:root{font-family:Arial,Helvetica,sans-serif;color:#14263d;background:#f2f5fa;font-synthesis:none;--blue:#005ac8;--navy:#102c51}*{box-sizing:border-box}body{margin:0}main{max-width:1180px;margin:auto;padding:30px 36px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #d5deea;padding-bottom:24px}.brand{display:flex;align-items:center;gap:12px;color:var(--navy);font-size:17px;font-weight:800;letter-spacing:2px;text-decoration:none}.mark{background:var(--blue);color:white;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:25px;font-family:Georgia,serif;letter-spacing:0}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:#55708e}.heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin:30px 0 24px}h1{font-size:clamp(27px,3.5vw,38px);letter-spacing:-1px;margin:0 0 10px;font-weight:750}.heading p{margin:0;color:#52667e;font-size:16px;line-height:1.5}.tabs{display:flex;padding:5px;background:#e3eaf3;border-radius:12px}button,select{font:inherit}button{cursor:pointer}button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #f29c28;outline-offset:3px}.tabs button{border:0;background:transparent;color:#4b6079;padding:13px 22px;border-radius:8px;font-weight:700}.tabs button[aria-selected=true]{background:var(--blue);color:white;box-shadow:0 3px 8px #005ac820}section{background:white;border:1px solid #dbe3ee;border-radius:16px;overflow:hidden;box-shadow:0 10px 40px #18395b06}.controls{padding:24px 28px;display:grid;grid-template-columns:1fr 1.5fr 1.7fr 1.2fr;gap:18px;background:#f9fbfe;border-bottom:1px solid #e2e8f1}label{font-size:14px;font-weight:700;color:#4b6078;display:flex;flex-direction:column;gap:9px}select{width:100%;min-height:46px;border:1px solid #cbd7e5;border-radius:7px;background:white;color:#172e49;padding:8px 30px 8px 12px;font-size:16px}.result-heading{display:flex;justify-content:space-between;align-items:center;padding:26px 28px 14px;gap:16px}h2{font-size:27px;margin:6px 0 0;letter-spacing:-.5px}.listen,#print{border:1px solid #cbd8e8;background:white;color:var(--blue);padding:11px 17px;border-radius:8px;font-size:14px;font-weight:700}.listen:disabled{opacity:.55}.note-list{display:flex;gap:8px;flex-wrap:wrap;padding:0 28px 20px}.note{border-radius:6px;background:#eef3f9;min-width:39px;padding:8px 10px;text-align:center;font-weight:700;font-size:15px}.note:first-child{background:var(--blue);color:white}.diagram-wrap{padding:6px 22px 0;overflow:auto}#diagram svg{width:100%;height:auto;display:block;min-width:550px}#diagram.chord svg{width:230px;min-width:0;max-width:100%;margin:auto}.legend{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:20px;font-size:14px;color:#51667d;padding:12px 24px 24px}.legend span{display:flex;align-items:center;gap:7px}.dot{width:12px;height:12px;border-radius:50%;display:inline-block}.root{background:var(--blue)}.other{background:#dce9fb;border:1px solid #9ab9df}.bottom{display:flex;gap:20px;align-items:center;justify-content:space-between;margin:0 28px;padding:18px 0 22px;border-top:1px solid #e2e8f1}.bottom p{max-width:720px;font-size:14px;line-height:1.6;margin:0;color:#52667e}#print{white-space:nowrap;color:#4b6078}footer{display:flex;justify-content:space-between;gap:12px;color:#60738a;font-size:12px;padding-top:20px;line-height:1.5}[hidden]{display:none!important}@media(max-width:720px){main{padding:20px 14px}header{padding-bottom:18px}header>.eyebrow{display:none}.heading{align-items:flex-start;flex-direction:column;margin:24px 0 18px;gap:18px}.tabs{width:100%}.tabs button{flex:1}.controls{grid-template-columns:1fr 1fr;padding:20px 18px;gap:16px}.result-heading{padding:22px 18px 14px}h2{font-size:24px}.note-list{padding-left:18px;padding-right:18px}.diagram-wrap{padding:0 10px}.legend{gap:12px;padding:18px 12px}.legend span:last-child{flex-basis:100%;justify-content:center}.bottom{margin:0 18px;align-items:flex-start;flex-direction:column}footer{flex-direction:column}}@media print{body{background:white}main{max-width:none;padding:0}header{padding-bottom:12px}.tabs,.controls,.listen,#print{display:none}.heading{margin:18px 0}.heading p{display:none}section{border:0;box-shadow:none}.diagram-wrap{overflow:visible}#diagram svg{min-width:0}.note:first-child{color:var(--blue);background:white}.bottom{border:0}footer{color:#333}}
