mirror of
https://github.com/nexu-io/open-design.git
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b603a4ec54
Brands added (each with full 56-token :root + self-contained fixture): - Devtools / data infra: clickhouse, hashicorp, mongodb, mintlify, sentry-adjacent (lovable, superhuman) - AI-app builder / messaging: intercom, lovable, superhuman - Fintech / crypto: coinbase, binance, wise All 10 declare the complete shared schema (26 A1 + 26 A2 + 4 B-slot) with no C-extensions; pnpm guard reports all 6 contract checks passing. Co-authored-by: chaoxiaoche <chaoxiaoche@chaoxiaochedeMacBook-Pro.local> Co-authored-by: Cursor <cursoragent@cursor.com>
257 lines
15 KiB
CSS
257 lines
15 KiB
CSS
/* ─────────────────────────────────────────────────────────────────────────
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* design-systems/coinbase/tokens.css
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*
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* Structured token bindings for "Inspired by Coinbase" — the consumer
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* crypto exchange dressed in singular Coinbase Blue, near-black product
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* surfaces, and the 56px pill CTAs that make the brand instantly
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* recognisable. Mainstream-friendly fintech polish: white canvas,
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* one functional accent, restrained type, generous radii.
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*
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* Agents generating a Coinbase-flavored artifact should paste the
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* `:root { … }` block verbatim into the first `<style>` of the artifact,
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* then reference every value through `var(--name)` — never re-author the
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* brand blue inline.
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*
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* Schema notes (Coinbase binds the shared schema in seven brand-
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* specific ways — see `#Coinbase N` tags inline for each decision):
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*
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* #Coinbase 1 — `--surface` is the cool-gray `#eef0f3` from
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* DESIGN.md §2 — the secondary button background and
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* panel surface. It carries a barely-perceptible blue
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* tint that ties it to Coinbase Blue without competing.
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* `--surface-warm` aliases `var(--surface)` because the
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* brand has no warm tier at all (cool palette only).
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*
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* #Coinbase 2 — Single foreground tier: Near Black (`#0a0b0d`).
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* DESIGN.md §1 calls out the alternating dark / light
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* section model, but text within either section uses
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* one weight. `--fg-2` aliases `--fg` because Coinbase
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* does not differentiate a "subhead" gray. `--muted`
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* is the muted blue-gray `#5b616e` from DESIGN.md §2,
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* used for captions and secondary copy; `--meta`
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* aliases `--muted`.
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*
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* #Coinbase 3 — `--border` is `rgba(91, 97, 110, 0.2)` — the exact
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* 20% Muted Blue value DESIGN.md §2 names. Binding the
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* border to an alpha (not a solid hex) lets the same
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* value paint over white surfaces AND the cool-gray
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* `--surface` without re-tinting per context.
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* `--border-soft` aliases — DESIGN.md describes no
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* separate row-separator weight.
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*
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* #Coinbase 4 — `--accent` is Coinbase Blue (`#0052ff`). Per
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* DESIGN.md §7 Don't list, blue is "functional only,
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* never decorative" — the ≤2-accent-uses-per-screen
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* lint is doubly important on this brand. `--accent-hover`
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* binds to the explicit `#578bfa` (light hover blue
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* from DESIGN.md §4) and `--accent-active` binds to
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* `#0667d0` (the documented Link Blue, repurposed as
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* the deeper pressed state). Coinbase Blue is too
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* saturated for a black-mix formula to produce the
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* same shifts — use the brand's own values.
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*
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* #Coinbase 5 — Type scale tops out at 80px (`--text-4xl`).
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* DESIGN.md §3 puts Display Hero at 80px / weight 400
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* with `line-height: 1.00`. The 64px and 52px display
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* tiers from DESIGN.md slot into `--text-3xl` /
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* intermediate; smaller marketing tiers (Caption 14px,
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* Small 13px) bind to `--text-sm` with the 13px micro-
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* tier inlined per-component where used.
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*
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* #Coinbase 6 — `--leading-tight` is `1.00` — the ultra-tight
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* display rhythm DESIGN.md §1 calls out as a key
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* characteristic. Body reading stays at `1.5`; the
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* 18px body / 1.56 ratio from DESIGN.md §3 is
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* expressible as `--leading-body: 1.5` rounded for
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* the schema's single body lh.
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*
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* #Coinbase 7 — `--focus-ring` is a sharp 2px solid ring at
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* `var(--fg)` — DESIGN.md §4 specifies "Focus: 2px
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* solid black outline" on every interactive element.
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* We reproduce that as a `box-shadow` so the ring sits
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* outside the element without affecting layout. This
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* differs from the schema default (3px alpha glow at
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* --accent) because Coinbase's focus is mechanical,
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* not atmospheric.
