# Slide 08 — Experiment C: Referral Credits

## Slide Image Prompt

Create a professional executive board pre-read slide at 1920×1080px. Minimal corporate style.

**Background**: White (#FFFFFF). 80px safe-zone margin.

**Layout**:
- Top: slide title "Experiment C — Referral Credits: Ship with Cap" — Inter Bold, 48px, #0F172A, left-aligned. 2px rule in #E5E7EB below.
- Body: two columns with a 1px vertical divider in #E5E7EB.

**Left column (~40% width) — Big KPI Numbers**:
Three large KPI blocks stacked vertically, each with a big number and a label:
- Block 1: "+47%" in Inter Black, 88px, #059669; label below: "Referral Volume Growth" in Inter Regular, 22px, #6B7280; sub-label: "(vs. 30% target)" in Inter Regular, 18px, #6B7280 italic
- Block 2: "$31" in Inter Black, 88px, #059669; label below: "Cost per Activated Referral" in Inter Regular, 22px, #6B7280; sub-label: "(vs. $118 blended CAC)" in Inter Regular, 18px, #6B7280 italic
- Block 3: "1.8×" in Inter Black, 88px, #2563EB; label below: "Estimated LTV vs. Organic" in Inter Regular, 22px, #6B7280
- 24px gap between blocks. Numbers are the visual hero.

**Right column (~60% width) — Supporting Detail**:
- Sub-header: "Results (n = 12,200)" — Inter SemiBold, 22px, #6B7280
- Bullet points in Inter Regular, 22px, #1A1A1A, 12px gap each:
  - "Referral volume: +47% (exceeded 30% target)"
  - "Referred user activation: 72% vs. 59% baseline  (+13pp)"
  - "Blended CAC comparison: $31 vs. $118"
- Divider line, then:
- Decision block: background #EFF6FF, 4px left border #2563EB, padding 16px:
  - "Decision: Ship to 100%" — Inter SemiBold, 22px, #0F172A
  - "$50K/month credit cap while monitoring unit economics" — Inter Regular, 20px, #1A1A1A

**Bottom insight strip** (full width): #F3F4F6 background, text: "74% lower acquisition cost via referral vs. blended CAC  ·  Referred users show 1.8× LTV vs. organic" — Inter Regular, 20px, #1A1A1A.

**Style constraints**: Big numbers on the left make the impact immediate for executives. Detail on the right for those who need it.