Perfect! The December 2025 MBR deck has been assembled successfully.

**Output:** `output/IS_MBR_2025-12.pptx`

The deck contains 6 slides with 53 figures, all sourced directly from the scorecard and narrative JSON files:
1. Title slide: December 2025 Monthly Business Review
2. Headline: 3 bullets on the month's key drivers
3. P&L vs budget: Revenue, Gross profit, Gross margin, Operating expenses, Operating income
4. KPI scorecard: All 8 KPIs with actual, target, and status
5. Drivers: 3 line item variances from the P&L
6. Watch list: 4 KPIs off target, with actuals and streaks

The house brand (InterStationary) formatting, fonts, colors, and file naming have been applied per company standards.