.guitar-app{flex-direction:column;flex:1;display:flex;overflow:hidden}.tabs{border-bottom:1px solid var(--border);-webkit-overflow-scrolling:touch;flex-shrink:0;justify-content:center;display:flex;overflow:auto hidden}.tab{cursor:pointer;white-space:nowrap;font-family:var(--font-sans);color:var(--text-mute);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 16px;font-size:13px;font-weight:500;transition:color .15s,border-color .15s}.tab:hover{color:var(--text-dim)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.section{flex-direction:column;flex:1;min-height:0;display:flex}#scalesSection{gap:16px;padding:20px;overflow:hidden}.controls{flex-wrap:wrap;flex-shrink:0;justify-content:center;gap:12px;display:flex}.controls .ctrl{align-items:center;gap:6px;display:flex}.controls label{font-family:var(--font-sans);color:var(--text-dim);letter-spacing:.02em;font-size:12px;font-weight:500}.controls select{background:var(--bg-raised);color:var(--text);border:1px solid var(--border);font-family:var(--font-sans);cursor:pointer;border-radius:6px;padding:6px 10px;font-size:13px}.board-wrap{-webkit-overflow-scrolling:touch;flex:1;align-items:center;display:flex;overflow:auto hidden}.board-inner{flex-direction:column;width:100%;min-width:900px;height:100%;max-height:340px;display:flex}.scale-notes{text-align:center;font-family:var(--font-mono);color:var(--text-dim);letter-spacing:.03em;flex-shrink:0;font-size:13px}#scaleNotes{cursor:pointer}.scale-notes .root-note{color:#e8613c;font-weight:700}.scale-notes .note{color:var(--accent);font-weight:600}.scale-intervals{color:var(--text-mute);letter-spacing:.01em;font-size:11px}.inlay-row{flex-shrink:0;grid-template-columns:40px repeat(24,1fr);padding-bottom:2px;display:grid}.fretboard{background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex:1;grid-template-rows:auto repeat(6,1fr);grid-template-columns:40px repeat(24,1fr);min-height:0;display:grid;overflow:hidden}.fret{border-right:1px solid var(--border);border-bottom:1px solid var(--border);justify-content:center;align-items:center;min-height:0;display:flex;position:relative}.fret:nth-child(25n+1){border-right:2px solid var(--text-mute)}.inlay-cell{justify-content:center;align-items:center;display:flex}.fret-marker{background:var(--text-mute);opacity:.4;border-radius:50%;width:5px;height:5px}.inlay-cell.double{gap:6px}.fret-num{font-family:var(--font-mono);color:var(--text-mute);border-right:2px solid var(--text-mute);border-bottom:1px solid var(--border);background:var(--bg);justify-content:center;align-items:center;font-size:11px;display:flex}.string-label{font-family:var(--font-mono);color:var(--text-dim);background:var(--bg);border-right:2px solid var(--text-mute);border-bottom:1px solid var(--border);justify-content:center;align-items:center;font-size:11px;font-weight:600;display:flex}.dot{width:28px;height:28px;font-family:var(--font-mono);color:#fff;background:var(--accent);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:10px;font-weight:600;line-height:1;display:flex}.dot.root{background:#e8613c;transform:scale(1.1)}.dot.triad{box-shadow:0 0 0 2px #ffd166}[data-theme=light] .dot.triad{box-shadow:0 0 0 2px #000}.string-label .dot{width:24px;height:24px;font-size:9px}.string-label .dot.root{transform:scale(1.05)}.dot.dimmed{opacity:.2}.note-muted{font-family:var(--font-mono);color:var(--text-mute);opacity:.3;font-size:9px}.fret.fret-12{background:#6366f10d}#chordsSection{padding:20px;overflow-y:auto}.chords-grid{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.chord-card{cursor:pointer;background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex-direction:column;align-items:center;gap:6px;padding:14px 