:root{--bg:#f2f2f7;--bg-card:#fff;--nav-bg:#f9f9f9c7;--label:#000;--label-2:#3c3c4399;--label-3:#3c3c434d;--separator:#3c3c434a;--fill:#78788029;--fill-2:#78788014;--tint:#007aff;--tint-soft:#007aff1f;--green:#34c759;--green-soft:#34c75926;--orange:#ff9500;--orange-soft:#ff950026;--red:#ff3b30;--red-soft:#ff3b301f;--shadow:0 1px 3px #00000012, 0 8px 24px #0000000d;--shadow-sheet:0 -8px 40px #0000002e;--radius:14px;--seg-active-bg:var(--bg-card);--transport-h:170px;--nav-h:100px}@media (prefers-color-scheme:dark){:root{--bg:#000;--bg-card:#1c1c1e;--nav-bg:#161618bf;--label:#fff;--label-2:#ebebf599;--label-3:#ebebf54d;--separator:#545458a6;--fill:#7878805c;--fill-2:#7878802e;--tint:#0a84ff;--tint-soft:#0a84ff38;--green:#30d158;--green-soft:#30d15838;--orange:#ff9f0a;--orange-soft:#ff9f0a38;--red:#ff453a;--red-soft:#ff453a33;--shadow:0 1px 3px #00000080;--shadow-sheet:0 -8px 40px #000000b3;--seg-active-bg:#ffffff24}}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}:where(html,body,body *){touch-action:manipulation}body{background:var(--bg);color:var(--label);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.45}button,select,input{font:inherit;color:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none}a{color:var(--tint);text-decoration:none}.page{min-height:100dvh;padding-bottom:calc(24px + env(safe-area-inset-bottom))}.page-with-transport{padding-bottom:calc(var(--transport-h) + 24px + env(safe-area-inset-bottom))}.page-no-navbar{padding-top:env(safe-area-inset-top)}.container{max-width:900px;margin:0 auto;padding:16px}.large-title{letter-spacing:-.4px;font-size:32px;font-weight:700;line-height:1.15}.subtitle{color:var(--label-2);font-size:15px}.section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--label-2);margin:24px 4px 8px;font-size:13px;font-weight:600}.footnote{color:var(--label-2);font-size:13px}.error-text{color:var(--red);font-size:14px}.navbar{z-index:100;background:var(--nav-bg);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border-bottom:.5px solid var(--separator);padding-top:env(safe-area-inset-top);position:sticky;top:0}.navbar-inner{align-items:center;gap:8px;max-width:900px;margin:0 auto;padding:10px 16px;display:flex}.navbar-title{flex:1;min-width:0}.navbar-title h1{letter-spacing:-.3px;white-space:nowrap;text-overflow:ellipsis;font-size:19px;font-weight:700;overflow:hidden}.navbar-sub{color:var(--label-2);font-size:13px;display:block}.navbar-tabs{max-width:900px;margin:0 auto;padding:0 16px 10px}.nav-btn{min-width:40px;height:40px;color:var(--tint);border-radius:20px;justify-content:center;align-items:center;padding:0 8px;display:inline-flex}.nav-btn:active{background:var(--fill)}.segmented{background:var(--fill);border-radius:9px;width:100%;padding:2px;display:flex}.segmented button{white-space:nowrap;border-radius:7px;flex:1;min-height:32px;padding:0 8px;font-size:14px;font-weight:500;transition:background .18s,box-shadow .18s}.segmented button.seg-active{background:var(--seg-active-bg);font-weight:600;box-shadow:0 1px 4px #0000001f}.