{
  "$schema": "https://design-tokens.github.io/community-group/format/",
  "$metadata": {
    "version": "1.0.0",
    "updated": "2026-04-23",
    "scope": "STTIL Solutions — master token set (Signal CGM product expression)",
    "accent-family": "tangerine"
  },

  "color": {
    "teal": {
      "50":  { "$value": "#EEF8F8", "$type": "color", "$description": "Background washes, hover states" },
      "100": { "$value": "#CBE9E9", "$type": "color", "$description": "Bordered containers, soft highlights" },
      "200": { "$value": "#97D3D3", "$type": "color", "$description": "Disabled interactive elements" },
      "300": { "$value": "#5BBBBB", "$type": "color", "$description": "Secondary text on dark backgrounds" },
      "400": { "$value": "#2EA3A3", "$type": "color", "$description": "Icon fills, chart secondary series; primary brand in dark mode" },
      "500": { "$value": "#1A8A8A", "$type": "color", "$description": "Primary interactive, links" },
      "600": { "$value": "#147A7A", "$type": "color", "$description": "Brand primary — dominant system color (light mode)" },
      "700": { "$value": "#0F5E5E", "$type": "color", "$description": "Hover state on teal-600; wordmark color on light" },
      "800": { "$value": "#0A4444", "$type": "color", "$description": "Elevated panels in dark mode" },
      "900": { "$value": "#072E2E", "$type": "color", "$description": "Sidebar, card surface in dark mode" },
      "950": { "$value": "#041A1A", "$type": "color", "$description": "Page background in dark mode (AMOLED-deep)" }
    },

    "tangerine": {
      "50":  { "$value": "#FFF4EE", "$type": "color", "$description": "Tangerine wash (use rarely)" },
      "100": { "$value": "#FFE4CC", "$type": "color", "$description": "Call-out block backgrounds; PA Required badge fill (light)" },
      "200": { "$value": "#FFC090", "$type": "color", "$description": "Light tangerine for illustration accents" },
      "300": { "$value": "#FFB070", "$type": "color", "$description": "Warm glow text on dark surfaces — promoted" },
      "400": { "$value": "#F07840", "$type": "color", "$description": "Borders, glows, active states on dark surfaces — promoted" },
      "500": { "$value": "#E06028", "$type": "color", "$description": "Primary accent in light mode" },
      "600": { "$value": "#C04E1C", "$type": "color", "$description": "Hover state on tangerine-500" },
      "700": { "$value": "#903A14", "$type": "color", "$description": "Text on tangerine-100 backgrounds; AA-safe" },
      "800": { "$value": "#6A2A0C", "$type": "color", "$description": "Deep tangerine for rare decorative use" },
      "900": { "$value": "#3E1808", "$type": "color", "$description": "Near-black tangerine" }
    },

    "neutral": {
      "0":   { "$value": "#FFFFFF", "$type": "color", "$description": "Card surfaces, pure white" },
      "50":  { "$value": "#F4F9F9", "$type": "color", "$description": "Page background — light mode" },
      "100": { "$value": "#E5EEEE", "$type": "color", "$description": "Dividers, table row alternates" },
      "200": { "$value": "#C8D8D8", "$type": "color", "$description": "Borders, input outlines" },
      "300": { "$value": "#A3BEBE", "$type": "color", "$description": "Placeholder text, disabled" },
      "400": { "$value": "#7A9E9E", "$type": "color", "$description": "Secondary body text" },
      "500": { "$value": "#5A7E7E", "$type": "color", "$description": "Body text minimum on white" },
      "600": { "$value": "#426060", "$type": "color", "$description": "Strong body text (light surfaces only)" },
      "700": { "$value": "#2E4444", "$type": "color", "$description": "Headings on light" },
      "800": { "$value": "#1C2C2C", "$type": "color", "$description": "Primary text on light" },
      "900": { "$value": "#111A1A", "$type": "color", "$description": "Maximum contrast (light mode only)" }
    },

    "semantic": {
      "success": {
        "100": { "$value": "#C8EDD8", "$type": "color" },
        "500": { "$value": "#1A7A4E", "$type": "color", "$description": "Active coverage, completed actions" },
        "600": { "$value": "#146040", "$type": "color", "$description": "Text on success-100 backgrounds" }
      },
      "warning": {
        "100": { "$value": "#FDECD5", "$type": "color" },
        "400": { "$value": "#D97B35", "$type": "color", "$description": "Expiring soon (30–59 days)" },
        "600": { "$value": "#A85A18", "$type": "color", "$description": "Critical expiry (<30 days); text on warning-100" }
      },
      "error": {
        "100": { "$value": "#F8CCCC", "$type": "color" },
        "500": { "$value": "#C83030", "$type": "color", "$description": "Denied, expired, destructive actions" },
        "600": { "$value": "#A02020", "$type": "color", "$description": "Text on error-100 backgrounds" }
      },
      "info": {
        "100": { "$value": "#C8E0EE", "$type": "color" },
        "500": { "$value": "#1A6A9A", "$type": "color", "$description": "Informational, pending review" }
      },
      "purple": {
        "100": { "$value": "#E2D8F0", "$type": "color" },
        "500": { "$value": "#7A5EA0", "$type": "color", "$description": "PA pending, in-process states" }
      }
    },

