/* Shared conversation surface; isolated selectors keep player geometry unchanged. */
:root{--nc-ink:#15354d;--nc-muted:#60798b;--nc-blue:#008fcb;--nc-paper:#fff;--nc-pale:#eef7fb;--nc-line:#dceaf1;--nc-red:#b44850;--nc-shadow:0 20px 70px #153d5926}
.nc-preview{padding:9px 16px;border-radius:12px;background:#fff3d9;color:#72572c;text-align:center;font-size:12px;margin:12px auto;max-width:900px}
.nc-hero{text-align:center;padding:30px 14px 24px;color:var(--nc-ink)}.nc-hero h1{font-size:clamp(24px,3.2vw,36px);line-height:1.5;margin:10px 0}.nc-hero p{color:var(--nc-muted);margin:8px 0;line-height:1.8}.nc-eyebrow{font-size:12px;color:#0788ad;letter-spacing:.03em}
.nc-song-grid{display:grid;grid-template-columns:290px minmax(0,1fr);gap:22px;max-width:1060px;margin:0 auto 36px;align-items:start}.nc-ranking{background:var(--nc-paper);border:1px solid var(--nc-line);padding:20px;border-radius:24px;color:var(--nc-ink)}.nc-ranking h2{font-size:16px;margin:0}.nc-section-head{display:flex;justify-content:space-between;gap:10px;align-items:center}.nc-section-head span,.nc-ranking>p{font-size:11px;color:var(--nc-muted);line-height:1.8}.nc-ranking>button{width:100%;margin-top:12px}.nc-rank-item{padding:15px 0;display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--nc-line)}.nc-rank-no{font-size:23px;color:#86b6c9;font-weight:800}.nc-rank-item strong{display:block;font-size:14px}.nc-rank-item small{font-size:11px;color:var(--nc-muted)}
.nc-panel,.nc-ranking,.nc-owner{box-sizing:border-box;font-family:inherit}.nc-panel *,.nc-owner *{box-sizing:border-box}.nc-panel{background:var(--nc-paper);color:var(--nc-ink);border:1px solid var(--nc-line);border-radius:24px;box-shadow:var(--nc-shadow);display:flex;flex-direction:column;overflow:hidden;min-width:0;min-height:420px;height:min(680px,78dvh);font-size:14px;text-align:right;direction:rtl;isolation:isolate}.nc-standalone{max-width:780px;margin:0 auto 36px}.nc-panel h2{font-size:18px;margin:0}.nc-head{display:flex;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--nc-line);flex-shrink:0;background:linear-gradient(120deg,#f8fcff,#e8f7fc)}.nc-head div{flex:1;min-width:0}.nc-head small{display:block;font-size:11px;color:var(--nc-muted);margin-top:4px}.nc-mark{display:grid;place-items:center;width:39px;height:39px;border-radius:14px;color:#008fbc;background:#fff;border:1px solid var(--nc-line);font-size:24px}.nc-close{font-size:24px!important;line-height:1;padding:6px 10px!important}.nc-panel button,.nc-ranking button,.nc-owner button,.nc-entry{cursor:pointer;font:inherit;border:1px solid var(--nc-line);border-radius:12px;padding:9px 12px;color:var(--nc-ink);background:var(--nc-paper);min-height:40px}.nc-panel button:hover,.nc-ranking button:hover,.nc-owner button:hover{background:var(--nc-pale)}.nc-panel button:focus-visible,.nc-panel a:focus-visible,.nc-panel input:focus-visible,.nc-panel textarea:focus-visible{outline:3px solid #48aada;outline-offset:2px}.nc-panel button:disabled{opacity:.55;cursor:wait}.nc-panel .nc-primary{background:#007da9;color:white;border-color:#007da9}.nc-panel .nc-primary:hover{background:#006987}.nc-panel .nc-report,.nc-report{color:var(--nc-red)!important;background:#fff4f4!important;border-color:#f0d6d8!important;font-size:12px}.nc-head .nc-report{min-height:34px;padding:6px 9px;white-space:nowrap}.nc-entry{display:inline-flex;gap:7px;align-items:center;text-decoration:none!important;white-space:nowrap;font-size:13px}.nc-entry-support{color:#006f92!important;background:#e9f8fd!important;border-color:#b7dfed!important;font-weight:700}
