{
  "$schema": "../schemas/rule.schema.json",
  "id": "spacing",
  "version": "1.0.0",
  "name": "Spacing Token Rules",
  "description": "Rules for consistent spacing using design tokens",
  "category": "tokens",
  "severity": "warning",
  "rules": [
    {
      "id": "no-arbitrary-spacing",
      "name": "No Arbitrary Spacing Values",
      "description": "Spacing must use token scale (4px increments), not arbitrary values",
      "severity": "warning",
      "patterns": {
        "forbidden": [
          "margin:\\s*[0-9]+px",
          "padding:\\s*[0-9]+px",
          "gap:\\s*[0-9]+px"
        ],
        "allowed": [
          "var\\(--spacing-[a-z0-9]+\\)",
          "\\$spacing-[a-z0-9]+",
          "spacing\\.[a-z0-9]+"
        ]
      },
      "exceptions": [
        "0",
        "0px",
        "auto",
        "inherit"
      ]
    },
    {
      "id": "spacing-scale",
      "name": "Use Spacing Scale",
      "description": "Only use values from the defined spacing scale",
      "severity": "error",
      "validation": {
        "type": "scale-check",
        "allowedValues": [0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 80, 96, 128]
      }
    },
    {
      "id": "consistent-component-spacing",
      "name": "Component Internal Spacing",
      "description": "Components should use consistent internal spacing patterns",
      "severity": "info",
      "guidelines": [
        "Use spacing.xs (4px) for tight groupings",
        "Use spacing.sm (8px) for related elements",
        "Use spacing.md (16px) for section separation",
        "Use spacing.lg (24px) for major sections",
        "Use spacing.xl (32px+) for page-level separation"
      ]
    }
  ],
  "tokens": {
    "required": [
      "spacing.xs",
      "spacing.sm",
      "spacing.md",
      "spacing.lg",
      "spacing.xl"
    ],
    "scale": {
      "xs": "4px",
      "sm": "8px",
      "md": "16px",
      "lg": "24px",
      "xl": "32px",
      "2xl": "48px",
      "3xl": "64px"
    }
  }
}