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button.selected{border-color:var(--accent);background:var(--accent-soft)}.choice-list button span{color:var(--accent);font-weight:800}.record-button:disabled{opacity:.65;cursor:wait}.recording-error{color:#fda4af;font-size:12px;line-height:1.5}.recording-history{gap:9px;margin-top:18px;display:grid}.recording-history>strong{font-size:14px}.recording-history>small,.recording-history>p{color:var(--muted);margin:0;font-size:11px}.recording-item{border:1px solid var(--line);background:var(--shell);border-radius:12px;grid-template-columns:1fr auto;align-items:center;gap:6px 10px;padding:10px;display:grid}.recording-item span{color:var(--muted);grid-column:1/-1;font-size:10px}.recording-item audio{width:100%;min-width:0;height:35px}.recording-item button{color:var(--muted);cursor:pointer;background:0 0;border:0}.practice-pilot .record-button{height:82px}.practice-pilot .practice-translation{margin-bottom:14px}.practice-pilot .listen-original{margin-bottom:12px}.practice-recognition{border:1px solid var(--line);background:var(--shell);border-radius:13px;margin-top:14px;padding:12px}.practice-recognition-heading{justify-content:space-between;align-items:center;gap:12px;font-size:12px;display:flex}.practice-recognition-heading strong{color:var(--ink)}.practice-recognition-heading span{color:var(--accent);font-weight:750}.practice-recognition-text,.practice-recognition-placeholder{overflow-wrap:anywhere;margin:9px 0 0;line-height:1.55}.practice-recognition-text{font-size:16px}.practice-recognition-placeholder{color:var(--muted);font-size:12px}.practice-match-count{color:var(--muted);margin:11px 0 0;font-size:12px}.practice-word-diff{flex-wrap:wrap;gap:5px;margin-top:8px;display:flex}.practice-word{overflow-wrap:anywhere;border-radius:6px;padding:3px 6px;font-size:12px;line-height:1.45}.practice-word-correct{color:#12663d;background:#d7f2df}.practice-word-missing{color:#6c4900;background:#ffe7a8}.practice-word-extra{color:#16498d;background:#dbeaff}.practice-word-substitution{color:#8c2132;background:#ffdce1}.practice-pilot-timing{color:var(--muted);margin:9px 0 0;font-size:11px}.practice-pilot-export{color:var(--accent);cursor:pointer;background:0 0;border:0;margin-top:10px;padding:4px 0;font-size:12px}@media (width<=860px){.topbar{transition:height .18s,padding .18s,opacity .18s;position:relative}.brand-collapsed .topbar{opacity:0;pointer-events:none;border:0;height:0;padding-top:0;padding-bottom:0;overflow:hidden}.brand-collapsed .study-workspace{height:100dvh}.transcript-header span{text-overflow:ellipsis;white-space:nowrap;max-width:55vw;overflow:hidden}}@media (width<=520px){.line-meta{gap:4px}.line-top-actions{gap:0}.line-top-actions button{width:28px;height:28px;padding:5px}.transcript-line.active .playback-status{display:none}.sheet.note-sheet{padding-top:22px}}@media (width<=860px){.app,.app-shell{height:100dvh}.control-dock{min-height:calc(56px + env(safe-area-inset-bottom));padding:2px 6px calc(2px + env(safe-area-inset-bottom))}.control-dock .play-control,.control-dock .play-control:hover{width:40px;height:40px}.control-dock small{font-size:9px}.transcript-header{min-height:37px;padding:3px 2px 5px}.transcript-header p{font-variant-numeric:tabular-nums;font-size:15px}.transcript-line.active>p.line-translation{color:var(--muted);font-size:15px;line-height:1.5}}@media (width<=520px){.topbar{height:56px;padding:8px 12px}.brand-mark{width:31px;height:31px}.brand-copy strong{font-size:13px}.brand-copy span em{font-size:8px}.study-workspace{height:calc(100dvh - 56px)}.fixed-study-area{padding:6px 10px 0}.lesson-heading{min-height:32px;margin-bottom:4px}.lesson-heading h1{font-size:15.5px}.lesson-heading p{font-size:9px}.level-pill{padding:4px 7px;font-size:9px}.progress-row{margin:3px 