Lock the wizard
Full anatomy: top bar + stepper + prose-collapsed/techy-expanded section cards + live summary rail (becomes the Review tree) + bottom nav. This is the creation UI spec.
The actual wizard — full page anatomy, with prose-collapsed ⇄ techy-expanded sections
Your rule applied: the human sentence is the COLLAPSED state of every section; expanding it reveals the real technical editor (actual fields, real terms). Below: the complete page for Step 3, then the whole journey as five thumbnails.
Step 3, the full page — top bar · stepper · section cards (one expanded) · live summary rail · bottom nav
✓ Videos✓ GoalAudiencesAdsCheck & launch
Who should see it?
Adults 18+• in Tier-1 countries•, not shown to recent purchasers• shared by all audiences✎ expand ⌄
Broad — everyone in the countries above ✎ expand ⌄
Stories & Reels only — same people, vertical spots only differs from the othersediting… ⌃
Ad set name macro: {{placement}}-{{geo_tier}}
PlacementsAdvantage+ (auto)Manual:StoriesReelsFeedSearch publisher_platforms / positions
Optimization optimization_goal=OFFSITE_CONVERSIONS · promoted_object.pixel_id=185029…
Bid bid_strategy=LOWEST_COST_WITH_MIN_ROAS ·×10000
Attribution attribution_spec
Audience
＋ another audience
Your launch so far
🛒 Web purchases · $150/day ✓
Broad ✓
Lookalike of buyers ✓
Stories & Reels only ← editing
5 videos picked ✓
ads: assigned in step 4
Estimated: $150/day · 3 audiences · up to ~9 ads
Launches paused, for review
Launches paused, for review
The two-layer rule, everywhere: collapsed = the human sentence (with gold • marking template-chosen values). Expanded = the real editor — actual controls, real values, and the exact API term in small mono type (bid_strategy=LOWEST_COST_WITH_MIN_ROAS) so pros always know precisely what they're setting. Collapse re-renders the sentence. The right rail is the launch being built — always visible, every node clickable (jumps to its card), and it becomes the Review tree in step 5.
The whole journey — what each step's page contains
1 · VideosPick from library / promo-machine / upload (async, uploads continue in background). Launch mode: one-audience-per-video or custom.
2 · GoalTwo goal cards → one prose card: budget · shared/own · bid · name. Provider pre-flight runs silently here.
3 · AudiencesShared-settings card + one card per audience (this page). Advanced: credit window, EU paperwork, schedule.
4 · AdsIdentity + tracking cards (collapsed prose) + the video⇄audience assignment grid with format warnings and live ad count.
5 · Check & launchThe rail's tree takes over the page — every line expandable to its techy editor, warnings inline, "skip flagged & launch rest", launch paused.
Same skeleton on every provider — cards appear/disappear per capability (TikTok adds an identity card in step 4; Google's step 2 has no shared/own budget choice; Snap's goal card set is eligibility-filtered).