
+    await testConnection();
+  };
+
+  // Debug database
+  const handleDebugDatabase = async () => {
+    await debugDatabase();
+  };
+
+  // Force delete all and reseed
+  const handleForceReseed = async () => {
+    try {
+      await forceDeleteAll();
+      await cleanAndReseedDatabase();
+      alert('Database forcefully reseeded!');
+      loadInstallers();
+    } catch (error) {
+      console.error('Error in force reseed:', error);
+      alert('Error in force reseed. Check console.');
+    }
+  };
+
+  // Clean and reseed with proper German data
+  const handleSeedDatabase = async () => {
+    try {
+      await cleanAndReseedDatabase();
+      alert('Deutsche Installateure erfolgreich geladen!');
+      loadInstallers(); // Reload the data
+    } catch (error) {
+      console.error('Error seeding database:', error);
+      alert('Fehler beim Laden der Installateure. Details in der Konsole.');
+    }
+  };
+
+  // Track contact clicks
+  const handleContactClick = async (installerId: string, contactType: string) => {
+    try {
+      await analyticsService.trackContactClick({
+        installer_id: installerId,
+        contact_type: contactType,
+        page_url: window.location.pathname,
+        user_agent: navigator.userAgent,
+        ip_address: await getClientIP()
+      });
+    } catch (error) {
+      console.error('Error tracking contact click:', error);
+    }
+  };
+
+  // Simple IP detection (fallback)
+  const getClientIP = async (): Promise<string> => {
+    try {
+      const response = await fetch('https://api.ipify.org?format=json');
+      const data = await response.json();
+      return data.ip;
+    } catch {
+      return 'unknown';
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="min-h-screen bg-background flex items-center justify-center">
+        <div className="text-center">
+          <div className="animate-spin rounded-full h-32 w-32 border-b-2 border-primary mx-auto"></div>
+          <p className="mt-4 text-muted-foreground">Installateure werden geladen...</p>
+        </div>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="min-h-screen bg-background">
+        <Header />
+        <div className="flex items-center justify-center py-32">
+          <div className="text-center max-w-md mx-auto px-4">
+            <AlertCircle className="w-16 h-16 text-destructive mx-auto mb-4" />
+            <h2 className="text-2xl font-bold text-foreground mb-2">Fehler beim Laden</h2>
+            <p className="text-muted-foreground mb-6">{error}</p>
+            <Button onClick={() => loadInstallers()} className="mb-4">
+              Erneut versuchen
+            </Button>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-background">
+      {/* Header Navigation */}
+      <Header />
+      
+      {/* Page Header */}
+      <div className="bg-gradient-to-r from-primary to-primary/80 text-white py-16 mt-16">
+        <div className="container mx-auto px-4">
+          <h1 className="text-4xl md:text-5xl font-bold mb-4">
+            Installateure Finden
+          </h1>
+          <p className="text-xl text-white/90 max-w-3xl">
+            Entdecken Sie qualifizierte Fachbetriebe für erneuerbare Energien in Ihrer Region
+          </p>
+        </div>
+      </div>
+
+      {/* Search and Filters */}
+      <div className="container mx-auto px-4 py-8">
+        <Card className="mb-8">
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2">
+              <Filter className="w-5 h-5" />
+              Suche & Filter
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="grid grid-cols-1 md:grid-cols-4 gap-4">
+              <div className="relative">
+                <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-muted-foreground w-4 h-4" />
+                <Input
+                  placeholder="Installateur oder Spezialität suchen..."
