.piano-page{--ink:#142033;--muted:#66768a;--line:#d7e1e8;--soft:#f4f7f8;--accent:#087f6d;--accent-dark:#056658;--mint:#e8f6f2;--coral:#c45e55;--gold:#b6862f;color:var(--ink)}.piano-heading{margin-bottom:28px}.piano-eyebrow{margin:0 0 7px!important;color:var(--accent);font-size:11px!important;font-weight:900;letter-spacing:0}.piano-heading h1{margin:0 0 13px;color:#0f1827;font-size:42px;line-height:1.2;letter-spacing:0}.piano-heading>p:last-child{max-width:850px;margin:0;color:#53647a;font-size:17px;line-height:1.75}.piano-studio,.record-panel,.practice-tools,.key-guide,.piano-guide{border:1px solid var(--line);border-radius:8px;background:#fff}.piano-studio{overflow:hidden}.studio-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 23px;border-bottom:1px solid var(--line)}.studio-head h2,.practice-panel h2,.key-guide h2,.piano-guide h2{margin:0;color:var(--ink);font-size:22px;line-height:1.35;letter-spacing:0}.live-display{min-width:190px;padding-left:16px;border-left:3px solid var(--accent);text-align:right}.live-display span{display:block;color:var(--accent);font-size:9px;font-weight:900}.live-display strong{display:block;margin-top:3px;color:#26374d;font-size:13px}.studio-controls{display:grid;grid-template-columns:1.5fr .62fr 1fr 1fr;gap:12px;padding:16px 23px;background:var(--soft)}.studio-controls>div,.studio-controls>label{min-width:0}.studio-controls span{display:block;margin-bottom:6px;color:#5c6d82;font-size:9px;font-weight:900}.segment{display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;border:1px solid #cad7df;border-radius:6px;background:#fff}.segment button{min-height:38px;margin:0;padding:0 7px;border:0;border-left:1px solid #d9e2e8;border-radius:0;background:#fff;color:#4d5e73;box-shadow:none;font-size:9px;font-weight:800}.segment button:first-child{border-left:0}.segment button.active{background:var(--accent);color:#fff}.octave-control>div{display:grid;grid-template-columns:34px minmax(70px,1fr) 34px;align-items:center;overflow:hidden;border:1px solid #cad7df;border-radius:6px;background:#fff}.octave-control button{height:38px;margin:0;padding:0;border:0;border-radius:0;background:#fff;color:var(--accent);box-shadow:none;font-size:18px}.octave-control strong{font-size:10px;text-align:center}.range-control>span{display:flex;justify-content:space-between}.range-control output{color:var(--accent);font:inherit}.range-control input{width:100%;height:38px;margin:0;accent-color:var(--accent)}.option-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px;padding:14px 23px}.option-row>button,.option-row>label{display:grid;grid-template-columns:42px minmax(0,1fr);grid-template-rows:auto auto;align-items:center;column-gap:9px;min-height:58px;margin:0;padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);box-shadow:none;text-align:left;cursor:pointer}.option-row>label input{grid-row:1/3;width:20px;height:20px;margin:auto;accent-color:var(--accent)}.option-row span:first-child{display:grid;grid-row:1/3;width:34px;height:34px;place-items:center;border-radius:50%;background:#edf2f4;color:#536477;font-size:9px;font-weight:900}.option-row strong{font-size:10px}.option-row small{color:var(--muted);font-size:8px;line-height:1.4}.option-row button[aria-pressed=true]{border-color:#79bdaf;background:var(--mint)}.option-row button[aria-pressed=true] .pedal-icon{background:var(--accent);color:#fff}.keyboard-scroll{overflow-x:auto;padding:4px 23px 9px;scrollbar-color:#a8bbb7 #edf2f3;scrollbar-width:thin}.piano-keyboard{position:relative;display:flex;width:100%;min-width:720px;height:280px;padding:0 3px 4px;border-radius:5px;background:#16212c;user-select:none}.piano-key{position:relative;margin:0;padding:0;border:0;box-shadow:none;cursor:pointer;touch-action:none;-webkit-tap-highlight-color:transparent}.piano-key.white{width:calc(100% / 14);height:100%;border:1px solid #b9c5cc;border-top:0;border-radius:0 0 5px 5px;background:linear-gradient(#fff 0 84%,#eef2f3 100%);color:#506076}.piano-key.white+.piano-key.white{border-left-width:0}.piano-key.black{position:absolute;z-index:2;top:0;width:4.7%;height:62%;transform:translateX(-50%);border:1px solid #070b10;border-radius:0 0 4px 4px;background:linear-gradient(90deg,#101821,#27333d 55%,#0b1118);color:#d5dce0}.piano-key.active.white{background:linear-gradient(#d8f0ea,#b9ded5)}.piano-key.active.black{background:linear-gradient(#0e725f,#13927b)}.piano-key .note-label{position:absolute;right:0;bottom:16px;left:0;text-align:center}.piano-key .note-label b,.piano-key .note-label small{display:block}.piano-key .note-label b{font-size:11px}.piano-key .note-label small{margin-top:4px;color:var(--accent);font-size:9px;font-weight:900}.piano-key.black .note-label{bottom:10px}.piano-key.black .note-label b{font-size:8px}.piano-key.black .note-label small{color:#8ed4c6}.piano-keyboard.hide-labels .note-label{display:none}.piano-status{margin:0;padding:10px 23px 16px;color:#607285;font-size:10px;line-height:1.6}
