:root{
  --bg:#0d1014;
  --panel:#141920;
  --line:#232b35;
  --text:#e7ecf2;
  --muted:#7d8a9a;
  --known:#93a1b1;
  --user:#4fc3f7;
  --truth:#ffc857;
  --ghost:255,255,255;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font:15px/1.55 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif;
  -webkit-font-smoothing:antialiased;
  display:flex;justify-content:center;
  padding:28px 18px 60px;
}
main{width:100%;max-width:760px}

header{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
h1{font-size:19px;letter-spacing:.14em;text-transform:uppercase;margin:0;font-weight:600}
.sub{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}

.prompt{color:var(--muted);margin:14px 0 4px;font-size:15px}
.prompt strong{color:var(--text);font-weight:600}
.prompt .headline{
  display:block;margin-top:10px;padding:11px 14px;
  background:var(--panel);border-left:3px solid var(--truth);border-radius:0 7px 7px 0;
  color:var(--text);font-size:16px;line-height:1.4;
}
.prompt .seriesTitle{display:block;color:var(--text);font-size:19px;font-weight:600;letter-spacing:-.01em}
.prompt .askLine{display:block;margin-top:9px;color:var(--text);font-size:15px}
.prompt .dateline{display:block;color:var(--muted);font-size:12.5px;margin-top:5px;letter-spacing:.04em}

.chartWrap{position:relative;margin-top:14px}
canvas{
  display:block;width:100%;height:420px;
  touch-action:none;cursor:crosshair;
  border-radius:10px;background:var(--panel);
}
@media (max-width:560px){canvas{height:340px}}

.livePill{
  position:absolute;top:12px;right:12px;
  background:rgba(13,16,20,.82);border:1px solid var(--line);
  border-radius:999px;padding:5px 11px;font-size:12px;color:var(--muted);
  display:flex;align-items:center;gap:7px;pointer-events:none;
  backdrop-filter:blur(6px);
}
.livePill[hidden]{display:none}
.livePill .dot{width:6px;height:6px;border-radius:50%;background:#4ade80;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

.hintbar{margin-top:11px;color:var(--muted);font-size:13.5px;min-height:20px}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.toolbar .btnRow{margin-top:0}
.toolbar .hintbar{flex:1;min-width:200px}
.iconBtn{width:38px;padding:10px 0;text-align:center;font-size:17px;line-height:1}
button:disabled{opacity:.38;cursor:default;filter:none}

.reveal{margin-top:22px;border-top:1px solid var(--line);padding-top:20px}
.scoreRow{display:flex;align-items:center;gap:18px;margin-bottom:16px}
.scoreBig{font-size:46px;font-weight:650;line-height:1;font-variant-numeric:tabular-nums;color:var(--user)}
.outof{font-size:19px;color:var(--muted);font-weight:400;margin-left:3px}
.scoreMeta{font-size:14px}
.muted{color:var(--muted);font-size:13px}
.reveal h2{font-size:21px;margin:0 0 3px}
.reveal p{color:#c3ccd6;margin:13px 0 0;font-size:14.5px;line-height:1.6}

.btnRow{display:flex;gap:10px;margin-top:20px}
button{
  font:inherit;font-size:14px;font-weight:550;padding:10px 18px;border-radius:8px;
  border:1px solid transparent;background:var(--user);color:#06202b;cursor:pointer;
}
button:hover{filter:brightness(1.08)}
.ghostBtn{background:transparent;color:var(--text);border-color:var(--line)}
.ghostBtn:hover{background:var(--panel);filter:none}

footer{margin-top:34px;color:#5c6774;font-size:12px}
footer a{color:var(--muted);margin-left:8px}

/* ---- induction ---------------------------------------------------------- */
.board{margin-top:16px}
.evidence{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.col{background:var(--panel);border-radius:10px;overflow:hidden}
.colHead{font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;
  padding:9px 13px;border-bottom:1px solid var(--line)}
.fitsHead{color:#7fd1a4}
.noHead{color:#e08a8a}
.colBody{padding:10px 13px;min-height:96px;display:flex;flex-direction:column;gap:7px}
.evRow{display:flex;align-items:center;gap:9px}
.evRow.mine .seq{opacity:1}
.evEmpty{color:#3f4854}

.seq{display:inline-flex;gap:4px}
.tok{display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:7px;border:1px solid transparent;
  background:rgba(255,255,255,.035);font-size:15px;line-height:1;cursor:default}
.tokSm{width:23px;height:23px;font-size:12px;border-radius:5px}
.tokSlot{border:1px dashed #2a323d;background:transparent}
.killTag{font-size:11px;color:#7fd1a4;font-variant-numeric:tabular-nums}
.killTag.killNone{color:#5c6774}

.counter{display:flex;align-items:baseline;gap:10px;margin:18px 0 4px}
.counterNum{font-size:34px;font-weight:650;color:var(--user);
  font-variant-numeric:tabular-nums;line-height:1}
.counterTxt{color:var(--muted);font-size:14px}
.delta{margin-left:8px;font-variant-numeric:tabular-nums}
.delta.good{color:#7fd1a4}
.delta.none{color:#8a7350}

.builder{margin-top:14px;background:var(--panel);border-radius:10px;padding:14px}
.seqStrip{display:flex;gap:6px;margin-bottom:12px}
.seqStrip .tok{cursor:pointer}
.palette{display:flex;gap:8px;margin-bottom:12px}
.palBtn{width:46px;height:42px;font-size:19px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);border-radius:8px;cursor:pointer;padding:0}
.palBtn:hover{background:rgba(255,255,255,.1);filter:none}
.builder .btnRow{margin-top:0}

.exam{margin-top:20px}
.exam h2{font-size:20px;margin:0 0 4px}
.examRow{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 14px;background:var(--panel);border-radius:9px;margin-top:9px}
.examBtns{display:flex;gap:8px}
.examChoice{padding:7px 14px;font-size:13.5px}
.examChoice.chosen{background:var(--user);color:#06202b;border-color:var(--user)}