Extract authenticated coulomb.social design language via designlang

Session probe lands on /vw_pages (Research). Use main designlang extract
with --cookie-file — pack ignores auth. 39 artifacts under
docs/design-extract; tolerate designlang late summary crash when cores exist.

docs/design-extract/coulomb-social-DESIGN.md

@@ -0,0 +1,109 @@
+---
+site: "Research | Coulomb"
+url: "https://coulomb.social"
+generated_at: "2026-08-08T23:30:22.030Z"
+generator: "designlang@12.21.0"
+intent: landing
+material: flat
+tokens:
+  colors:
+    primary: "#d08728"
+    background: "#ffffff"
+    foreground: "#000000"
+  typography:
+    sans: Helvetica
+  spacing:
+    base: 4
+    scale: "[1, 24, 32, 40, 60, 80, 96, 320]"
+  radii:
+    sm: 4
+    md: 8
+    lg: 15
+    xl: 20
+  shadows:
+    sm: "rgb(170, 170, 170) 2px 2px 4px 0px"
+    md: "rgba(23, 23, 23, 0.1) 2px 2px 8px 2px"
+---
+
+# Overview
+
+A **landing** page (heuristic confidence 0.45), dressed in **flat** material.
+
+> "Research | Coulomb"
+
+The author writes in a **neutral** voice; headings tend to be **unknown** case and **tight**.
+
+Reading order detected on the source: `—`.
+
+Source: <https://coulomb.social>.
+
+# Colors
+
+| role | hex | usage |
+|---|---|---|
+| primary | `#d08728` | 8 |
+| background | `#ffffff` | — |
+| foreground | `#000000` | — |
+
+**Neutrals:** `#000000` · `#efefef` · `#616161` · `#373737` · `#171717`
+
+**Total unique colors detected:** 8.
+
+# Typography
+
+**Families**
+- `Helvetica` · 1739 uses
+- `Arial` · 761 uses
+- `Times New Roman` · 450 uses
+- `Inter` · 397 uses
+
+# Layout
+
+**Spacing base:** `4px` increments.
+**Scale:** `1px` · `24px` · `32px` · `40px` · `60px` · `80px` · `96px` · `320px`
+
+**Layout primitives:** 123 grid containers · 1256 flex containers.
+
+# Elevation and Depth
+
+**Shadow scale**
+- `sm` — `rgb(170, 170, 170) 2px 2px 4px 0px`
+- `md` — `rgba(23, 23, 23, 0.1) 2px 2px 8px 2px`
+
+**Z-index layers:** 35
+
+# Shapes
+
+**Radius scale**
+- `sm` — `4px`
+- `md` — `8px`
+- `lg` — `12px`
+- `lg` — `15px`
+- `xl` — `20px`
+
+# Components
+
+**Detected patterns:** `buttons` · `cards` · `inputs` · `links` · `modals`
+
+**Anatomy**
+| kind | variants | sizes | instances |
+|---|---|---|---|
+| button | — | — | 56 |
+
+# Do's and Don'ts
+
+**Do's**
+- Use `content`, `favorite`, `format` as the primary verbs in CTAs — these dominate the source.
+- Write headings in **unknown** case, **tight** length.
+- Address the reader with the pronoun posture **third-person**.
+- Stay inside the **flat** material — match shadow and radius habits.
+
+**Don'ts**
+- Don't 4 font families — consider limiting to 2 (heading + body).
+- Don't 140 !important rules — prefer specificity over overrides.
+- Don't 81% of css is unused — consider purging.
+- Don't 6545 duplicate css declarations.
+
+---
+_Generated by [designlang](https://github.com/Manavarya09/design-extract) v12.21.0 from <https://coulomb.social>._
+_Compatible with the DESIGN.md convention pioneered by [design-extractor.com](https://www.design-extractor.com) — extended with intent, material, voice, anatomy, and library detection._