16px;transition:border-color .15s,box-shadow .15s;display:flex}.chord-card:hover{border-color:var(--border-hover);box-shadow:0 2px 8px #00000014}.chord-name{font-family:var(--font-sans);color:var(--text);font-size:15px;font-weight:600}.chord-markers{grid-template-columns:repeat(6,16px);display:grid}.cm{font-family:var(--font-mono);color:var(--text-mute);justify-content:center;align-items:center;height:14px;font-size:11px;display:flex}.chord-diagram{padding-left:14px}.chord-group-label{width:100%;font-family:var(--font-sans);color:var(--text-mute);text-transform:uppercase;letter-spacing:.06em;padding:4px 0 0;font-size:11px;font-weight:600}.chord-grid{border-top:1px solid var(--border);grid-template-columns:repeat(6,16px);display:grid;position:relative}.chord-grid.has-nut{border-top:3px solid var(--text)}.chord-fret-num{font-family:var(--font-mono);color:var(--text-mute);font-size:10px;position:absolute;top:5px;right:calc(100% + 3px)}.cg-cell{border-bottom:1px solid var(--border);background:linear-gradient(90deg, transparent calc(50% - .75px), var(--text-mute) calc(50% - .75px), var(--text-mute) calc(50% + .75px), transparent calc(50% + .75px));justify-content:center;align-items:center;height:22px;display:flex}.cg-dot{background:var(--accent);width:14px;height:14px;font-family:var(--font-mono);color:#fff;border-radius:50%;justify-content:center;align-items:center;font-size:7px;font-weight:700;line-height:1;display:flex}.cg-barre{background:var(--accent);border-radius:6px;height:12px;position:absolute}.chord-notes{grid-template-columns:repeat(6,16px);margin-top:2px;display:grid}.cn{font-family:var(--font-mono);color:var(--text-dim);justify-content:center;align-items:center;height:14px;font-size:9px;font-weight:600;display:flex}.cn-x{color:var(--text-mute);opacity:.4;font-weight:400}#triadsSection{align-items:center;gap:16px;padding:20px;overflow-y:auto}.triads-grid{flex-wrap:wrap;justify-content:center;gap:10px;width:100%;max-width:640px;display:flex}.triad-card{cursor:pointer;background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex-direction:column;align-items:center;gap:4px;min-width:72px;padding:10px 14px;transition:border-color .15s;display:flex}.triad-card:hover{border-color:var(--border-hover)}.triad-card.playing{border-color:var(--accent)}.triad-top{align-items:baseline;gap:6px;display:flex}.triad-name{font-family:var(--font-sans);color:var(--text);font-size:15px;font-weight:600}.triad-quality{font-family:var(--font-sans);color:var(--text-mute);font-size:10px}.triad-numeral{font-family:var(--font-mono);color:var(--accent);font-size:11px;font-weight:600}.triad-notes{font-family:var(--font-mono);color:var(--text-dim);font-size:11px}.triad-frets{font-family:var(--font-mono);color:var(--text-mute);gap:6px;font-size:10px;display:flex}.prog-play{background:var(--bg);width:26px;height:26px;color:var(--text-dim);border:1px solid var(--border);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:10px;transition:all .15s;display:flex}.prog-play:hover{border-color:var(--border-hover)}.prog-play.active{background:var(--accent);color:#fff;border-color:var(--accent)}#progressionsSection{gap:16px;padding:20px;overflow-y:auto}.prog-grid{flex-direction:column;gap:12px;width:100%;max-width:640px;margin:0 auto;display:flex}.prog-card{cursor:pointer;background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:6px;padding:14px 18px;transition:border-color .15s,box-shadow .15s;display:flex}.prog-card:hover{border-color:var(--border-hover);box-shadow:0 2px 8px #00000014}.prog-card.playing{border-color:var(--accent);box-shadow:0 2px 12px #6366f126}.prog-top{flex-wrap:wrap;align-items:baseline;gap:10px;display:flex}.prog-numerals{font-family:var(--font-mono);color:var(--text);letter-spacing:.02em;font-size:15px;font-weight:600}.prog-label{font-family:var(--font-sans);color:var(--text-mute);letter-spacing:.02em;font-size:12px;font-weight:500}.prog-chords{font-family:var(--font-mono);color:var(--accent);letter-spacing:.03em;font-size:13px;font-weight:500}.prog-extras{font-family:var(--font-mono);color:var(--text-dim);letter-spacing:.03em;font-size:12px;font-weight:500}.prog-extras-label{color:var(--text-mute);text-transform:uppercase;letter-spacing:.08em;margin-right:6px;font-size:10px}#rhythmSection{align-items:center;gap:16px;padding:20px;overflow-y:auto}.rhythm-transport{flex-wrap:wrap;flex-shrink:0;justify-content:center;align-items:center;gap:12px;display:flex}.rhythm-play{background:var(--accent);cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:background .15s;display:flex}.rhythm-play.active{background:#e8613c}.rhythm-play:before{content:"";border:8px solid #0000;border-left:13px solid #fff;border-right-width:0;width:0;height:0;margin-left:3px}.rhythm-play.active:before{background:#fff;border:none;width:12px;height:12px;margin-left:0}.bk-prog{flex-wrap:wrap;flex-shrink:0;justify-content:center;gap:8px;min-height:30px;display:flex}.bk-chord{background:var(--bg-raised);border:1px solid var(--border);font-family:var(--font-mono);color:var(--text-dim);cursor:pointer;border-radius:6px;align-items:center;gap:5px;padding:4px 8px 4px 10px;font-size:13px;transition:background .1s,color .1s,border-color .1s;display:inline-flex}.bk-chord:hover{border-color:var(--border-hover)}.bk-chord.current{background:var(--accent);border-color:var(--accent);color:#fff}.bk-x{opacity:.5;font-size:13px;line-height:1}.bk-chord:hover .bk-x{opacity:1}.bk-palette{flex-wrap:wrap;flex-shrink:0;justify-content:center;gap:6px;display:flex}.bk-add{border:1px dashed var(--border);font-family:var(--font-mono);color:var(--text-mute);cursor:pointer;background:0 0;border-radius:6px;padding:3px 9px;font-size:12px;transition:color .1s,border-color .1s}.bk-add:hover{color:var(--accent);border-color:var(--accent)}.metro-toggle{font-family:var(--font-sans);color:var(--text-dim);cursor:pointer;align-items:center;gap:4px;font-size:12px;display:flex}#bpmInput,#strumBpm,#arpBpm{background:var(--bg-raised);width:60px;color:var(--text);border:1px solid var(--border);font-family:var(--font-mono);text-align:center;border-radius:6px;padding:6px 8px;font-size:13px}.metro-beats{flex-shrink:0;justify-content:center;gap:16px;display:flex}.metro-dot{background:var(--bg-raised);border:2px solid var(--border);border-radius:50%;width:22px;height:22px;transition:background 80ms,border-color 80ms}.metro-dot.active{background:var(--accent);border-color:var(--accent)}.metro-dot.accent.active{background:#e8613c;border-color:#e8613c}.drum-header{flex-shrink:0;justify-content:center;gap:8px;display:flex}#drumPreset{background:var(--bg-raised);color:var(--text);border:1px solid var(--border);font-family:var(--font-sans);cursor:pointer;border-radius:6px;padding:6px 10px;font-size:13px}.drum-clear{background:var(--bg-raised);color:var(--text);border:1px solid var(--border);font-family:var(--font-sans);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px}.drum-grid{grid-template-columns:48px