/* Fach — concert-hall tool. No inline styles. */
:root{
  --ink:#17101C;
  --velvet:#241830;
  --velvet-2:#2E2039;
  --ivory:#EFE7DA;
  --ivory-dim:#A597A8;
  --brass:#C9962F;
  --low:#5FBFB0;
  --high:#E0A458;
  --line:rgba(239,231,218,.14);
  --display:"Bodoni Moda",Georgia,serif;
  --body:"Spline Sans",system-ui,sans-serif;
  --mono:"Spline Sans Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(120% 70% at 50% -10%, #3A2545 0%, rgba(58,37,69,0) 60%),
    var(--ink);
  color:var(--ivory);
  font-family:var(--body);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.wrap{max-width:960px;margin:0 auto;padding:28px 20px 80px}

.skip{
  position:absolute;left:-999px;top:8px;
  background:var(--brass);color:#1B1206;
  font-family:var(--body);font-size:14px;font-weight:600;
  padding:8px 14px;z-index:20;text-decoration:none;border-radius:2px;
}
.skip:focus{left:12px}

.lang{
  position:absolute;top:0;right:0;
  display:inline-flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;
}
.lang button{
  background:transparent;color:var(--ivory-dim);border:none;
  padding:6px 10px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  font-family:var(--mono);border-radius:0;
}
.lang button + button{border-left:1px solid var(--line)}
.lang button[aria-pressed="true"]{background:rgba(201,150,47,.16);color:var(--brass)}

.masthead{text-align:center;padding:8px 0 26px;border-bottom:1px solid var(--line);position:relative}
.masthead h1{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(38px,9vw,68px);
  letter-spacing:.02em;
  margin:0;
  line-height:1;
}
.masthead h1 em{font-style:italic;color:var(--brass)}
.masthead p{
  margin:12px auto 0;max-width:44ch;color:var(--ivory-dim);font-size:14.5px;
}
.rule-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--brass);margin:0 0 10px
}

.tuner{
  margin-top:26px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--velvet) 0%,rgba(36,24,48,.4) 100%);
  border-radius:3px;
  padding:26px 22px 20px;
  position:relative;
  overflow:hidden;
}
.tuner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.018) 0 1px,transparent 1px 3px);
}
.readout{display:flex;align-items:flex-end;justify-content:center;gap:14px;min-height:104px}
.note-name{
  font-family:var(--display);font-weight:500;
  font-size:clamp(62px,17vw,110px);line-height:.86;
  letter-spacing:-.01em;
  transition:color .18s ease;
  color:var(--ivory-dim);
}
.note-name.live{color:var(--ivory)}
.note-oct{
  font-family:var(--mono);font-size:22px;color:var(--brass);
  padding-bottom:14px;min-width:1.6ch
}
.silent .note-name{color:#4A3B52}
.hz{
  font-family:var(--mono);font-size:13px;color:var(--ivory-dim);
  text-align:center;margin-top:2px;letter-spacing:.05em
}

.cents{margin:18px auto 0;max-width:420px}
.cents-track{
  position:relative;height:26px;border-left:1px solid var(--line);border-right:1px solid var(--line);
}
.cents-track::before{
  content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line)
}
.cents-center{position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--brass);opacity:.8}
.needle-layer{
  position:absolute;inset:0;width:100%;height:100%;display:block;overflow:visible;pointer-events:none;
}
.needle-rect{fill:var(--ivory)}
.needle-rect.intune{fill:var(--low);filter:drop-shadow(0 0 6px rgba(95,191,176,.8))}
.cents-scale{
  display:flex;justify-content:space-between;font-family:var(--mono);
  font-size:10px;color:var(--ivory-dim);letter-spacing:.1em;margin-top:5px
}
.level{height:2px;background:var(--line);margin:16px auto 0;max-width:420px;overflow:hidden}
.level svg{display:block;width:100%;height:2px}
.level-rect{fill:var(--brass)}

