Draft a campaign brief for the following launch:

**Product/Feature:** [What you're launching and why it matters]
**Target audience:** [Primary and secondary segments]
**Key message:** [The one thing the audience should remember]
**Competitive context:** [What alternatives exist and why ours is different]
**Channels:** [Where this campaign will run]
**Timeline:** [Key dates — launch, pre-launch, post-launch]
**Budget range:** [Total campaign budget]
**Success metrics:** [How you'll know this worked]

Structure the brief with: Executive Summary, Audience Deep-Dive, Messaging Framework (primary message, supporting proof points, objection responses), Channel Strategy (what goes where and why), Creative Direction (mood, references, constraints), Timeline, and Measurement Plan.

Write this so an agency or freelancer could execute without a follow-up meeting. Every section should answer "what" and "why" — not leave decisions to the reader.