// Template Import/Export Functions
        function exportTemplates() {
            if (customTemplates.length === 0) {
                alert('Sie haben keine eigenen Templates zum Exportieren!');
                return;
            }

            const exportData = {
                templates: customTemplates,
                exported_at: new Date().toISOString(),
                version: '1.0'
            };

            const blob = new Blob([JSON.stringify(exportData, null, 2)], { type: 'application/json' });
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = 'scma-templates-export.json';
            document.body.appendChild(a);
            a.click();
            document.body.removeChild(a);
            URL.revokeObjectURL(url);

            alert(`${customTemplates.length} Template(s) erfolgreich exportiert!`);
        }

        function importTemplates() {
            const input = document.createElement('input');
            input.type = 'file';
            input.accept = '.json';
            input.onchange = function(event) {
                const file = event.target.files[0];
                if (file) {
                    const reader = new FileReader();
                    reader.onload = function(e) {
                        try {
                            const importData = JSON.parse(e.target.result);
                            if (importData.templates && Array.isArray(importData.templates)) {
                                if (confirm(`${importData.templates.length} Template(s) importieren? Vorhandene Templates mit gleichen Namen werden überschrieben.`)) {
                                    // Merge imported templates
                                    importData.templates.forEach(importedTemplate => {
                                        const existingIndex = customTemplates.findIndex(t => t.name === importedTemplate.name);
                                        if (existingIndex >= 0) {
                                            // Update existing template
                                            customTemplates[existingIndex] = {
                                                ...importedTemplate,
                                                id: customTemplates[existingIndex].id, // Keep original ID
                                                imported: new Date().toISOString()
                                            };
                                        } else {
                                            // Add new template
                                            customTemplates.push({
                                                ...importedTemplate,
                                                id: 'imported_' + Date.now() + '_' + Math.random().toString(36).substr(2, 9),
                                                imported: new Date().toISOString()
                                            });
                                        }
                                    });
                                    
                                    saveCustomTemplates();
                                    alert('Templates erfolgreich importiert!');
                                    
                                    // Refresh template list if modal is open
                                    const templateList = document.getElementById('templateList');
                                    if (templateList) {
                                        switchTemplateCategory('custom');
                                    }
                                }
                            } else {
                                alert('Ungültiges Template-Format!');
                            }
                        } catch (error) {
                            alert('Fehler beim Importieren der Templates: ' + error.message);
                        }
                    };
                    reader.readAsText(file);
                }
            };
            input.click();
        }

        // Predefined Template Loaders
        function createTemplateComponent(type, properties) {
            const component = {
                id: 'comp_' + (++componentCounter),
                type: type,
                properties: { ...getDefaultProperties(type), ...properties }
            };
            return component;
        }

        function loadBasicECommerceTemplate() {
            // Clear current data
            Object.keys(scmaData).forEach(key => {
                scmaData[key] = [];
            });
            componentCounter = 0;
            
            // Artikel Tab
            scmaData.artikel = [
                createTemplateComponent('checkbox', {
                    name: 'import_enabled',
                    title: 'Auftragsimport aktivieren',
                    default_value: true
                }),
                createTemplateComponent('select', {
                    name: 'import_interval',
                    title: 'Importintervall',
                    options: ['5 Minuten', '15 Minuten', '1 Stunde'],
                    required: true
                })
            ];

            // Einstellungen Tab
            scmaData.einstellungen = [
                createTemplateComponent('section', {
                    title: 'API-Verbindung',
                    description: 'Konfiguration der API-Verbindung',
                    icon: '🔗'
                }),
                createTemplateComponent('text_input', {
                    name: 'api_url',
                    title: 'API-URL',
                    placeholder: 'https://api.beispiel.de',
                    required: true
                }),
                createTemplateComponent('password', {
                    name: 'api_key',
                    title: 'API-Schlüssel',
                    required: true
                }),
                createTemplateComponent('button', {
                    title: 'Verbindung testen',
                    style: 'primary',
                    action: 'test_connection'
                })
            ];
        }

        function loadShopifyAdvancedTemplate() {
            Object.keys(scmaData).forEach(key => {
                scmaData[key] = [];
            });
            componentCounter = 0;

