{
  "schemaVersion": "1.0.0",
  "revision": 1,
  "cityId": "deep-tide",
  "name": "Deep Tide / illuminated pressure glass",
  "source": {
    "briefPath": "../../city.md",
    "sha256": "7e68134a6565f7e3d45bd6dbce508eea048c53844fe2b4e2f40b53d4f57a31a0"
  },
  "rationale": "Deep blue-green panels evoke thick pressure glass seen against abyssal water. Barnacle-white text sits within rounded double rims that recall grown shell and bronze glazing collars. Clear, softly rounded sans-serif lettering keeps communal controls welcoming; monospace numbers borrow the legibility of maintenance gauges. Cyan identifies action, cultivated green identifies selection, and phosphorescent yellow is reserved for warnings and keyboard focus. Spacious rows and stable left alignment make the interface calm rather than theatrical. Feedback uses persistent labels, selection marks and focus outlines alongside color; disabled controls keep their labels and subdued contrast. No pulsing text or simulated sunlight is needed.",
  "fonts": [
    {
      "id": "habitat",
      "family": "Avenir Next",
      "fallback": "sans-serif",
      "kind": "system",
      "assetPath": null,
      "licensePath": null,
      "axes": {}
    },
    {
      "id": "instrument",
      "family": "Menlo",
      "fallback": "monospace",
      "kind": "system",
      "assetPath": null,
      "licensePath": null,
      "axes": {}
    }
  ],
  "typography": {
    "display": {
      "font": "habitat",
      "sizePx": 34,
      "lineHeight": 1.15,
      "weight": 600,
      "trackingPx": -0.7,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    },
    "heading": {
      "font": "habitat",
      "sizePx": 19,
      "lineHeight": 1.3,
      "weight": 600,
      "trackingPx": 0,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    },
    "body": {
      "font": "habitat",
      "sizePx": 15,
      "lineHeight": 1.55,
      "weight": 400,
      "trackingPx": 0,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    },
    "label": {
      "font": "habitat",
      "sizePx": 13,
      "lineHeight": 1.4,
      "weight": 600,
      "trackingPx": 0.4,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    },
    "small": {
      "font": "habitat",
      "sizePx": 12,
      "lineHeight": 1.5,
      "weight": 500,
      "trackingPx": 0.1,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    },
    "numeric": {
      "font": "instrument",
      "sizePx": 16,
      "lineHeight": 1.35,
      "weight": 500,
      "trackingPx": 0,
      "case": "none",
      "opticalSizing": "auto",
      "axes": {}
    }
  },
  "colors": {
    "surface": "#07333E",
    "text": "#EEF4E9",
    "muted": "#A9C6C3",
    "border": "#668E7C",
    "accent": "#72E7F2",
    "warning": "#F2E878",
    "button": "#124A54",
    "buttonText": "#EEF4E9",
    "selected": "#98DEC1",
    "selectedText": "#082D33",
    "primary": "#72E7F2",
    "primaryText": "#062D37",
    "track": "#285562",
    "focus": "#F2E878"
  },
  "layout": {
    "unitPx": 4,
    "panelPaddingPx": 24,
    "gapPx": 12
  },
  "components": {
    "panel": {
      "radiusPx": 28,
      "borderWidthPx": 3,
      "borderStyle": "double",
      "shadow": {
        "xPx": 0,
        "yPx": 0,
        "blurPx": 0
      }
    },
    "button": {
      "radiusPx": 18,
      "borderWidthPx": 1,
      "borderStyle": "solid",
      "shadow": {
        "xPx": 0,
        "yPx": 0,
        "blurPx": 0
      }
    },
    "titleAlign": "left",
    "disabledOpacity": 0.5,
    "progressHeightPx": 8
  },
  "icons": {
    "status": "planned",
    "direction": "Rounded shell-white line silhouettes with a single cyan inset, open counters and blunt terminals; use bronze collar shapes sparingly around habitat or pressure controls. Resources must have distinct silhouettes, selection adds a check mark, and warnings retain a recognizable warning symbol with text. Keep all accessible labels and standard navigation meanings.",
    "assets": []
  },
  "guardrails": {
    "minBodyPx": 14,
    "minSmallPx": 12,
    "minTextContrast": 4.5,
    "minFocusContrast": 3
  }
}