+                  value={searchTerm}
+                  onChange={(e) => setSearchTerm(e.target.value)}
+                  className="pl-10"
+                />
+              </div>
+              
+              <Select value={energyType} onValueChange={setEnergyType}>
+                <SelectTrigger>
+                  <SelectValue placeholder="Energieart wählen" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="all">Alle Energiearten</SelectItem>
+                  <SelectItem value="solar">Solar</SelectItem>
+                  <SelectItem value="wind">Wind</SelectItem>
+                </SelectContent>
+              </Select>
+              
+              <div className="relative">
+                <MapPin className="absolute left-3 top-1/2 transform -translate-y-1/2 text-muted-foreground w-4 h-4" />
+                <Input
+                  placeholder="PLZ oder Stadt"
+                  value={location}
+                  onChange={(e) => setLocation(e.target.value)}
+                  className="pl-10"
+                />
+              </div>
+              
+              <Button onClick={handleReset} variant="outline" className="w-full">
+                Filter zurücksetzen
+              </Button>
+              
+            </div>
+          </CardContent>
+        </Card>
+
+        {/* Results */}
+        <div className="mb-4">
+          <p className="text-muted-foreground">
+            {installers.length} Installateur{installers.length !== 1 ? 'e' : ''} gefunden
+          </p>
+        </div>
+
+        {/* Installer Cards */}
+        <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+          {installers.map((installer) => (
+            <Card key={installer.id} className="hover:shadow-lg transition-shadow">
+              <CardHeader>
+                <div className="flex justify-between items-start">
+                  <div>
+                    <CardTitle className="text-xl mb-2">{installer.name}</CardTitle>
+                    <div className="flex items-center gap-2 text-muted-foreground mb-2">
+                      <MapPin className="w-4 h-4" />
+                      <span>{installer.location}</span>
+                    </div>
+                    <div className="flex items-center gap-2 mb-2">
+                      <div className="flex items-center gap-1">
+                        <Star className="w-4 h-4 fill-yellow-400 text-yellow-400" />
+                        <span className="font-semibold">{installer.rating}</span>
+                        <span className="text-muted-foreground">({installer.review_count || 0})</span>
+                      </div>
+                      <Badge variant="secondary">{installer.experience_years || 0} Jahre Erfahrung</Badge>
+                      {installer.verified && (
+                        <Badge variant="default" className="bg-green-100 text-green-800">
+                          Verifiziert
+                        </Badge>
+                      )}
+                    </div>
+                  </div>
+                  <div className="flex gap-2">
+                    <Badge 
+                      variant={installer.energy_type === 'solar' ? 'default' : 'secondary'}
+                      className={installer.energy_type === 'solar' ? 'bg-gradient-solar' : 'bg-gradient-wind'}
+                    >
+                      {installer.energy_type === 'solar' ? 'Solar' : 'Wind'}
+                    </Badge>
+                  </div>
+                </div>
+              </CardHeader>
+              
+              <CardContent>
+                <p className="text-muted-foreground mb-4">{installer.description}</p>
+                
+                <div className="mb-4">
+                  <h4 className="font-semibold mb-2">Spezialitäten:</h4>
+                  <div className="flex flex-wrap gap-2">
+                    {installer.specialties?.map((specialty, index) => (
+                      <Badge key={index} variant="outline" className="text-xs">
+                        {specialty}
+                      </Badge>
+                    )) || (
+                      <span className="text-muted-foreground text-sm">Keine Spezialitäten angegeben</span>
+                    )}
+                  </div>
+                </div>
+
+                {installer.certifications && installer.certifications.length > 0 && (
+                  <div className="mb-4">
+                    <h4 className="font-semibold mb-2">Zertifizierungen:</h4>
+                    <div className="flex flex-wrap gap-2">
+                      {installer.certifications.map((cert, index) => (
+                        <Badge key={index} variant="outline" className="text-xs bg-blue-50 text-blue-700">
+                          {cert}
+                        </Badge>
+                      ))}
+                    </div>
+                  </div>
+                )}
+                
+                <div className="flex flex-col sm:flex-row gap-2">
+                  <Button 
+                    variant="outline" 
+                    size="sm" 
+                    className="flex-1"
+                    onClick={() => {
+                      handleContactClick(installer.id, 'phone');
+                      window.location.href = `tel:${installer.phone}`;
+                    }}
+                  >
+                    <Phone className="w-4 h-4 mr-2" />
+                    Anrufen
+                  </Button>
+                  <Button 
+                    variant="outline" 
+                    size="sm" 
+                    className="flex-1"
+                    onClick={() => {
+                      handleContactClick(installer.id, 'email');
+                      window.location.href = `mailto:${installer.email}`;
+                    }}
+                  >
+                    <Mail className="w-4 h-4 mr-2" />
+                    E-Mail
+                  </Button>
+                  {installer.website && (
+                    <Button 
+                      variant="outline" 
+                      size="sm" 
+                      className="flex-1"
+                      onClick={() => {
+                        handleContactClick(installer.id, 'website');
+                        window.open(`https://${installer.website}`, '_blank');
+                      }}
+                    >
+                      <Globe className="w-4 h-4 mr-2" />
+                      Website
+                    </Button>
+                  )}
+                </div>
+              </CardContent>
+            </Card>
+          ))}
+        </div>
+
+        {installers.length === 0 && (
+          <Card className="text-center py-12">
+            <CardContent>
+              <p className="text-muted-foreground text-lg mb-4">
+                Keine Installateure gefunden, die Ihren Kriterien entsprechen.
