/* ============================================================
   Cowork UI Kit — DEFAULT BRAND preset (FALLBACK only)
   ------------------------------------------------------------
   Role: "unbranded fallback" — used by archetype starter pages
   (pages/page-A..F, starter/archetypes/*) that ship WITHOUT a
   committed brand. Coral warm, a11y-tuned (L=48% so white-on-fill
   passes WCAG AA 4.73:1).

   ⚠️  PRODUCTION code should NOT link this file. Use the canonical
       per-brand preset:
           <link rel="stylesheet" href="brands/<slug>.brand.css">
       (annhien | khi | betterbuy | xanh | a-kryphan | haogood | ai-tools)

   Canonical brand registry: ADR-004 (DESIGN-DECISIONS.md).
   Disambiguation model:     ADR-011 (DESIGN-DECISIONS.md).

   v0.5.1 — 2026-05-20 (Iter 15 T — F3 blocker resolved)
   ============================================================ */

:root {
  /* PRIMARY — brand "main" color (button fill, link, accent)
     v0.4.2 (2026-05-20): L darkened 60→48% so white text on coral fill passes WCAG AA
     (was 3.21:1 → now 4.73:1). Affects landing pages using brand-default (page-C-landing,
     templates/, starter/, _previews/, atoms/molecules/organisms/index). Coral hue & saturation
     preserved — visual: slightly deeper coral, still warm friendly. */
  --brand-primary-h: 12;    /* 0-360 — coral */
  --brand-primary-s: 50%;
  --brand-primary-l: 48%;

  /* ACCENT — secondary, used sparingly */
  --brand-accent-h: 95;     /* sage */
  --brand-accent-s: 18%;
  --brand-accent-l: 39%;

  /* HIGHLIGHT — warm touches (amber, gold) */
  --brand-highlight-h: 38;
  --brand-highlight-s: 50%;
  --brand-highlight-l: 65%;
}

/* ============================================================
   BRAND PRESET REFERENCE — copy this comment khi tạo brand mới
   ============================================================
   Brand presets em đề xuất (anh confirm hue trước khi build):

   An Nhien (nâu trầm hương)     primary-h: 28, s: 40%, l: 38%
   KHI Wellness (sage chữa lành)  primary-h: 140, s: 25%, l: 38%
   BetterBuy (coral DTC)          primary-h: 12, s: 50%, l: 60% (= default)
   Xanh Marketing (xanh lá)       primary-h: 142, s: 45%, l: 45%
   A-Kryphan (charcoal calm)      primary-h: 220, s: 15%, l: 30%
   HaoGood NZL (deep navy)        primary-h: 220, s: 55%, l: 35%
   AI Tools (violet tech)         primary-h: 252, s: 85%, l: 60%

   Mỗi brand chỉ cần override 3-9 dòng — toàn bộ palette tự shift.
   ============================================================ */