{
  "$description": "Brand: Fastmail — light mode",
  "color": {
    "swatches": {
      "$description": "Source-of-truth color swatches from palette fastmail@1.0.0",
      "fastmail-blue": {
        "$value": "#0067B9",
        "$type": "color",
        "$description": "Fastmail's primary action / CTA color — the dominant brand blue used for buttons, links, and primary affordances across the marketing site and product.\n"
      },
      "fastmail-blue-hover": {
        "$value": "#176BAD",
        "$type": "color",
        "$description": "Hover variant on the primary CTA."
      },
      "fastmail-blue-active": {
        "$value": "#296B9F",
        "$type": "color",
        "$description": "Pressed / active state of the primary blue."
      },
      "fastmail-deep-blue": {
        "$value": "#243959",
        "$type": "color",
        "$description": "The navy \"trust\" hue used as the footer background and as the brand-anchor identity color in marketing surfaces. Reads as \"secure, established\" against the lighter primary blue.\n"
      },
      "fastmail-lightblue": {
        "$value": "#69B3E7",
        "$type": "color",
        "$description": "The mid-light blue used in the footer flag-gradient and as the focus-ring / outline color on buttons.\n"
      },
      "fastmail-mellow-yellow": {
        "$value": "#FBF7EF",
        "$type": "color",
        "$description": "The warm off-white \"mellow\" surface — a paper-toned canvas used on marketing modules as the calm alternative to pure white.\n"
      },
      "fastmail-yellow": {
        "$value": "#FFC107",
        "$type": "color",
        "$description": "The saturated yellow used in the footer flag-gradient and for highlight accents.\n"
      },
      "fastmail-pink": {
        "$value": "#FFA0C3",
        "$type": "color",
        "$description": "The blush-pink accent that opens the footer flag-gradient — a softer, warmer counterpoint to the dominant blues.\n"
      },
      "fastmail-text": {
        "$value": "#1B1E20",
        "$type": "color",
        "$description": "Primary body-text color — a soft near-black with a slight cool tint that pairs with the deep-blue brand anchor.\n"
      },
      "fastmail-text-alt": {
        "$value": "#333E48",
        "$type": "color",
        "$description": "Alternate heading/text on lighter surfaces."
      },
      "fastmail-text-subtle": {
        "$value": "#5B646C",
        "$type": "color",
        "$description": "Subtle/secondary text on light surfaces."
      },
      "fastmail-text-extra-subtle": {
        "$value": "#70777E",
        "$type": "color",
        "$description": "Tertiary text and inactive labels."
      },
      "fastmail-border-light": {
        "$value": "#EAEBEC",
        "$type": "color",
        "$description": "Light border / divider on white surfaces."
      },
      "fastmail-border-medium": {
        "$value": "#D6D8DA",
        "$type": "color",
        "$description": "Mid-tone border on cards and inputs."
      },
      "fastmail-bg-alt": {
        "$value": "#F4F5F5",
        "$type": "color",
        "$description": "Alternate page-background tint (faint neutral surface)."
      },
      "fastmail-bg-focused": {
        "$value": "#E9EBEE",
        "$type": "color",
        "$description": "Selected / focused row tint."
      },
      "fastmail-white": {
        "$value": "#FFFFFF",
        "$type": "color",
        "$description": "Base page background."
      },
      "fastmail-success": {
        "$value": "#147B33",
        "$type": "color",
        "$description": "Success / send-confirmed (ui-color-successgreen-100)."
      },
      "fastmail-error": {
        "$value": "#B9031F",
        "$type": "color",
        "$description": "Error / destructive (ui-color-criticalred-100)."
      },
      "fastmail-warning": {
        "$value": "#CA3C08",
        "$type": "color",
        "$description": "Warning / snooze (ui-color-snoozeorange-100)."
