@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
[hidden]{display:none!important}
:root{--ink:#171721;--accent:#6B64C5;--muted:#66647A;--paper:#FBF7EF;--line:#DED9EB;--soft:#EBE8FF}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:'DM Sans',system-ui,sans-serif;font-size:14px}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #514AA7;outline-offset:4px}button{border:0}a{color:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:235px;background:#F1EDFB;padding:40px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column}.brand{display:flex;align-items:center;text-decoration:none;gap:12px;font-family:Manrope,system-ui;font-size:28px;letter-spacing:-1.2px;font-weight:800}.brand-icon{background:var(--accent);color:white;border-radius:13px;width:41px;height:45px;display:grid;place-items:center;font-size:34px;font-weight:400}.brand-sub{display:block;font:9px 'DM Sans',sans-serif;letter-spacing:2px;margin-top:5px}.side-caption{font-size:9px;letter-spacing:1.5px;color:#66647A;margin:65px 9px 18px}.nav-item{display:flex;align-items:center;gap:13px;background:none;width:100%;padding:15px 16px;text-align:left;border-radius:9px;color:#66647A;margin-bottom:7px;font-weight:500}.nav-item.active{background:#EBE8FF;color:var(--accent)}.nav-item>span{font-size:21px}.side-bottom{margin-top:auto;padding:0 10px}.mini-oboe{font-size:55px;color:#ABA3BC}.side-bottom p{font-size:12px;line-height:1.9;color:#66647A}.side-bottom strong{font-weight:500}.text-button{background:none;padding:20px 0 0;color:#66647A;font-size:12px}.workspace{margin-left:235px}.topbar{height:75px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 48px;color:#66647A;font-size:12px}.privacy{font-size:11px;display:flex;gap:8px;align-items:center}.privacy i{width:6px;height:6px;border-radius:50%;background:#3BBBE6}main{max-width:1330px;margin:auto;padding:45px 48px 20px}.heading{display:flex;justify-content:space-between;align-items:center}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:#66647A}h1{font-family:Manrope,system-ui;font-size:40px;line-height:1.25;letter-spacing:-1.8px;margin:12px 0}p{color:var(--muted);line-height:1.6}.heading p{font-size:14px;margin:0}.help-round{width:32px;height:32px;background:none;border:1px solid #DED9EB;color:#66647A;border-radius:50%}.toolbar{display:flex;justify-content:space-between;align-items:center;margin:31px 0 22px;gap:16px}.tabs{display:flex;background:#F5F0FA;padding:4px;border-radius:10px;gap:4px}.tabs button{background:none;color:#66647A;padding:10px 20px;border-radius:7px;font-size:12px;font-weight:600}.tabs button[aria-selected=true]{background:white;color:var(--accent);box-shadow:0 2px 5px #17172108}.reference{color:#66647A;font-size:11px;display:flex;gap:12px;align-items:center}.reference>span{border:1px solid var(--line);padding:9px 11px;border-radius:8px;color:#66647A;background:#FBF7EF}.reference select{border:0;background:none;color:var(--ink);font-weight:600;cursor:pointer}.cards{display:grid;grid-template-columns:1.34fr 1fr;gap:22px}.tuner-card,.fingering-card{background:white;border:1px solid var(--line);border-radius:17px;padding:25px 28px;min-width:0}.