Add copy button to claim cards with full attribution

Each claim card now includes a copy button that copies all 5 claims plus proper attribution to the clipboard in a citation-ready format.

Features:
- Copy button with icon (Copy → Check on success)
- Copies all 5 numbered claims
- Includes full attribution footer:
  - Source title
  - Author: Kamil Banc, AI Adopters Club
  - URL to claim page
  - Original article URL
  - CC BY 4.0 license
- Visual feedback: "Copied!" confirmation for 2 seconds
- Lightweight: Uses native Clipboard API, no dependencies

Documentation updates:
- Added "Current System Architecture" section to WORKFLOW.md
- Documented homepage structure (unified header, wide containers)
- Documented claims library features (5-column grid, copy button)
- Listed all strict build requirements (12-18 tokens, etc.)
- Included copy format template for reference

This ensures:
✓ Easy claim sharing with proper attribution
✓ Compliance with CC BY 4.0 license requirements
✓ All future claims follow current system setup
✓ Consistent citation format across all uses

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

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

WORKFLOW.md

@@ -14,6 +14,55 @@ This document outlines the complete, step-by-step process for creating new claim
 
 ---
 
+## Current System Architecture (2025-11-09)
+
+### Homepage Structure
+- **Unified Header:** Photo + name/title flows horizontally with bio content on desktop, stacks vertically on mobile
+- **Container Width:** `max-w-[1920px]` with responsive padding (`px-6 md:px-8 lg:px-12`)
+- **Claims Library:** Full interactive library with search, topic filters, and 5-column responsive grid
+- **No separate Bio section:** All consolidated into Header component
+
+### Claims Library Features
+- **Responsive Grid:** 1 → 2 → 3 → 4 → 5 columns as screen width increases
+- **Card Structure (per article):**
+  - Topic tags
+  - Article title (linked to detail page)
+  - Featured claim (single-sentence italic context)
+  - All 5 atomic claims (bulleted list, 12-18 tokens each)
+  - Publication date
+  - "View Claims →" link
+  - **Copy button:** Copies all 5 claims + full attribution to clipboard
+- **Copy Format:**
+  ```
+  [Article Title]
+
+  1. [Claim 1]
+
+  2. [Claim 2]
+
+  3. [Claim 3]
+
+  4. [Claim 4]
+
+  5. [Claim 5]
+
+  ---
+  Source: [Article Title]
+  Author: Kamil Banc, AI Adopters Club
+  URL: https://kbanc.com/claims-library/[slug]
+  Original Article: [originalUrl]
+  License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
+  ```
+
+### Strict Requirements (Build Blockers)
+1. **Token Length:** Every claim MUST be 12-18 tokens (validation enforced, build fails otherwise)
+2. **Claim Count:** Exactly 5 claims per article
+3. **Featured Claim:** Required single-sentence summary for card display
+4. **Date Format:** YYYY-MM-DD
+5. **URL Format:** Must start with `https://aiadopters.club/p/`
+
+---
+
 ## Step 1: Select Source Article
 
 ### 1.1 Identify Article

src/components/ClaimsLibrary.tsx

@@ -1,13 +1,14 @@
 "use client";
 
 import Link from "next/link";
-import { Search } from "lucide-react";
+import { Search, Copy, Check } from "lucide-react";
 import { useState, useMemo } from "react";
 import { ALL_CLAIMS_DATA, getTotalClaimsCount } from "@/data/claims";
 
 const ClaimsLibrary = () => {
   const [selectedTopic, setSelectedTopic] = useState<string>("all");
   const [searchQuery, setSearchQuery] = useState("");
+  const [copiedSlug, setCopiedSlug] = useState<string | null>(null);
 
   // Automatically populated from centralized claims data
   const articles = ALL_CLAIMS_DATA;
@@ -48,6 +49,27 @@ const ClaimsLibrary = () => {
     { id: "measurement", label: "ROI & Measurement", color: "bg-purple-100 text-purple-800" },
   ];
 
+  const copyClaimsToClipboard = async (article: typeof ALL_CLAIMS_DATA[0]) => {
+    const formattedText = `${article.title}
+
+${article.claims.map((claim, idx) => `${idx + 1}. ${claim}`).join('\n\n')}
+
+---
+Source: ${article.title}
+Author: Kamil Banc, AI Adopters Club
+URL: https://kbanc.com/claims-library/${article.slug}
+Original Article: ${article.originalUrl}
+License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)`;
+
+    try {
+      await navigator.clipboard.writeText(formattedText);
+      setCopiedSlug(article.slug);
+      setTimeout(() => setCopiedSlug(null), 2000);
+    } catch (err) {
+      console.error('Failed to copy:', err);
+    }
+  };
+
   return (
     <section className="py-10 md:py-12 border-b border-border">
       <div className="container max-w-[1920px] mx-auto px-6 md:px-8 lg:px-12">
@@ -143,20 +165,39 @@ const ClaimsLibrary = () => {
               </ul>
 
               {/* Footer */}
-              <div className="flex items-center justify-between pt-3 border-t border-border">
-                <span className="text-xs text-muted-foreground">
-                  {new Date(article.date).toLocaleDateString('en-US', {
-                    month: 'short',
-                    day: 'numeric',
-                    year: 'numeric'
-                  })}
-                </span>
-                <Link
-                  href={`/claims-library/${article.slug}`}
-                  className="text-sm font-semibold text-accent hover:text-accent/80 transition-colors"
+              <div className="pt-3 border-t border-border">
+                <div className="flex items-center justify-between mb-2">
+                  <span className="text-xs text-muted-foreground">
+                    {new Date(article.date).toLocaleDateString('en-US', {
+                      month: 'short',
+                      day: 'numeric',
+                      year: 'numeric'
+                    })}
+                  </span>
+                  <Link
+                    href={`/claims-library/${article.slug}`}
+                    className="text-sm font-semibold text-accent hover:text-accent/80 transition-colors"
+                  >
+                    View Claims →
+                  </Link>
+                </div>
+                <button
+                  onClick={() => copyClaimsToClipboard(article)}
+                  className="w-full flex items-center justify-center gap-2 py-2 px-3 text-xs font-medium text-muted-foreground hover:text-foreground bg-muted hover:bg-muted/80 rounded transition-colors"
+                  aria-label="Copy all claims to clipboard"
                 >
-                  View Claims →
-                </Link>
+                  {copiedSlug === article.slug ? (
+                    <>
+                      <Check className="h-3 w-3" />
+                      Copied!
+                    </>
+                  ) : (
+                    <>
+                      <Copy className="h-3 w-3" />
+                      Copy All Claims
+                    </>
+                  )}
+                </button>
               </div>
             </article>
           ))}