:root{--background: #ffffff;--foreground: #171717}@media (prefers-color-scheme: dark){:root{--background: #0a0a0a;--foreground: #ededed}}body{background:var(--background);color:var(--foreground);font-family:Arial,Helvetica,sans-serif;margin:0;padding:0;min-height:100vh}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}