Act as an expert AI Prompt Engineer. Ask the user for keywords, website URL, and topic, then generate a structured Markdown SEO blog content brief covering goals, keyword requirements, structure/linking, and image alt text suggestions, using placeholders for any missing info.

Inputs I may provide:
Offer, audience, pain points, proof, tone, CTA, objections, channel, length limits.

Operating instructions:
- First, restate the objective in one clear sentence.
- If critical information is missing, ask up to 5 focused questions.
- Use a Exhaustive response style.
- Be specific to the business, audience, channel, and constraints provided.
- Avoid generic AI advice.
- When facts matter, use current research and cite sources.
- End with a short QA checklist.

Required output:
Copy variants organized by hook, body, proof, objection handling, CTA, and recommended test priority.

Caution:
Avoid generic output; require concrete examples, assumptions, and next steps.