:root{--color-bg:#f8fafc;--color-surface:#fff;--color-text:#0f172a;--color-text-muted:#475569;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--border-subtle:#e2e8f0;--radius-md:10px;--radius-lg:16px;--shadow-sm:0 1px 2px #0f172a0f;--font-sans:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}
*{box-sizing:border-box}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);margin:0}a{color:inherit;text-decoration:none}