    "mode": {
      "dark": {
        "bg-page":       { "$value": "#041A1A", "$type": "color" },
        "bg-card":       { "$value": "#072E2E", "$type": "color" },
        "bg-elevated":   { "$value": "#0A4444", "$type": "color" },
        "text-heading":  { "$value": "#FFFAF6", "$type": "color", "$description": "Warm white — slightly copper-tinted vs pure white" },
        "text-primary":  { "$value": "#F0F4F4", "$type": "color", "$description": "Softened body text — not stark white" },
        "text-secondary":{ "$value": "#5BBBBB", "$type": "color" },
        "text-muted":    { "$value": "#5A8080", "$type": "color", "$description": "Min AA-safe on teal-950; ~4.2:1" },
        "border":        { "$value": "#0F5E5E", "$type": "color" },
        "brand":         { "$value": "#2EA3A3", "$type": "color", "$description": "teal-400 — shifted up from teal-600 for dark contrast" },
        "accent":        { "$value": "#F07840", "$type": "color", "$description": "tangerine-400 — warm glow on dark" },
        "accent-text":   { "$value": "#FFB070", "$type": "color", "$description": "tangerine-300 — gold text on dark" }
      },
      "light": {
        "bg-page":       { "$value": "#F4F9F9", "$type": "color" },
        "bg-card":       { "$value": "#FFFFFF", "$type": "color" },
        "bg-elevated":   { "$value": "#E5EEEE", "$type": "color" },
        "text-heading":  { "$value": "#0A3030", "$type": "color", "$description": "Deep teal-charcoal heading" },
        "text-primary":  { "$value": "#1C2E2E", "$type": "color", "$description": "Deep charcoal — not stark black" },
        "text-secondary":{ "$value": "#5A7E7E", "$type": "color" },
        "text-muted":    { "$value": "#7A9E9E", "$type": "color" },
        "border":        { "$value": "#C8D8D8", "$type": "color" },
        "brand":         { "$value": "#147A7A", "$type": "color" },
        "accent":        { "$value": "#E06028", "$type": "color", "$description": "tangerine-500 — restrained on light" },
        "accent-text":   { "$value": "#E06028", "$type": "color" }
      }
    }
  },

  "typography": {
    "fontFamily": {
      "heading": { "$value": "'Plus Jakarta Sans', sans-serif", "$type": "fontFamily" },
      "body":    { "$value": "'Inter', sans-serif",             "$type": "fontFamily" },
      "mono":    { "$value": "'JetBrains Mono', monospace",    "$type": "fontFamily" }
    },
    "fontSize": {
      "xs":       { "$value": "0.75rem",   "$type": "dimension", "$description": "12px" },
      "sm":       { "$value": "0.875rem",  "$type": "dimension", "$description": "14px" },
      "base":     { "$value": "1rem",      "$type": "dimension", "$description": "16px" },
      "lg":       { "$value": "1.125rem",  "$type": "dimension", "$description": "18px" },
      "xl":       { "$value": "1.25rem",   "$type": "dimension", "$description": "20px" },
      "2xl":      { "$value": "1.5rem",    "$type": "dimension", "$description": "24px" },
      "3xl":      { "$value": "1.875rem",  "$type": "dimension", "$description": "30px" },
      "4xl":      { "$value": "2.25rem",   "$type": "dimension", "$description": "36px" },
      "5xl":      { "$value": "3rem",      "$type": "dimension", "$description": "48px" }
    },
    "fontWeight": {
      "regular": { "$value": 400, "$type": "fontWeight" },
      "medium":  { "$value": 500, "$type": "fontWeight" },
      "semibold":{ "$value": 600, "$type": "fontWeight" },
      "bold":    { "$value": 700, "$type": "fontWeight" }
    },
    "lineHeight": {
      "tight":   { "$value": 1.15, "$type": "number" },
      "snug":    { "$value": 1.25, "$type": "number" },
      "normal":  { "$value": 1.5,  "$type": "number" },
      "relaxed": { "$value": 1.6,  "$type": "number" }
    },
    "letterSpacing": {
      "tight":   { "$value": "-0.02em", "$type": "dimension" },
      "normal":  { "$value": "0em",     "$type": "dimension" },
      "wide":    { "$value": "0.05em",  "$type": "dimension" },
      "wider":   { "$value": "0.08em",  "$type": "dimension" },
      "widest":  { "$value": "0.1em",   "$type": "dimension" }
    }
  },