.position-guide{display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;padding:0 28px 20px;color:#4b6078;font-size:14px}.position-guide>strong{color:#183859}.position-guide>span{white-space:nowrap}.position-guide b{color:#005ac8}.variant-options{border:0;margin:0;padding:0 28px 22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.variant-options legend{font-size:14px;font-weight:700;color:#4b6078;padding:0 0 10px}.variant{flex-direction:row;align-items:flex-start;gap:10px;padding:14px 16px;border:1px solid #d6e0ec;border-radius:9px;cursor:pointer;background:#fafcff}.variant:has(input:checked){border-color:#005ac8;background:#f0f6ff;box-shadow:inset 0 0 0 1px #005ac8}.variant input{margin:2px 0 0;accent-color:#005ac8;width:16px;height:16px;flex-shrink:0}.variant strong{font-size:15px;color:#183859}.variant small{font-size:14px;line-height:1.5;display:block;margin-top:5px;font-weight:400}.position-detail{margin:0 28px 22px;border-left:3px solid #005ac8;padding:10px 14px;background:#f4f8ff;color:#294d74;font-size:15px;line-height:1.65}.finger-example{font-size:11px;font-style:normal;background:#253f60;color:white;width:16px;height:16px;border-radius:2px;display:grid;place-items:center}.exception-dot{width:16px;height:16px;border:2px dashed #b96500;border-radius:50%}#diagram:not(.chord){max-width:920px;margin:auto}@media(max-width:720px){.position-guide{padding:0 18px 18px;gap:10px 14px}.position-guide>strong{width:100%}.variant-options{padding:0 18px 18px;grid-template-columns:1fr}.variant{padding:12px}.position-detail{margin:0 18px 18px}}@media print{.variant-options{display:none}.position-guide{padding-top:10px}.position-detail{break-inside:avoid}.diagram-wrap{break-inside:avoid}}
.controls:has(#start-string-label:not([hidden])){grid-template-columns:.8fr 1.3fr 1.1fr 1.3fr 1fr}.scale-route{font-size:15px;line-height:1.65;color:#294d74;margin:0 28px 14px;font-weight:700}@media(max-width:850px){.controls:has(#start-string-label:not([hidden])){grid-template-columns:1fr 1fr}}@media(max-width:720px){.scale-route{margin:0 18px 14px}}
.fret-hit,.chord-note{cursor:pointer;touch-action:manipulation;outline:none}.fret-hit:hover,.fret-hit:focus-visible,.chord-note:hover .chord-hit,.chord-note:focus-visible .chord-hit{fill:#005ac812;stroke:#005ac8;stroke-width:2}.fret-hit.note-playing,.chord-note.note-playing .chord-hit{fill:#ffc76180;stroke:#b96500;stroke-width:2}.note-feedback{text-align:center;min-height:1.5em;margin:4px 24px 12px;color:#405f81;font-size:14px;line-height:1.5}@media print{.note-feedback{display:none}.fret-hit,.chord-hit{fill:transparent!important;stroke:none!important}}
.sample-credit{font-size:12px;color:#60738a;text-align:right;margin:12px 0 0;line-height:1.5}.sample-credit a{color:inherit;text-underline-offset:2px}@media print{.sample-credit{font-size:10px}}
.controls:has(#start-finger-label:not([hidden])){grid-template-columns:repeat(3,minmax(0,1fr))}#score-section{border-top:1px solid #dbe3ee;padding:24px 28px 12px}#score-section h3{font-size:21px;margin:0 0 10px;color:#173755}.score-help{font-size:14px;line-height:1.6;color:#52667e;margin:8px 0 16px}#score-systems{overflow-x:auto}.score-system svg{display:block;width:100%;height:auto;min-width:800px}.export-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}#download-pdf{border:0;background:#005ac8;color:white;border-radius:8px;padding:12px 18px;font:inherit;font-size:14px;font-weight:700;cursor:pointer}#download-pdf:disabled{opacity:.55;cursor:wait}.usage-rights{font-size:12px;line-height:1.6;color:#52667e;margin:20px 0 0}@media(max-width:720px){.controls:has(#start-finger-label:not([hidden])){grid-template-columns:1fr 1fr}#score-section{padding:20px 18px}.export-actions{width:100%}}@media print{.export-actions{display:none}#score-section{padding:15px 0}#score-systems{overflow:visible}.score-system{break-inside:avoid}.score-system svg{min-width:0}.usage-rights{color:#333}}

