._workspace_2a9uh_1{max-width:1440px;margin:0 auto;padding:28px 40px 32px}._header_2a9uh_2{justify-content:space-between;align-items:center;gap:24px;padding-bottom:24px;display:flex}._header_2a9uh_2 h1{align-items:baseline;gap:16px;margin:12px 0 0;font-size:26px;font-weight:500;display:flex}._header_2a9uh_2 h1>span{color:var(--muted);font-variant-numeric:tabular-nums;font-size:14px}._textLink_2a9uh_5,._headerLinks_2a9uh_5 a{color:var(--muted);align-items:center;gap:8px;min-height:24px;font-size:12px;text-decoration:none;display:inline-flex}._textLink_2a9uh_5:hover,._headerLinks_2a9uh_5 a:hover{color:var(--accent)}._headerLinks_2a9uh_5{gap:24px;display:flex}._tabs_2a9uh_8{width:100%}._tabs_2a9uh_8>._tabContainer_2a9uh_9{border-bottom:1px solid var(--line);background:0 0;border-radius:0;justify-content:flex-start;width:100%;padding:0 0 12px}._tabs_2a9uh_8 ._tabList_2a9uh_10{background:0 0;border-radius:0;flex-grow:0;gap:8px;width:max-content;min-width:0}._tabList_2a9uh_10 [role=tab]{border-radius:var(--radius);flex:none;gap:8px;width:auto;min-width:94px;padding:0 16px;font-size:13px;display:inline-flex}._tabList_2a9uh_10 [aria-selected=true]{background:var(--surface);color:var(--accent)}._workspace_2a9uh_1 button{border-radius:var(--radius)}._workArea_2a9uh_14{grid-template-columns:minmax(0,1fr) 224px;gap:40px;padding-top:20px;display:grid}._mainArea_2a9uh_15{min-width:0}._mainArea_2a9uh_15 [role=tabpanel]{padding:0}._sidebar_2a9uh_17{border-left:1px solid var(--line);flex-direction:column;gap:26px;padding-left:28px;display:flex}._sidebar_2a9uh_17 h2{margin:12px 0;font-size:16px;font-weight:500}._sideTitle_2a9uh_19{color:var(--muted);margin:0 0 10px;font-size:11px;font-weight:400}._muted_2a9uh_20{color:var(--muted);font-size:12px;line-height:1.7}._success_2a9uh_21{color:var(--success);font-size:12px}._timer_2a9uh_22{color:var(--ink);font-variant-numeric:tabular-nums;font-size:32px;font-weight:400;line-height:1.5;display:block}._timerActions_2a9uh_23{gap:4px;margin-top:10px;display:flex}._timerActions_2a9uh_23 button{min-width:0;padding:0 12px;font-size:12px}._saved_2a9uh_25{min-height:18px;color:var(--success);margin-top:8px;font-size:11px;display:block}._notesInput_2a9uh_26{resize:vertical;background:var(--surface);width:100%;min-height:128px;box-shadow:none;border:1px solid var(--line);font-size:13px;line-height:1.8}._warning_2a9uh_27{background:var(--yellow-soft);padding:12px 16px;font-size:13px}._sheet_2a9uh_28{background:var(--surface-tertiary)}._sheetToolbar_2a9uh_29{height:44px;color:var(--muted);justify-content:space-between;align-items:center;padding:0 12px 0 20px;font-size:11px;display:flex}._actions_2a9uh_30{align-items:center;gap:8px;display:flex}._sheetToolbar_2a9uh_29 ._actions_2a9uh_30{gap:0}._zoomLabel_2a9uh_32{text-align:center;font-variant-numeric:tabular-nums;width:42px;font-size:10px}._originalLink_2a9uh_33{width:40px;height:40px;color:var(--muted);justify-content:center;align-items:center;display:inline-flex}._paperViewport_2a9uh_34{overscroll-behavior:contain;height:max(380px,100svh - 326px);max-height:800px;padding:12px 24px 24px;overflow:auto;container-type:size}._paperSizer_2a9uh_35{width:max-content;min-width:100%;height:calc(min(100cqh, 100cqw * 1080 / 760) * var(--paper-scale));justify-content:center;align-items:flex-start;display:flex}._paperSizer_2a9uh_35 img{object-fit:contain;width:auto;max-width:none;height:100%;box-shadow:var(--panel-shadow);flex-shrink:0;display:block}._lessonFooter_2a9uh_37{border-top:1px solid