            // Artikel Tab
            scmaData.artikel = [
                createTemplateComponent('section', {
                    title: 'Shopify Produktsynchronisation',
                    description: 'Erweiterte Einstellungen für Shopify-Produkte',
                    icon: '🛍️'
                }),
                createTemplateComponent('checkbox', {
                    name: 'sync_variants',
                    title: 'Produktvarianten synchronisieren',
                    default_value: true
                }),
                createTemplateComponent('checkbox', {
                    name: 'sync_images',
                    title: 'Produktbilder synchronisieren',
                    default_value: true
                }),
                createTemplateComponent('mapping_table', {
                    name: 'product_field_mapping',
                    title: 'Produktfeld-Mapping',
                    description: 'Zuordnung zwischen Xentral und Shopify Feldern'
                })
            ];

            // Preise Tab
            scmaData.preise = [
                createTemplateComponent('section', {
                    title: 'Shopify Preissynchronisation',
                    description: 'Preismanagement für Shopify',
                    icon: '💰'
                }),
                createTemplateComponent('checkbox', {
                    name: 'price_sync_enabled',
                    title: 'PreissynchronComponent('section', {
                    title: 'Artikelsynchronisation',
                    description: 'Grundeinstellungen für die Produktsynchronisation',
                    icon: '📦'
                }),
                createTemplateComponent('checkbox', {
                    name: 'sync_enabled',
                    title: 'Artikelsynchronisation aktivieren',
                    default_value: true
                }),
                createTemplateComponent('select', {
                    name: 'sync_interval',
                    title: 'Synchronisationsintervall',
                    options: ['5 Minuten', '15 Minuten', '1 Stunde', 'Täglich'],
                    required: true
                })
            ];

            // Aufträge Tab
            scmaData.auftrag = [
                createTemplateComponent('section', {
                    title: 'Auftragsimport',
                    description: 'Konfiguration des automatischen Auftragsimports',
                    icon: '🛒'
                }),
                createTemplate<!DOCTYPE html>
<html lang="de">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>SCMA UI Builder - Xentral Connect</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: #f8fafc;
            height: 100vh;
            overflow: hidden;
        }

        .builder-layout {
            display: grid;
            grid-template-areas: 
                "header header header"
                "palette canvas properties";
            grid-template-columns: 280px 1fr 320px;
            grid-template-rows: 60px 1fr;
            height: 100vh;
        }

        /* Header */
        .header {
            grid-area: header;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            display: flex;
            align-items: center;
            justify-content: between;
            padding: 0 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .header-title {
            font-size: 1.25rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .header-actions {
            display: flex;
            gap: 12px;
            margin-left: auto;
        }

        .btn {
            padding: 8px 16px;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .btn-outline {
            background: transparent;
            color: white;
            border: 1px solid rgba(255,255,255,0.3);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
        }

        .btn-primary {
            background: #3b82f6;
            color: white;
        }

        .btn-primary:hover {
            background: #2563eb;
        }

        /* Component Palette */
        .palette {
            grid-area: palette;
            background: white;
            border-right: 1px solid #e5e7eb;
            overflow-y: auto;
        }

        .palette-header {
            padding: 20px;
            border-bottom: 1px solid #e5e7eb;
        }

        .palette-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #111827;
            margin-bottom: 8px;
        }

        .palette-subtitle {
            font-size: 0.875rem;
            color: #6b7280;
        }

        .component-group {
            padding: 16px 20px;
            border-bottom: 1px solid #f3f4f6;
        }

        .group-title {
            font-size: 0.75rem;
            font-weight: 600;
            color: #6b7280;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .component-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            background: #f9fafb;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            margin-bottom: 8px;
            cursor: grab;
            transition: all 0.2s;
        }

        .component-item:hover {
            background: #f3f4f6;
            border-color: #3b82f6;
            transform: translateY(-1px);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .component-item:active {
            cursor: grabbing;
            transform: scale(0.98);
        }

        .component-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .component-name {
            font-weight: 500;
            color: #374151;
            font-size: 0.875rem;
        }

        /* Canvas Area */
        .canvas-area {
            grid-area: canvas;
            background: white;
            display: flex;
            flex-direction: column;
        }

        .canvas-toolbar {
            background: #f9fafb;
            border-bottom: 1px solid #e5e7eb;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .tab-selector {
            display: flex;
            background: #e5e7eb;
            border-radius: 6px;
            padding: 2px;
        }

        .tab-btn {
            padding: 6px 12px;
            border: none;
            background: transparent;
            color: #6b7280;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.2s;
        }