.nc-context{padding:10px 18px;background:var(--nc-pale);font-size:12px;border-bottom:1px solid var(--nc-line);line-height:1.8;flex-shrink:0}.nc-context summary{cursor:pointer;font-weight:600}.nc-context input{width:100%;margin:5px 0}.nc-context label{display:block;color:var(--nc-muted)}.nc-context .nc-context-actions{display:flex;gap:6px;margin-top:8px}.nc-context select{max-width:100%;font:inherit;padding:6px;border:1px solid var(--nc-line);border-radius:8px;background:var(--nc-paper);color:var(--nc-ink)}
.nc-feed{padding:20px;overflow:auto;overscroll-behavior:contain;flex:1;min-height:70px;scrollbar-width:thin}.nc-bubble{padding:12px 15px;line-height:1.95;margin:0 0 14px;white-space:pre-wrap;word-break:break-word;background:#f1f7fa;border-radius:17px 4px 17px 17px;max-width:95%;font-size:14px}.nc-bubble.user{background:#dff1fb;border-radius:4px 17px 17px 17px;margin-right:auto}.nc-bubble.system{background:#fff6e7;font-size:12px}.nc-bubble a{color:#0073a1;text-decoration:underline}.nc-source{display:block;font-size:11px}.nc-choices{display:grid;gap:8px;margin:10px 0 18px}.nc-choices button{text-align:right;display:flex;align-items:center;justify-content:space-between;gap:10px}.nc-choices button span{color:var(--nc-blue)}.nc-mini{font-size:11px;color:var(--nc-muted);line-height:1.8}.nc-strip{display:flex;gap:7px;flex-wrap:wrap;padding:10px 16px;border-top:1px solid var(--nc-line);flex-shrink:0}.nc-strip button{font-size:12px;padding:6px 10px;min-height:34px}.nc-compose{padding:10px 14px 8px;display:flex;align-items:flex-end;gap:8px;border-top:1px solid var(--nc-line);flex-shrink:0}.nc-compose textarea{resize:none;min-height:44px;max-height:120px;flex:1;min-width:0;font:inherit;background:var(--nc-pale);border:1px solid var(--nc-line);border-radius:12px;padding:10px 12px;line-height:1.6;color:var(--nc-ink)}.nc-compose .nc-primary{height:44px;min-width:45px;font-size:20px;padding:4px}.nc-status{padding:0 16px 6px;font-size:11px;line-height:1.7;color:var(--nc-muted);min-height:20px;flex-shrink:0}.nc-about{font-size:10px;line-height:1.8;border-top:1px solid var(--nc-line);padding:7px 16px;color:var(--nc-muted);flex-shrink:0}.nc-about summary{cursor:pointer}.nc-about p{margin:7px 0;max-height:95px;overflow:auto}.nc-dialog{border:0;padding:0;background:transparent;width:420px;max-width:100vw;max-height:none;position:fixed;inset:12px 12px 12px auto;margin:0;height:calc(100dvh - 24px);overflow:visible;transform:none!important;direction:rtl}.nc-dialog .nc-panel{height:100%;min-height:0}.nc-dialog::backdrop{background:#102f4a55;backdrop-filter:blur(1px)}.nc-review label{display:block;margin:10px 0 5px;font-size:12px}.nc-review input,.nc-review textarea,.nc-review select{width:100%;font:inherit;color:var(--nc-ink);background:var(--nc-paper);border:1px solid var(--nc-line);border-radius:10px;padding:10px}.nc-review textarea{min-height:120px;resize:vertical}.nc-review .nc-primary{width:100%;margin:12px 0}.nc-file{display:block;margin:10px 0;font-size:12px}.nc-case{border:1px solid var(--nc-line);border-radius:14px;padding:14px;margin:10px 0;background:var(--nc-paper)}.nc-case code{direction:ltr;display:inline-block;letter-spacing:.07em;color:#007da9;font-size:14px}.nc-case h3{font-size:14px;margin:6px 0}.nc-case small{font-size:11px;color:var(--nc-muted)}.nc-case p{font-size:12px;line-height:1.9}.nc-owner{max-width:1100px;margin:0 auto 30px;color:var(--nc-ink)}.nc-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}.nc-metric{border:1px