@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#0f0f0f;color:#e0e0e0;min-height:100vh}button{cursor:pointer}input{font-family:inherit}