:root{
  --bg:#0f172a;--card:#111827;--muted:#94a3b8;--text:#e5e7eb;--accent:#22c55e;--wrong:#ef4444;--border:#1f2937;--chip:#0b1220
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:linear-gradient(180deg,#0b1020,#0e152a 50%,#0b1020);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial}
.container{max-width:980px;margin:0 auto;padding:24px}
.header{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:16px}
.hgroup{display:flex;flex-direction:column;gap:6px}
h1{font-size:28px;margin:0;letter-spacing:.3px}
.sub{color:var(--muted);font-size:14px}
.card{background:rgba(17,24,39,.6);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.02)}
.stack{display:grid;gap:18px}
.controls{display:flex;gap:12px;flex-wrap:wrap}
button{appearance:none;border:1px solid var(--border);background:#0f172a;color:var(--text);padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:600}
button:hover{background:#0c1225}
button.primary{background:#0a1740;border-color:#1f3b8a}
button.primary:hover{background:#0b1b4e}
button.success{background:#072b1a;border-color:#065f46}
button.warn{background:#2d0b0b;border-color:#7f1d1d}
button[disabled]{opacity:.6;cursor:not-allowed}
.row{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:800px){.row{grid-template-columns:1fr 1fr}}
fieldset{border:1px dashed var(--border);border-radius:14px;padding:14px}
legend{padding:0 8px;color:var(--muted);font-size:13px}
.options{display:grid;gap:10px}
label.option{display:flex;align-items:center;gap:10px;background:#0b1220;border:1px solid #0d162b;padding:10px;border-radius:10px;cursor:pointer}
label.option input{accent-color:#60a5fa}
.pill{font-size:12px;color:var(--muted);background:var(--chip);border:1px solid #0d162b;border-radius:999px;padding:6px 10px}
.status{display:flex;gap:10px;align-items:center}
.status .dot{width:10px;height:10px;border-radius:999px}
.status.ok .dot{background:var(--accent)}
.status.bad .dot{background:var(--wrong)}
.reveal{background:#0b1220;border:1px solid #0d162b;border-radius:12px;padding:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.muted{color:var(--muted)}
.score{font-weight:700}
.hide{display:none !important}
.warnText{color:#fca5a5}
input[type=text]{width:100%;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:#0f172a;color:var(--text)}
.kv{display:grid;gap:8px;margin:10px 0}