:root{--bg: #111827;--surface: #1f2937;--surface2: #374151;--accent: #6366f1;--root-clr: #fbbf24;--note-clr: #22d3ee;--text: #f3f4f6;--text-dim: #9ca3af;--border: #374151}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body:has(.fretboard-zoomed) .github-corner{display:none}.github-corner{position:fixed;top:12px;right:16px;z-index:9999;color:var(--text-dim);display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--surface2);border:1px solid var(--border);transition:color .15s,border-color .15s}.github-corner:hover{color:var(--text);border-color:var(--text-dim)}body{background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;min-height:100vh;padding:16px}.app-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.app-icon{width:48px;height:48px;flex-shrink:0}h1{font-size:1.6rem;font-weight:700;margin-bottom:0;background:linear-gradient(120deg,var(--root-clr),var(--note-clr));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2,h3{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:10px}.app-container{max-width:1300px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.controls{display:flex;flex-wrap:wrap;gap:14px;padding:4px 0}.control-group{display:flex;flex-direction:column;gap:4px}.control-group label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim)}select,input[type=number]{background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 10px;font-size:.88rem;outline:none;cursor:pointer;transition:border-color .15s}select:focus,input[type=number]:focus{border-color:var(--accent)}input[type=number]{width:72px}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none}input[type=number]{-moz-appearance:textfield}.ctrl-stepper{display:flex;align-items:stretch}.ctrl-stepper select,.ctrl-stepper input[type=number]{border-radius:0;border-left:none;border-right:none;text-align:center}.ctrl-btn{background:var(--surface2);color:var(--text);border:1px solid var(--border);font-size:1rem;cursor:pointer;width:32px;display:flex;align-items:center;justify-content:center;padding:0;transition:border-color .15s,background .15s;flex-shrink:0}.ctrl-btn:first-child{border-radius:6px 0 0 6px}.ctrl-btn:last-child{border-radius:0 6px 6px 0}.ctrl-btn:hover{border-color:var(--accent);background:#6366f126}.scale-notes{padding:12px 0 4px;border-top:1px solid var(--border)}.scale-notes-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;overflow-x:auto}.scale-notes-sep{width:1px;align-self:stretch;background:var(--border);flex-shrink:0;margin:0 4px}.scale-notes-checks{display:flex;flex-direction:column;gap:6px}.scale-notes-checks h2{margin-bottom:0}.scale-notes-row .note-checkboxes{margin-bottom:0;flex-wrap:nowrap}.note-checkboxes{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;align-items:flex-start}.note-check{display:flex;flex-direction:column;align-items:center}.note-check input[type=checkbox]{display:none}.note-check label{display:flex;flex-direction:column;align-items:center;gap:2px;cursor:pointer;width:48px;padding:7px 4px;border-radius:7px;border:2px solid var(--border);background:var(--surface2);transition:border-color .15s,background .15s,box-shadow .1s,transform .1s;-webkit-user-select:none;user-select:none}.note-check label:hover{border-color:var(--note-clr)}.note-check input:checked+label{border-color:var(--note-clr);background:#22d3ee1f}.note-check.root input:checked+label{border-color:var(--root-clr);background:#fbbf241f}.note-check.root label{cursor:default}.note-check.note-playing label{box-shadow:0 0 0 3px var(--note-clr);transform:scale(1.08)}.note-check.root.note-playing label{box-shadow:0 0 0 3px var(--root-clr)}.note-name{font-size:.9rem;font-weight:700;font-family:monospace}.interval-label{font-size:.62rem;color:var(--text-dim);font-family:monospace}.note-check input:checked+label .interval-label{color:var(--note-clr)}.note-check.root input:checked+label .note-name{color:var(--root-clr)}.note-check.root input:checked+label .interval-label{color:var(--root-clr)}.step-size{font-size:.58rem;font-family:monospace;color:var(--accent);white-space:nowrap;margin-top:3px}.play-scale-btn{align-self:flex-start;background:transparent;color:var(--text-dim);border:1px solid var(--border);border-radius:6px;height:28px;display:flex;align-items:center;gap:5px;justify-content:center;cursor:pointer;padding:0 10px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;transition:color .15s,border-color .15s}.play-scale-btn:hover{color:var(--text);border-color:var(--note-clr)}.fretboard-section{padding:4px 0}.fretboard-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.fretboard-header h2{margin-bottom:0}.zoom-btn{margin-left:auto;background:transparent;color:var(--text-dim);border:1px solid var(--border);border-radius:6px;height:28px;display:flex;align-items:center;gap:5px;justify-content:center;cursor:pointer;padding:0 