solid var(--nc-line);background:var(--nc-paper);border-radius:18px;padding:18px}.nc-metric strong{font-size:28px;display:block}.nc-metric span{font-size:12px;color:var(--nc-muted)}.nc-topic{background:var(--nc-paper);border:1px solid var(--nc-line);border-radius:18px;padding:18px;margin:12px 0;display:grid;grid-template-columns:1fr auto;gap:12px}.nc-topic h3{font-size:16px;margin:0 0 9px}.nc-tag{display:inline-block;padding:3px 8px;background:#edf5fa;border-radius:7px;font-size:11px;margin:0 0 5px 6px}.nc-tag.urgent{background:#fbe9e9;color:#a6454d}.nc-owner-tools{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.nc-owner-tools select,.nc-owner-tools input{font:inherit;border:1px solid var(--nc-line);border-radius:9px;padding:8px;background:var(--nc-paper);color:var(--nc-ink)}.nc-hidden,[hidden].nc-bubble{display:none!important}
@media(max-width:760px){.nc-song-grid{grid-template-columns:1fr;gap:12px}.nc-ranking{padding:14px;border-radius:18px}.nc-ranking>p{display:none}.nc-ranking #ncTopSongs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.nc-rank-item{display:block;border:0;padding:10px 5px}.nc-rank-no{font-size:16px}.nc-rank-item strong{font-size:12px;overflow-wrap:anywhere}.nc-rank-item small{font-size:10px}.nc-ranking>button{padding:5px;min-height:30px}.nc-hero{padding:18px 8px 15px}.nc-hero p{font-size:13px}.nc-panel{border-radius:18px;height:650px;max-height:85dvh}.nc-head{padding:12px;gap:8px}.nc-head h2{font-size:16px}.nc-feed{padding:14px}.nc-dialog{inset:0;width:100vw;height:100dvh;max-width:none}.nc-dialog .nc-panel{border-radius:0;border:0;max-height:none;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}.nc-metrics{grid-template-columns:repeat(2,1fr)}.nc-topic{grid-template-columns:1fr}.nc-panel .nc-head .nc-report{font-size:10px;padding:6px}.nc-mark{width:32px;height:32px}.nc-standalone{margin-bottom:16px}}
@media(max-height:500px){.nc-dialog .nc-head{padding:7px 12px}.nc-dialog .nc-about{padding:3px 12px}.nc-dialog .nc-strip{padding:5px 12px}.nc-dialog .nc-context{padding:5px 12px}.nc-dialog .nc-compose{padding:5px 12px}.nc-dialog .nc-feed{padding:10px}.nc-dialog .nc-panel{max-height:none}.nc-dialog{inset:0 0 0 auto;height:100dvh;width:min(440px,100vw)}}
html[data-theme="dark"],body.dark,body[data-theme="dark"]{--nc-ink:#e1edf4;--nc-muted:#a1b6c4;--nc-paper:#142631;--nc-pale:#1b3342;--nc-line:#304857;--nc-shadow:0 20px 70px #0005}.dark .nc-head,[data-theme="dark"] .nc-head{background:#1b3342}.dark .nc-bubble,[data-theme="dark"] .nc-bubble{background:#213b4c}.dark .nc-bubble.user,[data-theme="dark"] .nc-bubble.user{background:#14516b}.dark .nc-mark,[data-theme="dark"] .nc-mark{background:#183c50}.dark .nc-bubble.system,[data-theme="dark"] .nc-bubble.system{background:#433821}
.nr-primary-nav a.nc-entry-support{color:#006f92!important}.nc-song-grid .nc-panel,.nc-standalone.nc-panel{height:clamp(420px,calc(100dvh - 310px),680px)}
.nr-piano-heading .nc-score-feedback{flex:0 0 auto!important;width:auto!important;height:24px!important;min-height:24px!important;padding:2px 7px!important;font-size:10px!important;line-height:18px!important;border-radius:7px!important;white-space:nowrap}.guide-header .nc-report{font-size:10px;padding:5px;max-width:95px}.nc-dialog .nc-panel textarea{font:inherit;max-width:100%;border:1px solid var(--nc-line);border-radius:10px;padding:9px;color:var(--nc-ink);background:var(--nc-paper)}
