:root{
  --bg:#0c0c0c;
  --panel:#171717;
  --panel2:#202020;
  --text:#f3f3ef;
  --muted:#a8a8a2;
  --line:#343434;
  --acid:#d8ff3e;
  --pink:#ff3b7f;
  --blue:#39c6ff;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}
body{min-height:100vh}
button,input{font:inherit}
.app{width:min(980px,100%);margin:auto;padding:22px 14px 50px}
.brand{padding:18px 2px 24px}
.eyebrow{font-size:12px;letter-spacing:.19em;color:var(--acid);font-weight:700}
h1{font-size:clamp(29px,6vw,58px);line-height:.95;margin:8px 0 12px;letter-spacing:-.04em}
.version{font-size:.28em;color:var(--muted);vertical-align:top;letter-spacing:0}
.brand p{max-width:650px;color:var(--muted);font-size:15px;line-height:1.45}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:14px}
.section-title{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.section-title span{display:inline-grid;place-items:center;width:29px;height:29px;border:1px solid #555;border-radius:50%;font-size:12px;color:var(--muted)}
.section-title h2{font-size:18px;margin:0}
.camera-stage{
  position:relative;width:min(100%,520px);aspect-ratio:1;margin:0 auto;
  overflow:hidden;border-radius:18px;background:#050505;border:1px solid #303030
}
.camera-stage video,.camera-stage img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover
}
.disc-guide{
  position:absolute;width:86%;height:86%;left:7%;top:7%;border:2px solid rgba(216,255,62,.85);
  border-radius:50%;box-shadow:0 0 0 999px rgba(0,0,0,.17);pointer-events:none
}
.orientation-mark{
  position:absolute;left:50%;top:-9px;transform:translateX(-50%);
  color:var(--acid);font-size:18px;line-height:1
}
.guide-center{
  position:absolute;width:6px;height:6px;border-radius:50%;background:var(--acid);
  left:50%;top:50%;transform:translate(-50%,-50%)
}
.camera-message{
  position:absolute;left:50%;bottom:12px;transform:translateX(-50%);
  width:max-content;max-width:90%;padding:7px 10px;border-radius:8px;background:rgba(0,0,0,.68);
  color:#eee;font-size:12px;line-height:1.35;text-align:center
}
.button-row{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:12px}
.button,.button-row button,.wide,.play{
  border:0;border-radius:999px;padding:12px 17px;font-weight:800;letter-spacing:.03em;
  cursor:pointer;min-height:44px
}
button:disabled{opacity:.35;cursor:not-allowed}
.primary{background:var(--text);color:#111}
.secondary{background:#2b2b2b;color:#eee;border:1px solid #444!important}
.accent{background:var(--acid);color:#111}
.file-button{position:relative;overflow:hidden;display:inline-flex;align-items:center}
.file-button input{position:absolute;opacity:0;pointer-events:none}
.microcopy,.status,.mode-note{font-size:12px;color:var(--muted);line-height:1.4}
.microcopy{text-align:center;margin-top:9px}
.decode-layout{display:grid;grid-template-columns:minmax(220px,1fr) minmax(210px,.6fr);gap:16px;align-items:center}
#gridCanvas,#normalizedCanvas{width:100%;height:auto;border-radius:14px;background:#101010;border:1px solid #303030}
.decode-controls{display:flex;flex-direction:column;gap:17px}
.metric{display:flex;justify-content:space-between;align-items:end;border-bottom:1px solid var(--line);padding-bottom:12px}
.metric-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.metric strong{font-size:34px;color:var(--acid)}
.control{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#ddd}
.control input[type=range]{width:100%;accent-color:var(--acid)}
.legend{display:flex;gap:18px;color:var(--muted);font-size:12px}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px}
.dot.on{background:var(--acid)} .dot.off{border:1px solid #666}
.wide{width:100%}
.status{margin:12px 0 0}
.player{display:grid;grid-template-columns:280px 1fr;gap:22px;align-items:center}
.turntable{display:grid;place-items:center}
.record-visual{
  position:relative;width:240px;height:240px;border-radius:50%;
  background:
    radial-gradient(circle at center,#242424 0 17%,#0b0b0b 17.5% 21%,transparent 21.5%),
    repeating-radial-gradient(circle at center,#111 0 3px,#171717 4px 5px);
  border:2px solid #333;
  box-shadow:0 15px 40px rgba(0,0,0,.35)
}
.record-visual.spinning{animation:spin 3s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.record-label{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:70px;height:70px;border-radius:50%;background:var(--pink);color:#111;font-weight:900;
  display:grid;place-items:center;font-size:21px
}
.playhead{
  position:absolute;left:50%;top:0;width:2px;height:50%;background:var(--acid);
  transform-origin:bottom center;transform:translateX(-50%) rotate(0deg);opacity:.9
}
.transport{display:flex;flex-direction:column;gap:16px}
.play{background:var(--pink);color:white;font-size:18px}
.toggle{font-size:13px;color:#ddd;display:flex;align-items:center;gap:9px}
.toggle input{accent-color:var(--acid)}
.debug-card details summary{cursor:pointer;color:var(--muted)}
.debug-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.debug-grid h3{font-size:13px;color:var(--muted)}
pre{font-size:11px;white-space:pre-wrap;color:#d8d8d3;background:#101010;border:1px solid #303030;padding:10px;border-radius:10px;max-height:420px;overflow:auto}
footer{text-align:center;color:#666;font-size:11px;padding-top:14px}
@media(max-width:720px){
  .decode-layout,.player,.debug-grid{grid-template-columns:1fr}
  .record-visual{width:210px;height:210px}
}