#lesson{scroll-margin-top:24px}#lesson .lesson-inner{max-width:1000px}#lesson details{border:1px solid #d8d4c7;border-radius:8px;padding:18px;margin:14px 0;background:#fff}#lesson summary{font-size:1.1rem;font-weight:700;cursor:pointer}#lesson pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;background:#f5f1e7;padding:18px;line-height:1.6}#lesson .lesson-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}#lesson button{background:#173e43;color:white;padding:10px 18px;border:0;border-radius:5px;cursor:pointer;font:inherit}#lesson .video-pending{padding:24px;background:#f5f1e7;border:1px solid #d8d4c7}#lesson .copy-result{margin-left:12px}