        .tab-btn.active {
            background: white;
            color: #111827;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        .canvas {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            position: relative;
            min-height: 400px;
        }

        .canvas-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: #9ca3af;
            text-align: center;
        }

        .canvas-empty-icon {
            font-size: 48px;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        .canvas-empty h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #6b7280;
        }

        .canvas-empty p {
            font-size: 0.875rem;
            max-width: 400px;
        }

        .canvas.drag-over {
            background: linear-gradient(45deg, #f3f4f6 25%, transparent 25%),
                        linear-gradient(-45deg, #f3f4f6 25%, transparent 25%),
                        linear-gradient(45deg, transparent 75%, #f3f4f6 75%),
                        linear-gradient(-45deg, transparent 75%, #f3f4f6 75%);
            background-size: 16px 16px;
        }

        /* Components in Canvas */
        .canvas-section {
            background: white;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.2s;
            position: relative;
        }

        .canvas-section:hover {
            border-color: #3b82f6;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .canvas-section.selected {
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

        .section-header {
            background: #f9fafb;
            padding: 16px 20px;
            border-bottom: 1px solid #e5e7eb;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .section-title {
            font-weight: 600;
            color: #111827;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .section-content {
            padding: 20px;
            min-height: 60px;
        }

        .form-field {
            background: #f9fafb;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            padding: 16px;
            margin-bottom: 12px;
            position: relative;
            transition: all 0.2s;
        }

        .form-field:hover {
            border-color: #3b82f6;
        }

        .form-field.selected {
            border-color: #3b82f6;
            background: #eff6ff;
            box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
        }

        .field-label {
            font-weight: 500;
            color: #374151;
            margin-bottom: 8px;
            font-size: 0.875rem;
        }

        .field-input {
            width: 100%;
            padding: 8px 12px;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-size: 0.875rem;
            background: white;
        }

        .field-input:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

        .component-actions {
            position: absolute;
            top: 8px;
            right: 8px;
            display: flex;
            gap: 4px;
            opacity: 0;
            transition: opacity 0.2s;
        }

        .canvas-section:hover .component-actions,
        .form-field:hover .component-actions {
            opacity: 1;
        }

        .action-btn {
            width: 28px;
            height: 28px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all 0.2s;
            color: white;
        }

        .action-btn.edit {
            background: #3b82f6;
        }

        .action-btn.delete {
            background: #ef4444;
        }

        .action-btn:hover {
            transform: scale(1.05);
        }

        /* Properties Panel */
        .properties {
            grid-area: properties;
            background: white;
            border-left: 1px solid #e5e7eb;
            display: flex;
            flex-direction: column;
        }

        .properties-header {
            padding: 20px;
            border-bottom: 1px solid #e5e7eb;
        }

        .properties-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #111827;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .properties-content {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
        }

        .property-group {
            margin-bottom: 24px;
        }

        .property-label {
            display: block;
            font-weight: 500;
            color: #374151;
            margin-bottom: 6px;
            font-size: 0.875rem;
        }

        .property-input {
            width: 100%;
            padding: 8px 12px;
            border: 1px solid #d1d5db;
            border-radius: 6px;
            font-size: 0.875rem;
            margin-bottom: 12px;
            transition: border-color 0.2s;
        }

        .property-input:focus {
            outline: none;
            border-color: #3b82f6;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

        .property-checkbox {
            margin-right: 8px;
        }

        .no-selection {
            text-align: center;
            color: #9ca3af;
            padding: 40px 20px;
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            backdrop-filter: blur(4px);
        }

        .modal-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            border-radius: 12px;
            width: 90%;
            max-width: 800px;
            max-height: 90vh;
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        }

        .modal-header {
            padding: 20px 24px;
            border-bottom: 1px solid #e5e7eb;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .modal-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #111827;
        }

        .close-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #6b7280;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            transition: all 0.2s;
        }

        .close-btn:hover {
            background: #f3f4f6;
        }

        .modal-body {
            padding: 24px;
            max-height: 60vh;
            overflow-y: auto;
        }

        .yaml-output {
            background: #1f2937;
            color: #f9fafb;
            padding: 20px;
            border-radius: 8px;
            font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
            font-size: 13px;
            line-height: 1.5;
            white-space: pre-wrap;
            overflow-x: auto;
        }

