:root{
    --bg: var(--tbc-bg);
    --panel: var(--tbc-panel);
    --panel-alt: var(--tbc-panel-raised);
    --border: var(--tbc-border);
    --border-soft: var(--tbc-border-soft);
    --text: var(--tbc-ink);
    --text-muted: var(--tbc-ink-muted);
    --text-faint: var(--tbc-ink-faint);
    --amber: var(--tbc-glow);
    --amber-dim: var(--tbc-glow-dim);
    --copper: var(--tbc-glow-dim);
    --readout: var(--tbc-safe);
    --readout-dim: var(--tbc-safe);
    --danger: var(--tbc-danger);
    --radius: var(--tbc-radius);
    --font-head: var(--tbc-font-display);
    --font-body: var(--tbc-font-body);
    --font-mono: var(--tbc-font-mono);
  }
  *{box-sizing:border-box;}
  body{
    margin:0;
    background:var(--bg);
    background-image:
      radial-gradient(ellipse at top, rgba(232,137,47,0.05), transparent 55%),
      repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
    color:var(--text);
    font-family:var(--font-body);
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }
  .ct-wrap{
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(120% 140% at 15% -10%, rgba(44, 33, 23, 0.8) 0%, transparent 55%),
    linear-gradient(175deg, rgba(34, 27, 21, 0.8) 0%, rgba(28, 23, 18, 0.8) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 30px 60px -30px rgba(0, 0, 0, 0.6);
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 28px 24px;
  box-sizing: border-box;
  position: relative;
}
  .ct-eyebrow{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--amber); margin:0 0 6px; }
  .ct-title{ font-family:var(--font-head); font-weight:600; font-size:26px; line-height:1.15; margin:0 0 6px; color:var(--text); }
  .ct-sub{ color:var(--text-muted); font-size:13.5px; margin:0; max-width:100ch; }

  .ct-tabs{ display:flex; gap:6px; border-bottom:1px solid var(--border); margin-bottom:28px; flex-wrap:wrap; }
  .ct-tab{
    appearance:none; background:none; border:none; color:var(--text-muted);
    font-family:var(--font-body); font-weight:600; font-size:14.5px; padding:12px 4px;
    margin-right:22px; cursor:pointer; position:relative; border-bottom:2px solid transparent;
    transition:color 0.15s ease;
  }
  .ct-tab:hover{ color:var(--text); }
  .ct-tab.active{ color:var(--amber); border-bottom-color:var(--amber); }

  .ct-panel{ display:none; }
  .ct-panel.active{ display:block; animation:cfadein 0.25s ease; }
  @keyframes cfadein{ from{opacity:0; transform:translateY(4px);} to{opacity:1; transform:none;} }

  .ct-panel-head{ font-family:var(--font-head); font-size:20px; font-weight:700; margin:0 0 6px; }
  .ct-panel-desc{ color:var(--text-muted); font-size:14.5px; margin:0 0 22px; max-width:620px; }

  .ct-card{ background:var(--panel); border:1px solid var(--border-soft); border-radius:var(--radius); padding:26px; }

  .ct-segmented{
    display:inline-flex; background:var(--panel-alt); border:1px solid var(--border);
    border-radius:8px; padding:3px; margin-bottom:22px;
  }
  .ct-segmented button{
    appearance:none; border:none; background:none; color:var(--text-muted);
    font-family:var(--font-mono); font-size:13px; font-weight:700; padding:8px 16px;
    border-radius:6px; cursor:pointer; transition:background 0.15s ease, color 0.15s ease;
  }
  .ct-segmented button.active{ background:var(--amber); color:#20160a; }

  .ct-cap-stage{
    background:var(--panel-alt); border:1px solid var(--border); border-radius:8px;
    padding:20px 10px; margin-bottom:22px;
  }
  .ct-cap-stage svg{ width:100%; height:auto; display:block; }

