fix(docs): card overflow, sequencing, colour legend, and category fixes

Fixed multiple issues with the docs page card-based document view:

**Card Overflow Fixed:**
- Added overflow-x-hidden to #document-content container
- Added w-full max-w-full to card-grid-container
- Added w-full to grid itself
- Added max-w-full overflow-hidden to individual cards
- Cards now stay within container boundaries at all viewport sizes

**Long Title Wrapping:**
- Added insertSoftHyphens() method to break CamelCase words
- Inserts soft hyphens (­) before capitals in compound words
- Examples: "InstructionPersistenceClassifier" → "Instruction­Persistence­Classifier"
- Titles now wrap intelligently without being cut off

**Colour Legend (Option C):**
- Added toggle button (ℹ️) next to ToC and PDF buttons
- Popup shows all 5 colour codes with descriptions
- Translated to EN ("Colour Guide"), DE ("Farbcode"), FR ("Guide des couleurs")
- Fixed colour square visibility (bg-500 with borders instead of bg-400)
- Click outside to close functionality

**Card Sequencing:**
- Cards now display in original markdown document order
- Removed groupByCategory() grouping logic
- Removed category header sections
- Color coding preserved based on section category

**Category Fallback Bug:**
- Fixed invalid fallback category 'downloads-resources' → 'resources'
- Ensures uncategorized documents go to valid category

**Database Migration:**
- Added scripts/move-guides-to-resources.js
- Moved 3 implementation guides from getting-started to resources
- Getting Started now contains only: Introduction, Core Concepts
- Resources now contains: Implementation guides

**Result:**
✅ Cards respect container width (no overflow)
✅ Long titles wrap with hyphens (no cutoff)
✅ Colour legend accessible and translated
✅ Cards in logical reading order from markdown
✅ Implementation guides in correct category

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

public/docs.html

@@ -587,7 +587,7 @@
           <span class="font-medium text-gray-700">Back to Documents</span>
         </button>
 
-        <div id="document-content" class="bg-white rounded-lg shadow-sm border border-gray-200 p-8">
+        <div id="document-content" class="bg-white rounded-lg shadow-sm border border-gray-200 p-8 overflow-x-hidden">
           <div class="text-center py-12">
             <svg class="mx-auto h-12 w-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
               <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/>

public/js/components/document-cards.js

@@ -8,6 +8,43 @@ class DocumentCards {
     this.container = document.getElementById(containerId);
     this.currentDocument = null;
     this.modalViewer = new ModalViewer();
+    this.legendVisible = false;
+  }
+
+  /**
+   * Get translations for color legend
+   */
+  getLegendTranslations() {
+    const lang = (window.I18n && window.I18n.currentLang) || 'en';
+
+    const translations = {
+      en: {
+        title: 'Colour Guide',
+        critical: 'Critical sections',
+        conceptual: 'Conceptual explanations',
+        practical: 'Practical guides',
+        technical: 'Technical details',
+        reference: 'Reference documentation'
+      },
+      de: {
+        title: 'Farbcode',
+        critical: 'Kritische Abschnitte',
+        conceptual: 'Konzeptionelle Erklärungen',
+        practical: 'Praktische Anleitungen',
+        technical: 'Technische Details',
+        reference: 'Referenzdokumentation'
+      },
+      fr: {
+        title: 'Guide des couleurs',
+        critical: 'Sections critiques',
+        conceptual: 'Explications conceptuelles',
+        practical: 'Guides pratiques',
+        technical: 'Détails techniques',
+        reference: 'Documentation de référence'
+      }
+    };
+
+    return translations[lang] || translations.en;
   }
 
   /**
@@ -24,11 +61,8 @@ class DocumentCards {
     // Create document header
     const headerHtml = this.renderHeader(document);
 
-    // Group sections by category
-    const sectionsByCategory = this.groupByCategory(document.sections);
-
-    // Render card grid
-    const cardsHtml = this.renderCardGrid(sectionsByCategory);
+    // Render cards in original markdown order (no grouping)
+    const cardsHtml = this.renderCardGrid(document.sections);
 
     this.container.innerHTML = `
       ${headerHtml}
@@ -59,6 +93,7 @@ class DocumentCards {
       .join(' | ');
 
     const hasToC = document.toc && document.toc.length > 0;
+    const t = this.getLegendTranslations();
 
