.video_container__gwTRA{display:grid;grid-template-columns:1fr;grid-gap:var(--s5);gap:var(--s5);margin-top:var(--s4)}@media (min-width:1024px){.video_container__gwTRA{grid-template-columns:1fr 340px;align-items:start}}.video_theater__WGP3v{display:flex;flex-direction:column;gap:var(--s4)}.video_playerFrame__6s54d{border:1px solid var(--rule-firm);background:var(--paper);border-radius:var(--radius);overflow:hidden}.video_playerWrapper__0TTTQ{position:relative;width:100%;padding-bottom:56.25%;background:#111}.video_playerIframe__vu4e8{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.video_theaterHeader__wXKf8{padding:var(--s4);border-top:1px solid var(--rule-subtle);display:flex;flex-direction:column;gap:var(--s2)}.video_levelTag__boqu_{display:inline-block;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-soft)}.video_lessonTitle__jA5K6{font-family:var(--font-display);font-size:22px;font-weight:600;color:var(--ink);line-height:1.35;margin:0}.video_lessonSubtitle__gpN9J{font-size:14px;color:var(--ink-soft);margin:0;line-height:1.5}.video_sourceBox__oicCf{border:1px solid var(--rule-firm);background:var(--paper-sunk);padding:var(--s3) var(--s4);border-radius:var(--radius);display:flex;flex-direction:column;gap:var(--s2)}.video_sourceHeader__hKJnf{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft)}.video_sourceTabs__4mALh{display:flex;gap:var(--s2);flex-wrap:wrap}.video_sourceBtn__hc1fy{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;background:var(--paper);color:var(--ink);border:1px solid var(--rule-firm);transition:all var(--dur) var(--ease)}.video_sourceBtn__hc1fy:hover{background:var(--paper-subtle)}.video_sourceBtnActive__pVeJj{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}.video_sourceMeta__l0AO7{font-size:12.5px;color:var(--ink-soft);line-height:1.5}.video_academicCard__R_of6{border:1px solid var(--rule-firm);background:var(--paper);padding:var(--s4);border-radius:var(--radius);display:flex;flex-direction:column;gap:var(--s2)}.video_cardHeading__eY94Y{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink);margin:0}.video_pointsList__n7kcI{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}.video_notesArea__DfCNt,.video_pointsList__n7kcI{color:var(--ink);font-size:13.5px;line-height:1.6}.video_notesArea__DfCNt{width:100%;min-height:90px;padding:10px 12px;font-family:inherit;background:var(--paper-sunk);border:1px solid var(--rule-firm);border-radius:var(--radius);resize:vertical}.video_notesArea__DfCNt:focus{outline:none;border-color:var(--ink);background:var(--paper)}.video_sidebar__x6zwa{border:1px solid var(--rule-firm);background:var(--paper);border-radius:var(--radius);display:flex;flex-direction:column;max-height:780px;overflow:hidden}.video_sidebarTitle__D3cgJ{padding:var(--s3) var(--s4);background:var(--paper-sunk);border-bottom:1px solid var(--rule-firm);display:flex;justify-content:space-between;align-items:baseline}.video_sidebarList__hjfm_{display:flex;flex-direction:column;overflow-y:auto;padding:var(--s2);gap:4px}.video_playItem__0gc__{display:flex;flex-direction:column;gap:3px;padding:8px 10px;border-radius:var(--radius);border:1px solid transparent;background:var(--paper);cursor:pointer;text-align:left;transition:all var(--dur) var(--ease)}.video_playItem__0gc__:hover{background:var(--paper-sunk)}.video_playItemActive__UjKDu{background:var(--paper-sunk);border-color:var(--rule-firm);box-shadow:inset 3px 0 0 0 var(--ink)}.video_playItemHead__UWTmK{display:flex;justify-content:space-between;align-items:center}.video_playItemTitle__lWR4Q{font-size:13px;font-weight:600;color:var(--ink);line-height:1.4}.video_playItemFoot__ihtZD{font-size:11.5px;color:var(--ink-soft);display:flex;justify-content:space-between}