+              </p>
+              <Button onClick={handleReset} variant="outline">
+                Alle Filter zurücksetzen
+              </Button>
+            </CardContent>
+          </Card>
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default InstallateurFinden;

src/pages/KostenloseBeratung.tsx

@@ -0,0 +1,364 @@
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Phone, Mail, MapPin, Calendar, Clock, CheckCircle } from "lucide-react";
+import Header from "@/components/Header";
+
+const KostenloseBeratung = () => {
+  const [formData, setFormData] = useState({
+    firstName: "",
+    lastName: "",
+    email: "",
+    phone: "",
+    zipCode: "",
+    city: "",
+    energyType: "",
+    projectType: "",
+    description: "",
+    budget: "",
+    timeline: "",
+    contactPreference: "email",
+    newsletter: false,
+    privacyPolicy: false
+  });
+
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const [isSubmitted, setIsSubmitted] = useState(false);
+
+  const handleInputChange = (field: string, value: string | boolean) => {
+    setFormData(prev => ({
+      ...prev,
+      [field]: value
+    }));
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setIsSubmitting(true);
+    
+    // Simulate API call
+    await new Promise(resolve => setTimeout(resolve, 2000));
+    
+    setIsSubmitting(false);
+    setIsSubmitted(true);
+  };
+
+  if (isSubmitted) {
+    return (
+      <div className="min-h-screen bg-background flex items-center justify-center">
+        <Card className="max-w-md text-center">
+          <CardContent className="pt-6">
+            <CheckCircle className="w-16 h-16 text-green-500 mx-auto mb-4" />
+            <h2 className="text-2xl font-bold mb-2">Beratungsanfrage gesendet!</h2>
+            <p className="text-muted-foreground mb-4">
+              Vielen Dank für Ihr Interesse. Wir werden uns innerhalb von 24 Stunden bei Ihnen melden.
+            </p>
+            <Button onClick={() => window.location.href = "/"} className="w-full">
+              Zurück zur Startseite
+            </Button>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-background">
+      {/* Header Navigation */}
+      <Header />
+      
+      {/* Page Header */}
+      <div className="bg-gradient-to-r from-primary to-primary/80 text-white py-16 mt-16">
+        <div className="container mx-auto px-4">
+          <h1 className="text-4xl md:text-5xl font-bold mb-4">
+            Kostenlose Beratung
+          </h1>
+          <p className="text-xl text-white/90 max-w-3xl">
+            Lassen Sie sich von unseren Experten beraten und erhalten Sie ein maßgeschneidertes Angebot
+          </p>
+        </div>
+      </div>
+
+      <div className="container mx-auto px-4 py-8">
+        <div className="grid grid-cols-1 lg:grid-cols-3 gap-8">
+          {/* Form */}
+          <div className="lg:col-span-2">
+            <Card>
+              <CardHeader>
+                <CardTitle>Ihre Beratungsanfrage</CardTitle>
+              </CardHeader>
+              <CardContent>
+                <form onSubmit={handleSubmit} className="space-y-6">
+                  {/* Personal Information */}
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="firstName">Vorname *</Label>
+                      <Input
+                        id="firstName"
+                        value={formData.firstName}
+                        onChange={(e) => handleInputChange("firstName", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="lastName">Nachname *</Label>
+                      <Input
+                        id="lastName"
+                        value={formData.lastName}
+                        onChange={(e) => handleInputChange("lastName", e.target.value)}
+                        required
+                      />
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="email">E-Mail *</Label>
+                      <Input
+                        id="email"
+                        type="email"
+                        value={formData.email}
+                        onChange={(e) => handleInputChange("email", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="phone">Telefon</Label>
+                      <Input
+                        id="phone"
+                        type="tel"
+                        value={formData.phone}
+                        onChange={(e) => handleInputChange("phone", e.target.value)}
+                      />
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="zipCode">PLZ *</Label>
+                      <Input
+                        id="zipCode"
+                        value={formData.zipCode}
+                        onChange={(e) => handleInputChange("zipCode", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="city">Stadt *</Label>
+                      <Input
+                        id="city"
+                        value={formData.city}
+                        onChange={(e) => handleInputChange("city", e.target.value)}
+                        required
+                      />
+                    </div>
+                  </div>
+
+                  {/* Project Information */}
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="energyType">Energieart *</Label>
+                      <Select value={formData.energyType} onValueChange={(value) => handleInputChange("energyType", value)}>
+                        <SelectTrigger>
+                          <SelectValue placeholder="Energieart wählen" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="solar">Solar</SelectItem>
+                          <SelectItem value="wind">Wind</SelectItem>
+                          <SelectItem value="both">Beide</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="projectType">Projekttyp *</Label>
+                      <Select value={formData.projectType} onValueChange={(value) => handleInputChange("projectType", value)}>
+                        <SelectTrigger>
+                          <SelectValue placeholder="Projekttyp wählen" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="private">Privathaushalt</SelectItem>
+                          <SelectItem value="commercial">Gewerbe</SelectItem>
+                          <SelectItem value="industrial">Industrie</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="budget">Budget</Label>
+                      <Select value={formData.budget} onValueChange={(value) => handleInputChange("budget", value)}>
+                        <SelectTrigger>
+                          <SelectValue placeholder="Budget wählen" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="under-10k">Unter 10.000 €</SelectItem>
+                          <SelectItem value="10k-25k">10.000 - 25.000 €</SelectItem>
+                          <SelectItem value="25k-50k">25.000 - 50.000 €</SelectItem>
+                          <SelectItem value="over-50k">Über 50.000 €</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="timeline">Zeitplan</Label>
+                      <Select value={formData.timeline} onValueChange={(value) => handleInputChange("timeline", value)}>
+                        <SelectTrigger>
+                          <SelectValue placeholder="Zeitplan wählen" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="immediate">Sofort</SelectItem>
+                          <SelectItem value="3months">Innerhalb 3 Monate</SelectItem>
+                          <SelectItem value="6months">Innerhalb 6 Monate</SelectItem>
+                          <SelectItem value="1year">Innerhalb 1 Jahr</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </div>
+
+                  <div className="space-y-2">
+                    <Label htmlFor="description">Projektbeschreibung</Label>
+                    <Textarea
+                      id="description"
+                      placeholder="Beschreiben Sie Ihr Projekt, Ihre Anforderungen und Ziele..."