      }
    },
    "roles": {
      "$description": "Semantic color roles (light mode) mapped to palette swatches",
      "background": {
        "$value": "{color.swatches.fastmail-white}",
        "$type": "color",
        "$description": "background role → Fastmail White"
      },
      "surface": {
        "$value": "{color.swatches.fastmail-bg-alt}",
        "$type": "color",
        "$description": "surface role → Fastmail Background Alt"
      },
      "surface-elevated": {
        "$value": "{color.swatches.fastmail-white}",
        "$type": "color",
        "$description": "surface-elevated role → Fastmail White"
      },
      "surface-warm": {
        "$value": "{color.swatches.fastmail-mellow-yellow}",
        "$type": "color",
        "$description": "surface-warm role → Fastmail Mellow Yellow"
      },
      "text-primary": {
        "$value": "{color.swatches.fastmail-text}",
        "$type": "color",
        "$description": "text-primary role → Fastmail Text"
      },
      "text-secondary": {
        "$value": "{color.swatches.fastmail-text-subtle}",
        "$type": "color",
        "$description": "text-secondary role → Fastmail Text Subtle"
      },
      "text-tertiary": {
        "$value": "{color.swatches.fastmail-text-extra-subtle}",
        "$type": "color",
        "$description": "text-tertiary role → Fastmail Text Extra Subtle"
      },
      "primary": {
        "$value": "{color.swatches.fastmail-blue}",
        "$type": "color",
        "$description": "primary role → Fastmail Blue"
      },
      "primary-hover": {
        "$value": "{color.swatches.fastmail-blue-hover}",
        "$type": "color",
        "$description": "primary-hover role → Fastmail Blue Hover"
      },
      "accent": {
        "$value": "{color.swatches.fastmail-blue}",
        "$type": "color",
        "$description": "accent role → Fastmail Blue"
      },
      "accent-hover": {
        "$value": "{color.swatches.fastmail-blue-active}",
        "$type": "color",
        "$description": "accent-hover role → Fastmail Blue Active"
      },
      "warning": {
        "$value": "{color.swatches.fastmail-warning}",
        "$type": "color",
        "$description": "warning role → Fastmail Warning"
      },
      "warning-hover": {
        "$value": "{color.swatches.fastmail-warning}",
        "$type": "color",
        "$description": "warning-hover role → Fastmail Warning"
      },
      "error": {
        "$value": "{color.swatches.fastmail-error}",
        "$type": "color",
        "$description": "error role → Fastmail Error"
      },
      "success": {
        "$value": "{color.swatches.fastmail-success}",
        "$type": "color",
        "$description": "success role → Fastmail Success"
      },
      "border": {
        "$value": "{color.swatches.fastmail-border-light}",
        "$type": "color",
        "$description": "border role → Fastmail Border Light"
      },
      "brand-overrides": {
        "$description": "Brand-level role overrides (take precedence over palette role mappings)",
        "identity": {
          "$value": "{color.swatches.fastmail-deep-blue}",
          "$type": "color",
          "$description": "Brand role identity → Fastmail Deep Blue"
        },
        "on-identity": {
          "$value": "{color.swatches.fastmail-white}",
          "$type": "color",
          "$description": "Brand role on-identity → Fastmail White"
        },
        "primary": {
          "$value": "{color.swatches.fastmail-blue}",
          "$type": "color",
          "$description": "Brand role primary → Fastmail Blue"
        },
        "primary-hover": {
          "$value": "{color.swatches.fastmail-blue-hover}",
          "$type": "color",
          "$description": "Brand role primary-hover → Fastmail Blue Hover"
        },
        "accent": {
          "$value": "{color.swatches.fastmail-blue}",
          "$type": "color",
          "$description": "Brand role accent → Fastmail Blue"
        },
        "accent-hover": {
          "$value": "{color.swatches.fastmail-blue-active}",
          "$type": "color",
          "$description": "Brand role accent-hover → Fastmail Blue Active"
        },
        "mark": {
          "$value": "{color.swatches.fastmail-blue}",
