:root{--bg-base:#FAFAFA;--bg-surface:#FFFFFF;--fg-primary:#171717;--fg-muted:#737373;--border-subtle:#E5E5E5;--brand-primary:#000000;--brand-primary-fg:#FFFFFF;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.03);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.05);--font-sans:"Inter",system-ui,sans-serif;--font-mono:"JetBrains Mono",monospace}