repeat(16,1fr);gap:2px;width:100%;max-width:580px;display:grid}.drum-label{font-family:var(--font-mono);color:var(--text-dim);justify-content:flex-end;align-items:center;height:28px;padding-right:6px;font-size:10px;font-weight:600;display:flex}.drum-pad{background:var(--bg-raised);border:1px solid var(--border);cursor:pointer;border-radius:4px;height:28px;transition:background 80ms,border-color 80ms}.drum-pad:hover{border-color:var(--border-hover)}.drum-pad.on{background:var(--accent);border-color:var(--accent)}.drum-pad.step-active{box-shadow:inset 0 0 0 2px #e8613c}.drum-pad.beat-odd{background:var(--bg)}.drum-pad.beat-odd.on{background:var(--accent);border-color:var(--accent)}.prog-scale-info{font-family:var(--font-mono);flex-wrap:wrap;flex-shrink:0;justify-content:center;gap:4px;font-size:13px;display:flex}.prog-degree{background:var(--bg-raised);border:1px solid var(--border);border-radius:6px;flex-direction:column;align-items:center;gap:1px;padding:4px 8px;display:flex}.prog-degree .pd-note{color:var(--text);font-size:14px;font-weight:600}.prog-degree .pd-num{color:var(--text-mute);font-size:10px}.prog-chord-span{cursor:default}.prog-chord-span:hover{text-decoration:underline}.chord-popup{z-index:100;background:var(--bg-raised);border:1px solid var(--border);pointer-events:none;border-radius:8px;flex-direction:column;align-items:center;gap:4px;padding:10px 14px;display:flex;position:fixed;box-shadow:0 4px 16px #00000026}.chord-popup .cp-name{font-family:var(--font-sans);color:var(--text);font-size:14px;font-weight:600}#strummingSection,#arpSection{gap:16px;padding:20px;overflow-y:auto}.pattern-grid{flex-direction:column;gap:12px;width:100%;max-width:640px;margin:0 auto;display:flex}.pat-card{cursor:pointer;background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:8px;padding:14px 18px;transition:border-color .15s,box-shadow .15s;display:flex}.pat-card:hover{border-color:var(--border-hover);box-shadow:0 2px 8px #00000014}.pat-card.playing{border-color:var(--accent);box-shadow:0 2px 12px #6366f126}.pat-top{flex-wrap:wrap;align-items:baseline;gap:10px;display:flex}.pat-name{font-family:var(--font-sans);color:var(--text);letter-spacing:.02em;font-size:15px;font-weight:600}.pat-label{font-family:var(--font-sans);color:var(--text-mute);letter-spacing:.02em;font-size:12px;font-weight:500}.strum-beats{justify-content:center;gap:0;display:flex}.strum-beat{flex-direction:column;align-items:center;gap:2px;width:32px;display:flex}.strum-arrow{justify-content:center;align-items:center;height:28px;font-size:20px;font-weight:700;display:flex}.strum-arrow.down{color:var(--accent)}.strum-arrow.up{color:#e8613c}.strum-arrow.rest{color:var(--text-mute);opacity:.3;font-size:14px}.strum-count{font-family:var(--font-mono);color:var(--text-mute);font-size:10px}.strum-count.on-beat{color:var(--text-dim);font-weight:700}.arp-sequence{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.arp-note{width:28px;height:28px;font-family:var(--font-mono);background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;font-size:10px;font-weight:600;display:flex}.arp-note.bass{background:#e8613c}.tab-view{gap:0;margin-top:4px;display:grid}.tab-label{font-family:var(--font-mono);color:var(--text-mute);justify-content:flex-end;align-items:center;height:18px;padding-right:6px;font-size:10px;font-weight:600;display:flex}.tab-cell{justify-content:center;align-items:center;height:18px;display:flex;position:relative}.tab-cell:after{content:"";background:var(--border);height:1px;position:absolute;top:50%;left:0;right:0}.tab-fret{z-index:1;background:var(--bg-raised);font-family:var(--font-mono);color:var(--accent);padding:0 