.controls{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px}
.controls-left{justify-content:flex-start;margin-top:20px}
.controls-result{justify-content:flex-start;margin-top:24px}
button{font-family:var(--body);font-size:14px;cursor:pointer;border-radius:2px;transition:.15s}
.btn{
  background:var(--brass);color:#1B1206;border:none;
  padding:12px 22px;font-weight:600;letter-spacing:.01em;
}
.btn:hover{background:#DCA940}
.btn:disabled{opacity:.35;cursor:not-allowed}
.btn-ghost{
  background:transparent;color:var(--ivory);border:1px solid var(--line);padding:11px 18px;
}
.btn-ghost:hover{border-color:var(--ivory-dim);background:rgba(239,231,218,.05)}
:focus-visible{outline:2px solid var(--low);outline-offset:3px}

.stage{
  margin-top:30px;border:1px solid var(--line);border-radius:3px;
  background:rgba(36,24,48,.5);padding:22px;
}
.stage-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.stage-head h2{
  font-family:var(--display);font-weight:400;font-size:27px;margin:0;letter-spacing:.01em
}
.stage-head .tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;
  padding:3px 9px;border:1px solid var(--line);color:var(--ivory-dim)
}
.stage p.hint{color:var(--ivory-dim);font-size:14px;margin:10px 0 0;max-width:56ch}

.hold{margin-top:18px}
.hold-bar{height:3px;background:rgba(239,231,218,.1);overflow:hidden}
.hold-bar svg{display:block;width:100%;height:3px}
.hold-rect{fill:var(--low)}
.hold-label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ivory-dim);margin-top:8px}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;min-height:36px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:13px;
  border:1px solid var(--line);padding:6px 8px 6px 11px;color:var(--ivory);
  background:rgba(239,231,218,.04);
  animation:pop .28s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(4px) scale(.94)}to{opacity:1;transform:none}}
.chip.extreme{border-color:var(--brass);color:var(--brass);background:rgba(201,150,47,.08)}
.chip button{
  background:none;border:none;color:inherit;opacity:.45;font-size:15px;line-height:1;padding:2px 3px
}
.chip button:hover{opacity:1}
.chips-empty{font-size:13.5px;color:var(--ivory-dim);font-style:italic}

.verdict{text-align:center;padding:8px 0 4px}
.verdict .eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--ivory-dim)
}
.verdict h2{
  font-family:var(--display);font-weight:400;font-style:italic;
  font-size:clamp(40px,10vw,64px);margin:8px 0 6px;color:var(--brass);line-height:1
}
.verdict .span{font-family:var(--mono);font-size:13px;color:var(--ivory-dim);letter-spacing:.06em}
.verdict .blurb{max-width:46ch;margin:14px auto 0;font-size:14.5px;color:var(--ivory)}
.verdict .agree{
  max-width:52ch;margin:12px auto 0;font-size:13.5px;color:var(--ivory);
}
.verdict .agree.disagree{color:var(--high)}
.relative-hint{
  text-align:center;margin:18px 0 0;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--ivory-dim);text-transform:uppercase;
}

.alts{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:10px}
.alt{
  border:1px solid var(--line);padding:9px 13px;min-width:132px;text-align:left
}
.alt b{display:block;font-weight:500;font-size:14px}
.alt span{font-family:var(--mono);font-size:11px;color:var(--ivory-dim);letter-spacing:.08em}

.chart-scroll{overflow-x:auto;margin-top:28px;padding-bottom:6px}
.chart{min-width:560px;position:relative}
.band-row{position:relative;height:22px;margin-bottom:5px}
.band-row .lbl{
  position:absolute;left:0;top:0;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ivory-dim);line-height:22px;z-index:3;
  padding-left:6px;text-shadow:0 0 6px var(--ink)
}
.band{
  position:absolute;top:4px;height:14px;border:1px solid rgba(239,231,218,.22);
  background:rgba(239,231,218,.05)
}
.band.best{border-color:var(--brass);background:rgba(201,150,47,.22)}
.bands.filter-lower .fach-upper,
.bands.filter-upper .fach-lower{display:none}
.user-svg{
  position:absolute;left:0;right:0;top:0;width:100%;height:30px;
  overflow:visible;pointer-events:none;
}
.userband-rect{filter:drop-shadow(0 0 10px rgba(224,164,88,.35))}
.user-row{height:30px;margin-bottom:12px;position:relative}
.user-row .cap{
  position:absolute;top:22px;font-family:var(--mono);font-size:10.5px;color:var(--ivory)
}
.user-row .cap.l{transform:translateX(-50%);color:var(--low)}
.user-row .cap.r{transform:translateX(-50%);color:var(--high)}