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.state{display:flex;align-items:center;gap:6px;font-size:10px;color:#66647A}.state i{background:#ABA3BC;width:5px;height:5px;border-radius:50%}.state.listening{color:var(--accent)}.state.listening i{background:var(--accent);animation:pulse 1.5s infinite}.note-area{text-align:center;padding-top:16px}.note-name{font-family:Manrope,sans-serif;font-size:84px;font-weight:600;line-height:1.2;letter-spacing:-5px}.note-name span{font-size:30px;margin-left:8px;letter-spacing:-1px;color:#ABA3BC;vertical-align:top;display:inline-block;padding-top:14px}.note-meta{display:flex;align-items:center;justify-content:center;gap:10px;font-size:11px;color:#66647A;margin-top:5px}.divider{width:1px;height:10px;background:#DED9EB}.tuning-message{margin-top:19px;font-size:13px;color:#66647A;min-height:20px}.tuning-message.good{color:var(--accent)}.tuning-message.off{color:#842B3D}.meter{max-width:395px;margin:29px auto 0}.meter-labels{display:flex;justify-content:space-between;color:#66647A;font-size:10px}.meter-labels span:nth-child(2){color:var(--accent)}.scale{height:52px;position:relative;margin:10px 0 0}.sweet-spot{position:absolute;left:45%;width:10%;inset-block:0;background:#EBE8FF;border-radius:5px}.ticks{position:absolute;inset:15px 0 8px;display:flex;justify-content:space-between;align-items:center}.ticks i{height:13px;width:1px;background:#DED9EB}.ticks i.major{height:24px}.ticks i.center{background:var(--accent)}.needle{position:absolute;left:50%;top:0;height:52px;width:2px;background:var(--accent);transition:left .12s ease;transform:translateX(-50%)}.needle:before{content:'';position:absolute;top:-3px;left:-4px;border-top:7px solid var(--accent);border-left:5px solid transparent;border-right:5px solid transparent}.needle.neutral{opacity:.28}.meter-values{display:flex;justify-content:space-between;color:#66647A;font-size:9px}.cents{text-align:center;margin-top:11px;font-size:20px;color:#514AA7;font-weight:500}.cents small{font-size:10px;color:#66647A;margin-left:3px}.staff{height:76px;margin:14px auto 5px;max-width:240px}.staff svg{width:100%;height:100%;overflow:visible}.mic-controls{text-align:center}.primary{background:var(--accent);color:white;border-radius:9px;padding:13px 23px;font-weight:500;font-size:12px;display:inline-flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 3px 4px #6B64C518}.primary:hover{background:#40388F}.primary:disabled{opacity:.6;cursor:wait}.mic-controls p{font-size:10px;margin:10px 0 0}.pill{background:#EBE8FF;color:var(--accent);padding:6px 12px;border-radius:6px;font-size:11px;font-weight:600}.diagram{height:295px;margin:14px auto 0;max-width:335px}.diagram svg{width:100%;height:100%;overflow:visible}.key{fill:#FBF7EF;stroke:#8A829F;stroke-width:1.5}.key.pressed{fill:var(--accent);stroke:var(--accent)}.legend{display:flex;justify-content:center;gap:16px;font-size:9px;color:#66647A;padding:16px 0;border-bottom:1px solid #DED9EB}.legend span{display:flex;gap:5px;align-items:center}.legend i{width:10px;height:10px;border-radius:50%;border:1px solid #8A829F}.legend .closed{background:var(--accent);border-color:var(--accent)}.legend .half{background:linear-gradient(90deg,var(--accent) 50%,white 50%)}.finger-instruction{font-size:12px;margin:16px 0 8px;line-height:1.65;min-height:36px}.system-note{font-size:10px;line-height:1.65;margin:0;color:#66647A}.learn-controls{display:flex;align-items:center;justify-content:center;gap:17px;font-size:11px;color:#66647A}.learn-controls button{width:34px;height:34px;background:#EBE8FF;color:var(--accent);border-radius:8px}.learn-controls[hidden]{display:none}.error{font-size:12px;color:#842B3D;background:#FFE3DE;border-radius:8px;padding:12px;margin-top:15px;line-height:1.5}.explore{margin-top:26px;background:#F1EDFB;border-radius:14px;border:1px solid #DED9EB;padding:23px 26px 17px}.explore-head{display:flex;justify-content:space-between;align-items:center;gap:15px}.explore