/* THT Kirtan Learning Tools — shared look (matches Harmonium Key Finder). Fonts ship with the plugin. */
@font-face{font-family:'Baloo Paaji 2';font-weight:600;font-display:swap;src:url(fonts/baloo-paaji-2-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'Baloo Paaji 2';font-weight:700;font-display:swap;src:url(fonts/baloo-paaji-2-latin-700-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'Baloo Paaji 2';font-weight:600;font-display:swap;src:url(fonts/baloo-paaji-2-gurmukhi-600-normal.woff2) format('woff2');unicode-range:U+0A00-0A7F,U+200C-200D,U+25CC}
@font-face{font-family:'Baloo Paaji 2';font-weight:700;font-display:swap;src:url(fonts/baloo-paaji-2-gurmukhi-700-normal.woff2) format('woff2');unicode-range:U+0A00-0A7F,U+200C-200D,U+25CC}
@font-face{font-family:'Mukta Mahee';font-weight:400;font-display:swap;src:url(fonts/mukta-mahee-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'Mukta Mahee';font-weight:500;font-display:swap;src:url(fonts/mukta-mahee-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'Mukta Mahee';font-weight:600;font-display:swap;src:url(fonts/mukta-mahee-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:'Mukta Mahee';font-weight:400;font-display:swap;src:url(fonts/mukta-mahee-gurmukhi-400-normal.woff2) format('woff2');unicode-range:U+0A00-0A7F,U+200C-200D,U+25CC}
@font-face{font-family:'Mukta Mahee';font-weight:500;font-display:swap;src:url(fonts/mukta-mahee-gurmukhi-500-normal.woff2) format('woff2');unicode-range:U+0A00-0A7F,U+200C-200D,U+25CC}
@font-face{font-family:'Mukta Mahee';font-weight:600;font-display:swap;src:url(fonts/mukta-mahee-gurmukhi-600-normal.woff2) format('woff2');unicode-range:U+0A00-0A7F,U+200C-200D,U+25CC}
@font-face{font-family:'JetBrains Mono';font-weight:400;font-display:swap;src:url(fonts/jetbrains-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-weight:500;font-display:swap;src:url(fonts/jetbrains-mono-latin-500-normal.woff2) format('woff2')}

:root{
  --surface:#FFFFFF; --well:#F3F6FC; --line:#D5DFEE; --ink:#0E1A2E; --muted:#51607A;
  --blue:#1A4FC4; --blue-deep:#123A94; --blue-soft:#E3ECFC; --sky:#8CC8FF;
  --navy:#0B2152; --navy-2:#173B86;
  --key-w:#FBFCFE; --key-w-edge:#C7D2E3; --key-b:#0F1729; --glow:#4FB3FF; --used:#C6D9F8; --sa:#D93A2B; --err:#B42318; --ok:#16794C;
  --display:'Baloo Paaji 2','Mukta Mahee',system-ui,sans-serif;
  --body:'Mukta Mahee',system-ui,-apple-system,'Segoe UI','Noto Sans Gurmukhi',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:transparent;color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55;padding:4px 16px 8px;-webkit-tap-highlight-color:transparent}html.selfscroll body,html.embed body{padding-left:4px;padding-right:4px}
[hidden]{display:none!important}
.wrap{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:18px}
.wrap>*{min-width:0}
button,select,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
html.selfscroll,html.selfscroll body{height:100%;overflow:hidden}
html.selfscroll body{padding:0}
html.selfscroll .wrap{height:100vh;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:4px 4px 24px}

