The Future of Reusable CSS
summary
Argues that making styles local with CSS Modules and using native CSS Variables lets components be truly reusable by inheriting context not by being overridden; demos build contextual cards and buttons driven by variables (currentColor, flexbox/grid layout, the lobotomized owl selector) and they work in modern browsers where variables are in a majority. Recommends separating layout from UI, documenting variable hooks, and providing an override escape hatch.
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