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*
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* Brand-specific extensions (Layer C):
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* None. The 56px pill-CTA radius from DESIGN.md §4 is *component-
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* specific* (only primary CTAs use it) and lives inline in
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* components.html rather than as a new token; promoting it would
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* force every other brand to declare a matching slot.
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*
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* Source contracts:
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* - Standard token names: design-systems/_schema/tokens.schema.ts
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* - A2 fallback parity: design-systems/_schema/defaults.css
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* - Lint enforcement: apps/daemon/src/lint-artifact.ts
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* ─────────────────────────────────────────────────────────────────── */
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:root {
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/* ─── Surface (3 levels — #Coinbase 1) ────────────────────────────
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* White canvas, cool-gray panel surface. The `--surface` tint is
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* the same `#eef0f3` Coinbase uses behind secondary buttons — it
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* carries just enough blue cast to feel of-a-piece with the brand
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* accent without competing with it. No warm tier exists; the
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* alias keeps cross-brand components resolvable. */
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--bg: #ffffff;
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--surface: #eef0f3; /* Cool Gray — secondary surface, panels */
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--surface-warm: var(--surface); /* alias — Coinbase has no warm tier */
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/* ─── Foreground ramp (2 tiers — #Coinbase 2) ────────────────────
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* Near Black (`#0a0b0d`) carries every heading and body line —
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* Coinbase's product surfaces invert to this color on dark
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* sections (DESIGN.md §1). Muted Blue (`#5b616e`) is the caption /
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* placeholder tier. No third or fourth tier — both B-slots alias. */
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--fg: #0a0b0d; /* Near Black — text, dark section bg */
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--fg-2: var(--fg); /* alias — single text weight throughout */
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--muted: #5b616e; /* Muted Blue — captions, secondary copy */
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--meta: var(--muted); /* alias — no separate metadata tier */
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/* ─── Border (1 tier — #Coinbase 3) ──────────────────────────────
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* DESIGN.md §2 names the border explicitly: 20% Muted Blue.
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* Binding to an alpha (not a solid hex) lets the same value paint
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* over white AND the cool-gray surface without re-tinting per
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* context. `--border-soft` aliases — Coinbase has one border
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* weight for everything. */
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--border: rgba(91, 97, 110, 0.2); /* Muted Blue @ 20% — DESIGN.md §2 */
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--border-soft: var(--border); /* alias — one border weight */
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/* ─── Accent ──────────────────────────────────────────────────────
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* Coinbase Blue — the singular brand accent. Used for CTA borders,
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* focus accents, link text. Hard cap of ≤2 visible uses per screen
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* (lint enforced) is doubly important here because DESIGN.md §7
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* forbids decorative use: "Don't use the blue decoratively — it's
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* functional only". */
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--accent: #0052ff; /* Coinbase Blue — brand mark */
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--accent-on: #ffffff; /* white label on saturated blue */
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--accent-hover: #578bfa; /* light hover blue — DESIGN.md §4 */
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--accent-active: #0667d0; /* deeper pressed — Link Blue, DESIGN.md §2 */
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/* ─── Semantic ───────────────────────────────────────────────────
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* Standard semantic colors. DESIGN.md does not redefine success /
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* warn / danger; Coinbase's product UI uses them at the schema
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* defaults so the financial-status palette stays distinct from the
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* brand-blue moment. */
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--success: #16a34a;
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--warn: #eab308;
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--danger: #dc2626;
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/* ─── Typography — fonts ─────────────────────────────────────────
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* Coinbase's four-font proprietary family (Display, Sans, Text,
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* Icons) reduces to two stacks here: display headlines use
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* CoinbaseDisplay; everything else uses CoinbaseText / Sans. Both
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* stacks degrade through Inter (the closest open-source match) to
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* system sans so artifacts render legibly without the licensed
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* faces. CoinbaseIcons is an icon font, not a text face, and is
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* not bound to a schema slot. */
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--font-display:
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"CoinbaseDisplay", "Coinbase Display",
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"Inter", ui-sans-serif, system-ui, -apple-system,
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"Segoe UI", Arial, sans-serif;
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--font-body:
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"CoinbaseText", "CoinbaseSans", "Coinbase Sans",
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"Inter", ui-sans-serif, system-ui, -apple-system,
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"Segoe UI", Arial, sans-serif;
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--font-mono:
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ui-monospace, "SF Mono", "JetBrains Mono",
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Menlo, Monaco, Consolas, monospace;
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/* ─── Typography — type scale (#Coinbase 5) ─────────────────────
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* Direct mapping of DESIGN.md §3: 12 / 14 / 16 / 18 / 32 / 36 /
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* 52 / 80. Display Hero hits 80px (the full marketing scale);
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* Section Heading 36px and Card Title 32px sit a step apart for
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* visual gear-shifting. The 13px tag size from DESIGN.md is a
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* one-off micro tier and is inlined per-component. */
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--text-xs: 12px; /* extra small — tags, dense labels */
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--text-sm: 14px; /* caption, small UI */
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--text-base: 16px; /* body small, button, navigation */
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--text-lg: 18px; /* feature title, body reading */
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--text-xl: 32px; /* card title */
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--text-2xl: 36px; /* section heading */
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--text-3xl: 52px; /* display third tier */
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--text-4xl: 80px; /* display hero — full scale */
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/* ─── Typography — leading & tracking (#Coinbase 6) ─────────────
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* `--leading-tight` is 1.00 — DESIGN.md §1 lists "1.00 line-height
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* on display headings — ultra-tight" as a defining characteristic.
