# Design decision 001 — Main window layout

**Decision (2026-07-11): Layout B, library-centric.**

Owner choice from docs/design/wireframes.html.

## Shape
- Main window = clip table (sortable, dense, 44px rows), project tree left
  (days / cameras / jobs), inspector right (selection metadata + grade snapshot + actions).
- Live grading = inspector mode when a camera slot is selected, plus a summonable
  grade drawer (preview + node strip — Layout A distilled) for panel/trackball work.
  Keyboard: ⌘G toggles drawer; slot switching stays single-keystroke.
- Jobs (offload/verify/proxy) surface in the tree with inline progress — matches
  Silverstack's workstation posture and our offload/proxy engines.

## Consequences for macOS phase
- NavigationSplitView: sidebar (tree) / content (table) / inspector — B maps 1:1
  to native three-column. Grade drawer = bottom sheet over content column.
- Table virtualization + SF Mono numerics from day one.
- Panel focus model: active slot follows either table selection (camera row) or
  explicit slot keys — must never steal focus during rec.

## Skin (unchanged)
Reel tokens: bg-0 chrome, amber accent as tally, #FF3B30 reserved for REC,
SF Mono for TC/CDL/clip names, hairline dividers, 10.5px uppercase eyebrows.