+                      value={formData.description}
+                      onChange={(e) => handleInputChange("description", e.target.value)}
+                      rows={4}
+                    />
+                  </div>
+
+                  <div className="space-y-2">
+                    <Label>Kontaktpräferenz</Label>
+                    <div className="flex gap-4">
+                      <div className="flex items-center space-x-2">
+                        <input
+                          type="radio"
+                          id="email-pref"
+                          name="contactPreference"
+                          value="email"
+                          checked={formData.contactPreference === "email"}
+                          onChange={(e) => handleInputChange("contactPreference", e.target.value)}
+                        />
+                        <Label htmlFor="email-pref">E-Mail</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <input
+                          type="radio"
+                          id="phone-pref"
+                          name="contactPreference"
+                          value="phone"
+                          checked={formData.contactPreference === "phone"}
+                          onChange={(e) => handleInputChange("contactPreference", e.target.value)}
+                        />
+                        <Label htmlFor="phone-pref">Telefon</Label>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div className="space-y-4">
+                    <div className="flex items-center space-x-2">
+                      <Checkbox
+                        id="newsletter"
+                        checked={formData.newsletter}
+                        onCheckedChange={(checked) => handleInputChange("newsletter", checked as boolean)}
+                      />
+                      <Label htmlFor="newsletter">
+                        Ich möchte den Newsletter mit Tipps zu erneuerbaren Energien erhalten
+                      </Label>
+                    </div>
+                    <div className="flex items-center space-x-2">
+                      <Checkbox
+                        id="privacyPolicy"
+                        checked={formData.privacyPolicy}
+                        onCheckedChange={(checked) => handleInputChange("privacyPolicy", checked as boolean)}
+                        required
+                      />
+                      <Label htmlFor="privacyPolicy">
+                        Ich akzeptiere die <a href="/datenschutz" className="text-primary hover:underline">Datenschutzerklärung</a> *
+                      </Label>
+                    </div>
+                  </div>
+
+                  <Button type="submit" className="w-full" disabled={isSubmitting}>
+                    {isSubmitting ? "Wird gesendet..." : "Beratungsanfrage senden"}
+                  </Button>
+                </form>
+              </CardContent>
+            </Card>
+          </div>
+
+          {/* Sidebar */}
+          <div className="space-y-6">
+            {/* Benefits */}
+            <Card>
+              <CardHeader>
+                <CardTitle>Ihre Vorteile</CardTitle>
+              </CardHeader>
+              <CardContent className="space-y-4">
+                <div className="flex items-start gap-3">
+                  <CheckCircle className="w-5 h-5 text-green-500 mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Kostenlose Beratung</h4>
+                    <p className="text-sm text-muted-foreground">Unverbindliche Erstberatung ohne Kosten</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <CheckCircle className="w-5 h-5 text-green-500 mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Expertenwissen</h4>
+                    <p className="text-sm text-muted-foreground">Beratung durch zertifizierte Fachleute</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <CheckCircle className="w-5 h-5 text-green-500 mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Maßgeschneiderte Lösungen</h4>
+                    <p className="text-sm text-muted-foreground">Individuelle Beratung für Ihr Projekt</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <CheckCircle className="w-5 h-5 text-green-500 mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Förderung & Finanzierung</h4>
+                    <p className="text-sm text-muted-foreground">Informationen zu staatlichen Förderungen</p>
+                  </div>
+                </div>
+              </CardContent>
+            </Card>
+
+            {/* Contact Info */}
+            <Card>
+              <CardHeader>
+                <CardTitle>Kontakt</CardTitle>
+              </CardHeader>
+              <CardContent className="space-y-4">
+                <div className="flex items-center gap-3">
+                  <Phone className="w-5 h-5 text-primary" />
+                  <span>+49 (0) 800 123 4567</span>
