:root{--bg:#0b0c10;--card:#11131a;--text:#e8e8ea;--muted:#a9abb3;--btn:#1f6feb;--btn2:#2ea043;--danger:#ff4d4d;}
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(180deg,#0b0c10,#07080c);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif}
a{color:inherit}
.wrap{max-width:980px;margin:0 auto;padding:24px}
.hero{display:flex;gap:18px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.card{background:rgba(17,19,26,.9);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:18px;box-shadow:0 18px 60px rgba(0,0,0,.35)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:var(--btn);color:white;text-decoration:none;font-weight:700;cursor:pointer}
.btn.secondary{background:transparent}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:12px}
.kpi{padding:12px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06)}
.kpi b{display:block;font-size:18px}
.small{color:var(--muted);font-size:13px}
.grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:820px){.grid{grid-template-columns:1fr 1fr}}
.testTop{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.progress{height:10px;background:rgba(255,255,255,.07);border-radius:999px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.progress>div{height:100%;background:linear-gradient(90deg,#1f6feb,#2ea043)}
.qtext{font-weight:800;margin-bottom:10px}
.series{font-size:20px;font-weight:800;letter-spacing:.5px}
.options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media(min-width:720px){.options{grid-template-columns:repeat(3,minmax(0,1fr))}}
.opt{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:10px;cursor:pointer;min-height:88px;display:flex;align-items:center;justify-content:center}
.opt:hover{border-color:rgba(255,255,255,.18)}
.opt.selected{outline:3px solid rgba(31,111,235,.6)}
.opt.correct{outline:3px solid rgba(46,160,67,.75)}
.opt.wrong{outline:3px solid rgba(255,77,77,.75)}
.target svg,.opt svg{max-width:100%;height:auto}
.matrix{display:grid;grid-template-columns:repeat(2,120px);gap:10px;justify-content:flex-start;align-items:center;margin:10px 0 6px}
.matrix .cell{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:6px;display:flex;align-items:center;justify-content:center;height:120px;width:120px}
.matrix .missing{font-size:42px;font-weight:900;color:rgba(255,255,255,.35)}
.footer{margin-top:22px;color:var(--muted);font-size:13px}

.tableWrap{overflow:auto;border-radius:14px;border:1px solid rgba(255,255,255,.06)}
.table{width:100%;border-collapse:collapse;min-width:420px;background:rgba(255,255,255,.02)}
.table th,.table td{padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.06);text-align:left}
.table th{font-size:13px;color:var(--muted);font-weight:800;letter-spacing:.3px}
.table tr:last-child td{border-bottom:none}


/* Overlay (cooldown / errors) */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);display:flex;align-items:center;justify-content:center;padding:18px;z-index:9999}
.overlay.hidden{display:none}
.overlay__card{width:min(640px,100%);background:var(--card);border:1px solid rgba(255,255,255,.12);border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.55);padding:18px}
.overlay__title{font-weight:900;font-size:18px;margin-bottom:8px}
.overlay__body{color:var(--text)}
.overlay__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;margin-top:14px}
.btn.sm{padding:10px 14px;border-radius:12px}
.footer{display:flex;justify-content:center;margin-top:22px}

/* CUBES prompt svg sizing */
.bigsvg svg{max-width:260px;width:260px;height:auto}

/* MOVES frames A/B/C */
.frames{display:flex;gap:14px;flex-wrap:wrap;margin-top:10px}
.frame{flex:0 0 auto}
.frame svg{width:140px;height:140px}

/* Make option SVG tiles scale nicely */
.opt svg{width:100%;height:100%;display:block}


/* Cloud numbers styling (50 numbers task) */
.cloud span{
  display:inline-block;
  padding:5px;
  margin:3px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:8px;
  background:rgba(255,255,255,.06);
}

/* Memory number hidden state */
.memnum.is-hidden{
  color: transparent;
  text-shadow: none;
}