:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ground:#f5f2ea;--paper:#fffcf5;--ink:#273c35;--muted:#52665b;--accent:#315d49;--on-accent:#fff;--line:#dcded3;--soft:#e8ede2;--keyboard-case:#dce1d6;--key-white:#fffefa;--key-white-edge:#d5d9d1;--key-black:#18251f;--key-black-edge:#0c1711;--key-ink:#374b40;--key-hint:#d6eadd;--key-pressed:#abcdb7;--ok:#315d49;--warn:#87531d;--focus:#a76824;--score-paper:#fffcf5;--score-ink:#233c2f}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--ground:#151d19;--paper:#202c25;--ink:#e8eee7;--muted:#afc1b3;--accent:#a4d3b2;--on-accent:#182c20;--line:#445348;--soft:#2d4032;--keyboard-case:#303c33;--key-white:#e2e5db;--key-white-edge:#a5b1a4;--key-black:#101b15;--key-black-edge:#060d09;--key-hint:#b0d8bb;--key-pressed:#88bc9c;--ok:#a4d3b2;--warn:#edbb7b;--focus:#edbb7b}}:root{font-synthesis:none;color:var(--ink);background:var(--ground);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{padding:env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left);margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;min-height:44px;color:var(--ink);background:0 0;border:0;border-radius:9px;padding:10px 16px;font-size:14px;font-weight:500;line-height:1.35}button:disabled{opacity:.45;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}a{color:inherit;text-decoration:none}p,h1,h2{margin:0}h2{letter-spacing:-.5px;font:400 27px Georgia,serif}button.primary{background:var(--accent);color:var(--on-accent);border-radius:100px;justify-content:center;align-items:center;gap:14px;padding:12px 26px;display:inline-flex;box-shadow:0 3px 10px #25493218}button.primary:hover{filter:brightness(.95)}button.outline{border:1px solid var(--line);background:var(--paper)}.quiet:hover{background:var(--soft)}.studio{margin:auto}.focus-studio{max-width:1740px;padding:0 clamp(12px, 3vw, 52px) env(safe-area-inset-bottom)}.studio-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:8px;height:68px;display:flex}.brand{letter-spacing:-1px;font:24px Georgia,serif}.header-actions{align-items:center;display:flex}.icon-control{min-width:44px}.piano-surface{min-height:calc(100dvh - 88px - env(safe-area-inset-top) - env(safe-area-inset-bottom));flex-direction:column;gap:16px;padding-bottom:20px;display:flex}.focus-cue{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:14px;min-height:180px;padding:24px 12px;display:flex}.focus-cue h1{color:var(--muted);letter-spacing:.08em;font-size:13px;font-weight:500;line-height:1.35}.focus-cue>p[role=status]{letter-spacing:-.035em;max-width:24ch;font:clamp(28px,3.5vw,48px)/1.35 Georgia,serif}.focus-cue .lesson-description{color:var(--muted);max-width:42ch;font-size:14px;line-height:1.5}.transport{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;display:flex}.focus-score{border:1px solid var(--line);background:var(--score-paper);border-radius:14px;overflow:hidden;box-shadow:0 5px 18px #273c3506}.focus-controls{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;min-height:44px;display:flex}.focus-controls select{background:var(--paper);max-width:145px;min-height:44px;color:var(--ink);border:0;border-radius:8px}.focus-controls.welcome-controls{display:none}.keyboard-section{background:var(--keyboard-case);border:1px solid var(--line);min-width:0;box-shadow:0 14px 35px #273c3512, 0 2px 0 var(--line);border-radius:18px;flex:none;padding:12px 14px 16px}.focus-studio .keyboard-viewport{padding-bottom:8px;display:block}.focus-studio .piano-keys{--piano-height:clamp(220px, 35dvh, 320px);height:clamp(220px,35dvh,320px);min-height:220px}.focus-studio .piano-key{padding-bottom:24px}.lesson-progress{color:var(--muted);gap:18px;padding-top:10px;font-size:11px;display:flex}.lesson-progress span{border-bottom:2px solid #0000;padding-bottom:6px}.lesson-progress .current{border-color:var(--accent);color:var(--ink)}.phrase-path{flex-wrap:wrap;justify-content:center;gap:7px;max-width:600px;margin:0 auto;display:flex}.phrase-path span{background:var(--line);border-radius:50%;width:9px;height:9px}.phrase-path .done{background:var(--ok)}.phrase-path .current{background:var(--warn);outline:3px solid var(--soft)}.notice{color:var(--warn);padding:10px;font-size:13px;line-height:1.5}.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:var(--muted);margin-bottom:9px;font-size:11px;font-weight:600;line-height:1.5}dialog{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:20px;width:min(560px,100% - 24px);max-height:calc(100dvh - 48px);padding:28px;box-shadow:0 22px 90px #23382b30}dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#17301c55}.dialog-header{justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.piece-row{border-top:1px solid var(--line);text-align:left;border-radius:12px;align-items:center;gap:18px;width:100%;padding:22px 0;transition:background .15s;display:flex}.piece-row:hover{background:var(--soft)}.piece-row>span:nth-child(2){overflow-wrap:anywhere;flex:1;min-width:0}.piece-row strong,.piece-row small{display:block}.piece-row strong{font-size:16px;font-weight:500}.piece-row small{color:var(--muted);margin-top:6px;font-size:12px;line-height:1.6}.piece-number{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px}.ear-entry{background:var(--soft);text-align:left;justify-content:space-between;align-items:center;gap:16px;width:100%;margin:20px 