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:root { /* Design tokens */ --color-primary: #007bff; --color-secondary: #6c757d; --font-base: 16px; --radius: 4px; --shadow: 0 2px 8px rgba(0,0,0,0.1); } /* Use anywhere in the stylesheet */ .btn { background: var(--color-primary); border-radius: var(--radius); }
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