.LessonPlayer_player__TIXEb{position:fixed;inset:0;z-index:80;display:flex;flex-direction:column;background:var(--ab-paper);color:var(--ab-ink);font-family:var(--font-onest),sans-serif;overflow:hidden;isolation:isolate}.app-shell:has(.LessonPlayer_player__TIXEb)>:not(main){display:none}.LessonPlayer_player__TIXEb button{font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}.LessonPlayer_player__TIXEb button:disabled{opacity:.45;cursor:not-allowed}.LessonPlayer_player__TIXEb a:focus-visible,.LessonPlayer_player__TIXEb button:focus-visible,.LessonPlayer_player__TIXEb input:focus-visible{outline:2px solid var(--ab-ink);outline-offset:4px}.LessonPlayer_player__TIXEb [tabindex="-1"]:focus{outline:none}.LessonPlayer_topBar__MlGSX{display:grid;grid-template-columns:40px 1fr auto;gap:20px;align-items:center;padding:19px 38px;flex:none;border-bottom:1px solid var(--ab-line);background:var(--ab-paper);z-index:2}.LessonPlayer_iconBtn__g1uTv{width:38px;height:38px;display:inline-grid;place-items:center;border:1px solid var(--ab-line);background:var(--ab-paper);border-radius:8px;color:var(--ab-ink)}.LessonPlayer_iconBtn__g1uTv:hover{background:var(--ab-paper-inset)}.LessonPlayer_crumb__Rl8uk{display:flex;align-items:center;gap:15px;font-size:13px;min-width:0}.LessonPlayer_crumbDay__xkoNY{white-space:nowrap;color:var(--ab-muted-deep);font-size:12px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.LessonPlayer_crumbDot__VDRr_{color:var(--ab-line-strong)}.LessonPlayer_crumbLesson__dDamk{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.LessonPlayer_exitBtn__n_2yA{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:none;border:0;color:var(--ab-ink-soft);min-height:40px;font-size:12px!important}.LessonPlayer_stage__dEaSa{flex:1 1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;-webkit-overflow-scrolling:touch;padding:30px 40px 42px}.LessonPlayer_slide__pzZ6_{width:100%;max-width:1240px;margin:0 auto;min-height:100%;display:flex;align-items:safe center;justify-content:center}.LessonPlayer_bottomBar__zma27{flex:none;background:var(--ab-paper);border-top:1px solid var(--ab-line);position:relative;z-index:2}.LessonPlayer_progress__2nmcw{position:absolute;top:-1px;left:0;right:0;height:2px;background:var(--ab-line-soft);overflow:hidden}.LessonPlayer_progressFill__wLIxJ{width:100%;height:100%;background:var(--ab-ink);transform-origin:left center}.LessonPlayer_controls__Xgr4I{min-height:86px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;padding:15px 38px calc(15px + env(safe-area-inset-bottom))}.LessonPlayer_navBtn__C_FxO{display:inline-flex;gap:10px;align-items:center;justify-content:center;min-height:47px;border:1px solid var(--ab-line);border-radius:9px;background:var(--ab-paper);color:var(--ab-ink);padding:11px 18px;font-size:13px!important;font-weight:500!important;width:fit-content;transition:transform .12s,box-shadow .12s,background .18s}.LessonPlayer_navBtn__C_FxO:first-child{justify-self:start;border-color:transparent;padding-left:0}.LessonPlayer_navBtn__C_FxO:last-child{justify-self:end}.LessonPlayer_navBtnPrimary__MqLvN{background:var(--ab-link);border-color:var(--ab-link);color:#fff;padding:7px 10px 7px 20px}.LessonPlayer_navBtnPrimary__MqLvN:hover:not(:disabled){background:var(--ab-link-hover)}.LessonPlayer_navBtnGhost__hKacW{color:var(--ab-ink-soft)}.LessonPlayer_arrowWell__Flks5{display:grid;place-items:center;width:30px;height:30px;border-radius:6px;transition:transform .12s,box-shadow .12s}.LessonPlayer_navBtnPrimary__MqLvN .LessonPlayer_arrowWell__Flks5{box-shadow:2px 2px 5px rgba(0,0,0,.19),-2px -2px 5px rgba(255,255,255,.1)}.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtn__C_FxO:active:not(:disabled){transform:scale(.98)}.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtnPrimary__MqLvN:active .LessonPlayer_arrowWell__Flks5{transform:scale(.94);box-shadow:inset 2px 2px 4px rgba(0,0,0,.22),inset -2px -2px 4px rgba(255,255,255,.1)}.LessonPlayer_counter__j1LDV{display:flex;gap:5px;flex-wrap:wrap;justify-content:center;max-width:180px;font-size:12px;color:var(--ab-muted-deep);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.LessonPlayer_counter__j1LDV strong{font-weight:500;color:var(--ab-ink)}.LessonPlayer_counter__j1LDV small{flex-basis:100%;text-align:center;font-size:10px;margin-top:3px}.LessonPlayer_drawerOverlay__QnUWF{position:fixed;inset:0;background:rgba(24,24,27,.28);z-index:3}.LessonPlayer_drawer__KejaC{position:fixed;inset:0 auto 0 