     return `
       <div class="flex items-center justify-between mb-6 pb-4 border-b border-gray-200">
@@ -67,7 +102,42 @@ class DocumentCards {
           ${metaText ? `<p class="text-sm text-gray-500">${metaText}</p>` : ''}
           ${document.sections ? `<p class="text-sm text-gray-600 mt-1">${document.sections.length} sections</p>` : ''}
         </div>
+        <div class="flex items-center gap-2 relative">
+          ${document.sections && document.sections.length > 0 ? `
+            <button id="color-legend-button"
+                    class="p-2 text-gray-600 hover:text-blue-600 hover:bg-blue-50 rounded transition"
+                    title="${t.title}"
+                    aria-label="${t.title}">
+              <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/>
+              </svg>
+            </button>
+            <div id="color-legend-popup" class="hidden absolute top-12 right-0 bg-white border border-gray-200 rounded-lg shadow-xl p-4 z-50 w-72">
+              <h3 class="text-sm font-bold text-gray-900 mb-3">${t.title}</h3>
+              <div class="space-y-2 text-sm">
                 <div class="flex items-center gap-2">
+                  <div class="w-4 h-4 bg-red-500 border border-red-600 rounded"></div>
+                  <span class="text-gray-700">${t.critical}</span>
+                </div>
+                <div class="flex items-center gap-2">
+                  <div class="w-4 h-4 bg-blue-500 border border-blue-600 rounded"></div>
+                  <span class="text-gray-700">${t.conceptual}</span>
+                </div>
+                <div class="flex items-center gap-2">
+                  <div class="w-4 h-4 bg-green-500 border border-green-600 rounded"></div>
+                  <span class="text-gray-700">${t.practical}</span>
+                </div>
+                <div class="flex items-center gap-2">
+                  <div class="w-4 h-4 bg-purple-500 border border-purple-600 rounded"></div>
+                  <span class="text-gray-700">${t.technical}</span>
+                </div>
+                <div class="flex items-center gap-2">
+                  <div class="w-4 h-4 bg-gray-500 border border-gray-600 rounded"></div>
+                  <span class="text-gray-700">${t.reference}</span>
+                </div>
+              </div>
+            </div>
+          ` : ''}
           ${hasToC ? `
             <button id="toc-button"
                     class="p-2 text-gray-600 hover:text-blue-600 hover:bg-blue-50 rounded transition"
@@ -120,49 +190,40 @@ class DocumentCards {
   /**
    * Render card grid
    */
-  renderCardGrid(sectionsByCategory) {
+  renderCardGrid(sections) {
     const categoryConfig = {
-      critical: { icon: '⚠️', label: 'Critical', color: 'red', order: 1 },
-      conceptual: { icon: '📘', label: 'Conceptual', color: 'blue', order: 2 },
-      practical: { icon: '✨', label: 'Practical', color: 'green', order: 3 },
-      technical: { icon: '🔧', label: 'Technical', color: 'purple', order: 4 },
-      reference: { icon: '📋', label: 'Reference', color: 'gray', order: 5 }
+      critical: { color: 'red' },
+      conceptual: { color: 'blue' },
+      practical: { color: 'green' },
+      technical: { color: 'purple' },
+      reference: { color: 'gray' }
     };
 
-    let html = '<div class="card-grid-container">';
-
-    // Render categories in priority order (critical first)
-    const orderedCategories = Object.entries(sectionsByCategory)
-      .filter(([category, sections]) => sections.length > 0)
-      .sort((a, b) => {
-        const orderA = categoryConfig[a[0]]?.order || 999;
-        const orderB = categoryConfig[b[0]]?.order || 999;
-        return orderA - orderB;
-      });
-
-    // Render each category that has sections
-    for (const [category, sections] of orderedCategories) {
-
-      const config = categoryConfig[category];
-
-      html += `
-        <div class="category-section mb-8">
-          <h2 class="category-header text-lg font-semibold text-gray-700 mb-4 flex items-center">
-            <span class="text-2xl mr-2">${config.icon}</span>
-            ${config.label}
-          </h2>
-          <div class="card-grid grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
-            ${sections.map(section => this.renderCard(section, config.color)).join('')}
+    // Render all cards in original markdown order (no grouping)
+    const html = `
+      <div class="card-grid-container w-full max-w-full overflow-hidden">
+        <div class="card-grid grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 w-full">
+          ${sections.map(section => {
+            const category = section.category || 'conceptual';
+            const color = categoryConfig[category]?.color || 'blue';
+            return this.renderCard(section, color);
+          }).join('')}
         </div>
       </div>
     `;
-    }
-
-    html += '</div>';
 
     return html;
   }
 
+  /**
+   * Insert soft hyphens in CamelCase words for better wrapping
+   */
+  insertSoftHyphens(text) {
+    // Insert soft hyphens (&shy;) before capital letters in CamelCase words
+    // e.g., "InstructionPersistenceClassifier" → "Instruction&shy;Persistence&shy;Classifier"
+    return text.replace(/([a-z])([A-Z])/g, '$1&shy;$2');
+  }
+
   /**
    * Render individual card
    */
@@ -176,6 +237,9 @@ class DocumentCards {
     const levelIcon = levelIcons[section.technicalLevel] || '○';
     const levelLabel = section.technicalLevel.charAt(0).toUpperCase() + section.technicalLevel.slice(1);
 
