:root{--bg-base:#f8fafc;--bg-white:#ffffff;--blue-500:#673de6;--blue-600:#5527db;--ink-900:#0f172a;--slate-600:#475569;--slate-500:#64748b;--border:#e2e8f0;--success:#10b981;--warning:#f59e0b;--danger:#ef4444}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-base);color:var(--ink-900);font-family:system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}