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* `--leading-body` is 1.5 (the body reading rhythm). Tracking
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* compresses subtly at display sizes; CoinbaseDisplay is already
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* tightly drawn, so -0.01em is enough — bigger negative tracking
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* would over-collapse the wordmark. */
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--leading-body: 1.5;
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--leading-tight: 1.0; /* ultra-tight — display headings */
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--tracking-display: -0.01em; /* subtle compression at hero scale */
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/* ─── Spacing ────────────────────────────────────────────────────
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* 8px base unit per DESIGN.md §5. The schema's
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* 4/8/12/16/20/24/32/48 ladder covers Coinbase's rhythm; the
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* sub-tier 1/3/5/6/10/15/25 fine-grain values from DESIGN.md are
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* inlined where they appear (chart axes, button micro-padding). */
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--space-1: 4px;
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--space-2: 8px;
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--space-3: 12px;
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--space-4: 16px;
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--space-5: 20px;
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--space-6: 24px;
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--space-8: 32px;
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--space-12: 48px;
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/* ─── Section rhythm ─────────────────────────────────────────────
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* Generous vertical breathing room desktop-side so the 80px
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* display hero has air above and below. Tightens to 64px on
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* tablet, 40px on phone. */
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--section-y-desktop: 96px;
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--section-y-tablet: 64px;
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--section-y-phone: 40px;
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/* ─── Radius ─────────────────────────────────────────────────────
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* DESIGN.md §5 radius scale: 4–8 (small), 12–16 (standard),
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* 24–32 (large), 40 (XL), 56 (pill CTAs), 100000 (full). The
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* schema's four tiers map to: 8 (functional), 16 (cards), 32
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* (feature containers), 9999 (badges / avatars). The 56px pill-
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* CTA radius is component-specific (primary buttons only) and
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* lives inline in components.html rather than as a new token. */
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--radius-sm: 8px; /* inputs, chips, small cards */
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--radius-md: 16px; /* cards, panels */
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--radius-lg: 32px; /* feature containers, hero panels */
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--radius-pill: 9999px; /* badges, avatars, full pill */
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/* ─── Elevation (3 levels) ───────────────────────────────────────
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* DESIGN.md §6: "Minimal shadow system — depth from color contrast
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* between dark/light sections." The cascade is intentionally quiet:
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*
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* --elev-flat no shadow (page surface, text blocks)
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* --elev-ring hairline 1px ring (cards on white)
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* --elev-raised the lightest possible drop — used sparingly on
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* floating panels / dropdowns. Depth on Coinbase
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* comes from the dark / light section contrast,
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* not from elevation per element. */
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--elev-flat: none;
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--elev-ring: 0 0 0 1px var(--border);
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--elev-raised: 0 1px 2px color-mix(in oklab, var(--fg), transparent 92%);
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/* ─── Focus ring (#Coinbase 7) ──────────────────────────────────
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* DESIGN.md §4 specifies "Focus: 2px solid black outline" on
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* every interactive element. We reproduce that as a 2px solid
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* box-shadow at `var(--fg)` so the ring sits outside the element
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* without shifting layout. This is sharper and more mechanical
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* than the schema's atmospheric glow — by design. */
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--focus-ring: 0 0 0 2px var(--fg);
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/* ─── Motion ─────────────────────────────────────────────────────
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* Standard durations + standard easing. Coinbase's surface motion
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* is restrained — buttons transition background on hover but
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* never transform; the brand voice is precision, not bounce. */
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--motion-fast: 150ms;
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--motion-base: 200ms;
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--ease-standard: cubic-bezier(0.2, 0, 0, 1);
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/* ─── Layout ─────────────────────────────────────────────────────
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* 1280px max content width — DESIGN.md §8 breakpoints climb to
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* 1600px, but the body content centers at 1280 with the marketing
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* imagery bleeding wider. Gutters: 24 → 16 → 16. */
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--container-max: 1280px;
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--container-gutter-desktop: 24px;
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--container-gutter-tablet: 16px;
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--container-gutter-phone: 16px;
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}
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