0 10px;padding:18px;display:flex}.ear-entry strong,.ear-entry small{display:block}.ear-entry small{color:var(--muted);margin-top:5px;font-size:12px}.setting{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;min-height:64px;font-size:15px;display:flex}.setting input[type=checkbox]{width:24px;height:24px;accent-color:var(--accent)}.setting.stacked{flex-direction:column;align-items:stretch;padding:20px 0}.setting.stacked span{justify-content:space-between;display:flex}.setting input[type=range]{width:100%;accent-color:var(--accent)}details{padding-top:12px;font-size:13px;line-height:1.7}summary{cursor:pointer;min-height:44px;padding:10px 0}details p{color:var(--muted);margin:5px 0 16px}.practice-picker{border:0;flex-wrap:wrap;gap:10px;min-width:0;margin:8px 0;padding:14px 0;display:flex}.practice-picker legend{font-size:14px;font-weight:600}.practice-picker label{border:1px solid var(--line);border-radius:8px;align-items:center;gap:6px;min-height:44px;padding:8px;display:flex}.practice-picker input{accent-color:var(--accent)}.mode-description{color:var(--muted);font-size:14px;line-height:1.5}.badge-list{flex-wrap:wrap;gap:8px;margin:20px 0;display:flex}.badge-list span{background:var(--soft);color:var(--ink);border-radius:20px;padding:10px 14px}.music-filters{flex-wrap:wrap;gap:12px;margin:16px 0;display:flex}.music-filters label{flex:1;gap:6px;min-width:130px;font-size:14px;display:grid}.music-filters select{border:1px solid var(--line);background:var(--paper);width:100%;min-height:44px;color:var(--ink);border-radius:8px;padding:8px}.manage-music{justify-content:space-between;align-items:center;gap:10px;display:flex}.import-dialog{width:min(640px,100vw - 20px);padding:16px}.import-frame{border:0;width:100%;height:min(680px,100dvh - 140px);display:block}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.library-imports{flex-wrap:wrap;gap:8px;display:flex}.continue-card{border:1px solid var(--line);background:var(--soft);overflow-wrap:anywhere;border-radius:14px;margin-bottom:20px;padding:20px}.continue-card h3{margin:0 0 8px;font:24px Georgia,serif}.continue-card p:not(.eyebrow){color:var(--muted);margin-bottom:14px;font-size:13px;line-height:1.5}.piece-row .attempt-summary{background:var(--soft);color:var(--ink);border-radius:8px;padding:4px 8px;display:inline-block}.ear-pool{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px;width:100%;max-width:720px;display:grid}.ear-note{border:1px solid var(--line);background:var(--paper);border-radius:12px;gap:6px;min-width:0;padding:10px 14px;display:grid}.ear-note strong{font:22px Georgia,serif}.ear-note span,.ear-note small{color:var(--muted);font-size:11px}.ear-note progress{width:100%;max-width:140px;height:6px;accent-color:var(--ok)}.ear-note.ready{border-color:var(--ok)}@media (width<=600px){.studio-header{height:56px}.brand{font-size:21px}.header-actions button{padding:8px;font-size:12px}.piano-surface{gap:10px;min-height:calc(100dvh - 66px)}.focus-cue{min-height:170px;padding:18px 0}.focus-controls button{padding:8px 10px}.keyboard-section{border-radius:12px;padding:6px 7px 8px}.focus-studio .piano-keys{height:clamp(220px,37dvh,310px)}dialog{padding:20px}}@media (orientation:landscape) and (height<=500px){.studio-header{height:44px}.piano-surface{gap:4px;min-height:calc(100dvh - 50px);padding-bottom:4px}.focus-cue{flex-flow:wrap;flex:0;justify-content:center;gap:8px;min-height:0;padding:2px 0}.focus-cue>p[role=status]{font-size:21px}.focus-cue .lesson-description,.lesson-progress{display:none}.focus-cue:has(.progression-action){grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 12px;padding:0;display:grid}.focus-cue:has(.progression-action)>h1{grid-column:1;justify-self:center}.focus-cue:has(.progression-action)>p[role=status]{grid-column:1;justify-self:center}.focus-cue>.progression-action{grid-area:1/2/3;min-width:0;padding:4px 8px}.focus-cue .progression-cue{text-overflow:ellipsis;white-space:nowrap;margin:0;overflow:hidden}.keyboard-section{padding:0 6px 2px}.focus-studio .keyboard-section .piano-toolbar,.focus-studio .keyboard-section .keyboard-viewport{padding-bottom:0}.focus-studio .piano-keys{--piano-height:140px;height:140px;min-height:140px}.focus-score{min-width:0;max-height:100px}.piano-surface:has(.focus-score){grid-template-columns:minmax(0,1fr) auto;align-content:start;display:grid}:is(.piano-surface:has(.focus-score)>.focus-cue,.piano-surface:has(.focus-score)>.keyboard-section,.piano-surface:has(.focus-score)>.notice){grid-column:1/-1}.piano-surface:has(.focus-score)>.focus-controls{align-content:center;max-width:300px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.progression-card{border:1px solid var(--line);background:var(--soft);border-radius:12px;margin:16px 0;padding:16px}.progression-card h3{margin:0 0 12px}.stage-progress{gap:4px;margin:12px 0;font-size:13px;display:grid}.stage-progress span,.progression-card small,.progression-cue{color:var(--muted)}.stage-progress progress{width:100%;height:6px;accent-color:var(--accent)}.progression-card small{margin-top:12px;line-height:1.5;display:block}.progression-card p{font-size:14px}.progression-cue{margin:4px 0;font-size:12px}.progression-action{max-width:100%;display:grid}