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+# SN100 Arcade — Paper design audit (Fable 5.1, 2026-09-08)
+
+**Marker:** **SN100_ARCADE_PAPER_READY**
+
+Design-only audit trail for the Cortex Subnet 100 marketing site drawn in Paper.
+This file records board ids, tokens, the Overmind measurements the system is
+based on, and the operator locks that were applied. It is not a product spec:
+product truth stays in [`../OVERVIEW.md`](../OVERVIEW.md),
+[`../external-miner/`](../external-miner/) and [`../SITE_API.md`](../SITE_API.md).
+Nothing in the design changes emission, scoring or consensus semantics.
+
+## Paper file
+
+- File: **Cortex 100 Arcade** — `https://app.paper.design/file/01M204NFTFSVRW6QG78AC7EM6B`
+- Pages: `1-0` Page 1 (cover) · `2-0` 01 Design System · `3-0` 02 Components ·
+  `4-0` 03 Website 1440 · `5-0` 04 Responsive · `6-0` 05 Motion & SFX
+
+### Board ids
+
+| Page | Board | Node id |
+|------|-------|---------|
+| Page 1 | 00 · Cover + Read me · SN100_ARCADE_PAPER_READY | `39P-0` |
+| 01 Design System | DS 01 · Tokens + Type · 1440 | `2AR-0` |
+| 01 Design System | DS 02 · Controls, Tables, States, Usage Rules · 1440 | `2DL-0` |
+| 02 Components | Nav · Floating · 1440 (54px) — nav shell `1LW-0` | `1-0` |
+| 02 Components | Nav · Challenges dropdown open · 1440 | `1OJ-0` |
+| 02 Components | Footer · 1440 (320px) — footer `2M-0` | `2L-0` |
+| 03 Website 1440 | 01 · Home · 1440 (hero `4D-0`) | `4C-0` |
+| 03 Website 1440 | 02 · Proof · 1440 (hero `HY-0`) | `HX-0` |
+| 03 Website 1440 | 03 · Bounty · 1440 (hero `RH-0`) | `RG-0` |
+| 03 Website 1440 | 04 · Mine · 1440 (hero `ZW-0`) | `ZV-0` |
+| 03 Website 1440 | 05 · Docs · 1440 | `175-0` |
+| 03 Website 1440 | 06 · Status · 1440 | `1CW-0` |
+| 03 Website 1440 | BG · Scanline Tile 1440×600 (clone source `HA-0`) | `H9-0` |
+| 04 Responsive | 01 · Home · 768 / 390 | `2HS-0` / `2ML-0` |
+| 04 Responsive | 02 · Proof · 768 / 390 | `2QL-0` / `2QM-0` |
+| 04 Responsive | 03 · Bounty · 768 / 390 | `2QN-0` / `2QO-0` |
+| 05 Motion & SFX | Motion + SFX + Fail-closed states · 1440 | `36V-0` |
+
+## Overmind steal notes (measured live, 2026-09-08)
+
+Source: `https://www.overmindlab.ai/`, headless capture at 1440 and 390 plus the
+six operator screenshots in `overmind-audit/`.
+
+| Element | Measured | Cortex remap |
+|---------|----------|--------------|
+| Nav shell | floats 12px from top, 1312 wide (64px inset each side), 54px tall, 4px stepped corners, `#201c19` fill, `#3d3934` frame, no blur | identical geometry, notches drawn as 4px squares; `clip-path` polygon in code |
+| Nav content | pixel-caption links left, logo orb centre, text link + filled copper CTA right | Challenges ▾ · Benchmarks · Docs · Status · orb · Whitepaper · **Start mining** (green `#1F4945`) |
+| Page | `#16120f` page, 1px white scanlines at ~8% every 6px, vignette, pixel starfield | same values; scanlines as one SVG path tile cloned per board |
+| Accent | copper `#ed670f` / `#fa680c` | structural green `#1F4945`, hover `#183936`, lift `#3F958C` (text/LEDs), CRT glow `#00ff80` at 10% only |
+| Type | mondwest display, neueBit body, Pixelify Sans captions, Geist Pixel alt | Handjet 600 display, DotGothic16 body, Pixelify Sans 500 captions, Press Start 2P numerals, JetBrains Mono terminals, Inter for Docs prose only |
+| Components | outlined section tags, dotted framed panels with corner ornaments, two-column ledger tables, cream `#f0ece1` GET STARTED CTA, product-UI screenshots | same language: tags, framed panels, ledgers, HUD strips, CRT bezel terminal; no icon-tile feature grids |
+| SFX | fixed bottom-left SOUND ON toggle, pixel hand cursor on hover | kept; spec on the Motion board |
+
+## Tokens (Paper design tokens, Tailwind v4 names)
+
+Colour: `--color-canvas #16120F`, `--color-panel #201C19`, `--color-raised #2A2521`,
+`--color-hairline #3D3934`, `--color-hairline-strong #57514A`, `--color-ink #F6F5F1`,
+`--color-ink-muted #CECDC9`, `--color-ink-dim #8E8A83`, `--color-white #FFFFFF`,
+`--color-brand #1F4945`, `--color-brand-hover #183936`, `--color-brand-deep #122E2B`,
+`--color-brand-lift #3F958C`, `--color-brand-tint rgba(31,73,69,.24)`,
+`--color-cream #F0ECE1`, `--color-cream-ink #16120F`, `--color-ok #3F958C`,
+`--color-warn #E0A93A`, `--color-danger #E5484D`, `--color-crt-glow rgba(0,255,128,.10)`,
+`--color-scanline rgba(255,255,255,.08)`.
