:root{
    --ink:#e8ecf3;
    --ink-dim:#8892a6;
    --ink-mute:#5a6377;
    --bg-0:#0b0d12;
    --bg-1:#12151d;
    --bg-2:#1a1e28;
    --bg-3:#232836;
    --line:#2a3040;
    --accent:#7aa2ff;
    --good:#4ade80;
    --warn:#fbbf24;
    --bad:#f87171;
    --r:14px;
    --r-sm:10px;
    --shadow:0 20px 60px -20px rgba(0,0,0,.6),0 8px 24px -12px rgba(0,0,0,.5);
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *{box-sizing:border-box}
  html,body{margin:0;height:100%;background:radial-gradient(1200px 800px at 70% -10%,#1b2030 0%,var(--bg-0) 55%);color:var(--ink);font:14px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;-webkit-font-smoothing:antialiased}
  header{padding:22px 28px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}
  header h1{margin:0;font-size:15px;font-weight:600;letter-spacing:.02em}
  header .sub{color:var(--ink-dim);font-size:12.5px;letter-spacing:.01em}
  header .brand{width:22px;height:22px;border-radius:6px;background:conic-gradient(from 0deg,#ff5566,#ffb020,#20d97a,#20b4ff,#8a5cff,#ff5566);box-shadow:inset 0 0 0 1px rgba(255,255,255,.15),0 0 20px rgba(122,162,255,.25)}
  main{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:24px;padding:24px 28px;min-height:calc(100% - 66px)}
  @media (max-width:960px){main{grid-template-columns:1fr}}

  /* ---------- Wheel ---------- */
  .stage{position:relative;background:linear-gradient(180deg,var(--bg-1),var(--bg-0));border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:14px;min-height:640px;box-shadow:var(--shadow)}
  .stage-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
  .stage-head h2{margin:0;font-size:13px;font-weight:600;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.12em}
  .picker-hint{font-size:12px;color:var(--ink-dim);display:flex;align-items:center;gap:8px}
  .picker-hint .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 1.6s var(--ease) infinite}
  @keyframes pulse{50%{opacity:.35}}
  .wheel-wrap{flex:1;display:grid;place-items:center;position:relative}
  svg#wheel{width:min(100%,560px);height:auto;overflow:visible;filter:drop-shadow(0 30px 60px rgba(0,0,0,.5))}
  svg#wheel .wedge{cursor:pointer;transition:transform .35s var(--ease),opacity .25s var(--ease),filter .25s var(--ease);transform-origin:center;transform-box:fill-box}
  svg#wheel .wedge:hover{transform:scale(1.04)}
  svg#wheel .wedge.dim{opacity:.12;pointer-events:none;filter:saturate(.4)}
  svg#wheel .wedge.selected{stroke:#fff;stroke-width:2.5;filter:drop-shadow(0 0 8px rgba(255,255,255,.5))}
  svg#wheel .ring-label{fill:var(--ink-mute);font-size:9px;font-weight:600;letter-spacing:.1em;text-anchor:middle;pointer-events:none;text-transform:uppercase}
  svg#wheel .hub{fill:var(--bg-2);stroke:var(--line);stroke-width:1}
  svg#wheel .hub-text{fill:var(--ink-dim);font-size:10px;text-anchor:middle;font-weight:600;letter-spacing:.15em;text-transform:uppercase}
  .neutrals{display:flex;gap:6px;padding-top:6px;justify-content:center;flex-wrap:wrap}
  .neutrals .n{width:34px;height:34px;border-radius:8px;cursor:pointer;border:1px solid rgba(255,255,255,.06);transition:transform .2s var(--ease),box-shadow .2s var(--ease),opacity .2s var(--ease)}
  .neutrals .n:hover{transform:translateY(-2px);box-shadow:0 6px 14px rgba(0,0,0,.4)}
  .neutrals .n.dim{opacity:.15;pointer-events:none}
  .neutrals .n.selected{outline:2px solid #fff;outline-offset:2px}

  /* ---------- Panel ---------- */
  .panel{display:flex;flex-direction:column;gap:16px;min-width:0}
  .card{background:linear-gradient(180deg,var(--bg-1),var(--bg-2));border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
  .card h3{margin:0 0 12px;font-size:11px;font-weight:600;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.14em}

  .mode{display:flex;background:var(--bg-0);border:1px solid var(--line);border-radius:var(--r-sm);padding:3px;position:relative}
  .mode button{flex:1;background:none;border:0;color:var(--ink-dim);padding:9px 12px;border-radius:8px;font:inherit;font-weight:600;font-size:12px;cursor:pointer;letter-spacing:.04em;transition:color .25s var(--ease);position:relative;z-index:1}
  .mode button.on{color:#0b0d12}
  .mode .slider{position:absolute;top:3px;bottom:3px;left:3px;width:calc(50% - 3px);background:linear-gradient(180deg,#e8ecf3,#c7cfe0);border-radius:8px;transition:transform .4s var(--ease);z-index:0;box-shadow:0 4px 12px rgba(0,0,0,.4)}
  .mode.night .slider{transform:translateX(100%)}

