/* ============================================================
   Biome.blue — Color tokens
   Two worlds bound by one gradient:
     · DIGITAL  — the cyan→blue "B" logomark gradient
     · BIOLOGICAL — living greens, EDEN's bio-luminescent green
   Plus a parchment/heritage layer (the watercolor decks) and a
   governance-semantic set drawn from the safety-cascade slides.
   ============================================================ */

:root {
  /* ---- Brand spine: the logomark gradient ---- */
  --bb-cyan:        #19E0D4;   /* turquoise — top of the B */
  --bb-aqua:        #16B4E0;
  --bb-azure:       #1488E6;
  --bb-blue:        #0E6FE8;   /* mid */
  --bb-blue-deep:   #0B53CE;   /* bottom of the B */
  --bb-blue-ink:    #0A3FA8;

  /* The signature gradient (use sparingly — logomark, hero, key CTAs) */
  --bb-gradient:        linear-gradient(155deg, var(--bb-cyan) 0%, var(--bb-azure) 48%, var(--bb-blue-deep) 100%);
  --bb-gradient-soft:   linear-gradient(155deg, #6FF0E8 0%, #5AB8F2 55%, #3D78E0 100%); /* @kind color */
  --bb-gradient-text:   linear-gradient(120deg, var(--bb-cyan), var(--bb-blue));

  /* ---- Ink & neutrals (the hero navy + paper) ---- */
  --bb-navy:        #0E2A47;   /* primary ink — BIOME.BLUE wordmark */
  --bb-navy-2:      #1C3C5C;
  --bb-slate:       #4A627C;   /* secondary text */
  --bb-slate-soft:  #7E93A8;   /* muted / captions */
  --bb-line:        #D5DEE6;   /* hairline borders */
  --bb-mist:        #EDF2F6;   /* cool surface tint */
  --bb-cloud:       #F6F9FB;   /* app background */
  --bb-white:       #FFFFFF;

  /* ---- Biological greens (life / EDEN) ---- */
  --bb-life:        #4FD15E;   /* EDEN bio-luminescent green */
  --bb-life-glow:   #7BEF7C;   /* glow / highlight */
  --bb-forest:      #2E5D3B;   /* deep botanical green */
  --bb-sage:        #7FA98A;   /* watercolor foliage */
  --bb-moss:        #56814C;

  /* ---- EDEN dark surface (the DNA-circuit slide) ---- */
  --bb-eden-bg:     #08130D;   /* near-black green */
  --bb-eden-bg-2:   #0E2118;
  --bb-eden-grid:   #18402C;   /* circuit lines */

  /* ---- Heritage / steampunk (the product's core register) ---- */
  --bb-parchment:   #F4EFE2;   /* aged paper — light surface */
  --bb-parchment-2: #EAE2CC;   /* deeper paper / sunken */
  --bb-parchment-3: #FBF7EC;   /* lightest leaf — raised cards */
  --bb-bronze:      #B5763E;   /* engraved frames, brass */
  --bb-bronze-2:    #C98F4F;   /* lit brass highlight */
  --bb-copper:      #9C5B2E;   /* deep copper */
  --bb-bark:        #2B2417;   /* sepia ink on parchment */
  --bb-bark-2:      #4A3F2E;   /* secondary sepia */
  --bb-bark-3:      #756849;   /* muted sepia */
  --bb-patina:      #3E6B52;   /* aged verdigris green */

  /* dark "midnight greenhouse" surfaces */
  --bb-night:       #12160F;   /* dark app bg */
  --bb-night-2:     #1B2117;   /* dark card */
  --bb-night-3:     #0C0F09;   /* dark sunken */
  --bb-night-line:  #2E3A28;   /* dark hairline */
  --bb-paper-glow:  #ECE6D5;   /* warm parchment text on dark */

  /* ---- Governance semantics (safety cascade) ---- */
  --bb-ok:          #2E9E5B;   /* normal / verified */
  --bb-info:        #1488E6;   /* Colonus / remote level */
  --bb-warning:     #E0A52E;   /* warning threshold */
  --bb-anomaly:     #E07B2E;   /* anomaly */
  --bb-critical:    #C0432B;   /* critical / Genus escalation */

  /* tint pairs (bg / fg) for status chips */
  --bb-ok-tint:        #E2F4EA;
  --bb-info-tint:      #E1F0FC;
  --bb-warning-tint:   #FAF0D9;
  --bb-anomaly-tint:   #FBEBDD;
  --bb-critical-tint:  #F8E2DD;
}

/* Semantic aliases live in tokens/themes.css (light + dark scopes). */