:root{--bg:#12151c;--surface:#1c212b;--surface-2:#262c38;--border:#353d4d;--text:#eef1f6;--muted:#a3acbd;--accent:#f2b84b;--accent-text:#1a1406;--danger:#e5645a;--page-bg:#3a414f;--touch:48px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);-webkit-tap-highlight-color:transparent;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:17px;line-height:1.4}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;margin:0;overflow:hidden}#app{height:100%}[hidden]{display:none!important}h1,h2,p{margin:0}.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.btn{min-width:var(--touch);min-height:var(--touch);border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit;white-space:nowrap;cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation;border-radius:12px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-weight:600;text-decoration:none;display:inline-flex}.btn:active{filter:brightness(1.15);transform:translateY(1px)}.btn:focus-visible,.key:focus-visible,.select:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.btn.danger{color:var(--danger)}.btn.on{border-color:var(--accent);color:var(--accent);background:#3b3120}.btn.wide{min-width:120px}.select{min-height:var(--touch);border:1px solid var(--border);background:var(--surface-2);min-width:80px;color:var(--text);font:inherit;border-radius:12px;padding:0 10px}input[type=range]{height:var(--touch);min-width:120px;accent-color:var(--accent);background:0 0;flex:1;margin:0}.spacer{flex:1}.hint{color:var(--muted);font-size:.9rem}.toolbar{padding:8px 12px;padding-top:max(8px, env(safe-area-inset-top));background:var(--surface);border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:8px;display:flex}.toolbar .title{text-overflow:ellipsis;white-space:nowrap;flex:1 1 0;min-width:60px;font-size:1.2rem;font-weight:700;overflow:hidden}.toolbar .group{align-items:center;gap:6px;display:flex}.logo{border-radius:10px}.library,.keys-screen,.viewer{flex-direction:column;height:100%;display:flex}.library-main{flex:1;padding:16px;overflow:auto}.score-list{gap:10px;max-width:1000px;margin:0 auto;padding:0;list-style:none;display:grid}.score{background:var(--surface);border:1px solid var(--border);border-radius:14px;align-items:center;gap:8px;padding:8px;display:flex}.score-open{min-width:0;min-height:64px;color:var(--text);border-radius:10px;flex-direction:column;flex:1;justify-content:center;padding:6px 10px;text-decoration:none;display:flex}.score-open:active{background:var(--surface-2)}.score-name{text-overflow:ellipsis;white-space:nowrap;font-size:1.1rem;font-weight:700;overflow:hidden}.score-meta{color:var(--muted);font-size:.9rem}.empty{text-align:center;max-width:560px;color:var(--muted);gap:8px;margin:60px auto;display:grid}.empty-title{color:var(--text);font-size:1.3rem;font-weight:700}.storage-note{max-width:1000px;color:var(--muted);text-align:center;margin:16px auto 0;font-size:.85rem}.app-version{color:var(--muted);text-align:center;opacity:.8;margin:8px auto 0;font-size:.75rem}.pages{background:var(--page-bg);touch-action:pan-y;overscroll-behavior:contain;outline:none;flex:1;min-height:0;padding:8px;overflow:auto}.pages.overflow-x{touch-action:pan-x pan-y}.spread{align-items:flex-start;gap:12px;width:max-content;margin:0 auto;display:flex}.pages.centered{align-items:center;display:flex}.pages.centered .spread{margin:auto}canvas.page{background:#fff;display:block;box-shadow:0 2px 10px #00000059}.page-indicator{text-align:center;font-variant-numeric:tabular-nums;min-width:84px;font-weight:600}.pages.bump{animation:.25s bump}@keyframes bump{50%{filter:brightness(1.2)}}.panels{flex-direction:column;display:flex}.panel{background:var(--surface);border-top:1px solid var(--border);gap:6px;padding:8px 12px;display:grid}.panel-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.panel-row .hint{flex:1;min-width:200px}.time{font-variant-numeric:tabular-nums;text-align:right;min-width:130px}.loop-info{color:var(--accent);min-width:70px;font-weight:600}.speed-label{color:var(--muted);min-height:var(--touch);min-width:var(--touch);align-items:center;display:inline-flex}#audio-speed{max-width:220px}#speed-value{font-variant-numeric:tabular-nums;min-width:48px;font-weight:700}.audio-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.start-note{min-width:88px}.viewer .toolbar{gap:6px}.viewer .toolbar .btn{padding:0 10px}.viewer .toolbar .group{gap:4px}.keys-main{flex-direction:column;flex:1;justify-content:center;gap:16px;padding:16px;display:flex;overflow:auto}.note-status{text-align:center;min-height:2.2rem;color:var(--accent);font-size:1.6rem;font-weight:700}.keys-main .hint{text-align:center}.keyboard{--white-w:calc(100% / var(--white-count));--black-w:max(48px, calc(var(--white-w) * .62));-webkit-user-select:none;user-select:none;touch-action:none;width:100%;height:min(300px,45vh);display:flex;position:relative}.keyboard.compact{height:170px}.key{font:inherit;cursor:pointer;touch-action:none;-webkit-user-select:none;user-select:none;border:1px solid #0b0d12;justify-content:center;align-items:flex-end;padding:0 0 10px;display:flex;position:relative}.key.white{min-width:var(--touch);color:#222;background:linear-gradient(#fdfdfd,#e9e9ee);border-radius:0 0 10px 10px;flex:1 1 0}.key.white.c .key-label{font-weight:800}.key.black{z-index:2;height:60%;width:var(--black-w);min-height:var(--touch);top:0;left:calc(var(--white-w) * var(--pos) - var(--black-w) / 2);color:#f3f3f3;background:linear-gradient(#3a3f4b,#111318);border-radius:0 0 8px 8px;font-size:.8rem;position:absolute}.key.down.white{background:linear-gradient(#ffe2a6,#f2b84b)}.key.down.black{background:linear-gradient(#8a6a2a,#5e4515)}.key-label{pointer-events:none;font-size:.85rem}.keyboard.compact .key-label{font-size:.75rem}.dialog{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:16px;width:min(520px,100vw - 32px);padding:20px}.dialog::backdrop{background:#0009}.dialog h2{margin-bottom:12px;font-size:1.2rem}.dialog p{color:var(--muted);margin-bottom:12px}.dialog input[type=text]{width:100%;min-height:var(--touch);font:inherit;border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:10px;margin-bottom:16px;padding:0 12px}.dialog-actions{justify-content:flex-end;gap:10px;display:flex}#toast{opacity:0;color:#fff;pointer-events:none;z-index:10;background:#000c;border-radius:12px;max-width:calc(100vw - 32px);padding:12px 18px;transition:opacity .2s,transform .2s;position:fixed;bottom:24px;left:50%;transform:translate(-50%,40px)}#toast.show{opacity:1;transform:translate(-50%)}@media (orientation:portrait){.keys-screen .keyboard{height:min(380px,38vh)}}.sheet{color:#000;touch-action:pan-x pan-y;background:#fff;outline:none;flex:1;min-height:0;overflow:auto}.osmd{min-height:100%}.segmented .btn{border-radius:0;margin-left:-1px}.segmented .btn:first-child{border-radius:12px 0 0 12px}.segmented .btn:last-child{border-radius:0 12px 12px 0}#xml-tempo{max-width:220px}#xml-tempo-value{font-variant-numeric:tabular-nums;min-width:72px;font-weight:700}