  .roles{display:flex;flex-direction:column;gap:6px}
  .role{display:grid;grid-template-columns:20px 1fr auto;align-items:center;gap:12px;padding:10px 12px;background:var(--bg-0);border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;transition:border-color .2s var(--ease),background .2s var(--ease);text-align:left}
  .role:hover{border-color:#3a4358;background:#161b26}
  .role.active{border-color:var(--accent);box-shadow:0 0 0 3px rgba(122,162,255,.15),inset 0 0 20px rgba(122,162,255,.06)}
  .role .chip{width:20px;height:20px;border-radius:6px;background:var(--bg-3);border:1px solid rgba(255,255,255,.08);transition:background .3s var(--ease)}
  .role .meta{display:flex;flex-direction:column;gap:1px;min-width:0}
  .role .name{font-weight:600;font-size:12.5px}
  .role .desc{color:var(--ink-mute);font-size:11px}
  .role .val{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--ink-dim);letter-spacing:.02em}
  .role.empty .val{color:var(--ink-mute);opacity:.6}

  .preview{border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);transition:background .4s var(--ease),color .4s var(--ease)}
  .preview .pv-inner{padding:18px;transition:all .4s var(--ease)}
  .preview .pv-card{padding:14px;border-radius:10px;margin-top:12px;transition:all .4s var(--ease)}
  .preview h4{margin:0 0 6px;font-size:15px;font-weight:700;letter-spacing:-.01em}
  .preview p{margin:0 0 10px;font-size:12.5px;line-height:1.55}
  .preview .btn{display:inline-block;padding:8px 14px;border-radius:8px;font-size:12px;font-weight:600;text-decoration:none;transition:all .3s var(--ease)}
  .preview .muted{font-size:11px;letter-spacing:.02em}
  .preview .link{text-decoration:underline;text-underline-offset:2px;font-weight:600}

  .actions{display:flex;gap:8px}
  .btn-primary,.btn-ghost{flex:1;padding:11px 14px;border-radius:var(--r-sm);border:1px solid transparent;font:inherit;font-weight:600;font-size:12.5px;cursor:pointer;letter-spacing:.02em;transition:transform .15s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
  .btn-primary{background:linear-gradient(180deg,#e8ecf3,#c7cfe0);color:#0b0d12}
  .btn-primary:hover{transform:translateY(-1px)}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-dim)}
  .btn-ghost:hover{border-color:#3a4358;color:var(--ink)}

  .contrast-legend{display:flex;flex-direction:column;gap:6px;font-size:11.5px;color:var(--ink-dim)}
  .contrast-legend .row{display:flex;justify-content:space-between;align-items:center}
  .contrast-legend .row b{color:var(--ink);font-weight:600}
  .contrast-legend .badge{font-family:ui-monospace,monospace;padding:2px 7px;border-radius:5px;font-size:10.5px;font-weight:600;letter-spacing:.02em}
  .badge.ok{background:rgba(74,222,128,.12);color:var(--good)}
  .badge.warn{background:rgba(251,191,36,.12);color:var(--warn)}
  .badge.no{background:rgba(248,113,113,.12);color:var(--bad)}

  dialog{border:1px solid var(--line);border-radius:var(--r);background:var(--bg-1);color:var(--ink);padding:0;max-width:640px;width:calc(100% - 40px);box-shadow:var(--shadow)}
  dialog::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(4px)}
  dialog .dlg-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
  dialog .dlg-head h3{margin:0;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim)}
  dialog textarea{width:100%;height:340px;background:var(--bg-0);color:var(--ink);border:0;padding:18px 20px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;line-height:1.6;resize:vertical;outline:none}
  dialog .dlg-foot{padding:12px 20px;display:flex;gap:8px;justify-content:flex-end;border-top:1px solid var(--line)}
  .close-x{background:none;border:0;color:var(--ink-dim);cursor:pointer;font-size:20px;line-height:1;padding:4px 8px;border-radius:6px}
  .close-x:hover{background:var(--bg-3);color:var(--ink)}

/* externalised inline-style utilities — CSP style-src 'self' */
.u-neutrals-label{font-size:11px;color:var(--ink-mute);text-transform:uppercase;letter-spacing:.12em;margin-bottom:8px;text-align:center}
.u-row-between{display:flex;justify-content:space-between;align-items:center;gap:10px}
.u-strong13{font-weight:600;font-size:13px}
.u-mt12-fs12{margin-top:12px;font-size:12px}