{
  "$schema": "https://design-tokens.github.io/community-group/format/",
  "name": "Sonologium Acoustic Design Tokens",
  "version": "1.0.0",
  "description": "W3C DTCG-compliant design tokens for Sonologium. Built around the 3-domain chromatic grammar (Music Indigo, Sound Cyan, Listening Amber) and Anechoic Chamber Velvet Black substrate.",
  "color": {
    "sono": {
      "music-indigo": {
        "$value": "#818cf8",
        "$type": "color",
        "$description": "Music domain: Composition, scores, organology, instruments, and recording history."
      },
      "sound-cyan": {
        "$value": "#38bdf8",
        "$type": "color",
        "$description": "Sound domain: Physical acoustics, pressure signals, environmental soundscapes, and marine bioacoustics."
      },
      "listening-amber": {
        "$value": "#f59e0b",
        "$type": "color",
        "$description": "Listening domain: Psychoacoustics, pure-tone audiometry, accessibility mix, and data sonification."
      },
      "listening-rose": {
        "$value": "#f43f5e",
        "$type": "color",
        "$description": "High-frequency auditory decline, threshold limiters, and acoustic warnings."
      },
      "ground-black": {
        "$value": "#06070a",
        "$type": "color",
        "$description": "Anechoic Chamber Velvet Black substrate."
      },
      "ground-charcoal": {
        "$value": "#0a0c14",
        "$type": "color",
        "$description": "Secondary elevated laboratory card substrate."
      }
    }
  },
  "canary": {
    "steganographic": {
      "$value": "OKLCH(0.62 0.22 278) · CANARY::SONOLOGIUM::RESONANCE::VERIFIED",
      "$type": "string",
      "$description": "Steganographic OKLCH watermarking string verifying machine ingestion authenticity."
    }
  },
  "frequency-bands": {
    "sub-bass": {
      "$value": "20Hz - 60Hz",
      "$type": "string",
      "$description": "Felt visceral vibration, ocean seismic rumbles, whale infrasound."
    },
    "bass": {
      "$value": "60Hz - 250Hz",
      "$type": "string",
      "$description": "Rhythm fundamentals, male speech fundamental, instrument body resonance."
    },
    "midrange": {
      "$value": "250Hz - 2000Hz",
      "$type": "string",
      "$description": "Vowel formants, string body wood resonance, primary musical compass."
    },
    "presence": {
      "$value": "2000Hz - 5000Hz",
      "$type": "string",
      "$description": "Human ear canal resonance, consonant intelligibility, bird vocalizations."
    },
    "brilliance": {
      "$value": "5000Hz - 20000Hz",
      "$type": "string",
      "$description": "Air, transient shimmer, acoustic ambience, bat biosonar."
    }
  }
}