/* ============================================================
   Bruce Pai personal theme —「癸水墨金」(Ink & Gold)
   Origin: derived from his bazi (癸水日主,喜金水):
   ink-blue = deep water, gold = metal that feeds it.
   Canonical source of truth for Bruce's PERSONAL brand colors
   (distinct from product palettes like aitaiwan's titanium aurora).
   First applied: bruce.iruna.io (2026-07-10).
   ============================================================ */
:root {
  /* surfaces */
  --bruce-bg:        #F7F5F0;              /* warm paper */
  --bruce-bg-soft:   #EFECE4;
  --bruce-card:      #FFFFFF;
  --bruce-line:      rgba(22,35,58,.14);

  /* text */
  --bruce-ink:       #16233A;              /* 墨藍 — deep water ink (primary text/figures) */
  --bruce-ink-soft:  #5B6B85;
  --bruce-ink-muted: #9AA6B8;

  /* accents */
  --bruce-water:     #2C5F8A;              /* 靛青 — primary accent (actions, links, brand) */
  --bruce-water-deep:#24506F;              /* hover / emphasis */
  --bruce-gold:      #B08A3E;              /* 金 — secondary accent (highlights, numerals) */

  /* neutrals for illustration (sheep/husky etc.) */
  --bruce-wool:      #FFFFFF;
  --bruce-slate:     #6B7686;
  --bruce-slate-deep:#4A5568;

  /* type */
  --bruce-serif: 'Noto Serif TC', serif;   /* display / statements */
  --bruce-sans:  'Noto Sans TC', -apple-system, sans-serif;
  --bruce-mono:  'JetBrains Mono', monospace;
}
/* Dark-mode counterpart「夜墨」(night ink) — ratified by Bruce 2026-10-10 (news.iruna.io redesign, D2).
   Same hue family. Opt-in tokens: pages that want dark mode map them onto their own
   variables inside @media (prefers-color-scheme: dark); nothing here switches existing pages. */
:root {
  --bruce-night-bg:        #0F1826;
  --bruce-night-bg-soft:   #152034;
  --bruce-night-card:      #1A2840;
  --bruce-night-line:      rgba(237,234,226,.14);
  --bruce-night-ink:       #EDEAE2;
  --bruce-night-ink-soft:  #AEB8C8;
  --bruce-night-ink-muted: #7D8AA0;
  --bruce-night-water:     #7FB0DC;
  --bruce-night-water-deep:#9CC3E6;
  --bruce-night-gold:      #D4B06A;
}
/* Usage rules: water = primary accent (links, actions); gold = highlights and numerals only,
   never a large surface; serif for display/statements only, body in sans. */