          "$type": "color",
          "$description": "Brand role mark → Fastmail Blue"
        },
        "flag-pink": {
          "$value": "{color.swatches.fastmail-pink}",
          "$type": "color",
          "$description": "Brand role flag-pink → Fastmail Pink"
        },
        "flag-blue": {
          "$value": "{color.swatches.fastmail-blue}",
          "$type": "color",
          "$description": "Brand role flag-blue → Fastmail Blue"
        },
        "flag-lightblue": {
          "$value": "{color.swatches.fastmail-lightblue}",
          "$type": "color",
          "$description": "Brand role flag-lightblue → Fastmail Light Blue"
        },
        "flag-yellow": {
          "$value": "{color.swatches.fastmail-yellow}",
          "$type": "color",
          "$description": "Brand role flag-yellow → Fastmail Yellow"
        },
        "surface-warm": {
          "$value": "{color.swatches.fastmail-mellow-yellow}",
          "$type": "color",
          "$description": "Brand role surface-warm → Fastmail Mellow Yellow"
        },
        "background": {
          "$value": "{color.swatches.fastmail-white}",
          "$type": "color",
          "$description": "Brand role background → Fastmail White"
        },
        "surface": {
          "$value": "{color.swatches.fastmail-bg-alt}",
          "$type": "color",
          "$description": "Brand role surface → Fastmail Background Alt"
        },
        "text-primary": {
          "$value": "{color.swatches.fastmail-text}",
          "$type": "color",
          "$description": "Brand role text-primary → Fastmail Text"
        },
        "text-secondary": {
          "$value": "{color.swatches.fastmail-text-subtle}",
          "$type": "color",
          "$description": "Brand role text-secondary → Fastmail Text Subtle"
        },
        "error": {
          "$value": "{color.swatches.fastmail-error}",
          "$type": "color",
          "$description": "Brand role error → Fastmail Error"
        },
        "success": {
          "$value": "{color.swatches.fastmail-success}",
          "$type": "color",
          "$description": "Brand role success → Fastmail Success"
        },
        "warning": {
          "$value": "{color.swatches.fastmail-warning}",
          "$type": "color",
          "$description": "Brand role warning → Fastmail Warning"
        }
      }
    }
  },
  "font": {
    "$description": "Typography roles mapped to font atoms",
    "heading": {
      "family": {
        "$value": [
          "proxima-nova",
          "Inter",
          "-apple-system",
          "BlinkMacSystemFont",
          "Segoe UI",
          "Helvetica Neue",
          "Helvetica",
          "Arial",
          "sans-serif"
        ],
        "$type": "fontFamily",
        "$description": "heading role → Proxima Nova (proxima-nova@1.0.0)"
      },
      "weight": {
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    },
    "body": {
      "family": {
        "$value": [
          "proxima-nova",
          "Inter",
          "-apple-system",
          "BlinkMacSystemFont",
          "Segoe UI",
          "Helvetica Neue",
          "Helvetica",
          "Arial",
          "sans-serif"
        ],
        "$type": "fontFamily",
        "$description": "body role → Proxima Nova (proxima-nova@1.0.0)"
      },
      "weight": {
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    },
    "mono": {
      "family": {
        "$value": [
          "JetBrainsMono Nerd Font",
          "JetBrains Mono",
          "Fira Code",
          "Menlo",
          "Monaco",
          "Consolas",
          "Liberation Mono",
          "monospace"
        ],
        "$type": "fontFamily",
        "$description": "mono role → JetBrainsMono Nerd Font (jetbrainsmono-nerdfont@1.0.0)"
      },
      "weight": {
        "100": {
          "$value": 100,
          "$type": "fontWeight"
        },
        "200": {
          "$value": 200,
          "$type": "fontWeight"
        },
        "300": {
          "$value": 300,
          "$type": "fontWeight"
        },
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "800": {
          "$value": 800,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    }
  }
}