h2{font-family:Manrope,sans-serif;font-size:17px;letter-spacing:-.5px;margin:0 0 5px}.explore p{font-size:11px;margin:0}.tone-button{background:#FBF7EF;border:1px solid #DED9EB;border-radius:8px;padding:10px 13px;font-size:11px;color:#514AA7;white-space:nowrap}.keyboard-wrap{overflow-x:auto;margin-top:20px;padding:0 0 7px}.keyboard{display:flex;height:96px;position:relative;min-width:685px;isolation:isolate}.piano-key{position:relative;flex:1;border:1px solid #DED9EB;background:#fff;border-radius:0 0 6px 6px;padding:0;display:flex;align-items:flex-end;justify-content:center;padding-bottom:11px;color:#66647A;font-size:10px;min-width:31px}.piano-key.black{position:absolute;height:58px;width:3.7%;background:#171721;color:#FFFFFF;z-index:2;border-color:#171721;border-radius:0 0 4px 4px;padding-bottom:6px;font-size:8px;transform:translateX(-50%)}.piano-key.selected{background:#EBE8FF;color:#514AA7;box-shadow:inset 0 -3px var(--accent)}.piano-key.black.selected{background:var(--accent);box-shadow:inset 0 -3px #FFD24B}.piano-key:hover{background:#EBE8FF}.piano-key.black:hover{background:#514AA7}.keyboard-footer{display:flex;justify-content:space-between;margin-top:8px;font-size:9px;color:#66647A;gap:12px}.footer-dot{padding:0 6px}footer{display:flex;gap:18px;justify-content:space-between;margin:27px 0 0;color:#66647A;font-size:9px}footer b{font-family:Manrope,sans-serif;font-size:13px;letter-spacing:-.5px;color:#66647A}footer a{text-decoration:none}footer a:hover{text-decoration:underline}dialog{border:1px solid var(--line);border-radius:18px;max-width:520px;width:calc(100% - 32px);padding:35px;color:var(--ink);box-shadow:0 20px 90px #17172140}dialog::backdrop{background:#17172166;backdrop-filter:blur(3px)}dialog h2{font-family:Manrope,sans-serif;font-size:24px}dialog p{font-size:13px}.dialog-close{position:absolute;right:15px;top:12px;background:none;color:var(--muted);font-size:26px}dialog .primary{margin-top:18px}@keyframes pulse{50%{opacity:.25}}@media(min-width:1500px){main{padding-top:55px}.diagram{height:325px}.note-area{padding-top:26px}.meter{margin-top:39px}.staff{margin-top:25px}}@media(max-width:1100px){.sidebar{width:185px;padding:32px 17px}.workspace{margin-left:185px}main{padding:32px 28px}.topbar{padding:0 28px}.tuner-card,.fingering-card{padding:22px 20px}.legend{gap:9px}.reference{gap:6px}.cards{gap:16px}.brand{font-size:25px}}@media(max-width:800px){.sidebar{position:static;width:auto;height:70px;padding:14px 22px;flex-direction:row;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:23px}.brand-icon{height:35px;width:32px;font-size:27px;border-radius:10px}.brand-sub{font-size:7px;letter-spacing:1.5px}.sidebar nav{display:flex}.nav-item{width:auto;padding:8px 11px;margin:0;font-size:11px}.nav-item>span{font-size:16px}.side-caption,.side-bottom,.topbar{display:none}.workspace{margin:0}main{padding:30px 22px 20px}h1{font-size:33px}.cards{grid-template-columns:1.15fr 1fr}.note-name{font-size:72px}.diagram{height:278px}.card-top>.eyebrow{font-size:8px;letter-spacing:1px}.state{font-size:9px}.legend{font-size:8px;gap:7px}.tuner-card,.fingering-card{padding:19px 17px}.reference{font-size:10px}.keyboard-footer{font-size:8px}footer{flex-wrap:wrap;justify-content:flex-start}footer>span{flex-basis:100%}.finger-instruction{font-size:11px}}@media(max-width:590px){.cards{grid-template-columns:1fr}.heading p{font-size:12px}main{padding:26px 16px}.toolbar{margin-top:25px;align-items:flex-start}.tabs button{padding:9px 11px;font-size:11px}.reference{flex-direction:column;gap:4px;align-items:flex-end;font-size:9px}.reference>span{padding:6px 