+                </div>
+                <div className="flex items-center gap-3">
+                  <Mail className="w-5 h-5 text-primary" />
+                  <span>beratung@energieprofis.de</span>
+                </div>
+                <div className="flex items-center gap-3">
+                  <MapPin className="w-5 h-5 text-primary" />
+                  <span>München, Deutschland</span>
+                </div>
+                <div className="flex items-center gap-3">
+                  <Clock className="w-5 h-5 text-primary" />
+                  <span>Mo-Fr: 8:00 - 18:00</span>
+                </div>
+              </CardContent>
+            </Card>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default KostenloseBeratung;

src/pages/Solar.tsx

@@ -1,5 +1,6 @@
 import Header from "@/components/Header";
 import Footer from "@/components/Footer";
+import SolarCalculator from "@/components/SolarCalculator";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Sun, Zap, TrendingUp, Shield, ArrowRight } from "lucide-react";
@@ -62,11 +63,6 @@ const Solar = () => {
                   Solar-Installateur Finden
                 </Link>
               </Button>
-              <Button variant="solar-outline" size="xl" className="border-white/30 text-white hover:bg-white hover:text-solar">
-                <Link to="/kostenlose-beratung?type=solar">
-                  Kostenlose Beratung
-                </Link>
-              </Button>
             </div>
           </div>
         </div>
@@ -106,6 +102,9 @@ const Solar = () => {
         </div>
       </section>
 
+      {/* Solar Calculator Section */}
+      <SolarCalculator />
+
       {/* CTA Section */}
       <section className="py-20 bg-gradient-solar text-white">
         <div className="container mx-auto px-4 text-center">
@@ -118,8 +117,8 @@ const Solar = () => {
           
           <div className="flex flex-col sm:flex-row gap-4 justify-center">
             <Button variant="hero" size="xl" className="bg-white text-solar hover:bg-white/90" asChild>
-              <Link to="/kostenlose-beratung?type=solar">
+              <Link to="/installateur-finden?type=solar">
-                Jetzt kostenlose Beratung anfordern
+                Solar-Installateure finden
                 <ArrowRight className="w-5 h-5 ml-2" />
               </Link>
             </Button>

src/pages/UnternehmenListen.tsx

@@ -0,0 +1,446 @@
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Label } from "@/components/ui/label";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Building2, MapPin, Phone, Mail, Globe, CheckCircle, Users, Award, Clock } from "lucide-react";
+import Header from "@/components/Header";
+
+const UnternehmenListen = () => {
+  const [formData, setFormData] = useState({
+    companyName: "",
+    contactPerson: "",
+    email: "",
+    phone: "",
+    website: "",
+    zipCode: "",
+    city: "",
+    energyTypes: [] as string[],
+    services: [] as string[],
+    description: "",
+    experience: "",
+    certifications: [] as string[],
+    coverageArea: "",
+    contactPreference: "email",
+    newsletter: false,
+    privacyPolicy: false
+  });
+
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const [isSubmitted, setIsSubmitted] = useState(false);
+
+  const handleInputChange = (field: string, value: string | boolean | string[]) => {
+    setFormData(prev => ({
+      ...prev,
+      [field]: value
+    }));
+  };
+
+  const handleEnergyTypeChange = (type: string, checked: boolean) => {
+    if (checked) {
+      setFormData(prev => ({
+        ...prev,
+        energyTypes: [...prev.energyTypes, type]
+      }));
+    } else {
+      setFormData(prev => ({
+        ...prev,
+        energyTypes: prev.energyTypes.filter(t => t !== type)
+      }));
+    }
+  };
+
+  const handleServiceChange = (service: string, checked: boolean) => {
+    if (checked) {
+      setFormData(prev => ({
+        ...prev,
+        services: [...prev.services, service]
+      }));
+    } else {
+      setFormData(prev => ({
+        ...prev,
+        services: prev.services.filter(s => s !== service)
+      }));
+    }
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setIsSubmitting(true);
+    
+    // Simulate API call
+    await new Promise(resolve => setTimeout(resolve, 2000));
+    
+    setIsSubmitting(false);
+    setIsSubmitted(true);
+  };
+
+  if (isSubmitted) {
+    return (
+      <div className="min-h-screen bg-background flex items-center justify-center">
+        <Card className="max-w-md text-center">
+          <CardContent className="pt-6">
+            <CheckCircle className="w-16 h-16 text-green-500 mx-auto mb-4" />
+            <h2 className="text-2xl font-bold mb-2">Anmeldung erfolgreich!</h2>
+            <p className="text-muted-foreground mb-4">
+              Vielen Dank für Ihre Anmeldung. Wir werden Ihr Unternehmen innerhalb von 48 Stunden prüfen und freischalten.