        .modal-footer {
            padding: 20px 24px;
            border-top: 1px solid #e5e7eb;
            display: flex;
            gap: 12px;
            justify-content: flex-end;
        }

        /* Template Manager Styles */
        .template-category:hover {
            background: #e5e7eb !important;
            color: #111827 !important;
        }
        
        .template-category.active:hover {
            background: #2563eb !important;
            color: white !important;
        }
        
        .template-card {
            background: white;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            padding: 16px;
            margin-bottom: 12px;
            transition: all 0.2s;
            position: relative;
        }
        
        .template-card:hover {
            border-color: #3b82f6;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            transform: translateY(-1px);
        }
        
        .template-load-area {
            cursor: pointer;
        }
        
        .template-actions {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }
        
        .template-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: #6b7280;
            margin-top: 8px;
        }
        
        .template-action-btn {
            background: #3b82f6;
            color: white;
            border: none;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .template-action-btn:hover {
            background: #2563eb;
        }
        
        .template-action-btn.delete {
            background: #ef4444;
        }
        
        .template-action-btn.delete:hover {
            background: #dc2626;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .builder-layout {
                grid-template-columns: 250px 1fr 280px;
            }
        }

        @media (max-width: 768px) {
            .builder-layout {
                grid-template-areas: 
                    "header"
                    "canvas";
                grid-template-columns: 1fr;
                grid-template-rows: 60px 1fr;
            }
            
            .palette,
            .properties {
                display: none;
            }
        }

        /* Animations */
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .canvas-section,
        .form-field {
            animation: slideIn 0.2s ease-out;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }
    </style>
</head>
<body>
    <div class="builder-layout">
        <!-- Header -->
        <div class="header">
            <div class="header-title">
                🔧 SCMA UI Builder
            </div>
            <div class="header-actions">
                <button class="btn btn-outline" onclick="loadTemplate()">
                    📁 Template laden
                </button>
                <button class="btn btn-outline" onclick="previewSCMA()">
                    👁️ Vorschau
                </button>
                <button class="btn btn-primary" onclick="exportYAML()">
                    📤 YAML exportieren
                </button>
            </div>
        </div>

        <!-- Component Palette -->
        <div class="palette">
            <div class="palette-header">
                <div class="palette-title">Komponenten</div>
                <div class="palette-subtitle">Drag & Drop Elemente</div>
            </div>

            <div class="component-group">
                <div class="group-title">Layout</div>
                <div class="component-item" draggable="true" data-type="section">
                    <span class="component-icon">📋</span>
                    <span class="component-name">Section</span>
                </div>
                <div class="component-item" draggable="true" data-type="fieldset">
                    <span class="component-icon">🗂️</span>
                    <span class="component-name">Fieldset</span>
                </div>
            </div>

            <div class="component-group">
                <div class="group-title">Eingabefelder</div>
                <div class="component-item" draggable="true" data-type="text_input">
                    <span class="component-icon">📝</span>
                    <span class="component-name">Text Input</span>
                </div>
                <div class="component-item" draggable="true" data-type="textarea">
                    <span class="component-icon">📄</span>
                    <span class="component-name">Textarea</span>
                </div>
                <div class="component-item" draggable="true" data-type="select">
                    <span class="component-icon">📋</span>
                    <span class="component-name">Dropdown</span>
                </div>
                <div class="component-item" draggable="true" data-type="checkbox">
                    <span class="component-icon">☑️</span>
                    <span class="component-name">Checkbox</span>
                </div>
                <div class="component-item" draggable="true" data-type="number_input">
                    <span class="component-icon">🔢</span>
                    <span class="component-name">Number Input</span>
                </div>
                <div class="component-item" draggable="true" data-type="password">
                    <span class="component-icon">🔐</span>
                    <span class="component-name">Password</span>
                </div>
            </div>

            <div class="component-group">
                <div class="group-title">Erweitert</div>
                <div class="component-item" draggable="true" data-type="mapping_table">
                    <span class="component-icon">🔗</span>
                    <span class="component-name">Mapping Table</span>
                </div>
                <div class="component-item" draggable="true" data-type="button">
                    <span class="component-icon">🔘</span>
                    <span class="component-name">Button</span>
                </div>
            </div>
        </div>

