:root{--p:#007bff;--bg:#0f1115}body{margin:0;background:var(--bg);color:#e1e1e1;font-family:system-ui}
.loader{border:2px solid #222;border-top:2px solid var(--p);border-radius:50%;width:18px;height:18px;animation:s 1s linear infinite}
@keyframes s{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}