:root{
  --bg1:#020617;--bg2:#0f172a;--bg3:#111827;--text:#f8fafc;--muted:#cbd5e1;--muted2:#94a3b8;
  --glass:rgba(255,255,255,.06);--line:rgba(255,255,255,.12);--cyan:#22d3ee;--cyan2:#67e8f9;--rose:#f43f5e;--emerald:#34d399
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);
background:radial-gradient(circle at top, rgba(34,211,238,.16), transparent 28%),linear-gradient(180deg,var(--bg1),var(--bg2) 45%,var(--bg3));min-height:100vh}
button,select,input,summary{font:inherit}
.app-shell{max-width:1200px;margin:0 auto;padding:20px}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap;margin-bottom:16px}
h1,h2,h3,p{margin:0}.topbar p{color:var(--muted);margin-top:6px}
.tabs{display:inline-flex;border:1px solid var(--line);background:var(--glass);padding:4px;border-radius:18px;backdrop-filter:blur(10px)}
.tab{border:0;background:transparent;color:var(--muted);padding:10px 16px;border-radius:14px;cursor:pointer;font-weight:700}
.tab.active{background:var(--cyan);color:#082f49}
.view{display:none}.view.active{display:block}
.grid-main{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
.panel{border:1px solid var(--line);background:var(--glass);border-radius:28px;padding:20px;box-shadow:0 20px 40px rgba(0,0,0,.28)}
.glass{backdrop-filter:blur(16px)}
.panel-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap;margin-bottom:16px}
.instrument-buttons{display:flex;gap:8px;flex-wrap:wrap}
.instrument-btn,.btn,.reference-btn{border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;transition:.15s ease}
.instrument-btn{padding:10px 14px;font-weight:700}.instrument-btn.active{background:var(--cyan);color:#082f49;border-color:transparent}
.advanced-panel{margin-bottom:16px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.04);overflow:hidden}
.advanced-panel summary{cursor:pointer;list-style:none;padding:14px 16px;font-weight:800;color:var(--text)}
.advanced-panel summary::-webkit-details-marker{display:none}
.advanced-grid{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;padding:0 16px 12px;align-items:end}
.field label,.metro-controls label{display:block;font-weight:700;margin-bottom:8px}
.field select,.metro-controls select{background:#020617;border:1px solid var(--line);color:var(--text);padding:10px 12px;border-radius:14px;width:100%}
.toggle{display:flex;gap:10px;align-items:center;font-weight:700;color:var(--text);padding:10px 12px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.05)}
.analysis-lines{display:grid;gap:8px;padding:0 16px 16px;color:var(--muted);font-size:14px}.analysis-lines strong{color:var(--text);display:inline-block;min-width:64px}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.stat-card{border:1px solid var(--line);background:rgba(255,255,255,.05);padding:18px;border-radius:24px}
.stat-label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted2)}
.stat-main{margin-top:12px;font-size:56px;line-height:1;font-weight:900}.stat-main.medium{font-size:42px}.stat-sub{margin-top:10px;color:var(--muted)}
.meter-wrap{margin-top:16px}.meter-head,.reference-head{display:flex;justify-content:space-between;gap:12px;align-items:center}.meter-head span:last-child{color:var(--muted)}
.cent-meter{position:relative;height:68px;margin-top:10px;border-radius:22px;border:1px solid var(--line);background:rgba(255,255,255,.05);overflow:hidden}
.tune-zone{position:absolute;left:50%;top:0;transform:translateX(-50%);height:100%;width:18%;background:rgba(52,211,153,.2)}
.tune-zone.active{background:rgba(52,211,153,.45);box-shadow:0 0 28px rgba(52,211,153,.35)}
.center-line{position:absolute;left:50%;top:8px;transform:translateX(-50%);height:40px;width:1px;background:var(--cyan2)}
.needle{position:absolute;top:12px;height:28px;width:6px;left:50%;transform:translateX(-50%);border-radius:999px;background:white;box-shadow:0 0 16px rgba(255,255,255,.35)}
.meter-scale{position:absolute;left:20px;right:20px;bottom:10px;display:flex;justify-content:space-between;font-size:12px;color:var(--muted2)}
.meter-foot{margin-top:8px;color:var(--muted);font-size:14px}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.badge{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid var(--line);font-size:14px}.badge.subtle{color:var(--muted)}
.controls-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn{padding:14px 18px;font-weight:800}.btn.primary{background:var(--cyan);color:#082f49;border-color:transparent}.btn.primary:hover,.instrument-btn.active:hover{filter:brightness(1.06)}
.btn.danger{background:var(--rose);border-color:transparent}.btn.subtle-btn{background:rgba(255,255,255,.05)}
.error{margin-top:14px;padding:12px 14px;border-radius:18px;background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.3);color:#fecdd3}.hidden{display:none !important}
.reference-panel{margin-top:16px;border:1px solid var(--line);background:rgba(255,255,255,.04);padding:16px;border-radius:24px}.reference-head span{color:var(--muted)}
.reference-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.reference-btn{padding:14px;text-align:left}.reference-btn .top{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted2)}
.reference-btn .main{margin-top:4px;font-size:22px;font-weight:800}.reference-btn .sub{margin-top:4px;color:var(--muted);font-size:14px}
.reference-btn.active{border-color:rgba(34,211,238,.8);background:rgba(34,211,238,.12);box-shadow:0 0 20px rgba(34,211,238,.16)}
.band-sequence-wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;padding:12px 14px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.04)}
.sequence-status{color:var(--muted);font-size:14px}
