:root{--bg-base:#ffffff;--bg-elevated:#f5f5f5;--bg-inverse:#000000;--text-primary:#000000;--text-secondary:#525252;--text-tertiary:#a3a3a3;--text-inverse:#ffffff;--border-default:#e5e5e5;--border-strong:#000000;--gray-100:#f5f5f5;--gray-200:#e5e5e5;--gray-300:#d4d4d4;--gray-400:#a3a3a3;--gray-500:#737373;--gray-600:#525252;--gray-700:#404040;--gray-800:#262626;--gray-900:#171717;--font-sans:Inter,system-ui,-apple-system,sans-serif;--sidebar-width:240px;--topbar-height:56px;--radius-sm:4px;--radius-md:8px}*,:after,:before{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);font-size:14px;color:var(--text-primary);background:var(--bg-base);-webkit-font-smoothing:antialiased}