:root{--content-max:940px;--content-gutter:clamp(20px, 3vw, 48px);--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-7:32px;--space-8:40px;--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-pill:999px;--control-xs:20px;--control-sm:28px;--control-md:32px;--control-lg:36px;--font-size-xs:10px;--font-size-sm:12px;--font-size-md:14px;--font-size-lg:16px;--font-size-xl:19px;--line-height-tight:1.3;--line-height-normal:1.5;--line-height-readable:1.72;--motion-fast:.12s;--motion-normal:.18s;--motion-slow:.28s;--ease-standard:cubic-bezier(.2, .7, .2, 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