var(--line);justify-content:space-between;align-items:center;margin-top:24px;padding-top:18px;display:flex}._quiz_2a9uh_38{background:var(--surface);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:24px;min-height:max(480px,100svh - 282px);padding:56px 28px;display:flex}._quiz_2a9uh_38 h2{margin:0;font-size:26px;font-weight:400;line-height:1.6}._quiz_2a9uh_38 p{margin:0}._quizCount_2a9uh_41{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px}._answers_2a9uh_42{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}._answer_2a9uh_42{min-width:60px;min-height:52px;font-size:18px}._answer_2a9uh_42._correct_2a9uh_44{background:var(--success);color:var(--surface);opacity:1}._answer_2a9uh_42._incorrect_2a9uh_45{background:var(--accent-soft);color:var(--accent);opacity:1}._answerFeedback_2a9uh_46{min-height:114px;color:var(--muted);flex-direction:column;align-items:center;gap:20px;font-size:13px;display:flex}._resultNumbers_2a9uh_47{gap:48px;display:flex}._resultNumbers_2a9uh_47>span{color:var(--muted);flex-direction:column;gap:8px;font-size:12px;display:flex}._resultNumbers_2a9uh_47 strong{color:var(--ink);font-size:32px;font-weight:400}._find_2a9uh_50{background:var(--surface);min-height:max(480px,100svh - 282px);padding:32px 24px}._findTop_2a9uh_51{justify-content:space-between;align-items:center;gap:24px;display:flex}._targetNote_2a9uh_52{margin:0 0 32px;font-size:60px;font-weight:400;line-height:1.2}._findTools_2a9uh_53{flex-direction:column;align-items:flex-end;gap:12px;font-size:12px;display:flex}._stringChoice_2a9uh_54{flex-wrap:wrap;gap:8px;margin-bottom:24px;display:flex}._stringChoice_2a9uh_54 button{min-width:0;font-size:12px}._neckScroll_2a9uh_56{width:100%;overflow-x:auto}._neck_2a9uh_56{min-width:650px;padding:0 0 20px}._fretNumbers_2a9uh_58,._stringRow_2a9uh_58{grid-template-columns:52px repeat(13,minmax(0,1fr));align-items:center;display:grid}._fretNumbers_2a9uh_58{height:32px;color:var(--muted);text-align:center;font-size:10px}._stringRow_2a9uh_58>span{text-align:center;color:var(--muted);font-size:11px}._fret_2a9uh_58{border-right:1px solid var(--line);isolation:isolate;border-radius:0;width:100%;min-width:0;height:38px;min-height:38px;padding:0;font-size:12px;position:relative;overflow:visible}._fret_2a9uh_58:before{content:"";background:var(--line);z-index:-1;height:1px;position:absolute;top:50%;left:0;right:0}._stringRow_2a9uh_58[data-active=false]{opacity:.42}._stringRow_2a9uh_58[data-active=true] ._fret_2a9uh_58:before{background:var(--muted)}._fret_2a9uh_58:nth-child(2){border-right:3px solid var(--ink)}._fret_2a9uh_58[aria-pressed=true]{background:var(--accent-soft);color:var(--accent)}._fret_2a9uh_58:hover:not(:disabled){background:var(--canvas)}._fretMarker_2a9uh_68{background:var(--line-strong);border-radius:50%;width:4px;height:4px}._findBottom_2a9uh_69{justify-content:space-between;align-items:center;gap:12px;min-height:60px;margin-top:16px;font-size:13px;display:flex}@media (max-width:1000px){._workspace_2a9uh_1{padding:24px}._workArea_2a9uh_14{grid-template-columns:minmax(0,1fr) 184px;gap:20px}._sidebar_2a9uh_17{padding-left:18px}._quiz_2a9uh_38{padding:32px 20px}}@media (max-width:760px){._header_2a9uh_2{flex-wrap:wrap}._workArea_2a9uh_14{grid-template-columns:minmax(0,1fr)}._sidebar_2a9uh_17{border-left:0;border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:24px 0 0;display:grid}._sidebar_2a9uh_17 section:last-child{grid-column:1/-1}._findTop_2a9uh_51{gap:12px}._find_2a9uh_50{padding:24px 16px}._findBottom_2a9uh_69{align-items:flex-start}._quiz_2a9uh_38 h2{font-size:22px}._paperViewport_2a9uh_34{padding-inline:12px}}