2px;font-size:9px}.transcript-list{padding:5px 9px calc(16px + env(safe-area-inset-bottom))}.transcript-line{padding:11px 12px}.sentence-actions{margin-top:9px}.sentence-vocabulary{margin-top:8px;padding:8px}}@media (width<=520px) and (height<=760px){.topbar{height:44px;padding:5px 10px}.brand-mark{width:27px;height:27px}.brand-copy span em{display:none}.brand-copy strong{font-size:12px}.study-workspace{height:calc(100dvh - 44px)}.fixed-study-area{padding-top:4px}.lesson-heading{min-height:28px;margin-bottom:3px}.lesson-heading h1{font-size:14px}.lesson-heading p{font-size:8px}.player-card{width:min(100%,max(240px,177.778dvh - 915.556px));margin-inline:auto}.progress-row{margin-block:2px}.transcript-header{min-height:33px;padding-block:2px 3px}.transcript-line.active{padding-block:9px}.sentence-actions{margin-top:7px}.sentence-vocabulary{margin-top:6px;padding:7px}.control-dock{min-height:calc(54px + env(safe-area-inset-bottom));padding-top:1px;padding-bottom:calc(1px + env(safe-area-inset-bottom))}}@media (width<=860px){.lesson-heading{gap:8px}.lesson-heading p{letter-spacing:0}.level-pill{padding:3px 6px}.progress-row{gap:6px}.transcript-header{gap:8px}.transcript-header-actions{gap:4px}.transcript-header .favorites-trigger{min-height:28px;padding:4px 8px}}@media (width<=520px){.lesson-heading{min-height:28px;margin-bottom:2px}.lesson-heading p{font-size:8px;line-height:1.15}.lesson-heading h1{margin-top:1px}.level-pill{font-size:8px}.progress-row{margin:2px;font-size:8px}.transcript-header{min-height:31px;padding-block:1px 2px}.transcript-header p{font-size:13px}.transcript-list .transcript-line:not(.active){padding:12px 13px}.transcript-list .transcript-line:not(.active)>strong{font-size:14px}.control-dock{min-height:calc(50px + env(safe-area-inset-bottom));padding:1px 6px calc(1px + env(safe-area-inset-bottom))}.control-dock .play-control,.control-dock .play-control:hover{width:38px;height:38px}.control-dock small{font-size:8px}}.draggable-sheet{overscroll-behavior:contain;-webkit-overflow-scrolling:touch}.sheet-drag-handle{touch-action:none;place-items:center;height:20px;margin:-14px -4px 10px;display:grid}.sheet-drag-handle span{background:var(--muted);border-radius:999px;width:38px;height:4px}@supports (color:color-mix(in lab, red, red)){.sheet-drag-handle span{background:color-mix(in srgb, var(--muted) 45%, transparent)}}.practice-main-actions{flex-wrap:wrap;gap:8px;margin:14px 0 8px;display:flex}.practice-main-actions .listen-original{min-height:40px;margin:0}.practice-main-actions:not(.has-recording) .record-button{flex-basis:100%}.practice-main-actions.has-recording .record-button{border-style:solid;border-radius:10px;flex-direction:row;flex:100px;gap:6px;width:auto;height:40px;min-height:40px;padding:6px 10px}.practice-main-actions.has-recording .record-button svg{width:16px;height:16px}.practice-main-actions.has-recording .record-button span{font-size:11px}.recording-playback{align-items:center;gap:5px;min-width:0;display:inline-flex}.practice-main-actions .recording-playback{flex:115px}.recording-playback button{border:1px solid var(--line);min-height:40px;color:var(--ink);background:var(--shell);white-space:nowrap;cursor:pointer;border-radius:10px;padding:7px 9px;font-size:11px}.recording-playback small{color:var(--muted);white-space:nowrap;font-size:10px}.recording-playback audio{display:none}.practice-result{margin-top:10px}.practice-result-summary{align-items:center;gap:12px;display:flex}.practice-result-summary>strong{color:var(--accent);font-variant-numeric:tabular-nums;font-size:38px;font-weight:850;line-height:1}.practice-result-summary>span{color:var(--ink);font-size:13px;font-weight:800}.practice-result-summary small{color:var(--muted);margin-top:3px;font-size:11px;font-weight:500;display:block}.practice-result-caption{color:var(--muted);margin:9px 