Design a focused report-writing block from blank page to draft

You have a long report to write and a blank page that keeps winning. This designs the whole session: a short warm-up that lowers the activation energy so you actually start, a writing block that holds momentum, and a close that leaves you a draft. Give it the topic, scope, time you have and the thing that usually stalls you, and you get a plan from blank page to draft.

I need to design a deep work session for drafting a long report or document.

Report topic: {REPORT_TOPIC}
Expected length / sections: {REPORT_SCOPE}
Session length available: {SESSION_LENGTH}
Current progress: {CURRENT_PROGRESS}
Biggest writing obstacle: {WRITING_OBSTACLE}

Design the full session architecture:
- A 5-10 minute warm-up that lowers the activation energy to start writing (not re-reading old notes for an hour)
- Main writing sprints with suggested word-count or section targets per sprint
- Where to place breaks and how to use them so momentum is preserved
- A rule for this session that prevents scope creep or perfectionism from stalling output
- A shutdown ritual: what to write down before closing so the next session starts fast

Make the plan specific to this report, not a generic Pomodoro template.