8px}.tuner-card,.fingering-card{padding:22px}.note-name{font-size:78px}.meter{max-width:330px}.diagram{height:300px}.card-top>.eyebrow{font-size:10px}.legend{font-size:10px;gap:18px}.finger-instruction{font-size:12px}.explore{padding:20px 17px}.explore-head{align-items:flex-start}.explore h2{font-size:16px}.explore p{font-size:10px}.tone-button{font-size:10px;padding:8px 9px}.keyboard-footer{flex-direction:column;gap:4px}.sidebar{padding:12px 16px}.nav-item{padding:8px;font-size:10px}.nav-item>span{display:none}.privacy{display:none}.state{font-size:10px}}
.metronome{background:#fff;border:1px solid var(--line);border-radius:14px;padding:21px 25px 15px;margin-bottom:22px}.metronome-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.metronome h2{font-family:Manrope,system-ui;font-size:18px;letter-spacing:-.5px;margin:5px 0 0}.metronome .eyebrow{font-size:9px}.beat-lights{display:flex;gap:9px}.beat-lights i{width:11px;height:11px;border-radius:50%;background:#EBE8FF;border:1px solid #DED9EB}.beat-lights i:first-child{border-color:#ABA1D9}.beat-lights i.current{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 4px #6B64C518}.beat-lights i.current:first-child{background:#FFD24B;border-color:#FFD24B;box-shadow:0 0 0 4px #FFD24B30}.metronome-controls{display:flex;align-items:center;gap:24px}.tempo-control{display:flex;align-items:center;gap:8px}.tempo-step{width:30px;height:34px;border-radius:7px;background:#EBE8FF;color:var(--accent);font-size:21px}.tempo-value{display:flex;flex-direction:column;text-align:center}.tempo-value input{width:70px;border:0;color:var(--ink);font:600 32px Manrope,system-ui;text-align:center;background:transparent;appearance:textfield;-moz-appearance:textfield}.tempo-value input::-webkit-inner-spin-button,.tempo-value input::-webkit-outer-spin-button{appearance:none;margin:0}.tempo-value span{font-size:9px;color:#66647A;letter-spacing:1px}.tempo-picker{flex:1;min-width:100px}.tempo-picker input{width:100%;accent-color:var(--accent);cursor:pointer;margin:0;height:22px}.tempo-presets{display:flex;justify-content:space-between;gap:4px;margin-top:5px}.tempo-presets button{background:transparent;border-radius:5px;padding:4px 7px;font-size:10px;color:#66647A}.tempo-presets button[aria-pressed=true]{background:#EBE8FF;color:var(--accent);font-weight:700}.beat-select{display:flex;flex-direction:column;gap:6px;color:#66647A;font-size:9px}.beat-select select{background:#FBF7EF;border:1px solid var(--line);color:#514AA7;padding:8px;border-radius:7px;font-size:11px}.metronome-toggle{min-width:159px}.metronome-hint{font-size:10px;margin:14px 0 0;color:#66647A}.metronome-hint [role=status]{color:#514AA7}@media(max-width:1100px){.metronome-controls{gap:13px}.metronome-toggle{min-width:145px;padding:12px 15px}}@media(max-width:900px){.metronome-controls{flex-wrap:wrap}.tempo-picker{flex-basis:40%}.beat-select{flex:1}.metronome-toggle{min-width:165px}}@media(max-width:590px){.metronome{padding:20px;margin-bottom:18px}.tempo-picker{flex-basis:40%}.tempo-value input{font-size:30px;width:59px}.tempo-control{gap:5px}.tempo-step{width:26px}.metronome-controls{gap:18px 12px}.metronome-toggle{min-width:160px}.metronome-hint{line-height:1.7}.tempo-presets button{padding:4px 3px}.beat-select{min-width:110px}}
/* Marks follow the thumb centre over the complete 40–240 BPM range. */
