.stylelintrc.yml

defaultSeverity: warning
extends:
  - stylelint-config-standard
  - stylelint-config-recommended
plugins:
  - stylelint-scss
rules:
  # Line Spacing
  rule-empty-line-before:
    - always-multi-line
    - ignore:
        - after-comment
        - first-nested
        - inside-block

  # Disallows
  selector-max-id: 2
  comment-no-empty: true
  declaration-block-no-duplicate-properties: true
  block-no-empty:
    - true
    - ignore:
        - comments
  no-descending-specificity:
    - true
    - ignore:
        - selectors-within-list
  no-extra-semicolons: true
  color-no-invalid-hex: true
  number-no-trailing-zeros: true
  length-zero-no-unit: true
  scss/at-extend-no-missing-placeholder: null
  selector-no-qualifying-type:
    - true
    - ignore:
        - attribute
        - class
        - id
  property-no-unknown:
    - true

  # Nesting
  max-nesting-depth:
    - 5
    - ignore: ["blockless-at-rules", "pseudo-classes"]

  # Name Formats (BEM)
  selector-class-pattern: ^[a-z]([a-z0-9-]+)?(__([a-z0-9]+-?)+)?(--([a-z0-9]+-?)+){0,2}$

  # Style Guide
  indentation: 2
  color-named: never
  declaration-block-trailing-semicolon: always
  unit-case: lower
  color-hex-case: lower
  number-leading-zero: always
  unit-no-unknown:
    - true
    - ignoreUnits:
        - /^[-+][\d$(]/
  font-family-no-duplicate-names: true
  string-quotes: single
  selector-max-compound-selectors: 6

  # Inner Spacing
  function-calc-no-unspaced-operator: true
  declaration-block-semicolon-newline-after: always
  block-opening-brace-space-before: always
  block-opening-brace-newline-after: always
  block-closing-brace-newline-after: always
  declaration-bang-space-after: never
  declaration-colon-space-after: always

  # Final Items
  scss/at-import-partial-extension-blacklist: [/css/]

  at-rule-no-unknown: null