+            </p>
+            <Button onClick={() => window.location.href = "/"} className="w-full">
+              Zurück zur Startseite
+            </Button>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div className="min-h-screen bg-background">
+      {/* Header Navigation */}
+      <Header />
+      
+      {/* Page Header */}
+      <div className="bg-gradient-to-r from-primary to-primary/80 text-white py-16 mt-16">
+        <div className="container mx-auto px-4">
+          <h1 className="text-4xl md:text-5xl font-bold mb-4">
+            Unternehmen Listen
+          </h1>
+          <p className="text-xl text-white/90 max-w-3xl">
+            Werden Sie Teil unseres Netzwerks und erreichen Sie neue Kunden für erneuerbare Energien
+          </p>
+        </div>
+      </div>
+
+      <div className="container mx-auto px-4 py-8">
+        <div className="grid grid-cols-1 lg:grid-cols-3 gap-8">
+          {/* Form */}
+          <div className="lg:col-span-2">
+            <Card>
+              <CardHeader>
+                <CardTitle>Unternehmensanmeldung</CardTitle>
+              </CardHeader>
+              <CardContent>
+                <form onSubmit={handleSubmit} className="space-y-6">
+                  {/* Company Information */}
+                  <div className="space-y-2">
+                    <Label htmlFor="companyName">Firmenname *</Label>
+                    <Input
+                      id="companyName"
+                      value={formData.companyName}
+                      onChange={(e) => handleInputChange("companyName", e.target.value)}
+                      required
+                    />
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="contactPerson">Ansprechpartner *</Label>
+                      <Input
+                        id="contactPerson"
+                        value={formData.contactPerson}
+                        onChange={(e) => handleInputChange("contactPerson", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="email">E-Mail *</Label>
+                      <Input
+                        id="email"
+                        type="email"
+                        value={formData.email}
+                        onChange={(e) => handleInputChange("email", e.target.value)}
+                        required
+                      />
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="phone">Telefon *</Label>
+                      <Input
+                        id="phone"
+                        type="tel"
+                        value={formData.phone}
+                        onChange={(e) => handleInputChange("phone", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="website">Website</Label>
+                      <Input
+                        id="website"
+                        type="url"
+                        value={formData.website}
+                        onChange={(e) => handleInputChange("website", e.target.value)}
+                        placeholder="https://www.example.de"
+                      />
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="zipCode">PLZ *</Label>
+                      <Input
+                        id="zipCode"
+                        value={formData.zipCode}
+                        onChange={(e) => handleInputChange("zipCode", e.target.value)}
+                        required
+                      />
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="city">Stadt *</Label>
+                      <Input
+                        id="city"
+                        value={formData.city}
+                        onChange={(e) => handleInputChange("city", e.target.value)}
+                        required
+                      />
+                    </div>
+                  </div>
+
+                  {/* Energy Types */}
+                  <div className="space-y-2">
+                    <Label>Energiearten *</Label>
+                    <div className="grid grid-cols-2 gap-4">
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="solar"
+                          checked={formData.energyTypes.includes("solar")}
+                          onCheckedChange={(checked) => handleEnergyTypeChange("solar", checked as boolean)}
+                        />
+                        <Label htmlFor="solar">Solar</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="wind"
+                          checked={formData.energyTypes.includes("wind")}
+                          onCheckedChange={(checked) => handleEnergyTypeChange("wind", checked as boolean)}
+                        />
+                        <Label htmlFor="wind">Wind</Label>
+                      </div>
+                    </div>
+                  </div>
+
+                  {/* Services */}
+                  <div className="space-y-2">
+                    <Label>Angebotene Leistungen *</Label>
+                    <div className="grid grid-cols-2 gap-4">
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="planning"
+                          checked={formData.services.includes("planning")}
+                          onCheckedChange={(checked) => handleServiceChange("planning", checked as boolean)}
+                        />
+                        <Label htmlFor="planning">Planung & Beratung</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="installation"
+                          checked={formData.services.includes("installation")}
+                          onCheckedChange={(checked) => handleServiceChange("installation", checked as boolean)}
+                        />
+                        <Label htmlFor="installation">Installation</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="maintenance"
+                          checked={formData.services.includes("maintenance")}
+                          onCheckedChange={(checked) => handleServiceChange("maintenance", checked as boolean)}
+                        />
+                        <Label htmlFor="maintenance">Wartung & Service</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <Checkbox
+                          id="financing"
+                          checked={formData.services.includes("financing")}
+                          onCheckedChange={(checked) => handleServiceChange("financing", checked as boolean)}
+                        />
+                        <Label htmlFor="financing">Finanzierung</Label>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                    <div className="space-y-2">
+                      <Label htmlFor="experience">Jahre Erfahrung *</Label>
+                      <Select value={formData.experience} onValueChange={(value) => handleInputChange("experience", value)}>
+                        <SelectTrigger>
+                          <SelectValue placeholder="Erfahrung wählen" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="0-2">0-2 Jahre</SelectItem>
+                          <SelectItem value="3-5">3-5 Jahre</SelectItem>
+                          <SelectItem value="6-10">6-10 Jahre</SelectItem>
+                          <SelectItem value="10+">Über 10 Jahre</SelectItem>
+                        </SelectContent>
+                      </Select>
+                    </div>
+                    <div className="space-y-2">
+                      <Label htmlFor="coverageArea">Einzugsgebiet</Label>
+                      <Input
+                        id="coverageArea"
+                        value={formData.coverageArea}
+                        onChange={(e) => handleInputChange("coverageArea", e.target.value)}
+                        placeholder="z.B. Bayern, 50km Umkreis"
+                      />
+                    </div>
+                  </div>
+
+                  <div className="space-y-2">
+                    <Label htmlFor="description">Unternehmensbeschreibung *</Label>
+                    <Textarea
+                      id="description"
+                      placeholder="Beschreiben Sie Ihr Unternehmen, Ihre Spezialitäten und warum Kunden Sie wählen sollten..."
