.walkthrough-chapters{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.walkthrough-chapters button{display:inline-flex;align-items:center;gap:7px;padding:8px 11px;border:1px solid #cbded3;border-radius:7px;background:#fff;color:#244f3e;font:inherit;font-size:12px;line-height:1.3;transition:background .15s,border-color .15s}
.walkthrough-chapters button:hover,.walkthrough-chapters button[aria-pressed="true"]{background:#e5f1e9;border-color:#317a5a}
.walkthrough-chapters button:focus-visible{outline:3px solid #176f57;outline-offset:3px}
.walkthrough-chapters button span{font-variant-numeric:tabular-nums;font-size:10px;font-weight:700;color:#5b7365}
.chapter-status{font-size:12px;color:#526c5b;min-height:20px;margin:8px 0 0}
.video-frame video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#153e32}
@media(max-width:700px){.walkthrough-chapters{gap:6px}.walkthrough-chapters button{font-size:11px;padding:9px}.video-label{gap:8px;flex-wrap:wrap}}