8px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;transition:color .15s,border-color .15s}.zoom-btn:hover{color:var(--text);border-color:var(--text-dim)}.fretboard-zoomed{position:fixed;top:0;right:0;bottom:0;left:0;z-index:999;background:var(--bg);display:flex;flex-direction:column;padding:16px;overflow:hidden}.fretboard-zoomed .fretboard-scroll{flex:1;overflow:auto;display:flex;align-items:center}.fretboard-zoomed .fretboard-scroll svg{width:100%;height:auto;min-width:600px}.fretboard-scroll{overflow-x:auto}.tuning-section{margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--border)}.tuning-row{display:flex;align-items:center;gap:8px;overflow-x:auto;padding-bottom:2px}.tuning-global{display:flex;flex-direction:column;align-items:center;gap:3px;flex-shrink:0}.tuning-label{font-size:.62rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);white-space:nowrap}.tuning-global-btns{display:flex;gap:4px}.tuning-global button{background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:1rem;cursor:pointer;transition:border-color .15s,background .15s;width:44px;height:44px;display:flex;align-items:center;justify-content:center;padding:0}.tuning-global button:hover{border-color:var(--accent);background:#6366f126}.tuning-string{display:flex;flex-direction:column;align-items:center;gap:3px;flex-shrink:0}.tuning-string label{font-size:.62rem;color:var(--text-dim);font-family:monospace;white-space:nowrap}.tuning-string select{width:62px;font-size:.8rem;padding:4px 6px;height:44px}.tuning-presets{display:flex;flex-direction:column;gap:4px;flex-shrink:0;margin-left:4px;padding-left:12px;border-left:1px solid var(--border)}.preset-row{display:flex;gap:4px}.preset-btn{background:var(--surface2);color:var(--text-dim);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:.75rem;cursor:pointer;white-space:nowrap;transition:border-color .15s,color .15s,background .15s}.preset-btn:hover{border-color:var(--accent);color:var(--text);background:#6366f126}.preset-btn.active{border-color:var(--note-clr);color:var(--note-clr);background:#22d3ee1f}.tuning-fretboard-opts{display:flex;gap:8px;flex-shrink:0;margin-left:4px;padding-left:12px;border-left:1px solid var(--border);align-items:flex-end}.app-footer{padding:1.5rem 0 .5rem;font-size:.8rem;color:var(--text-dim, #888)}.app-footer a{color:var(--accent, #6366f1);text-decoration:none}.app-footer a:hover{text-decoration:underline}.footer-credit{text-align:right;margin-top:10px}.interval-legend{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;padding:10px 0;border-top:1px solid var(--border)}.legend-heading{font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-right:4px;flex-shrink:0}.legend-item{display:inline-flex;gap:4px;align-items:baseline}.legend-abbr{font-family:monospace;font-size:.72rem;font-weight:700;color:var(--note-clr)}.legend-root .legend-abbr{color:var(--root-clr)}.legend-name{font-size:.68rem;color:var(--text-dim)}.scale-compare{padding:10px 0;border-top:1px solid var(--border);margin-top:4px}.sct-wrap{overflow-x:auto}.sct{border-collapse:collapse;font-family:monospace;font-size:.7rem;white-space:nowrap;width:100%}.sct th,.sct td{padding:3px 4px;border:1px solid rgba(55,65,81,.5);text-align:center}.sct-corner{min-width:130px;text-align:left;background:transparent;border:none}.sct-sh{text-align:left;color:var(--text-dim);font-weight:500;padding-left:6px;font-size:.68rem}.sct-ih{font-size:.65rem;font-weight:700;color:var(--text-dim);min-width:28px;background:var(--surface)}.sct-ih.col-active{color:var(--note-clr)}.sct-ih.col-root{color:var(--root-clr)}.sct-row:hover td,.sct-row:hover th{background:#ffffff08}.sct-current .sct-sh{color:var(--text);font-weight:700}.sct-current td,.sct-current th{background:#6366f11a}.sct-cell{font-size:.6rem}.sct-root{color:var(--root-clr)}.sct-match{color:var(--note-clr)}.sct-present{color:#4b5563}.chords-section{padding:10px 0;border-top:1px solid var(--border)}.chords-empty{font-size:.78rem;color:var(--text-dim);font-style:italic}.chords-grid{display:flex;flex-wrap:wrap;gap:12px;padding-top:4px}.chord-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;align-items:center;gap:4px;min-width:80px;transition:border-color .15s,background .15s,transform .1s;cursor:pointer}.chord-card:hover{border-color:var(--accent);background:#6366f114}.chord-card.chord-playing{border-color:var(--accent);background:#6366f129;transform:scale(1.04)}.chord-roman{font-size:.68rem;font-weight:600;color:var(--text-dim);font-family:monospace}.chord-symbol{font-size:1.15rem;font-weight:700;color:var(--text);font-family:monospace;line-height:1}.chord-quality{font-size:.6rem;color:var(--text-dim);text-transform:capitalize}.chord-notes{font-size:.65rem;color:var(--note-clr);font-family:monospace;white-space:nowrap}