.keys{position:relative;height:64px;margin-top:14px}
.wk{
  position:absolute;top:0;height:64px;background:#E8E0D3;border:1px solid #17101C;
  border-radius:0 0 2px 2px
}
.bk{
  position:absolute;top:0;height:40px;background:#1E1626;border:1px solid #0C0810;
  border-radius:0 0 2px 2px;z-index:2
}
.wk.on{background:var(--brass)}
.bk.on{background:#7A5A16;border-color:#5C440F}
.wk.now,.bk.now{background:var(--low);box-shadow:0 0 14px rgba(95,191,176,.9)}
.octlabels{position:relative;height:16px;margin-top:5px}
.octlabels span{
  position:absolute;transform:translateX(-50%);font-family:var(--mono);font-size:10px;
  color:var(--ivory-dim);letter-spacing:.06em
}

.filter-wrap{text-align:center;margin-top:26px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;margin-top:4px}
.seg button{
  background:transparent;color:var(--ivory-dim);border:none;padding:8px 14px;font-size:13px;border-radius:0
}
.seg button+button{border-left:1px solid var(--line)}
.seg button[aria-pressed="true"]{background:rgba(201,150,47,.16);color:var(--brass)}

.foot{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--ivory-dim);font-size:13px;max-width:62ch
}
.foot b{color:var(--ivory);font-weight:500}
.err{
  margin-top:18px;border-left:2px solid #C4626B;padding:10px 14px;font-size:14px;
  background:rgba(196,98,107,.08);color:#F0CDD0
}
.noscript-msg{margin:18px 20px}
.hide{display:none !important}

.site-foot{
  margin-top:40px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:baseline;
  justify-content:space-between;color:var(--ivory-dim);font-size:12.5px
}
.site-foot a{color:var(--brass);text-decoration:none}
.site-foot a:hover{text-decoration:underline}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}
@media(max-width:520px){
  .wrap{padding:20px 14px 60px}
  .stage{padding:18px 14px}
  .lang{position:static;margin:0 auto 12px}
}