3px;font-size:11px;font-weight:700;line-height:1;position:relative}.tab-fret.muted{color:var(--text-mute)}.tab-cell.active:after{background:var(--accent);opacity:.4;height:2px}.tab-cell.active .tab-fret{color:#e8613c}.exercise-section{border-top:1px solid var(--border);flex-direction:column;gap:8px;width:100%;max-width:640px;margin:0 auto;padding-top:16px;display:flex}.exercise-title{font-family:var(--font-sans);color:var(--text);font-size:15px;font-weight:600}.scale-tab{cursor:pointer;background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;gap:0;padding:8px 4px;transition:border-color .15s;display:grid}.scale-tab:hover{border-color:var(--border-hover)}.scale-tab.playing{border-color:var(--accent);box-shadow:0 2px 12px #6366f126}.se-head{flex-direction:column;align-items:center;gap:1px;padding:2px 0 6px;display:flex}.se-chord{font-family:var(--font-mono);color:var(--text);font-size:12px;font-weight:600}.se-num{font-family:var(--font-mono);color:var(--text-mute);font-size:10px}@media (width<=540px){#scalesSection{gap:12px;padding:12px}.board-inner{min-width:750px;max-height:260px}.dot{width:22px;height:22px;font-size:9px}.fret-num{font-size:10px}#chordsSection{padding:12px}.chords-grid{gap:10px}.chord-card{padding:10px 12px}#progressionsSection{gap:12px;padding:12px}.prog-card{padding:10px 14px}#rhythmSection{gap:12px;padding:12px}.drum-grid{gap:1px}.drum-pad{height:24px}.drum-label{font-size:9px}.iq-grid{grid-template-columns:repeat(3,1fr)}.cof-wrap{max-width:320px}}.section-explainer{font-family:var(--font-sans);color:var(--text-dim);background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;flex-shrink:0;width:100%;max-width:640px;margin:0 auto;padding:10px 14px;font-size:12px;line-height:1.55}.section-explainer summary{cursor:pointer;color:var(--text);align-items:center;gap:6px;font-weight:600;list-style:none;display:flex}.section-explainer summary::-webkit-details-marker{display:none}.section-explainer summary:before{content:"▸";color:var(--text-mute);font-size:11px;transition:transform .15s}.section-explainer[open] summary:before{transform:rotate(90deg)}.section-explainer p{margin:0}.section-explainer summary+p{margin-top:6px}.section-explainer p+p{margin-top:4px}.section-explainer strong{color:var(--text);font-weight:600}#intervalsSection{justify-content:center;align-items:center;gap:20px;padding:20px}.iq-wrap{flex-direction:column;align-items:center;gap:20px;width:100%;max-width:480px;display:flex}.iq-header{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;display:flex}.iq-btn{cursor:pointer;font-family:var(--font-sans);background:var(--accent);color:#fff;border:none;border-radius:6px;padding:8px 16px;font-size:13px;font-weight:600;transition:opacity .15s}.iq-btn:disabled{opacity:.4;cursor:default}.iq-btn:hover:not(:disabled){opacity:.85}.iq-grid{grid-template-columns:repeat(4,1fr);gap:8px;width:100%;display:grid}.iq-choice{cursor:pointer;font-family:var(--font-mono);background:var(--bg-raised);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:12px 8px;font-size:14px;font-weight:600;transition:border-color .15s,background .15s}.iq-choice:hover:not(:disabled){border-color:var(--border-hover)}.iq-choice:disabled{cursor:default;opacity:.6}.iq-choice.correct{color:#fff;opacity:1;background:#4ecb71;border-color:#4ecb71}.iq-choice.wrong{color:#fff;opacity:1;background:#e8613c;border-color:#e8613c}.iq-feedback{font-family:var(--font-sans);text-align:center;min-height:24px;font-size:15px;font-weight:600}.iq-feedback.correct{color:#4ecb71}.iq-feedback.wrong{color:#e8613c}.iq-score{font-family:var(--font-mono);color:var(--text);text-align:center;font-size:20px;font-weight:700}#cagedSection{gap:16px;padding:20px;overflow:hidden}.caged-legend{flex-shrink:0;justify-content:center;gap:8px;display:flex}.caged-chip{font-family:var(--font-sans);color:#fff;letter-spacing:.03em;border-radius:12px;padding:3px 10px;font-size:12px;font-weight:700}#circleSection{align-items:center;gap:16px;padding:20px;overflow-y:auto}.cof-wrap{flex-shrink:0;width:100%;max-width:420px}#cofSvg{width:100%;height:auto}.cof-seg:hover{opacity:.85}.cof-info{width:100%;max-width:480px}.cof-chords{flex-wrap:wrap;justify-content:center;gap:4px;display:flex}.cof-chord{background:var(--bg-raised);border:1px solid var(--border);border-radius:6px;flex-direction:column;align-items:center;gap:1px;padding:6px 10px;display:flex}.cof-cn{font-family:var(--font-mono);color:var(--text);font-size:14px;font-weight:600}.cof-num{font-family:var(--font-mono);color:var(--text-mute);font-size:10px}.cof-adjacent{text-align:center;font-family:var(--font-sans);color:var(--text-dim);margin-top:8px;font-size:13px}.cof-hint{text-align:center;font-family:var(--font-sans);color:var(--text-mute);font-size:14px}#tuningSection{justify-content:center;align-items:center;padding:20px}.tuner-wrap{flex-direction:column;align-items:center;gap:20px;width:100%;max-width:420px;display:flex}.tuning-pick{align-items:center;gap:10px;width:100%;display:flex}.tuning-pick label{color:var(--text-dim);white-space:nowrap;font-size:14px;font-weight:600}.tuning-pick select{background:var(--bg-raised);color:var(--text);border:1px solid var(--border);font-family:var(--font-sans);cursor:pointer;border-radius:6px;flex:1;padding:6px 10px;font-size:13px}.tuner-note{font-family:var(--font-mono);color:var(--text);text-align:center;min-height:64px;font-size:64px;font-weight:700;line-height:1}.tuner-note.in-tune{color:#4ecb71}.tuner-meter{background:var(--bg-raised);border:1px solid var(--border);border-radius:8px;width:100%;height:56px;position:relative;overflow:hidden}.tuner-center{background:var(--text-mute);opacity:.5;width:2px;margin-left:-1px;position:absolute;top:6px;bottom:6px;left:50%}.tuner-needle{background:var(--accent);border-radius:2px;width:4px;margin-left:-2px;transition:left 80ms ease-out,background 80ms;position:absolute;top:4px;bottom:4px;left:50%}.tuner-needle.in-tune{background:#4ecb71}.tuner-cents{font-family:var(--font-mono);color:var(--text-dim);min-height:18px;font-size:14px}.tuner-strings{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.tuner-string{background:var(--bg-raised);border:1px solid var(--border);font-family:var(--font-mono);color:var(--text-dim);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:14px;font-weight:600;transition:all .1s}.tuner-string:hover{border-color:var(--accent);color:var(--accent)}.tuner-string.playing{background:var(--accent);border-color:var(--accent);color:#fff}.tuner-string.near{border-color:var(--accent);color:var(--accent)}.tuner-string.in-tune{color:#fff;background:#4ecb71;border-color:#4ecb71}.tuner-hint{font-family:var(--font-sans);color:var(--text-mute);text-align:center;font-size:13px}.tuning-info{width:100%;color:var(--text-dim);font-size:13px}.tuning-info summary{cursor:pointer;color:var(--text-dim);padding:8px 0;font-weight:600}.tuning-info-body{flex-direction:column;gap:8px;padding:8px 0;display:flex}.tuning-info-body p{margin:0;line-height:1.5}.tuning-info-body strong{color:var(--text)}