+    // Add soft hyphens to long titles for better wrapping
+    const titleWithHyphens = this.insertSoftHyphens(section.title);
+
     const borderColor = {
       red: 'border-red-500',
       blue: 'border-blue-400',
@@ -201,13 +265,13 @@ class DocumentCards {
     }[color] || 'bg-blue-50';
 
     return `
-      <div class="doc-card ${bgColor} border-2 ${borderColor} rounded-lg p-5 cursor-pointer transition-all duration-200 ${hoverColor} hover:shadow-lg"
+      <div class="doc-card ${bgColor} border-2 ${borderColor} rounded-lg p-5 cursor-pointer transition-all duration-200 ${hoverColor} hover:shadow-lg min-w-0 max-w-full overflow-hidden"
            data-section-slug="${section.slug}">
-        <h3 class="text-lg font-semibold text-gray-900 mb-3">${section.title}</h3>
-        <p class="text-sm text-gray-700 mb-4 line-clamp-3">${section.excerpt}</p>
-        <div class="flex items-center justify-between text-xs text-gray-600">
-          <span>${section.readingTime} min read</span>
-          <span title="${levelLabel}">${levelIcon} ${levelLabel}</span>
+        <h3 class="text-lg font-semibold text-gray-900 mb-3 break-words overflow-wrap-anywhere">${titleWithHyphens}</h3>
+        <p class="text-sm text-gray-700 mb-4 line-clamp-3 break-words overflow-wrap-anywhere">${section.excerpt}</p>
+        <div class="flex items-center justify-between text-xs text-gray-600 gap-2">
+          <span class="truncate">${section.readingTime} min read</span>
+          <span title="${levelLabel}" class="flex-shrink-0">${levelIcon} ${levelLabel}</span>
         </div>
       </div>
     `;
@@ -257,6 +321,28 @@ class DocumentCards {
         }
       });
     }
+
+    // Attach color legend toggle listener
+    const legendButton = document.getElementById('color-legend-button');
+    const legendPopup = document.getElementById('color-legend-popup');
+    if (legendButton && legendPopup) {
+      legendButton.addEventListener('click', (e) => {
+        e.preventDefault();
+        e.stopPropagation();
+        legendPopup.classList.toggle('hidden');
+        this.legendVisible = !this.legendVisible;
+      });
+
+      // Close legend when clicking outside
+      document.addEventListener('click', (e) => {
+        if (this.legendVisible &&
+            !legendButton.contains(e.target) &&
+            !legendPopup.contains(e.target)) {
+          legendPopup.classList.add('hidden');
+          this.legendVisible = false;
+        }
+      });
+    }
   }
 }
 

public/js/docs-app.js

@@ -348,16 +348,16 @@ function categorizeDocument(doc) {
   }
 
   // Use category from database
-  const category = doc.category || 'downloads-resources';
+  const category = doc.category || 'resources';
 
   // Validate category exists in CATEGORIES constant
   if (CATEGORIES[category]) {
     return category;
   }
 
-  // Fallback to downloads-resources for uncategorized
-  console.warn(`Document "${doc.title}" has invalid category "${category}", using fallback`);
-  return 'downloads-resources';
+  // Fallback to resources for uncategorized
+  console.warn(`Document "${doc.title}" has invalid category "${category}", using fallback to resources`);
+  return 'resources';
 }
 
 // Group documents by category

scripts/move-guides-to-resources.js

@@ -0,0 +1,75 @@
+const { MongoClient } = require('mongodb');
+
+const MONGO_URI = 'mongodb://localhost:27017';
+const DB_NAME = 'tractatus_dev';
+
+async function moveGuidesToResources() {
+  const client = new MongoClient(MONGO_URI);
+
+  try {
+    await client.connect();
+    console.log('✓ Connected to MongoDB');
+
+    const db = client.db(DB_NAME);
+    const collection = db.collection('documents');
+
+    // Find implementation guides currently in getting-started
+    const guides = await collection.find({
+      category: 'getting-started',
+      $or: [
+        { slug: { $regex: /implementation-guide/ } },
+        { title: { $regex: /Implementation Guide/i } }
+      ]
+    }).toArray();
+
+    console.log(`\nFound ${guides.length} implementation guide(s):`);
+    guides.forEach(doc => {
+      console.log(`  - ${doc.title} (${doc.slug})`);
+    });
+
+    if (guides.length === 0) {
+      console.log('\n⚠ No guides to move (already in resources?)');
+      return;
+    }
+
+    // Update all implementation guides to resources category
+    const result = await collection.updateMany(
+      {
+        category: 'getting-started',
+        $or: [
+          { slug: { $regex: /implementation-guide/ } },
+          { title: { $regex: /Implementation Guide/i } }
+        ]
+      },
+      {
+        $set: { category: 'resources' }
+      }
+    );
+
+    console.log(`\n✅ Updated ${result.modifiedCount} document(s)`);
+    console.log('   Category changed: getting-started → resources');
+
+    // Verify the change
+    const verifyGuides = await collection.find({
+      category: 'resources',
+      $or: [
+        { slug: { $regex: /implementation-guide/ } },
+        { title: { $regex: /Implementation Guide/i } }
+      ]
+    }).toArray();
+
+    console.log(`\n✓ Verification: ${verifyGuides.length} guide(s) now in Resources:`);
+    verifyGuides.forEach(doc => {
+      console.log(`  - ${doc.title}`);
+    });
+
+  } catch (error) {
+    console.error('❌ Error:', error.message);
+    process.exit(1);
+  } finally {
+    await client.close();
+    console.log('\n✓ Database connection closed');
+  }
+}
+
+moveGuidesToResources();