/* ── Shared neutrals (shadcn/ui base — slate) ─────────────────────────── */
:root{
  --background:0 0% 100%;/* @kind color */--foreground:222.2 84% 4.9%;/* @kind color */
  --card:0 0% 100%;/* @kind color */--card-foreground:222.2 84% 4.9%;/* @kind color */
  --popover:0 0% 100%;/* @kind color */--popover-foreground:222.2 84% 4.9%;/* @kind color */
  --primary:222.2 47.4% 11.2%;/* @kind color */--primary-foreground:210 40% 98%;/* @kind color */
  --secondary:210 40% 96.1%;/* @kind color */--secondary-foreground:222.2 47.4% 11.2%;/* @kind color */
  --muted:210 40% 96.1%;/* @kind color */--muted-foreground:215.4 16.3% 46.9%;/* @kind color */
  --accent:210 40% 96.1%;/* @kind color */--accent-foreground:222.2 47.4% 11.2%;/* @kind color */
  --destructive:0 84.2% 60.2%;/* @kind color */--destructive-foreground:210 40% 98%;/* @kind color */
  --border:214.3 31.8% 91.4%;/* @kind color */--input:214.3 31.8% 91.4%;/* @kind color */--ring:222.2 84% 4.9%;/* @kind color */
  --radius:0.5rem;/* @kind radius */

  /* ── Nocturne (Hyakutake desktop + studio) ── */
  --nc-void:#080808;--nc-void-1:#0E0E0E;--nc-panel:#131313;--nc-raised:#1C1B1B;--nc-elevated:#2A2A2A;--nc-brighter:#353534;
  --nc-bone:#F2EFE9;--nc-gold:#C8AA76;--nc-gold-on:#271900;--nc-coral:#FF6B6B;--nc-celadon:#A8C5B5;
  --nc-thread-faint:rgba(200,170,118,0.08);--nc-thread:rgba(200,170,118,0.12);
  --nc-thread-strong:rgba(200,170,118,0.2);--nc-thread-hover:rgba(200,170,118,0.4);
  --nc-ink-muted:rgba(242,239,233,0.6);--nc-ink-subtle:rgba(242,239,233,0.35);--nc-ink-faint:rgba(242,239,233,0.2);
  --nc-gold-muted:rgba(200,170,118,0.4);

  /* ── Nostalgia ── */
  --ns-void:#04030a;--ns-void-2:#080808;--ns-black:#000000;
  --ns-purple-50:#faf5ff;--ns-purple-100:#f3e8ff;--ns-purple-200:#e9d5ff;--ns-purple-300:#d8b4fe;
  --ns-purple-400:#c084fc;--ns-purple-500:#a855f7;--ns-purple-600:#9333ea;
  --ns-lavender:#9b87f5;--ns-lavender-deep:#8B5CF6;--ns-lavender-pale:#D6BCFA;
  --ns-cream:#e8dfc8;--ns-cream-dim:rgba(232,223,200,0.42);
  --ns-celadon:#a8c5b5;--ns-gold:#f0c060;
  --ns-warm-50:#fafaf9;--ns-warm-100:#f5f5f4;--ns-warm-400:#a8a29e;--ns-warm-600:#57534e;--ns-warm-800:#3d3733;

  /* ── Rubik ── */
  --rk-void:#04030a;--rk-panel:#09080f;
  --rk-face-amber:#d4920e;--rk-face-slate:#3a6090;--rk-face-bone:#ece6d8;
  --rk-face-charcoal:#484848;--rk-face-crimson:#8a2828;--rk-face-forest:#1e5030;
  --rk-gold:#f0c060;

  /* ── Provenance (night mode default) ── */
  --pv-bg-primary:#0d0d0d;--pv-bg-secondary:#111111;--pv-bg-door:#252525;
  --pv-border-primary:#3d3d3d;--pv-border-faint:#222222;
  --pv-text-primary:#e8e4dc;--pv-text-secondary:#c4c4c4;--pv-text-faint:#787878;
  --pv-crimson:#c4342a;--pv-gold:#c9a84c;
  --pv-void:0 0% 5.1%;/* @kind color */--pv-charcoal:0 0% 10%;/* @kind color */--pv-ash:0 0% 76.9%;/* @kind color */--pv-bone:36 18% 88.2%;/* @kind color */
  --pv-crimson-hsl:0 100% 27.3%;/* @kind color */--pv-blood:0 100% 21%;/* @kind color */--pv-rust:18 73% 40.8%;/* @kind color */--pv-gold-hsl:42 46% 53.9%;/* @kind color */

  /* ── Provenance gallery mode ── */
  --pv-gallery-bg-primary:#1a1508;--pv-gallery-bg-secondary:#221c0a;--pv-gallery-bg-door:#2e2416;
  --pv-gallery-border-primary:#5a4a2e;--pv-gallery-text-primary:#f5f0e8;--pv-gallery-text-secondary:#d4c9a8;
  --pv-gallery-gold:#e8c96a;
}