CSS Contract

YAML-Inhalt

contract:
  name: css-standards
  version: "2.0"
  status: active
  description: |
    CSS-Standards mit Fokus auf Accessibility (WCAG 2.1 AA).
    Migriert auf Meta-Schema v1.0 am 22.12.2025.

  created: "2025-12-20"
  author: migration

  scope:
    paths:
      - "/src/View/**/*.php"
      - "/public/css/**/*.css"

  rules:
    - id: contrast-normal-text
      check_type: custom
      script: "/opt/scripts/contract-validators/color_contrast.py"
      args: ["--min-ratio", "4.5"]
      severity: critical
      description: "Farbkontrast min. 4.5:1 für normalen Text (WCAG 1.4.3)"

    - id: no-outline-none
      check_type: forbidden_pattern
      patterns:
        - "outline: none"
        - "outline: 0"
        - "outline:none"
        - "outline:0"
      in_files: "**/*.css"
      severity: major
      description: "Focus-Styles niemals entfernen (WCAG 2.4.7)"

    - id: no-important
      check_type: forbidden_pattern
      patterns:
        - "!important"
      in_files: "**/*.css"
      exclude_files:
        - "**/utilities.css"
      severity: major
      description: "Kein !important außer für Utility-Klassen"

    - id: code-block-colors
      check_type: required_pattern
      patterns:
        - "pre"
        - "code"
      in_files: "**/*.css"
      severity: critical
      description: "Pre/Code-Blöcke müssen Farben definieren"

    - id: min-font-size
      check_type: forbidden_pattern
      patterns:
        - "font-size: 12px"
        - "font-size: 11px"
        - "font-size: 10px"
        - "font-size: 0.75rem"
        - "font-size: 0.7rem"
      in_files: "**/*.css"
      severity: major
      description: "Mindestschriftgröße 16px für Fließtext"

  enforcement:
    on_violation: warn

  pass_threshold:
    critical_max: 0
    major_max: 2
    minor_max: 5

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