@media(max-width:760px){.nc-song-grid .nc-panel{height:530px;max-height:78dvh}.nc-hero h1{font-size:24px}.nc-preview{margin:8px auto;padding:6px 10px}}
@media(prefers-reduced-motion:reduce){.nc-panel *{scroll-behavior:auto!important}}
body dialog.nc-dialog::backdrop{backdrop-filter:none!important;-webkit-backdrop-filter:none!important;background:#17344938!important}
.nc-panel .nc-close{min-width:40px!important;width:40px!important;height:40px!important;min-height:40px!important;color:var(--nc-ink)!important;background:var(--nc-paper)!important;flex-shrink:0}.nc-panel .nc-compose textarea{background:var(--nc-pale)!important}.nc-panel .nc-compose{margin:0!important;box-shadow:none!important;border-radius:0!important;max-width:none!important}.nc-panel .nc-feed{scrollbar-gutter:stable}
@media(max-width:760px){dialog.nc-dialog{width:100%;max-width:100%;inset:0}.nc-panel .nc-strip{gap:5px}.nc-panel .nc-strip button{font-size:11px}}
.nr-account .nr-header .nr-primary-nav a.nc-entry-support{color:#006f92!important}.nc-header-support{display:none!important}
@media(max-width:767px){.nr-account .nr-header .nc-header-support{display:inline-flex!important;font-size:12px;padding:6px 9px;min-height:36px;border-radius:10px}.nr-account:has(#conversationPage) .nr-account-main{padding-top:12px!important}.nc-hero{padding-top:10px;padding-bottom:10px}.nc-song-grid .nc-panel{height:clamp(350px,calc(100dvh - 430px),520px)}.nc-ranking #ncTopSongs .nc-rank-item{padding:7px 2px}.nc-rank-item strong{line-height:1.6}.nc-rank-item small{line-height:1.5}.nr-account .nc-ranking>button{font-size:12px;min-height:30px;padding:4px;margin-top:4px;line-height:1.5}.nc-ranking .nc-section-head h2{font-size:14px}.nc-ranking .nc-section-head{margin-bottom:3px}}

.nc-panel [hidden]{display:none!important}.nc-sources{font-size:11px;margin:8px 0}.nc-sources summary{cursor:pointer}.nc-ranking .nc-rank-item button{font-size:10px;min-height:30px;padding:5px}.nc-response-report{font-size:10px;min-height:28px;padding:4px 8px}.nc-context label input[type=checkbox]{width:auto}.nc-context label{display:block}.nc-feed>button{margin:4px}.nc-dialog{max-height:var(--nc-visible-height,100dvh)}
@media(max-width:760px){.nc-dialog{top:var(--nc-visible-top,0px);height:var(--nc-visible-height,100dvh)}.nc-conversing .nc-hero{padding:4px}.nc-conversing .nc-hero h1{font-size:18px;margin:0}.nc-conversing .nc-hero p,.nc-conversing .nc-eyebrow{display:none}.nc-conversing .nc-ranking{padding:6px 10px}.nc-conversing .nc-rank-item{padding:2px}.nc-conversing .nc-ranking h2{font-size:12px}.nc-conversing .nc-song-grid .nc-panel{height:65dvh;max-height:none}}
.nc-list-controls{display:grid;grid-template-columns:auto minmax(140px,1fr) auto auto;gap:7px;margin-bottom:12px;align-items:center}.nc-list-controls input,.nc-list-controls select{min-width:0;width:100%;font:inherit;color:var(--nc-ink);background:var(--nc-paper);border:1px solid var(--nc-line);border-radius:10px;padding:8px}.nc-more{width:100%;margin:9px 0}
@media(max-width:760px){.nc-list-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.nc-list-controls input{grid-column:span 2}.nc-list-controls button{grid-column:span 2}}
.nc-owner-tools{display:grid;grid-template-columns:140px 155px minmax(160px,1fr) minmax(160px,1fr) auto;gap:8px;align-items:center}.nc-owner-tools select,.nc-owner-tools input{width:100%!important;min-width:0}.nc-owner-tools button{white-space:nowrap}
@media(max-width:760px){.nc-owner-tools{grid-template-columns:repeat(2,minmax(0,1fr))}.nc-owner-tools button{grid-column:span 2}.nc-metric{padding:12px}}