.pdf-result{margin:0 28px 24px;padding:16px;background:#f0f5fc;border:1px solid #b0c9e9;border-radius:8px}.pdf-result p{margin:0 0 12px;line-height:1.5}.pdf-result a{display:inline-block;color:#005ac8;font-weight:600;padding:10px 14px;border:1px solid #b0c9e9;border-radius:6px;background:white;text-decoration:none}.pdf-result a:hover{background:#dfebfb}@media print{.pdf-result{display:none}}

.error-report{font-size:14px;line-height:1.6;color:#52667e;margin:24px 0 0}.error-report a{color:#005ac8;overflow-wrap:anywhere}

.website-link{margin:12px 0;font-size:16px}.website-link a{color:#005ac8;font-weight:600}

.variant-current{margin:0;padding:12px 14px;background:#f0f5fc;border-left:3px solid #005ac8;color:#183859;font-size:16px;font-weight:700;line-height:1.5;align-self:start}

#workspace > .score-help{margin-left:28px;margin-right:28px}
@media(max-width:720px){#workspace > .score-help{margin-left:18px;margin-right:18px}}

.beta-badge{display:inline-block;flex-shrink:0;padding:8px 12px;border:1px solid #b3c9e8;border-radius:6px;background:#eaf2ff;color:#154a88;font-size:14px;font-weight:700;line-height:1.5}.beta-notice{margin:0 0 24px;padding:14px 18px;border-left:3px solid #005ac8;background:#eaf2ff;color:#294d74;font-size:16px;line-height:1.6}.beta-notice a{color:#005ac8;text-underline-offset:3px}@media print{.beta-badge{background:white;border-color:#555;color:#333}.beta-notice{display:none}}

.beta-notice>p{margin:0 0 8px}.contact-details summary{cursor:pointer;color:#005ac8;text-decoration:underline;text-underline-offset:3px}.contact-details summary:focus-visible{outline:3px solid #f29c28;outline-offset:3px}.contact-content{padding-top:12px}.contact-content a{overflow-wrap:anywhere}.contact-content p{margin:8px 0 0;font-size:14px}.copy-email{border:1px solid #b3c9e8;border-radius:6px;background:white;color:#005ac8;padding:8px 12px;margin:6px 8px;font-size:14px;font-weight:700}.copy-status{font-size:14px}.export-choice{max-width:100%}.bottom{flex-wrap:wrap}.export-choice .export-actions{margin-bottom:10px}.bottom .export-choice p{margin:4px 0;max-width:580px}@media print{.export-choice,.copy-email,.copy-status{display:none}}

.instrument-choice{padding:18px 28px 0}.instrument-choice label{display:flex;flex-direction:row;align-items:center;gap:12px;width:fit-content;max-width:100%;min-height:44px;padding:8px 0;font-size:20px;font-weight:600;line-height:1.4;cursor:pointer;color:#173755}.instrument-choice input{width:24px;height:24px;flex:0 0 24px;margin:0;accent-color:#005ac8}.instrument-choice input:focus-visible{outline:3px solid #f29c28;outline-offset:3px}
#piano-panel{border-top:1px solid #dbe3ee;padding:24px 28px 12px}#piano-title{font-size:21px;color:#173755;margin:0 0 10px}.piano-scroll{overflow-x:auto;padding:5px 3px 12px}#piano-keyboard{position:relative;display:flex;height:184px;width:100%;min-width:calc(var(--white-count)*38px);border-bottom:3px solid #173755;border-radius:0 0 5px 5px}.piano-key{padding:0;border-radius:0 0 5px 5px;display:flex;align-items:flex-end;justify-content:center;touch-action:manipulation;font-family:Arial,sans-serif;font-weight:700;font-size:12px}.white-key{position:relative;width:calc(100% / var(--white-count));height:180px;flex-shrink:0;background:linear-gradient(#f7f9fc,white 70%);border:1px solid #8798aa;color:#153c6a;padding-bottom:12px}.black-key{position:absolute;left:calc(var(--key-position)*100% / var(--white-count));transform:translateX(-50%);width:calc(64% / var(--white-count));height:112px;z-index:1;border:1px solid #0e1b2b;background:linear-gradient(#344155,#111d2c);color:white;padding-bottom:9px;box-shadow:0 3px 3px #14263d40}.piano-key-label{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:25px;width:calc(100% - 4px);border-radius:4px;line-height:1.35;pointer-events:none}.scale-key .piano-key-label{background:#dfebfb;color:#153c6a;border:1px solid #9ab9df;padding:4px 0}.root-key .piano-key-label{background:#005ac8;color:white;border:1px solid #005ac8}.piano-root-dot{font-size:7px;line-height:1;margin-bottom:3px}.piano-key:hover{box-shadow:inset 0 0 0 3px #f29c28}.piano-key:focus-visible{outline:3px solid #f29c28;outline-offset:-3px;z-index:2}.piano-key.note-playing{background:#ffd785;box-shadow:inset 0 0 0 3px #a85800}.piano-key.note-playing .piano-key-label{background:#fff4d8;color:#582800;border-color:#a85800}
@media(max-width:720px){.instrument-choice{padding:18px 18px 0}#piano-panel{padding:20px 18px 12px}}
@media print{.instrument-choice,#piano-feedback{display:none}#piano-panel{padding:15px 0;break-inside:avoid}.piano-scroll{overflow:visible}#piano-keyboard{min-width:0}.piano-key{print-color-adjust:exact;-webkit-print-color-adjust:exact;font-size:9px}}