0;width:min(410px,90vw);z-index:4;display:flex;flex-direction:column;background:var(--ab-paper);border-right:1px solid var(--ab-line);box-shadow:15px 0 40px rgba(24,24,27,.1)}.LessonPlayer_drawerHeader__k8mbv{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 24px;border-bottom:1px solid var(--ab-line);flex:none}.LessonPlayer_drawerTitle___t0rs{font-size:13px;font-weight:500}.LessonPlayer_drawerBody__oI2e0{min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:15px 15px 32px}.LessonPlayer_drawerList__Dm6mK{list-style:none;padding:0;margin:0}.LessonPlayer_drawerItem__9f_r0{width:100%;display:flex;gap:14px;align-items:baseline;border:0;border-radius:7px;background:transparent;padding:12px;color:var(--ab-ink-soft);text-align:left;font-size:13px!important;line-height:1.55}.LessonPlayer_drawerItemActive__VX3Vt,.LessonPlayer_drawerItem__9f_r0:hover{background:var(--ab-paper-inset)}.LessonPlayer_drawerItemActive__VX3Vt{color:var(--ab-ink);box-shadow:inset 2px 0 var(--ab-ink)}.LessonPlayer_drawerItemIndex__Fd65e{font-size:10px;color:var(--ab-muted-deep);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;min-width:19px}.LessonPlayer_drawerItemLabel__E56f_{overflow-wrap:anywhere}.LessonPlayer_lessonNotes__oaM9x{border-top:1px solid var(--ab-line);margin:24px 12px 0;padding-top:22px;font-size:13px;line-height:1.75;color:var(--ab-ink-soft)}.LessonPlayer_lessonNotes__oaM9x h2{font-size:19px;color:var(--ab-ink);font-weight:500;margin:0 0 10px}.LessonPlayer_lessonNotes__oaM9x h3{font-size:14px;color:var(--ab-ink);font-weight:500;margin:22px 0 10px}.LessonPlayer_lessonNotes__oaM9x p{margin:10px 0}.LessonPlayer_lessonNotes__oaM9x label{display:flex;gap:12px;align-items:flex-start;margin:12px 0;cursor:pointer}.LessonPlayer_lessonNotes__oaM9x input{margin-top:5px;accent-color:var(--ab-ink)}.LessonPlayer_noteSmall__ZH7pn{font-size:11px;color:var(--ab-muted-deep)}.LessonPlayer_loading__ZREA8{display:flex;flex-direction:column;gap:10px;min-height:50vh;align-items:center;justify-content:center;color:var(--ab-ink);font-family:var(--font-onest),sans-serif;padding:35px;text-align:center}.LessonPlayer_loading__ZREA8 p{font-size:25px;letter-spacing:-.04em;margin:0}.LessonPlayer_loading__ZREA8 span{font-size:13px;color:var(--ab-muted-deep)}@media(hover:hover) and (pointer:fine){.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtnPrimary__MqLvN:hover:not(:disabled) .LessonPlayer_arrowWell__Flks5 svg{transform:translateX(2px)}.LessonPlayer_arrowWell__Flks5 svg{transition:transform .18s}}@media(max-width:760px){.LessonPlayer_topBar__MlGSX{padding:13px 18px;gap:12px}.LessonPlayer_crumb__Rl8uk{gap:9px}.LessonPlayer_crumbLesson__dDamk{font-size:12px}.LessonPlayer_crumbDay__xkoNY{font-size:10px}.LessonPlayer_exitBtn__n_2yA span{display:none}.LessonPlayer_stage__dEaSa{padding:25px 22px 34px}.LessonPlayer_controls__Xgr4I{padding:12px 18px calc(12px + env(safe-area-inset-bottom));gap:12px;min-height:85px}.LessonPlayer_navBtn__C_FxO{font-size:12px!important;gap:5px;padding:10px 12px;min-height:45px}.LessonPlayer_navBtnPrimary__MqLvN{padding:7px 8px 7px 12px}.LessonPlayer_arrowWell__Flks5{width:24px;height:28px}.LessonPlayer_counter__j1LDV{max-width:93px;font-size:11px}.LessonPlayer_counter__j1LDV small{font-size:9px}.LessonPlayer_drawerHeader__k8mbv{padding:18px}.LessonPlayer_slide__pzZ6_{align-items:flex-start}}@media(max-width:380px){.LessonPlayer_stage__dEaSa{padding:22px 17px 28px}.LessonPlayer_controls__Xgr4I,.LessonPlayer_topBar__MlGSX{padding-left:14px;padding-right:14px}.LessonPlayer_controls__Xgr4I{gap:8px}.LessonPlayer_counter__j1LDV small{display:none}.LessonPlayer_crumbLesson__dDamk{font-size:11px}}@media(min-width:761px) and (max-height:800px){.LessonPlayer_stage__dEaSa{padding-top:20px;padding-bottom:25px}.LessonPlayer_topBar__MlGSX{padding-top:13px;padding-bottom:13px}.LessonPlayer_controls__Xgr4I{min-height:76px;padding-top:11px;padding-bottom:11px}}.LessonPlayer_player__TIXEb[data-input-modality=keyboard] *{transition:none!important}@media(prefers-reduced-motion:reduce){.LessonPlayer_player__TIXEb *{transition:none!important;scroll-behavior:auto!important}.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtnPrimary__MqLvN:active .LessonPlayer_arrowWell__Flks5,.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtnPrimary__MqLvN:hover:not(:disabled) .LessonPlayer_arrowWell__Flks5 svg,.LessonPlayer_player__TIXEb[data-input-modality=pointer] .LessonPlayer_navBtn__C_FxO:active:not(:disabled){transform:none}}