.side-stack{display:flex;flex-direction:column;gap:16px}
.wheel-panel{display:flex;flex-direction:column;align-items:center}
.wheel-wrap{position:relative;margin-top:8px;width:320px;height:320px;display:flex;align-items:center;justify-content:center}
.pitch-wheel{position:relative;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle, #020617 0 44%, rgba(255,255,255,.04) 45% 100%);border:1px solid var(--line)}
.wheel-label{position:absolute;left:50%;top:50%;width:58px;height:58px;margin:-29px 0 0 -29px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:#e2e8f0;font-size:11px;font-weight:800;transition:.12s ease;text-align:center;line-height:1.05;border:1px solid transparent}
.wheel-label small{font-size:9px;color:var(--muted2);font-weight:700}
.wheel-label.active{background:var(--cyan);color:#082f49;border-color:transparent;box-shadow:0 0 20px rgba(34,211,238,.22)}
.wheel-label.active small{color:#164e63}
.wheel-pointer{position:absolute;left:50%;top:0;transform:translateX(-50%);width:0;height:0;border-left:11px solid transparent;border-right:11px solid transparent;border-bottom:18px solid var(--cyan2);filter:drop-shadow(0 0 10px rgba(103,232,249,.45));z-index:2}
.wheel-center{position:absolute;width:110px;height:110px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.18);z-index:1}
.wheel-note{font-size:20px;font-weight:900;color:#cffafe;text-align:center}.wheel-freq{font-size:12px;color:var(--muted);margin-top:6px}
.side-card{min-height:140px}.side-card p{margin-top:10px;color:var(--muted);line-height:1.55}
.metro-controls{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.metro-controls input[type=range]{width:100%}
.beat-panel p{margin-top:16px;color:var(--muted);line-height:1.55}
.beat-pattern{display:flex;flex-wrap:wrap;gap:10px}
.beat{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:rgba(255,255,255,.05);font-weight:800;color:var(--muted)}
.beat.accent{border-color:rgba(34,211,238,.6);background:rgba(34,211,238,.10);color:#a5f3fc}.beat.active{background:#fff;color:#020617}.beat.accent.active{background:var(--cyan);color:#082f49}
@media (max-width: 980px){ .grid-main{grid-template-columns:1fr} }
@media (max-width: 840px){ .advanced-grid{grid-template-columns:1fr 1fr} .toggle{grid-column:1/-1} }
@media (max-width: 720px){ .stats-grid,.metro-controls,.reference-grid{grid-template-columns:1fr 1fr} .stat-main{font-size:44px} }
@media (max-width: 520px){ .app-shell{padding:14px} .stats-grid,.metro-controls,.reference-grid,.advanced-grid{grid-template-columns:1fr} .wheel-wrap{width:280px;height:280px} .pitch-wheel{width:260px;height:260px} .wheel-label{width:52px;height:52px;margin:-26px 0 0 -26px;font-size:10px} .wheel-center{width:96px;height:96px} .band-sequence-wrap{flex-direction:column;align-items:stretch} }


/* UI refresh */
.tuner-layout{align-items:start}
.primary-panel .section-help{
  margin-top:8px;
  color:var(--muted);
  line-height:1.5;
  max-width:64ch;
  font-size:15px;
}
.hero-readout{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:14px;
  margin-top:4px;
}
.hero-note-card{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border-radius:28px;
  padding:22px;
  min-height:220px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
}
.hero-label{
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted2);
}
.hero-note{
  margin-top:10px;
  font-size:92px;
  line-height:.95;
  font-weight:900;
  letter-spacing:-.04em;
}
.hero-status{
  margin-top:14px;
  font-size:18px;
  color:var(--muted);
  font-weight:700;
}
.hero-side{
  display:grid;
  grid-template-rows:1fr 1fr;
  gap:12px;
}
.mini-stat{
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  border-radius:24px;
  padding:18px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.mini-value{
  margin-top:12px;
  font-size:46px;
  line-height:1;
  font-weight:900;
  letter-spacing:-.03em;
}
.mini-sub{
  margin-top:10px;
  color:var(--muted);
  font-size:14px;
}
.meter-wrap-main{
  margin-top:18px;
}
.main-controls{
  margin-top:18px;
}
.helper-strip{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.advanced-panel{
  margin-top:18px;
}
.advanced-panel summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:relative;
  padding-right:44px;
}
.advanced-panel summary::after{
  content:"▾";
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  color:var(--muted);
  font-size:18px;
  transition:transform .15s ease;
}
.advanced-panel[open] summary::after{
  transform:translateY(-50%) rotate(180deg);
}
.summary-hint{
  color:var(--muted);
  font-size:13px;
  font-weight:600;
  margin-right:18px;
}
.analysis-lines{
  border-top:1px solid var(--line);
  margin-top:4px;
  padding-top:14px;
}
.analysis-lines #badge-detector{
  border:none;
  padding:0;
  background:transparent;
  color:var(--muted);
  font-size:14px;
}
.wheel-help{
  margin-top:8px;
  color:var(--muted);
  line-height:1.5;
  text-align:center;
  font-size:14px;
}
.side-card-simple{
  min-height:auto;
}
.tip-list{
  margin:10px 0 0 18px;
  padding:0;
  color:var(--muted);
  line-height:1.7;
}
.tip-list li + li{
  margin-top:2px;
}
.reference-grid{
  margin-top:14px;
}
.reference-btn .main{
  font-size:20px;
}
@media (max-width: 980px){
  .hero-readout{
    grid-template-columns:1fr;
  }
  .hero-side{
    grid-template-columns:1fr 1fr;
    grid-template-rows:none;
  }
}
@media (max-width: 640px){
  .hero-note{
    font-size:72px;
  }
  .hero-note-card{
    min-height:180px;
    padding:18px;
  }
  .hero-side{
    grid-template-columns:1fr;
  }
  .mini-value{
    font-size:38px;
  }
  .summary-hint{
    display:none;
  }
}