Structure and organize CSS with Cascade Layers `@layer`

[czerkies]

• @layer https://www.w3.org/TR/css-cascade-5/#at-ruledef-layer

Organisation

• designSystem
  • variables
  • resets
  • layouts
  • components

[czerkies]

• [css-cascade-5] Allow authors to explicitly place unlayered styles in the cascade layer order w3c/csswg-drafts#6323 (comment)