#course-learning{margin:28px 0;padding:24px;border:1px solid #ccdcd6;border-radius:16px;background:#f7faf8}#course-learning[hidden]{display:none}#course-learning h2{margin-top:0}.csa-note{font-size:.85rem;color:#566961;line-height:1.6}.csa-controls{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.csa-controls button{font:inherit;padding:10px 15px;border:1px solid #0d766f;border-radius:8px;background:white;color:#075d58;cursor:pointer}.csa-controls button[aria-pressed=true]{background:#075d58;color:white}.csa-controls button:focus-visible{outline:3px solid #e8a537;outline-offset:3px}.csa-workspace{border-radius:10px;overflow:hidden}.csa-workspace:empty{display:none}.csa-status:empty{display:none}@media(max-width:600px){#course-learning{padding:12px}.csa-controls button{width:100%}}