# lib-theme-vermilion

**Poster chrome.** A bold, identity-forward Crema theme: one hot vermilion
red-orange is the brand, and it is carried by the *chrome* — the primary
action, hero panels, the entire sidebar, selection — in big committed slabs,
editorial-poster style. Roughly 30–40% of a typical screen is drenched
vermilion, while the content well stays warm paper with near-black warm ink,
so the color reads as identity, not noise. Massive condensed display type
(Anton) is the other half of the voice: the vermilion and the type do the
pointing together, and everything else stays quiet ink-on-paper.

Key decisions:

- `--primary` is the poster vermilion `oklch(0.55 0.21 30)` — deepened from
  the nominal 0.60 so near-white ink clears the 4.5:1 floor with margin.
- `--sidebar` is fully drenched vermilion (near-white foreground, white-alpha
  hairline borders); the active item is a paper chip punched out of the slab.
- `--destructive` is deliberately not a sibling of the brand: deeper crimson
  (`oklch(0.48 0.19 15)`, light label) vs the brighter orange-leaning primary,
  so a destructive button and a primary button never look related.
- Dark mode is the poster at night: near-black warm charcoal
  (`oklch(0.18 0.01 40)`), cards stepping ≥0.05 lighter, and the vermilion
  glowing slightly brighter (`oklch(0.64 0.2 33)`) with dark ink on top. The
  chrome stays vermilion — the sidebar does not go grey at night.
- Radius `0.5rem` (poster edges), snappy motion (120/240/360/500ms, springs
  aliased), low warm-black shadows.

## Fonts

Consuming apps load the fonts via a Google Fonts `@import` at the very top of
their entry CSS (never inside `theme.css` — see the token contract):

```css
@import url("https://fonts.googleapis.com/css2?family=Anton&family=Archivo:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");
```

Notes:

- **Anton** (headings) ships in a single weight, 400 — it is already
  black-condensed, so the theme keeps heading `font-weight: 400`, opens
  tracking a hair (`letter-spacing: 0.01em`; condensed faces need air), and
  does **not** force uppercase — the face carries the register on its own.
  Big sizes stay narrow: the ramp tops out at a 4rem hero.
- **Archivo** (body) at 400/500/600/700 — a grotesque with enough width
  contrast against Anton to keep reading text calm.
- **JetBrains Mono** (code) at 400/500/600.

## Validation

```bash
node create-crema-app/scripts/validate-theme.mjs lib-theme-vermilion/theme.css
```

Passes the Crema v1 token contract: full Tier-1 token set in both modes,
status quartet with ≥4.5:1 label pairs, contrast floors in light and dark,
chart hues ≥60° apart, inert glass stubs, springs aliased (never absent).