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.fingering[data-v-0c2600d6]{color:#000;text-shadow:none}.button.black.highlight-orange .fingering[data-v-0c2600d6]{color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.5)}.accordion.rotated[data-v-0c2600d6]{transform:rotate(-90deg);transform-origin:center center}.accordion-container.mode-3d[data-v-0c2600d6]{perspective:800px;perspective-origin:center bottom}.accordion.perspective3d[data-v-0c2600d6]{transform:rotateX(55deg);transform-origin:center bottom;transform-style:preserve-3d}.accordion.perspective3d .row[data-v-0c2600d6]{gap:3mm}.accordion.perspective3d .button[data-v-0c2600d6]{width:6.5mm;height:6.5mm;font-size:6px;box-shadow:0 1mm 2mm #0006}.accordion.perspective3d .fingering[data-v-0c2600d6]{font-size:8px}@media(max-height:900px){.button[data-v-0c2600d6]{width:12mm;height:12mm;font-size:9px}.row[data-v-0c2600d6]{gap:4mm}.fingering[data-v-0c2600d6]{font-size:13px}}@media(max-height:800px){.button[data-v-0c2600d6]{width:11mm;height:11mm;font-size:8px}.row[data-v-0c2600d6]{gap:3.5mm}.fingering[data-v-0c2600d6]{font-size:12px}.accordion-container[data-v-0c2600d6]{padding-top:32px}}@media(max-height:700px){.button[data-v-0c2600d6]{width:10mm;height:10mm;font-size:7px;box-shadow:0 1.5mm 3mm #0000004d}.row[data-v-0c2600d6]{gap:3mm}.fingering[data-v-0c2600d6]{font-size:10px}.accordion-container[data-v-0c2600d6]{padding-top:28px}.rotate-btn[data-v-0c2600d6]{width:28px;height:28px}}@media(max-width:1200px){.button[data-v-0c2600d6]{width:12mm;height:12mm;font-size:9px}.row[data-v-0c2600d6]{gap:4mm}}@media(max-width:900px){.button[data-v-0c2600d6]{width:11mm;height:11mm;font-size:8px}.row[data-v-0c2600d6]{gap:3.5mm}.accordion-container[data-v-0c2600d6]{padding-top:30px}}@media(max-width:700px){.button[data-v-0c2600d6]{width:9mm;height:9mm;font-size:7px;box-shadow:0 1.5mm 2.5mm #0000004d}.row[data-v-0c2600d6]{gap:2.5mm}.fingering[data-v-0c2600d6]{font-size:10px}.rotate-btn[data-v-0c2600d6]{width:26px;height:26px}}@media(max-width:480px){.button[data-v-0c2600d6]{width:7mm;height:7mm;font-size:6px;box-shadow:0 1mm 2mm 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rgba(48,54,61,.8);z-index:100;gap:24px;flex-wrap:wrap}.header-left{display:flex;align-items:center;gap:14px;flex-shrink:0}.logo-img{height:40px;width:auto;display:block}.header-theory-link{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 14px;border-radius:999px;border:1px solid rgba(88,166,255,.28);background:#58a6ff1f;color:#dbeeff;text-decoration:none;font-size:13px;font-weight:700;letter-spacing:.04em;transition:all .2s ease}.header-theory-link:hover{border-color:#58a6ff94;background:#58a6ff38;color:#fff}.header-center{display:flex;align-items:center;gap:16px;flex:1;justify-content:center;flex-wrap:wrap;min-width:0}.header-right{flex-shrink:0;display:flex;align-items:center;gap:12px}.header-btn{background:#2196f326;border:1px solid rgba(48,54,61,.8);color:#58a6ff;height:36px;padding:0 16px;border-radius:6px;display:flex;align-items:center;gap:8px;cursor:pointer;transition:all .2s ease;font-weight:600;font-size:14px}.header-btn:hover{background:#2196f340;border-color:#2196f3}.header-btn.active{background:#2196f359;border-color:#2196f3;box-shadow:0 0 8px #2196f366}.header-btn .icon{font-size:16px}.main-grid{flex:1;display:flex;flex-direction:row;gap:0;overflow:hidden;min-height:0}.left-column{flex-shrink:1;flex-grow:0;width:240px;min-width:180px;padding:12px 8px;overflow:visible;border-right:1px solid rgba(48,54,61,.5);display:flex;flex-direction:column;align-items:center}.rhythm-wrapper{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%}.builder-toggle-btn{padding:8px 16px;background:#8b5cf633;border:1px solid rgba(139,92,246,.4);color:#a78bfa;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;transition:all .2s 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