:root{--surface-base:#fcfcfc;--surface-l1:#f7f7f7;--surface-l1-hover:#f2f2f2;--surface-l2:#f2f2f2;--surface-l3:#e8e8e8;--surface-invert:#050505;--fg-primary:#050505;--fg-secondary:#636363;--fg-tertiary:#858585;--fg-invert:#fcfcfc;--border-l1:rgba(5,5,5,0.06);--border-l2:rgba(5,5,5,0.1);--border-l3:rgba(5,5,5,0.15);--button-filled:#050505;--button-filled-hover:#292929;--button-filled-active:#363636;--ghost-hover:rgba(5,5,5,0.04);--ghost-active:rgba(5,5,5,0.08);--secondary-fill:rgba(5,5,5,0.04);--secondary-fill-hover:rgba(5,5,5,0.06);--accent:#1a5eff;--accent-soft:rgba(26,94,255,0.08);--danger:#b72a35;--r-sm:4px;--r-md:6px;--r-lg:8px;--r-xl:12px;--r-2xl:16px;--r-3xl:24px;--r-4xl:32px;--r-full:9999px;--t-meta:13px;--t-chrome:14px;--t-ui:15px;--t-body:16px;--t-title:17px;--measure:34em;--gutter:clamp(1.125rem,4vw,2rem);--mono:ui-monospace,"SF Mono","Cascadia 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