/* --- generated keyboard geometry (C2–C6), no inline styles --- */
.key-36{left:0.0000%;width:3.4483%}
.at-36{left:1.7241%}
.key-37{left:2.4138%;width:2.0690%}
.at-37{left:3.4483%}
.key-38{left:3.4483%;width:3.4483%}
.at-38{left:5.1724%}
.key-39{left:5.8621%;width:2.0690%}
.at-39{left:6.8966%}
.key-40{left:6.8966%;width:3.4483%}
.at-40{left:8.6207%}
.key-41{left:10.3448%;width:3.4483%}
.at-41{left:12.0690%}
.key-42{left:12.7586%;width:2.0690%}
.at-42{left:13.7931%}
.key-43{left:13.7931%;width:3.4483%}
.at-43{left:15.5172%}
.key-44{left:16.2069%;width:2.0690%}
.at-44{left:17.2414%}
.key-45{left:17.2414%;width:3.4483%}
.at-45{left:18.9655%}
.key-46{left:19.6552%;width:2.0690%}
.at-46{left:20.6897%}
.key-47{left:20.6897%;width:3.4483%}
.at-47{left:22.4138%}
.key-48{left:24.1379%;width:3.4483%}
.at-48{left:25.8621%}
.key-49{left:26.5517%;width:2.0690%}
.at-49{left:27.5862%}
.key-50{left:27.5862%;width:3.4483%}
.at-50{left:29.3103%}
.key-51{left:30.0000%;width:2.0690%}
.at-51{left:31.0345%}
.key-52{left:31.0345%;width:3.4483%}
.at-52{left:32.7586%}
.key-53{left:34.4828%;width:3.4483%}
.at-53{left:36.2069%}
.key-54{left:36.8966%;width:2.0690%}
.at-54{left:37.9310%}
.key-55{left:37.9310%;width:3.4483%}
.at-55{left:39.6552%}
.key-56{left:40.3448%;width:2.0690%}
.at-56{left:41.3793%}
.key-57{left:41.3793%;width:3.4483%}
.at-57{left:43.1034%}
.key-58{left:43.7931%;width:2.0690%}
.at-58{left:44.8276%}
.key-59{left:44.8276%;width:3.4483%}
.at-59{left:46.5517%}
.key-60{left:48.2759%;width:3.4483%}
.at-60{left:50.0000%}
.key-61{left:50.6897%;width:2.0690%}
.at-61{left:51.7241%}
.key-62{left:51.7241%;width:3.4483%}
.at-62{left:53.4483%}
.key-63{left:54.1379%;width:2.0690%}
.at-63{left:55.1724%}
.key-64{left:55.1724%;width:3.4483%}
.at-64{left:56.8966%}
.key-65{left:58.6207%;width:3.4483%}
.at-65{left:60.3448%}
.key-66{left:61.0345%;width:2.0690%}
.at-66{left:62.0690%}
.key-67{left:62.0690%;width:3.4483%}
.at-67{left:63.7931%}
.key-68{left:64.4828%;width:2.0690%}
.at-68{left:65.5172%}
.key-69{left:65.5172%;width:3.4483%}
.at-69{left:67.2414%}
.key-70{left:67.9310%;width:2.0690%}
.at-70{left:68.9655%}
.key-71{left:68.9655%;width:3.4483%}
.at-71{left:70.6897%}
.key-72{left:72.4138%;width:3.4483%}
.at-72{left:74.1379%}
.key-73{left:74.8276%;width:2.0690%}
.at-73{left:75.8621%}
.key-74{left:75.8621%;width:3.4483%}
.at-74{left:77.5862%}
.key-75{left:78.2759%;width:2.0690%}
.at-75{left:79.3103%}
.key-76{left:79.3103%;width:3.4483%}
.at-76{left:81.0345%}
.key-77{left:82.7586%;width:3.4483%}
.at-77{left:84.4828%}
.key-78{left:85.1724%;width:2.0690%}
.at-78{left:86.2069%}
.key-79{left:86.2069%;width:3.4483%}
.at-79{left:87.9310%}
.key-80{left:88.6207%;width:2.0690%}
.at-80{left:89.6552%}
.key-81{left:89.6552%;width:3.4483%}
.at-81{left:91.3793%}
.key-82{left:92.0690%;width:2.0690%}
.at-82{left:93.1034%}
.key-83{left:93.1034%;width:3.4483%}
.at-83{left:94.8276%}
.key-84{left:96.5517%;width:3.4483%}
.at-84{left:98.2759%}
.band-bass{left:8.6207%;width:48.2759%}
.band-baritone{left:18.9655%;width:48.2759%}
.band-tenor{left:25.8621%;width:48.2759%}
.band-countertenor{left:39.6552%;width:41.3793%}
.band-contralto{left:36.2069%;width:48.2759%}
.band-mezzo{left:43.1034%;width:48.2759%}
.band-soprano{left:50.0000%;width:48.2759%}

.live-keys{position:relative;z-index:1;height:48px;margin:18px 0 0;opacity:.95}
.tuner.silent .live-keys{opacity:.35}
.wrap-keys{pointer-events:none}
.live-keys .wk{height:48px}
.live-keys .bk{height:30px}
.tuner{overflow:visible}

.update{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border:1px solid var(--brass);background:rgba(201,150,47,.1);
  padding:12px 14px;margin-bottom:18px;border-radius:3px
}
.update span{font-size:14px;color:var(--ivory)}
.profile-grid{display:grid;grid-template-columns:1fr 8rem;gap:14px;margin-top:18px}
@media(max-width:520px){.profile-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;margin-top:14px}
.field-label,.field span{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ivory-dim)}
.field input{
  background:rgba(239,231,218,.05);border:1px solid var(--line);color:var(--ivory);
  font-family:var(--body);font-size:16px;padding:10px 12px;border-radius:2px
}
.field input:focus{border-color:var(--brass);outline:none}
.explain{max-width:52ch;margin:16px auto 0;font-size:14.5px;color:var(--ivory);line-height:1.55}
.linkish{
  background:none;border:none;color:var(--brass);padding:0;font-size:12.5px;
  font-family:var(--body);text-decoration:underline;cursor:pointer
}