/* header band */
.top{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px 24px;background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#F2F6FF;border-radius:14px;padding:20px 22px}
.top .back{display:inline-block;color:var(--sky);font-size:.9rem;text-decoration:none;margin-bottom:4px;background:none;border:0;padding:0;cursor:pointer}
.top .back:hover{text-decoration:underline}
h1{font-family:var(--display);font-weight:700;font-size:clamp(1.6rem,4.4vw,2.4rem);line-height:1.1;margin:0;text-wrap:balance}
.lede{margin:6px 0 0;color:#C9D6F2;max-width:62ch}
.swaras{font-family:var(--display);font-weight:600;color:var(--sky);font-size:1.05rem;letter-spacing:.1em;margin-top:8px}
.ver{display:inline-block;font-family:var(--body);font-weight:500;font-size:11px;opacity:.75;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:1px 8px;margin-left:8px;vertical-align:middle}
.lang{display:inline-flex;border:1px solid rgba(255,255,255,.35);border-radius:999px;overflow:hidden;flex:none}
.lang button{border:0;background:transparent;color:#E6EEFF;padding:6px 14px;cursor:pointer;font-size:.95rem}
.lang button[aria-pressed=true]{background:#fff;color:var(--navy)}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px}
.panel h2{font-family:var(--display);font-weight:700;font-size:1.35rem;margin:0 0 10px;color:var(--navy)}
.panel h3{font-size:1.02rem;margin:14px 0 6px;color:var(--navy)}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.spread{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:7px 14px;cursor:pointer;font-weight:500;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.btn:hover{border-color:var(--blue)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-deep)}
.btn.big{font-size:1.15rem;padding:12px 26px;border-radius:999px;font-weight:600}
.btn.on{background:var(--blue-soft);border-color:var(--blue);color:var(--blue-deep)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px 16px;align-content:start}
.opts label,.field{display:grid;gap:3px;font-size:.84rem;color:var(--muted);font-weight:500}
select,.inp{background:var(--well);border:1px solid var(--line);border-radius:8px;padding:6px 8px;font-size:.95rem;color:var(--ink);width:100%}
textarea.inp{font-family:var(--body);line-height:1.5;resize:vertical}
input[type=range]{width:100%;accent-color:var(--blue)}
.check{display:flex;gap:8px;align-items:center;font-size:.92rem;color:var(--ink)}
.check input{accent-color:var(--blue)}
output,.num{font-family:var(--mono);font-size:.8rem;color:var(--ink);font-variant-numeric:tabular-nums}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;flex-wrap:wrap}
.seg button{border:0;background:transparent;padding:6px 12px;cursor:pointer;font-size:.92rem}
.seg button[aria-pressed=true]{background:var(--blue);color:#fff}
.note-tip{background:var(--blue-soft);border-radius:10px;padding:10px 14px;font-size:.9rem;color:var(--navy)}
.warn{background:#FFF4E5;color:#7A4A00;border-radius:10px;padding:10px 14px;font-size:.9rem}

/* sargam display */
.sw{display:inline-grid;grid-template-rows:9px auto auto 9px;justify-items:center;line-height:1.15}
.sw .d{font-size:.65rem;line-height:9px;height:9px;color:var(--blue)}
.sw .g{font-family:var(--display);font-weight:600}
.sw .e{font-size:.8em;font-weight:600;color:var(--blue)}
.komal{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}
.tivra{position:relative}
.tivra::after{content:"";position:absolute;left:50%;top:-5px;width:1.5px;height:6px;background:currentColor}

/* harmonium keyboard */
.case{background:linear-gradient(180deg,var(--navy-2),var(--navy));border-radius:14px;padding:14px 14px 16px}
.case-top{display:flex;justify-content:space-between;align-items:center;color:#D5E1FA;font-size:.85rem;margin:0 2px 10px;gap:10px;flex-wrap:wrap}
.keyscroll{overflow-x:auto;padding-bottom:4px;touch-action:pan-x}
.keys{position:relative;height:160px;margin:0 auto}
.key{position:absolute;top:0;cursor:pointer;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;font-size:.72rem;padding-bottom:6px;user-select:none;-webkit-user-select:none;transition:background .06s;line-height:1.15;touch-action:none}
.key.white{width:34px;height:160px;background:var(--key-w);border:1px solid var(--key-w-edge);border-radius:0 0 5px 5px;color:#3B4A63;z-index:1}
.key.black{width:22px;height:98px;background:var(--key-b);border-radius:0 0 3px 3px;color:#B9C6DD;z-index:2;font-size:.62rem;padding-bottom:4px}
.key.used.white{background:var(--used)}
.key.used.black{background:#28406E}
.key.dim.white{background:#E6EBF3;color:#9AA6BA}
.key.dim.black{background:#3A4150;color:#7F8BA0}
.key.on.white,.key.on.black{background:var(--glow);color:#06203F}
.key .kn{font-family:var(--mono);font-size:.58rem;opacity:.7}
.key .kg{font-family:var(--display);font-weight:600;font-size:.8rem}
.key .kc{font-family:var(--mono);font-size:.55rem;opacity:.55;margin-bottom:2px}
.key.sa::before{content:"";position:absolute;top:10px;left:50%;width:9px;height:9px;margin-left:-4.5px;border-radius:50%;background:var(--sa);box-shadow:0 0 0 2px rgba(255,255,255,.4)}
.key.black.sa::before{top:8px;width:7px;height:7px;margin-left:-3.5px}

