:root{--font-sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-serif:"Lora",Georgia,serif;--font-mono:"JetBrains Mono",ui-monospace,monospace;--radius-sm:0.25rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--color-brand:#4f46e5;--color-brand-foreground:#fff;--color-accent:#06b6d4;--color-background:#fff;--color-foreground:#0f172a;--color-muted:#64748b;--color-border:#e2e8f0;--color-success:#16a34a;--color-warning:#d97706;--color-danger:#dc2626}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-background);color:var(--color-foreground);-webkit-font-smoothing:antialiased}