  .ct-band{ margin-bottom:20px; padding-bottom:20px; border-bottom:1px solid var(--border-soft); }
  .ct-band:last-child{ border-bottom:none; margin-bottom:0; padding-bottom:0; }
  .ct-band-label{
    display:flex; justify-content:space-between; align-items:baseline; font-family:var(--font-mono);
    font-size:12px; letter-spacing:0.06em; text-transform:uppercase; color:var(--text-faint); margin-bottom:10px;
  }
  .ct-band-current{ font-family:var(--font-body); font-weight:600; font-size:13.5px; text-transform:none; letter-spacing:0; color:var(--text); }
  .ct-swatches{ display:flex; flex-wrap:wrap; gap:8px; }
  .ct-swatch{
    width:34px; height:34px; border-radius:7px; border:2px solid transparent; cursor:pointer;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.35); transition:transform 0.1s ease, border-color 0.1s ease; position:relative;
  }
  .ct-swatch:hover{ transform:translateY(-2px); }
  .ct-swatch.selected{ border-color:var(--amber); box-shadow: inset 0 0 0 1px rgba(0,0,0,0.35), 0 0 0 3px rgba(232,137,47,0.18); }
  .ct-swatch.selected::after{ content:''; position:absolute; inset:0; border-radius:5px; box-shadow: inset 0 0 0 2px rgba(0,0,0,0.5); }

  .ct-readout{ text-align:center; padding:22px 16px 24px; background:var(--panel-alt); border:1px solid var(--border); border-radius:8px; }
  .ct-readout-value{
    font-family:var(--font-mono); font-size:clamp(30px, 5.6vw, 40px); font-weight:700; color:var(--readout);
    text-shadow:0 0 18px rgba(127,214,138,0.25); letter-spacing:0.01em;
  }
  .ct-readout-sub{ font-family:var(--font-mono); font-size:13px; color:var(--text-faint); margin-top:6px; }
  .ct-readout-row{
    display:flex; justify-content:center; gap:22px; margin-top:10px; flex-wrap:wrap;
    font-family:var(--font-mono); font-size:13px; color:var(--text-muted);
  }
  .ct-readout-row b{ color:var(--text); font-weight:600; }

  .ct-grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
  @media (max-width:720px){ .ct-grid-2{ grid-template-columns:1fr; } }

  .ct-field{ margin-bottom:18px; }
  .ct-field label{
    display:block; font-family:var(--font-mono); font-size:12px; letter-spacing:0.06em;
    text-transform:uppercase; color:var(--text-faint); margin-bottom:8px;
  }
  .ct-input-row{ display:flex; gap:8px; }
  .ct-input, select.ct-input{
    width:100%; background:var(--panel-alt); border:1px solid var(--border); color:var(--text);
    font-family:var(--font-mono); font-size:15px; padding:11px 12px; border-radius:7px; outline:none;
    transition:border-color 0.15s ease;
  }
  .ct-input:focus{ border-color:var(--amber); }
  select.ct-input{ cursor:pointer; }

  .ct-note{ font-size:13px; color:var(--text-faint); margin-top:14px; line-height:1.6; }
  .ct-note code{
    background:var(--panel-alt); border:1px solid var(--border); padding:1px 6px; border-radius:4px;
    font-family:var(--font-mono); color:var(--copper); font-size:12.5px;
  }
  .ct-warn{ color:var(--danger); font-size:13.5px; margin-top:10px; display:none; }
  .ct-warn.show{ display:block; }
  .ct-caution{
    display:flex; gap:10px; background:rgba(209,88,74,0.08); border:1px solid rgba(209,88,74,0.3);
    border-radius:8px; padding:12px 14px; margin-bottom:22px; font-size:13.5px; color:var(--text-muted); line-height:1.55;
  }
  .ct-caution b{ color:var(--text); }

  .ct-table{ width:100%; border-collapse:collapse; font-size:13px; margin-top:6px; }
  .ct-table th, .ct-table td{ text-align:left; padding:7px 10px; border-bottom:1px solid var(--border-soft); }
  .ct-table th{ color:var(--text-faint); font-family:var(--font-mono); font-weight:600; text-transform:uppercase; font-size:11px; letter-spacing:0.05em; }
  .ct-table td{ color:var(--text-muted); }
  .ct-table td b{ color:var(--text); font-weight:600; }