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:14px;padding:16px}.row{align-items:center;gap:10px;min-height:44px;display:flex}.row+.row{border-top:.5px solid var(--separator)}.grow{flex:1;min-width:0}.btn{background:var(--tint);color:#fff;border-radius:12px;justify-content:center;align-items:center;gap:6px;min-height:44px;padding:0 18px;font-size:16px;font-weight:600;transition:opacity .15s,transform .1s;display:inline-flex}.btn:disabled{opacity:.4;cursor:default}.btn:not(:disabled):active{opacity:.85;transform:scale(.97)}.btn-gray{background:var(--fill);color:var(--tint)}.btn-danger{background:var(--red-soft);color:var(--red)}.btn-sm{background:var(--fill);min-height:32px;color:var(--tint);white-space:nowrap;border-radius:100px;justify-content:center;align-items:center;gap:4px;padding:0 12px;font-size:14px;font-weight:600;display:inline-flex}.btn-sm:disabled{opacity:.4;cursor:default}.btn-sm.btn-primary,.btn-sm.on{background:var(--tint);color:#fff}.icon-btn{background:var(--fill);width:32px;height:32px;color:var(--label-2);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:15px;display:inline-flex}.file-btn{position:relative;overflow:hidden}.file-btn input{opacity:0;cursor:pointer;font-size:0;position:absolute;inset:0}.toolbar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.chip{background:var(--fill);color:var(--label-2);white-space:nowrap;border-radius:100px;align-items:center;gap:4px;padding:2px 9px;font-size:12px;font-weight:600;display:inline-flex}.chip-green{background:var(--green-soft);color:var(--green)}.chip-orange{background:var(--orange-soft);color:var(--orange)}.chip-red{background:var(--red-soft);color:var(--red)}.chip-tint{background:var(--tint-soft);color:var(--tint)}.chip-purple{color:#af52de;background:#af52de26}.dispute-text{color:#af52de;font-weight:600}.dispute-box{border:1.5px solid #af52de80}.btn-sm.btn-dispute{color:#af52de;background:#af52de26}.input{background:var(--fill-2);border:none;border-radius:10px;width:100%;min-height:44px;padding:10px 12px;font-size:16px}.input:focus{outline:2px solid var(--tint)}select.input-sm{background:var(--fill);border:none;border-radius:8px;min-height:32px;padding:0 8px;font-size:14px}input[type=range]{accent-color:var(--tint)}input[type=number].num{background:var(--fill);border:none;border-radius:8px;width:48px;min-height:32px;padding:0 8px;font-size:14px}.piece-row{cursor:pointer;align-items:center;gap:12px;padding:12px 0;display:flex}.piece-row+.piece-row{border-top:.5px solid var(--separator)}.piece-thumb{object-fit:cover;object-position:top;width:52px;height:70px;box-shadow:var(--shadow);background:#fff;border-radius:6px;flex-shrink:0}.piece-title{font-weight:600}.empty{text-align:center;padding:32px 16px}.empty p{margin-top:8px}.progress{background:var(--fill);border-radius:3px;height:6px;margin-top:10px;overflow:hidden}.progress>div{background:var(--tint);height:100%;transition:width .2s}.system-card{scroll-margin-top:calc(var(--nav-h) + 8px);--fit:calc(100dvh - var(--nav-h) - var(--transport-h) - 16px - 110px);padding:12px}.system-card .score svg{max-height:max(160px, var(--fit))}.system-card.with-scan .scan{max-height:max(100px, calc(var(--fit) * .4));object-fit:contain}.system-card.with-scan .score svg{max-height:max(160px, calc(var(--fit) * .6))}.system-head{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;display:flex}.system-head .grow{font-size:14px;font-weight:600}.scan{background:#fff;border-radius:8px;width:100%;height:auto;display:block}.score{color:#000;background:#fff;border-radius:8px;margin-top:8px;overflow:hidden}.score svg{width:100%;height:auto;display:block}.score g.measure{cursor:pointer}.score g.measure.playing :is(g.note,g.rest,g.beam,g.stem,g.accid,g.dots,g.tie) *{fill:#007aff;stroke:#007aff}.score g.measure.selected :is(g.note,g.rest,g.beam,g.stem,g.accid,g.dots,g.tie) *{fill:#ff9500;stroke:#ff9500}.score g.measure.playing.selected :is(g.note,g.rest,g.beam,g.stem,g.accid,g.dots,g.tie) *{fill:#007aff;stroke:#007aff}.measure-bar{flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;display:flex}.btn-sm.btn-warn{background:var(--orange-soft);color:var(--orange)}.score-placeholder{text-align:center;color:#666;padding:18px;font-size:14px}.warn-list{color:var(--orange);margin-top:8px;font-size:13px}.spinner{border:2px solid var(--tint-soft);border-top-color:var(--tint);border-radius:50%;width:14px;height:14px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.page-wrap{touch-action:pan-y;background:#fff;border-radius:8px;position:relative;overflow:hidden}.page-wrap img{-webkit-user-select:none;user-select:none;-webkit-user-drag:none;width:100%;height:auto;display:block}.rect{border:2px solid var(--tint);background:#007aff14;border-radius:4px;position:absolute}.rect-label{background:var(--tint);color:#fff;border-radius:6px;padding:0 6px;font-size:12px;font-weight:700;position:absolute;top:4px;left:4px}.rect-del{background:var(--red);color:#fff;text-align:center;border-radius:50%;width:26px;height:26px;font-size:14px;line-height:26px;position:absolute;top:4px;right:4px}.handle{touch-action:none;cursor:ns-resize;height:22px;position:absolute}.handle:after{content:"";background:var(--tint);border-radius:3px;height:5px;position:absolute;top:9px;left:0;right:0}.handle-top{top:-12px;left:55%;right:15%}.handle-bottom{bottom:-12px;left:15%;right:55%}.transport{z-index:90;background:var(--nav-bg);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border-top:.5px solid var(--separator);padding-bottom:env(safe-area-inset-bottom);position:fixed;bottom:0;left:0;right:0}.transport-inner{gap:8px;max-width:900px;margin:0 auto;padding:10px 16px;display:grid}.transport-row{align-items:center;gap:10px;display:flex}.play-btn{background:var(--tint);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:20px;display:inline-flex}.play-btn:disabled{opacity:.4}.pos{font-variant-numeric:tabular-nums;min-width:64px;font-weight:600}.tempo{color:var(--label-2);flex:1;align-items:center;gap:6px;min-width:0;font-size:14px;display:flex}.tempo input[type=range]{flex:1;min-width:60px}.focus-seg{max-width:460px}.transport-tools{flex-wrap:wrap;row-gap:6px}.loop{align-items:center;gap:6px;display:flex}.voice-row{grid-template-columns:64px auto 1fr auto;align-items:center;gap:8px;min-height:52px;display:grid}.voice-row+.voice-row{border-top:.5px solid var(--separator)}.voice-name{font-weight:600}.voice-toggles{gap:4px;display:flex}.tog{background:var(--fill);min-width:34px;height:30px;color:var(--label-2);border-radius:8px;font-size:13px;font-weight:700}.tog.on{background:var(--tint);color:#fff}.tog.mute.on{background:var(--red)}.tog.solo.on{background:var(--orange)}@media (max-width:520px){.voice-row{grid-template-columns:1fr auto auto;grid-template-areas:"name toggles inst""vol vol vol";padding:6px 0}.voice-row .voice-name{grid-area:name}.voice-row .voice-toggles{grid-area:toggles}.voice-row select{grid-area:inst}.voice-row input[type=range]{grid-area:vol;width:100%}}.sheet-backdrop{z-index:200;background:#00000059;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.sheet{background:var(--bg);width:100%;max-width:640px;max-height:88dvh;box-shadow:var(--shadow-sheet);padding-bottom:env(safe-area-inset-bottom);border-radius:14px 14px 0 0;overflow:auto}.sheet-header{background:var(--bg);border-bottom:.5px 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10px;font-size:14px}.chip-btn.on{color:#fff;background:#ff9500;font-weight:700}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;display:grid}.tool-grid .tog{height:40px;font-size:18px}details summary{cursor:pointer}