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.lesson-header{z-index:10;min-height:0;box-shadow:none;pointer-events:none;background:0 0;border:0;margin:0;padding:0;display:block;position:absolute;inset:0}.phone-device[data-form-factor=phone][data-orientation=landscape] .lesson-header h1{display:none}.phone-device[data-form-factor=phone][data-orientation=landscape] .icon-button{color:#172033;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);pointer-events:auto;background:#ffffffe0;border:1px solid #9fabbd85;border-radius:50%;width:54px;height:54px;position:absolute;top:14px;box-shadow:0 8px 24px #0c142433}.phone-device[data-form-factor=phone][data-orientation=landscape] .lesson-header .icon-button:first-child{left:8px}.phone-device[data-form-factor=phone][data-orientation=landscape] .lesson-header .icon-button:last-child{right:8px}.phone-device[data-form-factor=phone][data-orientation=landscape] .icon-button svg{width:25px;height:25px}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack{z-index:8;pointer-events:none;grid-area:1/2;min-width:0;margin:0;display:block;position:relative}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .transcript-card,.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .translation-card{color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#04070db8;border:1px solid #ffffff29;border-radius:13px;width:min(88%,580px);min-height:0;max-height:64px;margin:0;position:absolute;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 7px 24px #00000042;height:auto!important}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .translation-card{max-height:88px;top:24px}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .transcript-card{bottom:52px}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .scroll-panel-viewport{height:auto;max-height:62px;padding:8px 14px;display:block;overflow:hidden}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .translation-card .scroll-panel-viewport{max-height:86px}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack p{color:#fff;text-align:center;text-shadow:0 1px 3px #000000b8;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:18px;font-weight:520;line-height:1.28;display:-webkit-box;overflow:hidden}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .translation-copy{-webkit-line-clamp:3;font-size:17px;font-weight:500}.phone-device[data-form-factor=phone][data-orientation=landscape] .subtitle-stack .scroll-indicator{display:none}.phone-device[data-form-factor=phone][data-orientation=landscape] .word-chip{color:#fff2df;background:#f36814c2;margin:0 1px;padding:0 5px 1px}.phone-device[data-form-factor=phone][data-orientation=landscape] .playback-controls{z-index:10;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffd6;border:1px solid #9fabbd80;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;gap:8px;width:64px;height:auto;margin:0;padding:8px;display:flex;position:absolute;top:56%;right:10px;transform:translateY(-50%);box-shadow:0 10px 30px #0c14243d}.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button{color:#172033;background:#ffffffc2;border:1px solid #c6cfdcbd;border-radius:15px;flex:0 0 48px;width:48px;height:48px;box-shadow:0 4px 12px #1720331a}.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button svg{width:23px;height:23px}.phone-device[data-form-factor=phone][data-orientation=landscape] .icon-button:hover,.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button:hover{background:#fffffffa}.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button.primary{margin-bottom:2px}.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button.primary,.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button.primary:hover{color:var(--primary-control-foreground);background:var(--primary-control-background);box-shadow:var(--primary-control-shadow)}.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button.loop.active,.phone-device[data-form-factor=phone][data-orientation=landscape] .control-button.loop.active:hover{color:var(--active-control-foreground);background:var(--active-control-background);box-shadow:var(--active-control-shadow)}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .device-screen{overflow:clip}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .lesson-screen{position:relative}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .video-card{z-index:1;aspect-ratio:auto;width:100%;height:100%;min-height:0;box-shadow:none;background:#05070b;border-radius:0;flex:auto;position:relative}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .video-card:after{z-index:2;content:"";pointer-events:none;background:linear-gradient(#04070da8,#0000 20% 72%,#04070dd1);position:absolute;inset:0}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .video-card iframe{width:100%;height:100%;position:absolute;inset:0}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .video-timeline{display:none}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack{z-index:8;pointer-events:none;margin:0;display:block;position:absolute;inset:0}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .transcript-card,.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .translation-card{color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#04070dad;border:1px solid #ffffff2e;border-radius:13px;width:min(69%,270px);min-height:0;max-height:82px;margin:0;position:absolute;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 7px 24px #00000042;height:auto!important}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .translation-card{top:142px}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .transcript-card{width:min(78%,300px);max-height:104px;bottom:138px}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .scroll-panel-viewport{height:auto;max-height:80px;padding:8px 13px;display:block;overflow:hidden}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .transcript-card .scroll-panel-viewport{max-height:102px}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack p{color:#fff;text-align:center;text-shadow:0 1px 3px #000000b8;-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0;font-size:16px;font-weight:520;line-height:1.3;display:-webkit-box;overflow:hidden}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .translation-copy{font-size:15px;font-weight:500}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .transcript-card p{font-size:20px;line-height:1.28}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .transcript-card .word-chip{min-height:36px;padding:2px 7px 3px}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .subtitle-stack .scroll-indicator{display:none}.phone-device[data-form-factor=phone][data-orientation=portrait-shorts] .word-chip{color:#fff2df;background:#f36814c2;margin:0 1px;padding:0 5px 1px}