+                      value={formData.description}
+                      onChange={(e) => handleInputChange("description", e.target.value)}
+                      rows={4}
+                      required
+                    />
+                  </div>
+
+                  <div className="space-y-2">
+                    <Label>Kontaktpräferenz</Label>
+                    <div className="flex gap-4">
+                      <div className="flex items-center space-x-2">
+                        <input
+                          type="radio"
+                          id="email-pref"
+                          name="contactPreference"
+                          value="email"
+                          checked={formData.contactPreference === "email"}
+                          onChange={(e) => handleInputChange("contactPreference", e.target.value)}
+                        />
+                        <Label htmlFor="email-pref">E-Mail</Label>
+                      </div>
+                      <div className="flex items-center space-x-2">
+                        <input
+                          type="radio"
+                          id="phone-pref"
+                          name="contactPreference"
+                          value="phone"
+                          checked={formData.contactPreference === "phone"}
+                          onChange={(e) => handleInputChange("contactPreference", e.target.value)}
+                        />
+                        <Label htmlFor="phone-pref">Telefon</Label>
+                      </div>
+                    </div>
+                  </div>
+
+                  <div className="space-y-4">
+                    <div className="flex items-center space-x-2">
+                      <Checkbox
+                        id="newsletter"
+                        checked={formData.newsletter}
+                        onCheckedChange={(checked) => handleInputChange("newsletter", checked as boolean)}
+                      />
+                      <Label htmlFor="newsletter">
+                        Ich möchte über neue Funktionen und Marketing-Möglichkeiten informiert werden
+                      </Label>
+                    </div>
+                    <div className="flex items-center space-x-2">
+                      <Checkbox
+                        id="privacyPolicy"
+                        checked={formData.privacyPolicy}
+                        onCheckedChange={(checked) => handleInputChange("privacyPolicy", checked as boolean)}
+                        required
+                      />
+                      <Label htmlFor="privacyPolicy">
+                        Ich akzeptiere die <a href="/datenschutz" className="text-primary hover:underline">Datenschutzerklärung</a> *
+                      </Label>
+                    </div>
+                  </div>
+
+                  <Button type="submit" className="w-full" disabled={isSubmitting}>
+                    {isSubmitting ? "Wird gesendet..." : "Unternehmen anmelden"}
+                  </Button>
+                </form>
+              </CardContent>
+            </Card>
+          </div>
+
+          {/* Sidebar */}
+          <div className="space-y-6">
+            {/* Benefits */}
+            <Card>
+              <CardHeader>
+                <CardTitle>Ihre Vorteile</CardTitle>
+              </CardHeader>
+              <CardContent className="space-y-4">
+                <div className="flex items-start gap-3">
+                  <Users className="w-5 h-5 text-primary mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Neue Kunden gewinnen</h4>
+                    <p className="text-sm text-muted-foreground">Erreichen Sie potenzielle Kunden in Ihrer Region</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <Award className="w-5 h-5 text-primary mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Vertrauen aufbauen</h4>
+                    <p className="text-sm text-muted-foreground">Präsentieren Sie sich als verifizierter Experte</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <Clock className="w-5 h-5 text-primary mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Zeit sparen</h4>
+                    <p className="text-sm text-muted-foreground">Kunden finden Sie automatisch über unsere Plattform</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <Building2 className="w-5 h-5 text-primary mt-0.5 flex-shrink-0" />
+                  <div>
+                    <h4 className="font-semibold">Professioneller Auftritt</h4>
+                    <p className="text-sm text-muted-foreground">Präsentieren Sie Ihr Unternehmen professionell</p>
+                  </div>
+                </div>
+              </CardContent>
+            </Card>
+
+            {/* Process */}
+            <Card>