.tempo-picker input[type=range]{appearance:none;-webkit-appearance:none;background:transparent;height:22px}.tempo-picker input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:3px;background:#DED9EB}.tempo-picker input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:16px;height:16px;margin-top:-6px;border:0;border-radius:50%;background:var(--accent)}.tempo-picker input[type=range]::-moz-range-track{height:4px;border-radius:3px;background:#DED9EB}.tempo-picker input[type=range]::-moz-range-thumb{width:16px;height:16px;border:0;border-radius:50%;background:var(--accent)}.tempo-scale{position:relative;height:19px;margin:0 8px;color:#66647A;font-size:9px}.tempo-scale span{position:absolute;top:0;transform:translateX(-50%)}.tempo-scale span:before{content:'';display:block;width:1px;height:4px;background:#ABA1D9;margin:0 auto 3px}.tempo-presets{justify-content:flex-start;align-items:center;flex-wrap:wrap;gap:5px;margin-top:7px}.tempo-shortcuts-label{font-size:9px;color:#66647A;margin-right:2px}.tempo-presets button{border:1px solid #DED9EB;background:#FBF7EF;padding:4px 7px}.tempo-presets button[aria-pressed=true]{border-color:#ABA1D9}.tempo-control,.beat-select,.metronome-toggle{align-self:center}@media(max-width:590px){.tempo-scale{font-size:8px}.tempo-presets{gap:4px}.tempo-presets button{padding:4px 5px}}

/* Cre@Band · paleta de la guía v0.3 (agosto de 2026). */
:root{--brand-violet:#6B64C5;--brand-violet-dark:#514AA7;--brand-coral:#F47D7D;--brand-sky:#3BBBE6;--brand-yellow:#FFD24B;--ink:#171721;--paper:#FBF7EF;--muted:#66647A;--accent:var(--brand-violet);--soft:#EBE8FF;--line:#DED9EB}.primary{background:var(--brand-violet-dark)}.primary:hover{background:#40388F}.nav-item.active,.tabs button[aria-selected=true],.pill,.tone-button,.tempo-step,.tempo-presets button[aria-pressed=true]{color:var(--brand-violet-dark)}.eyebrow,.metronome h2{color:var(--brand-violet-dark)}h1{color:var(--ink)}.explore{background:#DFF6FF;border-color:#B8DFED}.tone-button{background:#FFFFFF;border-color:#A9CFDD}.sweet-spot{background:#EBE8FF}.tuning-message.good{color:var(--brand-violet-dark)}.tuning-message.off{color:#842B3D}.beat-lights i.current:first-child{background:var(--brand-yellow);border-color:var(--ink)}.beat-lights i.current{border-color:var(--brand-violet-dark)}.brand-icon{position:relative}.brand-icon:after{content:"";position:absolute;bottom:-4px;left:7px;width:8px;height:4px;background:var(--brand-coral);box-shadow:10px 0 var(--brand-sky),20px 0 var(--brand-yellow);border-radius:1px}.help-round{color:var(--brand-violet-dark);border-color:#8A829F}.legend .half{background:linear-gradient(90deg,var(--brand-violet) 50%,var(--paper) 50%)}.beat-select select,.reference>span{color:var(--ink)}.meter-labels span:nth-child(2){color:var(--brand-violet-dark)}.key{fill:var(--paper);stroke:#8A829F}.key.pressed{fill:var(--brand-violet);stroke:var(--brand-violet-dark)}
.note-name span{color:var(--muted)}
/* Logotipo oficial: proporción original y espacio de protección. */
.brand-official{display:flex;flex-direction:column;align-items:center;text-align:center;gap:0;letter-spacing:normal;padding:8px 0}.creaband-logo{display:block;width:174px;max-width:100%;height:auto;object-fit:contain}.brand-official .brand-sub{font-family:'DM Sans',system-ui,sans-serif;font-size:9px;letter-spacing:.35px;font-weight:500;line-height:1.5;margin:9px 0 0;text-align:center;white-space:nowrap;color:var(--brand-violet-dark)}.topbar strong{color:var(--brand-violet-dark);font-weight:600}@media(max-width:1100px) and (min-width:801px){.creaband-logo{width:149px}.brand-official .brand-sub{font-size:8px;letter-spacing:.35px}}@media(max-width:800px){.sidebar{height:90px;gap:12px}.brand-official{flex:none;padding:3px 0}.creaband-logo{width:146px}.brand-official .brand-sub{font-size:8px;letter-spacing:.35px;margin-top:6px}.sidebar nav{flex-shrink:0}.nav-item{white-space:nowrap}}@media(max-width:350px){.creaband-logo{width:125px}.brand-official .brand-sub{font-size:7px;letter-spacing:.2px}.sidebar{gap:8px}.nav-item{padding:8px 6px}}