        <!-- Canvas Area -->
        <div class="canvas-area">
            <div class="canvas-toolbar">
                <div class="tab-selector">
                    <button class="tab-btn active" data-tab="artikel" onclick="switchTab('artikel')">Artikel</button>
                    <button class="tab-btn" data-tab="auftrag" onclick="switchTab('auftrag')">Aufträge</button>
                    <button class="tab-btn" data-tab="preise" onclick="switchTab('preise')">Preise</button>
                    <button class="tab-btn" data-tab="bestand" onclick="switchTab('bestand')">Bestände</button>
                    <button class="tab-btn" data-tab="tracking" onclick="switchTab('tracking')">Tracking</button>
                    <button class="tab-btn" data-tab="einstellungen" onclick="switchTab('einstellungen')">Einstellungen</button>
                </div>
                <button class="btn btn-outline" onclick="clearCanvas()">🗑️ Leeren</button>
            </div>
            
            <div class="canvas" id="canvas">
                <div class="canvas-empty">
                    <div class="canvas-empty-icon">🎯</div>
                    <h3>SCMA Interface Designer</h3>
                    <p>Ziehen Sie Komponenten aus der linken Palette hierher, um Ihre SCMA-Oberfläche zu gestalten</p>
                </div>
            </div>
        </div>

        <!-- Properties Panel -->
        <div class="properties">
            <div class="properties-header">
                <div class="properties-title">⚙️ Eigenschaften</div>
            </div>
            <div class="properties-content" id="propertiesContent">
                <div class="no-selection">
                    <p>Wählen Sie eine Komponente aus, um deren Eigenschaften zu bearbeiten</p>
                </div>
            </div>
        </div>
    </div>

    <!-- Export Modal -->
    <div id="exportModal" class="modal">
        <div class="modal-content">
            <div class="modal-header">
                <h2 class="modal-title">YAML Export</h2>
                <button class="close-btn" onclick="closeModal()">&times;</button>
            </div>
            <div class="modal-body">
                <div id="yamlOutput" class="yaml-output"></div>
            </div>
            <div class="modal-footer">
                <button class="btn btn-outline" onclick="copyYAML()">📋 Kopieren</button>
                <button class="btn btn-primary" onclick="downloadYAML()">💾 Download</button>
            </div>
        </div>
    </div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/js-yaml/4.1.0/js-yaml.min.js"></script>
    <script>
        // Global State
        let currentTab = 'artikel';
        let selectedComponent = null;
        let componentCounter = 0;
        let scmaData = {
            artikel: [],
            auftrag: [],
            preise: [],
            bestand: [],
            tracking: [],
            einstellungen: []
        };
        let customTemplates = [];

        // Initialize
        document.addEventListener('DOMContentLoaded', function() {
            setupDragAndDrop();
            setupEventListeners();
            loadCustomTemplates();
            enableAutoSave();
            loadAutoSave();
        });

        // Drag and Drop
        function setupDragAndDrop() {
            const componentItems = document.querySelectorAll('.component-item');
            const canvas = document.getElementById('canvas');

            componentItems.forEach(item => {
                item.addEventListener('dragstart', (e) => {
                    e.dataTransfer.setData('text/plain', e.currentTarget.dataset.type);
                    e.dataTransfer.effectAllowed = 'copy';
                });
            });

            canvas.addEventListener('dragover', (e) => {
                e.preventDefault();
                e.dataTransfer.dropEffect = 'copy';
                canvas.classList.add('drag-over');
            });

            canvas.addEventListener('dragleave', (e) => {
                if (!canvas.contains(e.relatedTarget)) {
                    canvas.classList.remove('drag-over');
                }
            });

            canvas.addEventListener('drop', (e) => {
                e.preventDefault();
                canvas.classList.remove('drag-over');
                const componentType = e.dataTransfer.getData('text/plain');
                createComponent(componentType);
            });
        }

