Case Study Executive Summary Writer

Write an executive summary for a case study about {{customer_name}}.

Industry: {{customer_industry}}
Challenge: {{main_challenge}}
Solution implemented: {{solution}}
Key results: {{results_metrics}}
Timeline: {{implementation_timeline}}

Format the summary to include:
- Customer snapshot (company size, industry)
- Challenge overview (2-3 sentences)
- Solution highlights
- Quantified results (bullets)
- Customer quote placeholder
- Key takeaway