/* Instrument selection and source diagrams. */
.instrument-picker{display:flex;align-items:center;gap:25px;flex-wrap:wrap;background:#F1EDFB;border:1px solid var(--line);border-radius:13px;margin-top:26px;padding:17px 22px}.instrument-picker label{display:flex;flex-direction:column;gap:7px;max-width:100%;font-size:11px;color:var(--muted)}.instrument-picker select{padding:10px 34px 10px 12px;border:1px solid #BEB7DD;background:white;border-radius:8px;color:var(--brand-violet-dark);font-size:15px;font-weight:600;max-width:100%}.instrument-picker p{font-size:12px;flex:1;min-width:160px;margin:0;max-width:420px}.instrument-picker #hornOptions select{font-size:11px}.sounding-note{font-size:11px;color:var(--brand-violet-dark);margin-top:12px}.enlarge-chart{display:block;margin:5px auto 0;padding:7px 12px;color:var(--brand-violet-dark);border:1px solid var(--line);border-radius:7px;font-size:11px}.chart-dialog{max-width:800px;text-align:center}.chart-dialog h2{font-size:20px;padding-right:15px}.horn-diagram{height:295px;display:flex;flex-direction:column;gap:15px;justify-content:center}.valve-side{text-align:center;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:12px;color:var(--brand-violet-dark)}.valve-side svg{height:67px;display:block;margin:auto;max-width:100%}.valve-side span,.valve-side small{display:block;font-size:11px;line-height:1.5}.valve-side small{color:var(--muted);font-size:10px}.empty-chart{text-align:center;padding:60px 12px}footer{flex-wrap:wrap}footer a{color:var(--brand-violet-dark)}.staff{height:100px;max-width:270px}.learn-controls button:disabled{opacity:.35;cursor:default}@media(max-width:590px){.instrument-picker{padding:16px;gap:13px;margin-top:22px}.instrument-picker>label:first-child{width:100%}.instrument-picker p{min-width:0;flex-basis:100%}.instrument-picker select{width:100%;font-size:14px}.sounding-note{font-size:10px}.chart-dialog{padding:25px 16px}.chart-dialog h2{font-size:17px}.keyboard{height:105px}}

/* Allow narrow edge accidentals without covering neighbouring white keys. */
.piano-key.black{min-width:0}

/* Original, scalable fingering diagrams and selectable alternatives. */
.variant-options{display:flex;flex-direction:column;gap:7px;margin:17px 0 0;color:var(--muted);font-size:10px}
.variant-options select{font:500 12px 'DM Sans',system-ui;color:var(--brand-violet-dark);background:#FBF7EF;border:1px solid var(--line);padding:9px;border-radius:7px;max-width:100%;width:100%}
.diagram.native-diagram{max-width:390px;height:350px;margin-top:8px}
.diagram.native-diagram.flute{height:300px;max-width:430px}
.diagram.native-diagram.trumpet{height:310px}
#chartPreview{height:min(65vh,650px);margin:20px auto;max-width:670px}
#chartPreview svg{display:block;width:100%;height:100%;overflow:visible}
.chart-dialog #chartPreviewInstruction{font-size:12px;line-height:1.7;text-align:left}
.instrument-picker #tromboneOptions select{font-size:12px}
@media(max-width:590px){.diagram.native-diagram{height:360px}.diagram.native-diagram.flute{height:285px}.diagram.native-diagram.trumpet{height:300px}.variant-options select{font-size:12px}.instrument-picker #tromboneOptions{width:100%}}

/* Keep the sidebar brand and its motto centred as one group. */
.side-caption{text-align:center}