        // Component Management
        function createComponent(type) {
            const componentId = 'comp_' + (++componentCounter);
            const component = {
                id: componentId,
                type: type,
                properties: getDefaultProperties(type)
            };

            scmaData[currentTab].push(component);
            renderComponent(component);
            removeEmptyState();
            selectComponent(componentId);
        }

        function getDefaultProperties(type) {
            const defaults = {
                section: {
                    title: 'Neue Section',
                    description: 'Section Beschreibung',
                    icon: '⚙️'
                },
                text_input: {
                    name: 'text_field',
                    title: 'Text Eingabe',
                    description: '',
                    required: false,
                    placeholder: ''
                },
                textarea: {
                    name: 'textarea_field',
                    title: 'Mehrzeiliger Text',
                    description: '',
                    required: false,
                    rows: 4
                },
                select: {
                    name: 'select_field',
                    title: 'Dropdown Auswahl',
                    required: false,
                    options: ['Option 1', 'Option 2', 'Option 3']
                },
                checkbox: {
                    name: 'checkbox_field',
                    title: 'Checkbox',
                    default_value: false
                },
                number_input: {
                    name: 'number_field',
                    title: 'Zahleneingabe',
                    required: false,
                    min: 0,
                    max: 100,
                    default_value: 0
                },
                password: {
                    name: 'password_field',
                    title: 'Passwort',
                    required: true
                },
                button: {
                    title: 'Button',
                    style: 'primary',
                    action: 'custom_action'
                },
                mapping_table: {
                    name: 'mapping_field',
                    title: 'Feld-Mapping',
                    description: 'Zuordnung zwischen Systemen'
                }
            };
            return defaults[type] || {};
        }

        function renderComponent(component) {
            const canvas = document.getElementById('canvas');
            const element = createComponentElement(component);
            canvas.appendChild(element);
        }

        function createComponentElement(component) {
            const div = document.createElement('div');
            div.id = component.id;
            div.onclick = (e) => {
                e.stopPropagation();
                selectComponent(component.id);
            };

            if (component.type === 'section') {
                div.className = 'canvas-section';
                div.innerHTML = `
                    <div class="section-header">
                        <div class="section-title">
                            <span>${component.properties.icon}</span>
                            <span>${component.properties.title}</span>
                        </div>
                        <div class="component-actions">
                            <button class="action-btn edit" onclick="editComponent('${component.id}', event)" title="Bearbeiten">✏️</button>
                            <button class="action-btn delete" onclick="deleteComponent('${component.id}', event)" title="Löschen">🗑️</button>
                        </div>
                    </div>
                    <div class="section-content">
                        <p style="color: #6b7280; font-style: italic;">${component.properties.description}</p>
                    </div>
                `;
            } else {
                div.className = 'form-field';
                let html = `
                    <div class="field-label">${component.properties.title}${component.properties.required ? ' *' : ''}</div>
                `;

                switch (component.type) {
                    case 'text_input':
                        html += `<input type="text" class="field-input" placeholder="${component.properties.placeholder || ''}" readonly>`;
                        break;
                    case 'textarea':
                        html += `<textarea class="field-input" rows="${component.properties.rows || 4}" readonly></textarea>`;
                        break;
                    case 'select':
                        html += `
                            <select class="field-input" disabled>
                                <option>Bitte wählen...</option>
                                ${component.properties.options.map(opt => `<option>${opt}</option>`).join('')}
                            </select>
                        `;
                        break;
                    case 'checkbox':
                        html += `
                            <label style="display: flex; align-items: center; gap: 8px;">
                                <input type="checkbox" ${component.properties.default_value ? 'checked' : ''} disabled>
                                <span>${component.properties.title}</span>
                            </label>
                        `;
                        break;
                    case 'number_input':
                        html += `<input type="number" class="field-input" min="${component.properties.min}" max="${component.properties.max}" value="${component.properties.default_value}" readonly>`;
                        break;
                    case 'password':
                        html += `<input type="password" class="field-input" placeholder="••••••••" readonly>`;
                        break;
                    case 'button':
                        html += `<button class="btn btn-${component.properties.style}" disabled>${component.properties.title}</button>`;
                        break;
                    case 'mapping_table':
                        html += `
                            <div style="background: #f9fafb; padding: 16px; border: 1px solid #e5e7eb; border-radius: 6px;">
                                <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px;">
                                    <div style="font-weight: 600; text-align: center;">Quelle</div>
                                    <div style="font-weight: 600; text-align: center;">Ziel</div>
                                </div>
                                <div style="text-align: center; color: #6b7280; font-size: 0.875rem;">Mapping-Tabelle Konfiguration</div>
                            </div>
                        `;
                        break;
                    default:
                        html += `<div style="padding: 16px; text-align: center; color: #9ca3af; border: 1px dashed #d1d5db; border-radius: 6px;">Komponente: ${component.type}</div>`;