:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#0f172a;background:#f8fafc}body{margin:0}a{color:#2563eb}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:spin 1s linear infinite}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#9ca3af}