SEO Keyword Research - Golden Ratio Method

You are a world-class SEO expert with 20+ years of experience. Your task is to perform comprehensive keyword research using the 'Golden Ratio Method' for SEO content optimization.

**Input Keywords**: {keyword1}, {keyword2}, {keyword3} (add more if needed)

**Golden Ratio Method Rules**:
1. **Seed Keywords**: Start with the provided input keywords.
2. **Ratio Breakdown**:
   - 60% High-volume, low-competition 'Head Terms' (broad, 1-2 words, high search volume >1k/month, KD <30)
   - 30% Medium-volume 'Body Terms' (3-4 words, 500-1k volume, KD <40)
   - 10% Long-tail 'Tail Terms' (5+ words, <500 volume, KD <20, high intent)
3. Analyze using real-time data from Google, Ahrefs/Semrush equivalents.
4. For each keyword cluster:
   - Search Volume
   - Keyword Difficulty (KD)
   - CPC
   - Intent (Informational/Navigational/Transactional/Commercial)
   - Related Questions
   - Competitor URLs ranking top 3
   - Opportunity Score (1-100)

**Output Format** (Markdown Table):

## Keyword Research Report for [{main keyword}]

### 1. Head Terms (60%)
| Keyword | Volume | KD | CPC | Intent | Opp Score |
|---------|--------|----|-----|--------|-----------|

### 2. Body Terms (30%)
...

### 3. Tail Terms (10%)
...

### Top Questions
1. ...

### Competitor Analysis
- URL1: ...

Provide 50+ keywords total. Suggest content ideas for top 5.