.practice-panel{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.record-panel,.practice-tools{padding:20px}.record-panel header,.practice-tools header,.key-guide header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.record-panel header>span,.practice-tools header>span{padding:5px 8px;border-radius:5px;background:var(--mint);color:var(--accent);font-size:10px;font-weight:900}.record-panel>p{margin:8px 0 0;color:var(--muted);font-size:10px;line-height:1.6}.transport{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:7px;margin-top:15px}.transport button,.metronome-row button{min-height:43px;margin:0;padding:8px;border:1px solid var(--line);border-radius:7px;background:#fff;color:#34465b;box-shadow:none;font-size:10px;font-weight:900}.transport #recordButton{border-color:#d9aaa5;color:#a84841}.transport #recordButton i{display:inline-block;width:8px;height:8px;margin-right:5px;border-radius:50%;background:var(--coral)}.transport #recordButton.recording{background:#fff0ee}.transport button:disabled{color:#a9b2bc;cursor:not-allowed}.record-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.record-stats div{padding:10px;border-top:2px solid #a8cfc8;background:var(--soft)}.record-stats span{display:block;color:var(--muted);font-size:8px}.record-stats strong{display:block;margin-top:3px;font-size:12px}.chord-list{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:15px}.chord-list button{min-height:49px;margin:0;padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:var(--soft);color:var(--ink);box-shadow:none;font-size:10px;font-weight:900;text-align:left}.chord-list button:hover{border-color:#82bcb2;background:var(--mint)}.chord-list small{display:block;margin-top:3px;color:var(--muted);font-size:8px}.metronome-row{display:grid;grid-template-columns:1fr 105px;gap:8px;margin-top:10px}.metronome-row button.active{border-color:var(--accent);background:var(--mint);color:var(--accent)}.metronome-row label{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:7px;padding:0 9px;border:1px solid var(--line);border-radius:7px}.metronome-row label span{font-size:8px;font-weight:900}.metronome-row input{width:100%;height:40px;padding:0;border:0;background:transparent;font-size:11px}.key-guide{margin-top:14px;padding:20px}.key-guide>div{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:13px}.key-guide article{display:flex;align-items:center;gap:5px;overflow-x:auto;padding:11px;background:var(--soft)}.key-guide article strong{min-width:70px;font-size:9px}.key-guide kbd{display:inline-grid;min-width:25px;height:25px;place-items:center;border:1px solid #c9d4dc;border-bottom-width:3px;border-radius:4px;background:#fff;color:#32445a;font-size:9px;font-weight:900}.key-guide>p{margin:10px 0 0;color:var(--muted);font-size:9px}.key-guide>p kbd{margin:0 2px}
.piano-guide{margin-top:14px;padding:28px}.piano-guide header>p:last-child{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.75}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.guide-grid article{padding:17px;border-top:3px solid #8fc5ba;background:#f7f9fa}.guide-grid h3{margin:0 0 7px;font-size:14px}.guide-grid p,.faq p,.source-note p{margin:0;color:var(--muted);font-size:11px;line-height:1.75}.faq{margin-top:23px}.faq h2{margin-bottom:9px}.faq details{border-top:1px solid var(--line)}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{padding:14px 2px;font-size:12px;font-weight:800;cursor:pointer}.faq p{padding:0 3px 15px}.source-note{margin-top:21px;padding:16px;border-left:4px solid var(--accent);background:var(--mint)}.source-note strong{display:block;color:var(--accent);font-size:12px}.source-note a{display:inline-block;margin:8px 10px 0 0;border-bottom:1px solid #76b9ae;color:var(--accent);font-size:9px;font-weight:800;text-decoration:none}.tool-engagement-related{margin-top:28px}
@media(max-width:1100px){.studio-controls{grid-template-columns:1fr 1fr}.voice-control{grid-column:1/-1}}
@media(max-width:980px){.guide-grid{grid-template-columns:1fr}}
