.classroom-workspace{min-width:0}.classroom-course-picker{max-width:580px;margin:22px 0}.classroom-resource-list{border:1px solid var(--line);border-radius:14px;overflow:hidden}.classroom-resource-list:empty{display:none}.classroom-resource-list section>header{display:flex;justify-content:space-between;align-items:center;padding:16px;background:var(--canvas);gap:16px}.classroom-resource-list small{display:block;font-size:13px;color:var(--muted);margin-top:4px}.classroom-resource-list button{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;text-align:left;border:0!important;border-radius:0!important;border-top:1px solid var(--line)!important;min-height:60px;padding:16px!important;overflow-wrap:anywhere}.classroom-resource-list button:hover{background:var(--canvas)}.classroom-book-heading{display:flex;justify-content:space-between;align-items:center;gap:14px}.classroom-book-heading h3{margin-bottom:4px}.classroom-book-heading p{margin:0;color:var(--muted)}.classroom-presentation-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px 0}.classroom-workspace .classroom-presentation-bar label{display:flex;align-items:center;gap:8px}.classroom-console{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}.classroom-console>.ra-reader{min-width:0}.classroom-notes{border:1px solid var(--line);border-radius:14px;padding:16px;position:sticky;top:14px;background:var(--panel)}.classroom-notes header{display:grid;gap:5px;margin-bottom:12px}.classroom-notes h3{margin:0}.classroom-notes small{color:var(--muted);font-size:12px}.classroom-notes textarea{min-height:280px;resize:vertical}.classroom-notes footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px}.classroom-console .ra-player{position:relative;bottom:auto}.classroom-console .ra-page-scroll{max-height:75dvh}.classroom-display{position:fixed;inset:0;background:#09090b;color:#fff;overflow:hidden;font-family:inherit;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);box-sizing:border-box}.classroom-display>header{height:40px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 20px;box-sizing:border-box;font-size:14px}.classroom-display-content{position:relative;height:calc(100% - 40px);display:flex;justify-content:center;align-items:center;gap:16px}.classroom-display-content>img{height:100%;max-width:100%;object-fit:contain}.classroom-display-media{position:absolute;inset:0;background:#09090bf5;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:20px}.classroom-display-media.audio{inset:auto 20px 20px;padding:14px;border-radius:12px;background:#09090bd9}.classroom-display-media video{max-width:100%;max-height:80%;width:auto}.classroom-display-transcript{white-space:pre-wrap;overflow:auto;max-height:35dvh;font-size:22px;line-height:1.7;max-width:1000px}.classroom-display-error,.classroom-display-start{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;z-index:10;background:#09090be8;padding:24px;text-align:center}.classroom-display button{color:#fff;background:#57068c;border:1px solid #ad7bd1;border-radius:12px;padding:14px 24px;font:inherit}@media(max-width:1000px){.classroom-console{grid-template-columns:minmax(0,1fr)}.classroom-notes{position:static}.classroom-notes textarea{min-height:160px}.classroom-book-heading>button{flex-shrink:0;white-space:nowrap}.classroom-display-transcript{font-size:18px}}