+
+Type: `--font-display Handjet`, `--font-body DotGothic16`, `--font-hud Pixelify Sans`,
+`--font-score Press Start 2P`, `--font-mono JetBrains Mono`, `--font-prose Inter`;
+sizes `--text-hud-xs 10` … `--text-display-2xl 88`; `--tracking-hud 0.06em`,
+`--tracking-display 0`.
+
+Layout: `--container-nav 1312`, `--container-content 1120`, `--container-prose 720`;
+spacing 4/8/12/16/24/32/48/64/96/128; radii all `0` (pixel notches) except
+`--radius-pill 999` for status pills; breakpoints 390 / 768 / 1440.
+
+## Operator locks applied
+
+1. **Navbar** — Challenges (game-menu dropdown with arcade icons: joystick, cabinet,
+   bug, padlock for retired), Benchmarks, Docs, Status, centred orb, Whitepaper,
+   primary CTA **Start mining**. No "Install CTX" button label anywhere; the install
+   one-liner stays in body terminals.
+2. **Hero art** — generated pixel art with a transparent background, one dedicated
+   piece per route, next to the H1: Home cabinet, Proof trophy, Bounty bug in a
+   crosshair, Mine pickaxe and coins. Palette `#1F4945` / `#F0ECE1` / `#F6F5F1`
+   only. Assets: [`assets/`](./assets/) (`sn100-arcade-cabinet.png`,
+   `sn100-arcade-proof-trophy.png`, `sn100-arcade-bounty-bug.png`,
+   `sn100-arcade-mine-pickaxe.png`). Responsive boards mirror the art.
+3. **Emission copy** — every board writes emission as **% of emissions**
+   (Proof 80% of emissions, Bounty 20% of emissions). No raw protocol units or bare
+   split integers as the primary metric on any UI board (Website, Components,
+   Responsive, Design System usage rules).
+
+## Owner canon carried on the boards
+
+- Gateway `https://network.cortex.foundation`; routes `/`, `/proof`, `/bounty`,
+  `/mine`, `/docs`, `/status`.
+- Live challenges: Proof 80% of emissions, Bounty 20% of emissions, nothing else.
+- Interim burn to UID 0 shown on Home (HUD cell, honesty ledger, sample table) and
+  Status (burn banner, emission ledger). No payout, APY or TAO price promises.
+- InferenceOffer is the RLM judge only; miners BYOK Lium; one digest-pinned eval
+  image (`sha256:78b614a1…`).
+- `relearn*`, `design`, `prism` appear only as retired / locked / 404.
+- Sampled 2026-09-08 (label subject to change): Proof `can_score true`, topics
+  `dt-no-ib-v0`, `muon-vs-adamw-10m-v0`; Bounty `can_score false`,
+  `scoring_backend unconfigured`.
+
+## Exports (@2x PNG, written to the operator's Downloads by Paper)
+
+`01 · Home · 1440@2x.png`, `02 · Proof · 1440@2x.png`, `03 · Bounty · 1440@2x.png`,
+`04 · Mine · 1440@2x.png`, `05 · Docs · 1440@2x.png`, `06 · Status · 1440@2x.png`,
+`Hero · Home · arcade cabinet@2x.png`, `Hero · Proof · arcade trophy@2x.png`,
+`Hero · Bounty · arcade bug@2x.png`, `Hero · Mine · arcade pickaxe@2x.png`,
+`Nav · Floating · 1440 (54px)@2x.png`, `Nav · Challenges dropdown open · 1440@2x.png`,
+`DS 01 · Tokens + Type · 1440@2x.png`, `DS 02 · Controls, Tables, States, Usage Rules · 1440@2x.png`,
+`01 · Home · 768@2x.png`, `01 · Home · 390@2x.png`, `02 · Proof · 768@2x.png`,
+`02 · Proof · 390@2x.png`, `03 · Bounty · 768@2x.png`, `03 · Bounty · 390@2x.png`,
+`Motion + SFX + Fail-closed states · 1440@2x.png`.
+
+The file is one coherent dark CRT system; there is no separate light mode board.
+
+## Known gaps
+
+- Mondwest, neueBit and Geist Pixel are not available in Paper; Handjet and
+  DotGothic16 stand in. Swap when licensed faces are provided.
+- Paper does not render `clip-path`; notched corners are drawn with 4px squares.
+- Hero PNGs are referenced by raw GitHub URL from this branch; repoint to the site
+  asset pipeline when the site is built.
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