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.cp-str-line{background:#ccc;height:3px}.cp-fret-dot{position:absolute;top:50%;transform:translate(-50%,-50%);width:20px;height:20px;border-radius:50%;background:var(--accent2);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--bg);font-weight:700}.cp-str-expect{font-size:12px;color:var(--text-dim);width:46px;text-align:center}.cp-str-det{font-size:12px;width:54px;text-align:center;color:var(--text-dim);min-height:18px}.cp-str-det.match{color:var(--green);font-weight:700}.cp-str-det.mismatch{color:var(--red)}.cp-str-icon{font-size:16px;width:22px;text-align:center;color:var(--text-dim)}.cp-strum-zone{margin-top:18px;padding:18px;border:2px dashed var(--border);border-radius:12px;text-align:center;transition:all .3s}.cp-strum-zone.active{border-color:var(--accent2);background:var(--accent2-glow)}.cp-strum-zone.success{border-color:var(--green);background:var(--green-glow)}.cp-strum-icon{font-size:32px;margin-bottom:6px}.cp-strum-label{font-size:12px;text-transform:uppercase;letter-spacing:2px;color:var(--text-dim)}.cp-score{display:flex;gap:24px;justify-content:center;margin-top:12px}.cp-score-num{font-family:"Instrument Serif",serif;font-size:36px;line-height:1}.cp-score-lbl{font-size:10px;text-transform:uppercase;letter-spacing:2px;color:var(--text-dim);margin-top:2px}.tr-status{display:flex;align-items:center;gap:24px;margin-bottom:20px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 20px}.tr-stat{text-align:center;flex:1}.tr-stat-num{font-family:"Instrument 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var(--border)}.tr-wrapper-hidden{display:none}.tr-container{min-height:100px;position:relative}.tr-highlight{position:absolute;pointer-events:none;background:#4ecdc440;border:2px solid #4ecdc4;border-radius:3px;box-shadow:0 0 8px #4ecdc466;transition:left .08s ease,top .08s ease,width .08s ease,height .08s ease}@media(max-width:480px){.header h1{font-size:30px}.omc-chord-big{font-size:60px}.omc-timer-wrap{width:180px;height:180px}.omc-timer-num{font-size:50px}.cp-neck-chord{font-size:38px}.chord-grid{grid-template-columns:repeat(3,1fr)}.tab-btn{font-size:11px;padding:12px 8px}}