/* beat grid (taal) */
.beats{display:grid;gap:8px}
.vibhag{display:flex;gap:6px;flex-wrap:wrap;align-items:stretch}
.vibhag+.vibhag{border-left:2px solid var(--line);padding-left:8px}
.beatrow{display:flex;flex-wrap:wrap;gap:10px 8px}
.beat{min-width:58px;border:1px solid var(--line);border-radius:10px;padding:6px 8px 8px;text-align:center;background:var(--surface);transition:background .05s,transform .05s}
.beat .m{font-family:var(--mono);font-size:.72rem;color:var(--muted);height:16px}
.beat .bg{font-family:var(--display);font-weight:600;font-size:1.25rem;line-height:1.2}
.beat .be{font-size:.78rem;color:var(--blue);font-weight:600}
.beat .bn{font-family:var(--mono);font-size:.62rem;color:var(--muted)}
.beat.sam{border-color:var(--sa)}
.beat.khali{background:var(--well)}
.beat.on{background:var(--blue);border-color:var(--blue);color:#fff;transform:scale(1.04)}
.beat.on .be,.beat.on .m,.beat.on .bn{color:#DCE8FF}

/* cards (hub) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.card{display:grid;gap:4px;align-content:start;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;text-decoration:none;color:inherit;transition:border-color .12s,box-shadow .12s}
.card:hover{border-color:var(--blue);box-shadow:0 2px 10px rgba(26,79,196,.12)}
.card .ic{font-size:1.5rem;line-height:1}
.card b{font-family:var(--display);font-size:1.15rem;color:var(--navy)}
.card span{color:var(--muted);font-size:.88rem}
.group-h{font-family:var(--display);font-size:1.15rem;color:var(--navy);margin:8px 0 2px}

/* modal + toast */
.modal{position:fixed;inset:0;background:rgba(11,33,82,.55);display:grid;place-items:center;z-index:50;padding:16px}
.modal .box{background:#fff;border-radius:14px;padding:18px;max-width:420px;width:100%;display:grid;gap:12px;max-height:90vh;overflow:auto}
.modal img{width:220px;height:220px;justify-self:center;image-rendering:pixelated}
.modal .url{font-family:var(--mono);font-size:.72rem;word-break:break-all;background:var(--well);padding:8px;border-radius:8px}
.toast{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:9px 16px;border-radius:999px;font-size:.92rem;z-index:60;box-shadow:0 4px 18px rgba(0,0,0,.2)}
.foot{color:var(--muted);font-size:.82rem;margin:4px 0 0}
.bigread{font-family:var(--display);font-weight:700;font-size:clamp(3rem,14vw,5.5rem);line-height:1;color:var(--navy)}
@media (max-width:560px){.panel{padding:14px}.top{padding:16px}}
.case .btn{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.case .btn:hover{background:rgba(255,255,255,.22)}
.key.black .kn{display:none}
.key.black .kg{font-size:.72rem}

/* Night reading (shared with the rest of NaamSimar: localStorage sursangatAppearance) */
html.night{--surface:#121c36;--well:#0f1730;--line:#2a3557;--ink:#eef2ff;--muted:#aab5d3;--blue:#5b8cff;--blue-deep:#3f6fe6;--blue-soft:#1c2a57;
  --used:#33508f;--key-w:#e9eef7;--key-w-edge:#8592ad;color-scheme:dark;background:#0b1226}
html.night body{background:#0b1226;color:var(--ink)}
html.night :is(.panel h2,.panel h3,.card b,.group-h,.bigread,.note-tip){color:#ffe2c2}
html.night .note-tip{background:#1c2a57}
html.night .warn{background:#3a2a12;color:#ffdcae}
html.night .modal .box{background:#121c36;color:var(--ink)}
html.night .card:hover{box-shadow:0 2px 14px #0008}
html.night .key.white{color:#26324a}html.night .key.dim.white{background:#c9d1de}
html.night .seg button[aria-pressed=true],html.night .btn.primary{color:#fff}
html.night .btn.on{color:#dfe8ff}
html.night input[type=range]{accent-color:#7aa2ff}
/* contrast pass */
.key.dim.white{color:#56627a}.key.dim.black{color:#c3cbd9}
html.night .key.used.white,html.night .key.used.white .kn{color:#fff}
html.night summary,html.night details{color:var(--ink)}
html.night .btn.primary{background:#2f6bea;border-color:#2f6bea}
[aria-pressed=true] .muted,.on .muted{color:inherit;opacity:.9}
.case .e{color:#a9c8ff}
html.night [style*="color: var(--navy)"],html.night [style*="color:var(--navy)"]{color:#eef2ff!important}
.raag-item.on .muted,.ritem.on .muted,button.on .muted,a.on .muted,.active .muted{color:inherit!important;opacity:.85}
.key .kn{opacity:1;color:#2d3a52}html.night .key.white .kn{color:#26324a}.key.black .kn{color:#c9d3e6}
.btn.on{background:var(--blue);border-color:var(--blue)}.btn.on,.btn.on span{color:#fff}html.night .btn.on{background:#2f6bea}
html.night .seg button[aria-pressed=true]{background:#2f6bea;border-color:#2f6bea}