  "spacing": {
    "0":  { "$value": "0rem",   "$type": "dimension" },
    "1":  { "$value": "0.25rem","$type": "dimension", "$description": "4px" },
    "2":  { "$value": "0.5rem", "$type": "dimension", "$description": "8px" },
    "3":  { "$value": "0.75rem","$type": "dimension", "$description": "12px" },
    "4":  { "$value": "1rem",   "$type": "dimension", "$description": "16px" },
    "5":  { "$value": "1.25rem","$type": "dimension", "$description": "20px" },
    "6":  { "$value": "1.5rem", "$type": "dimension", "$description": "24px" },
    "8":  { "$value": "2rem",   "$type": "dimension", "$description": "32px" },
    "10": { "$value": "2.5rem", "$type": "dimension", "$description": "40px" },
    "12": { "$value": "3rem",   "$type": "dimension", "$description": "48px" },
    "16": { "$value": "4rem",   "$type": "dimension", "$description": "64px" },
    "20": { "$value": "5rem",   "$type": "dimension", "$description": "80px" },
    "24": { "$value": "6rem",   "$type": "dimension", "$description": "96px" }
  },

  "borderRadius": {
    "none": { "$value": "0",       "$type": "dimension" },
    "sm":   { "$value": "0.25rem", "$type": "dimension", "$description": "4px" },
    "md":   { "$value": "0.5rem",  "$type": "dimension", "$description": "8px" },
    "lg":   { "$value": "0.75rem", "$type": "dimension", "$description": "12px" },
    "xl":   { "$value": "1rem",    "$type": "dimension", "$description": "16px" },
    "2xl":  { "$value": "1.5rem",  "$type": "dimension", "$description": "24px" },
    "full": { "$value": "9999px",  "$type": "dimension" }
  },

  "shadow": {
    "sm":  { "$value": "0 1px 3px rgba(7,46,46,0.10)",  "$type": "shadow" },
    "md":  { "$value": "0 2px 10px rgba(4,26,26,0.14)", "$type": "shadow" },
    "lg":  { "$value": "0 4px 20px rgba(4,26,26,0.18)", "$type": "shadow" },
    "xl":  { "$value": "0 8px 32px rgba(4,26,26,0.22)", "$type": "shadow" },
    "tangerine-glow-dark":  { "$value": "0 0 24px rgba(240,120,64,0.30), 0 2px 10px rgba(4,26,26,0.70)", "$type": "shadow", "$description": "Premium card glow — dark mode only. One per view." },
    "tangerine-glow-light": { "$value": "0 0 16px rgba(224,96,40,0.20), 0 2px 8px rgba(0,0,0,0.08)",    "$type": "shadow", "$description": "Premium card glow — light mode." }
  },

  "semantic-ui": {
    "badge": {
      "active":    { "bg": "#C8EDD8", "text": "#146040", "icon": "✓" },
      "expiring":  { "bg": "#FDECD5", "text": "#A85A18", "icon": "⚠" },
      "critical":  { "bg": "#F8CCCC", "text": "#A02020", "icon": "⚠" },
      "pa-required":{ "bg": "#FFE4CC", "text": "#903A14", "icon": "⚡", "border": "rgba(144,58,20,0.2)" },
      "pa-pending": { "bg": "#E2D8F0", "text": "#7A5EA0", "icon": "○" },
      "denied":    { "bg": "#F8CCCC", "text": "#A02020", "icon": "✕" },
      "info":      { "bg": "#C8E0EE", "text": "#1A6A9A", "icon": "ℹ" }
    },
    "sparkle": {
      "priority-row-bg-dark":    { "$value": "rgba(224,104,48,0.09)", "$description": "Highest-priority worklist row — dark mode" },
      "priority-row-bg-light":   { "$value": "rgba(224,96,40,0.05)",  "$description": "Highest-priority worklist row — light mode" },
      "tangerine-border-dark":   { "$value": "1px solid #F07840",     "$description": "Featured card edge on dark surface" },
      "tangerine-shimmer-border":{ "$value": "1px solid rgba(240,120,64,0.35)", "$description": "Subtle shimmer on elevated panels" },
      "active-nav-tangerine":    { "$value": "3px solid #F07840",     "$description": "Active sidebar nav left border" },
      "warm-white":              { "$value": "#FFFAF6",               "$description": "Heading text on dark teal — slightly warm vs pure white" }
    }
  }
}