*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--color-primary:#1e40af;--color-primary-hover:#1d4ed8;--color-danger:#dc2626;--color-success:#16a34a;--color-warning:#d97706;--color-text:#111827;--color-muted:#6b7280;--color-border:#e5e7eb;--color-bg:#f9fafb;--radius:8px;--font-sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"Fira Code","Cascadia Code",Consolas,monospace}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}