0 0;font-size:11px;line-height:1.45}.practice-all-words{margin-top:10px;font-size:11px}.practice-all-words summary{color:var(--accent);cursor:pointer}.practice-result-caveat{color:var(--muted-2);margin:9px 0 0;font-size:10px;line-height:1.45}.recording-history{gap:5px;margin-top:12px}.recording-latest-meta{color:var(--muted);justify-content:space-between;align-items:center;gap:8px;font-size:11px;display:flex}.recording-latest-meta button,.recording-older .recording-item>button{color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:11px}.recording-older summary{color:var(--accent);cursor:pointer;font-size:11px}.recording-older .recording-item{align-items:center;margin-top:7px;padding:8px}.recording-older .recording-item span{grid-column:1/-1}.note-sheet .deep-dive-meaning{margin:10px 0 16px}.deep-dive-meaning>span,.deep-dive-section h3{color:var(--accent);font-size:11px;font-weight:850}.deep-dive-meaning p{color:var(--ink);margin:7px 0 0;font-size:16px;line-height:1.55}.deep-dive-section{border-top:1px solid var(--line);margin:14px 0 0;padding-top:12px}.deep-dive-section h3{margin:0 0 9px}.deep-dive-section>p{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.deep-dive-expression,.deep-dive-example{border:1px solid var(--line);background:var(--shell);border-radius:12px;margin-top:8px;padding:10px 11px;position:relative}.deep-dive-expression>div{flex-wrap:wrap;align-items:baseline;gap:8px;display:flex}.deep-dive-expression strong,.deep-dive-example strong{color:var(--ink);font-size:14px;line-height:1.45}.deep-dive-expression small{color:var(--muted);font-size:10px}.deep-dive-expression p,.deep-dive-example p{color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.5}.deep-dive-expression .deep-dive-scene{color:var(--muted-2)}.deep-dive-expression button,.deep-dive-example button{color:var(--accent);cursor:pointer;background:0 0;border:0;margin-top:7px;padding:2px 0;font-size:11px}.deep-dive-actions{flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;display:flex}.deep-dive-actions button{border:1px solid var(--line);min-height:36px;color:var(--ink);background:var(--shell);cursor:pointer;border-radius:9px;align-items:center;gap:5px;padding:7px 10px;font-size:11px;display:inline-flex}.deep-dive-actions svg{width:14px;height:14px}.deep-dive-actions span{color:var(--accent);font-size:11px}.deep-dive-expression-actions{gap:16px;display:flex}.recognized-speech{border-left:3px solid var(--accent);background:var(--shell);border-radius:6px;margin-top:8px;padding:9px 11px}.recognized-speech>small{color:var(--accent);font-size:11px;font-weight:800}.recognized-speech .practice-recognition-text{margin:3px 0 0}.practice-data-note{color:var(--muted);margin-top:8px;font-size:11px}.practice-data-note summary{cursor:pointer}.practice-data-note p{line-height:1.55}.vocabulary-example{color:var(--ink);gap:2px;margin-top:8px;font-size:12px;display:grid}.vocabulary-example small{color:var(--muted);font-size:11px}.expression-favorite{color:var(--accent);cursor:pointer;background:0 0;border:0;margin-top:10px;padding:4px 0;font-size:11px}.expression-actions{align-items:center;gap:15px;display:flex}.expression-actions>button{color:var(--accent);cursor:pointer;background:0 0;border:0;margin-top:10px;padding:4px 0;font-size:11px}.pronunciation-help{color:var(--muted);margin-top:8px;font-size:11px}.pronunciation-help summary{color:var(--accent);cursor:pointer}.pronunciation-help p{margin:5px 0}.sentence-speaker{color:var(--muted);margin-top:5px;font-size:10px;display:block}.player-card>video{object-fit:contain;background:#000;width:100%;height:100%;display:block}.native-preview-scrubber{min-width:0;height:20px;accent-color:var(--accent);cursor:pointer;flex:1;margin:0}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}