/* Exact tonic-to-tonic bounds, also when the tonic is a black key. */
#piano-keyboard{max-width:720px;margin:0 auto}.white-key{position:absolute;left:calc(var(--key-position)*100% / var(--white-count))}.piano-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:10px}.piano-heading #piano-title{margin:0}@media(max-width:550px){.piano-heading{align-items:flex-start;flex-direction:column}}


.instrument-choice{display:flex;flex-wrap:wrap;gap:14px 28px}#fifths-panel{border-top:1px solid #dbe3ee;padding:24px 28px 12px}#fifths-title{font-size:21px;color:#173755;margin:0 0 10px}.fifths-scroll{overflow-x:auto}#fifths-diagram{max-width:940px;min-width:760px;margin:auto}#fifths-diagram>svg{display:block;width:100%;height:auto}#fifths-detail{border-left:3px solid #005ac8;background:#f4f8ff;padding:12px 14px;color:#294d74;font-size:16px;font-weight:700}#fifths-enharmonic{margin:10px 0 18px}@media(max-width:720px){#fifths-panel{padding:20px 18px 12px}}@media print{#fifths-panel{padding:12px 0;break-inside:avoid}.fifths-scroll{overflow:visible}#fifths-diagram{min-width:0;max-width:170mm}#fifths-diagram svg{print-color-adjust:exact;-webkit-print-color-adjust:exact}#fifths-panel .score-help{font-size:11px;margin:5px 0}}
#export-panel{border-top:1px solid #dbe3ee;padding:24px 28px}#export-panel h3{font-size:21px;color:#173755;margin:0 0 12px}.export-items{border:1px solid #cbd7e5;border-radius:9px;padding:8px 16px;margin:16px 0}.export-items legend{font-weight:700;color:#294d74;padding:0 8px;font-size:14px}.export-item{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px solid #e2e8f1}.export-item:last-child{border:0}.export-item label{flex-direction:row;align-items:center;gap:10px;font-size:16px;cursor:pointer}.export-item input{width:20px;height:20px;margin:0;accent-color:#005ac8}.export-item:has(input:disabled){opacity:.55}.export-item input:focus-visible{outline:3px solid #f29c28;outline-offset:3px}@media(max-width:720px){#export-panel{padding:20px 18px}.export-items{padding:6px 10px}.export-item label{font-size:14px}}@media print{#export-panel{display:none}}

#export-panel .pdf-result{margin:14px 0}#pdf-file-actions[hidden]{display:none}

.png-actions{display:flex;gap:8px;flex-wrap:wrap}.png-copy,#copy-source-link{background:white;color:#005ac8;border:1px solid #b3c9e8;border-radius:6px;padding:9px 14px;font-size:14px;font-weight:700;white-space:nowrap;cursor:pointer}.png-copy:disabled{cursor:default}.export-item{flex-wrap:wrap}.png-copy-status{flex-basis:100%;font-size:14px;line-height:1.6;margin:0;color:#294d74}.png-copy-status a{color:#005ac8}.source-link{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:0 0 20px;font-size:14px}.source-link a{color:#005ac8}.source-link span{color:#294d74}@media(max-width:520px){.export-item{gap:10px}.png-actions{width:100%}.png-actions button{flex:1}}