+              <CardHeader>
+                <CardTitle>Ablauf</CardTitle>
+              </CardHeader>
+              <CardContent className="space-y-4">
+                <div className="flex items-start gap-3">
+                  <div className="w-6 h-6 bg-primary text-white rounded-full flex items-center justify-center text-sm font-bold flex-shrink-0">1</div>
+                  <div>
+                    <h4 className="font-semibold">Anmeldung</h4>
+                    <p className="text-sm text-muted-foreground">Füllen Sie das Formular aus</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <div className="w-6 h-6 bg-primary text-white rounded-full flex items-center justify-center text-sm font-bold flex-shrink-0">2</div>
+                  <div>
+                    <h4 className="font-semibold">Prüfung</h4>
+                    <p className="text-sm text-muted-foreground">Wir prüfen Ihre Angaben (48h)</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <div className="w-6 h-6 bg-primary text-white rounded-full flex items-center justify-center text-sm font-bold flex-shrink-0">3</div>
+                  <div>
+                    <h4 className="font-semibold">Freischaltung</h4>
+                    <p className="text-sm text-muted-foreground">Ihr Profil wird veröffentlicht</p>
+                  </div>
+                </div>
+                <div className="flex items-start gap-3">
+                  <div className="w-6 h-6 bg-primary text-white rounded-full flex items-center justify-center text-sm font-bold flex-shrink-0">4</div>
+                  <div>
+                    <h4 className="font-semibold">Kundenkontakte</h4>
+                    <p className="text-sm text-muted-foreground">Erhalten Sie Anfragen von Kunden</p>
+                  </div>
+                </div>
+              </CardContent>
+            </Card>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default UnternehmenListen;

src/pages/Wind.tsx

@@ -1,5 +1,6 @@
 import Header from "@/components/Header";
 import Footer from "@/components/Footer";
+import WindCalculator from "@/components/WindCalculator";
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
 import { Wind, Zap, TrendingUp, Shield, ArrowRight } from "lucide-react";
@@ -62,11 +63,6 @@ const WindPage = () => {
                   Wind-Installateur Finden
                 </Link>
               </Button>
-              <Button variant="wind-outline" size="xl" className="border-white/30 text-white hover:bg-white hover:text-wind">
-                <Link to="/kostenlose-beratung?type=wind">
-                  Kostenlose Beratung
-                </Link>
-              </Button>
             </div>
           </div>
         </div>
@@ -106,6 +102,9 @@ const WindPage = () => {
         </div>
       </section>
 
+      {/* Wind Calculator Section */}
+      <WindCalculator />
+
       {/* CTA Section */}
       <section className="py-20 bg-gradient-wind text-white">
         <div className="container mx-auto px-4 text-center">
@@ -118,8 +117,8 @@ const WindPage = () => {
           
           <div className="flex flex-col sm:flex-row gap-4 justify-center">
             <Button variant="hero" size="xl" className="bg-white text-wind hover:bg-white/90" asChild>
-              <Link to="/kostenlose-beratung?type=wind">
+              <Link to="/installateur-finden?type=wind">
-                Jetzt kostenlose Beratung anfordern
+                Wind-Installateure finden
                 <ArrowRight className="w-5 h-5 ml-2" />
               </Link>
             </Button>

tailwind.config.ts

@@ -65,18 +65,6 @@ export default {
 					light: 'hsl(var(--wind-light))',
 					dark: 'hsl(var(--wind-dark))'
 				},
-				geo: {
-					DEFAULT: 'hsl(var(--geo-primary))',
-					secondary: 'hsl(var(--geo-secondary))',
-					light: 'hsl(var(--geo-light))',
-					dark: 'hsl(var(--geo-dark))'
-				},
-				battery: {
-					DEFAULT: 'hsl(var(--battery-primary))',
-					secondary: 'hsl(var(--battery-secondary))',
-					light: 'hsl(var(--battery-light))',
-					dark: 'hsl(var(--battery-dark))'
-				},
 				sidebar: {
 					DEFAULT: 'hsl(var(--sidebar-background))',
 					foreground: 'hsl(var(--sidebar-foreground))',
@@ -91,15 +79,11 @@ export default {
 			backgroundImage: {
 				'gradient-solar': 'var(--gradient-solar)',
 				'gradient-wind': 'var(--gradient-wind)',
-				'gradient-geo': 'var(--gradient-geo)',
-				'gradient-battery': 'var(--gradient-battery)',
 				'gradient-hero': 'var(--gradient-hero)'
 			},
 			boxShadow: {
 				'solar': 'var(--shadow-solar)',
-				'wind': 'var(--shadow-wind)',
+				'wind': 'var(--shadow-wind)'
-				'geo': 'var(--shadow-geo)',
-				'battery': 'var(--shadow-battery)'
 			},
 			transitionTimingFunction: {
 				'smooth': 'cubic-bezier(0.4, 0, 0.2, 1)',