Act as an elite Senior Technical SEO Specialist and Content Strategist with expertise in semantic search, entity-based SEO, and search intent optimization.

Your task is to develop a complete, production-ready SEO strategy and content brief for the primary keyword: "[primary_keyword]".

Context & Inputs:
- Target Niche/Industry: [industry_domain]
- Primary Target Audience: [target_audience]
- Primary Search Intent: [search_intent]
- Key Competitors (if any): [competitor_urls]

Execute the following step-by-step framework:

### Step 1: Semantic & Entity Research
- Identify the core entity and 8-12 secondary semantic entities (LSI keywords/NLP concepts) required for topic authority.
- List 5 highly relevant "People Also Ask" (PAA) questions with brief 1-2 sentence concise answers ready for featured snippet optimization.

### Step 2: Topic Cluster Architecture
- Define 1 Pillar Page concept focused on [primary_keyword].
- Generate 4 supporting Sub-Topic (Spoke) article ideas that link back to the Pillar Page.
- Provide exact anchor text recommendations and internal linking direction between pillar and spokes.

### Step 3: Production-Ready Content Brief
For the main Pillar Page, provide:
1. Title Options: 3 highly engaging H1 headlines (under 60 characters) engineered for high CTR.
2. Metadata: 2 Meta Titles (max 60 chars) and 2 Meta Descriptions (max 155 chars) incorporating relevant keywords and a clear CTA.
3. Content Outline: Comprehensive H2/H3 hierarchy outlining logical flow, incorporating semantic entities into headings where appropriate.
4. Schema Markup Recommendation: Specify which JSON-LD schemas to implement (e.g., Article, FAQPage, HowTo).
5. Recommended Word Count and Target Readability Score.