@media(max-width:700px){.piano-heading h1{font-size:32px}.piano-heading>p:last-child{font-size:15px}.studio-head{display:block;padding:18px 15px}.live-display{margin-top:12px;padding:10px 0 0;border-top:3px solid var(--accent);border-left:0;text-align:left}.studio-controls{grid-template-columns:1fr 1fr;padding:14px 15px}.voice-control{grid-column:1/-1}.segment button{font-size:8px}.option-row{grid-template-columns:1fr;padding:12px 15px}.keyboard-scroll{padding-right:15px;padding-left:15px}.piano-keyboard{height:240px}.piano-status{padding:9px 95px 14px 15px}.practice-panel{grid-template-columns:1fr}.key-guide,.piano-guide{padding:18px 15px}.key-guide>div{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.studio-head h2,.practice-panel h2,.key-guide h2,.piano-guide h2{font-size:20px}}
@media(max-width:420px){.studio-controls{grid-template-columns:1fr}.voice-control{grid-column:auto}.segment{grid-template-columns:1fr 1fr}.segment button:nth-child(3){border-left:0;border-top:1px solid var(--line)}.segment button:nth-child(4){border-top:1px solid var(--line)}.transport{grid-template-columns:1fr 1fr}.transport #recordButton{grid-column:1/-1}.piano-keyboard{height:220px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Keep global button hover/focus rules from tinting the instrument controls blue. */
.piano-page button{box-shadow:none!important}
.piano-page button:not(.piano-key){background-image:none!important}
.piano-page .segment button{background:#fff!important;color:#4d5e73!important}
.piano-page .segment button.active{background:var(--accent)!important;color:#fff!important}
.piano-page .octave-control button{background:#fff!important;color:var(--accent)!important}
.piano-page .option-row>button{background:#fff!important;color:var(--ink)!important}
.piano-page .option-row button[aria-pressed=true]{background:var(--mint)!important}
.piano-page .transport button,.piano-page .metronome-row button{border-color:var(--line)!important;background:#fff!important;color:#34465b!important}
.piano-page .transport #recordButton{border-color:#d9aaa5!important;color:#a84841!important}
.piano-page .transport #recordButton.recording{background:#fff0ee!important}
.piano-page .chord-list button{border-color:var(--line)!important;background:var(--soft)!important;color:var(--ink)!important}
.piano-page .chord-list button:hover,.piano-page .chord-list button:focus{border-color:#82bcb2!important;background:var(--mint)!important;color:var(--accent-dark)!important}
.piano-page .metronome-row button:hover,.piano-page .metronome-row button:focus{border-color:#8abfb5!important;background:#f3faf8!important;color:var(--accent)!important}
.piano-page .metronome-row button.active{border-color:var(--accent)!important;background:var(--mint)!important;color:var(--accent)!important}
.piano-page .metronome-row input{min-width:0;padding:0!important;border:0!important;background:transparent!important;box-shadow:none!important;color:var(--ink)!important;font-size:12px!important;font-weight:800;text-align:center;-moz-appearance:textfield}
.piano-page .metronome-row input::-webkit-inner-spin-button,.piano-page .metronome-row input::-webkit-outer-spin-button{margin:0;-webkit-appearance:none}

/* The piano keys keep their own finish even when shared button styles are active. */
.piano-page .piano-key.white{background:linear-gradient(#fff 0 84%,#eef2f3 100%)!important;color:#506076!important}
.piano-page .piano-key.black{background:linear-gradient(90deg,#101821,#27333d 55%,#0b1118)!important;color:#d5dce0!important}
.piano-page .piano-key.active.white{background:linear-gradient(#d8f0ea,#b9ded5)!important}
.piano-page .piano-key.active.black{background:linear-gradient(#0e725f,#13927b)!important}

/* Fit the computer key map without nested horizontal scrollbars. */
.piano-page .key-guide header{display:block}
.piano-page .key-guide>div{grid-template-columns:1fr}
.piano-page .key-guide article{display:grid;grid-template-columns:repeat(12,minmax(22px,1fr));gap:6px;overflow:visible;margin:0!important;padding:12px 14px}
.piano-page .key-guide article strong{grid-column:1/-1;min-width:0;margin-bottom:2px}
.piano-page .key-guide article kbd{width:100%;min-width:0}

/* Shared article margins must not create uneven guide-card rows. */
.piano-page .guide-grid{align-items:stretch}
.piano-page .guide-grid article{height:100%;margin:0!important}

@media(max-width:420px){.piano-page .key-guide article{grid-template-columns:repeat(6,minmax(28px,1fr))}.piano-page .key-guide article strong{grid-column:1/-1}}