{
  "name": "github-homepage-analysis",
  "version": "1.0.0",
  "description": "External, reproducible analysis of the public GitHub homepage; not an official GitHub design system.",
  "source": "https://github.com/",
  "observedAt": "2026-08-02",
  "colors": {
    "canvasDefault": "#FFFFFF",
    "canvasSubtle": "#F6F8FA",
    "canvasInset": "#F6F8FA",
    "fgDefault": "#1F2328",
    "fgMuted": "#59636E",
    "fgOnEmphasis": "#FFFFFF",
    "accent": "#0969DA",
    "accentMuted": "#54AEFF",
    "neutralEmphasis": "#24292F",
    "borderDefault": "#D1D9E0",
    "success": "#1A7F37",
    "danger": "#D1242F",
    "attention": "#9A6700",
    "done": "#8250DF",
    "sponsor": "#BF3989"
  },
  "typography": {
    "fontFamily": "-apple-system, BlinkMacSystemFont, Segoe UI, sans-serif",
    "codeFamily": "ui-monospace, SFMono-Regular, Menlo, Consolas, monospace",
    "display": { "fontSize": "48px", "fontWeight": 700, "lineHeight": 1.1 },
    "heading2": { "fontSize": "32px", "fontWeight": 600, "lineHeight": 1.25 },
    "heading3": { "fontSize": "24px", "fontWeight": 600, "lineHeight": 1.3 },
    "body": { "fontSize": "16px", "fontWeight": 400, "lineHeight": 1.5 },
    "label": { "fontSize": "14px", "fontWeight": 600, "lineHeight": 1.4 },
    "code": { "fontSize": "13px", "fontWeight": 400, "lineHeight": 1.45 }
  },
  "rounded": { "control": "6px", "card": "6px", "pill": "999px", "avatar": "50%" },
  "spacing": { "xxs": "4px", "xs": "8px", "sm": "12px", "md": "16px", "lg": "24px", "xl": "32px", "section": "48px", "contentMax": "1280px" },
  "breakpoints": { "mobile": "320px", "small": "544px", "medium": "768px", "large": "1012px", "xlarge": "1280px", "wide": "1400px" },
  "components": {
    "global-header": { "states": ["default", "expanded", "compact", "focus-visible"] },
    "hero-cta": { "states": ["default", "focus", "invalid", "disabled"] },
    "feature-section": { "states": ["default", "hover-link", "loading", "reduced-motion"] },
    "product-card": { "states": ["default", "hover", "focus-visible", "disabled"] },
    "status-callout": { "variants": ["info", "success", "attention", "danger"] },
    "footer": { "states": ["default", "stacked-mobile"] }
  },
  "provenance": {
    "type": "external-analysis",
    "official": false,
    "references": [
      "https://github.com/",
      "https://primer.style/product/getting-started/foundations/responsive",
      "https://primer.style/product/getting-started/foundations/layout/",
      "https://www.primer.style/product/primitives/color/"
    ],
    "notes": "Values are an analytical snapshot and must be revalidated before production use."
  }
}