:root{
  --bg:#0b0f14; --panel:#0f1620; --accent:#73ffd5; --accent-dim:#3dd0ad;
  --text:#eaf2ff; --muted:#8ea4bf; --bad:#ff6b6b; --good:#8cff9b;
}
body.aurora-e1{
  color:var(--text); background:radial-gradient(1200px 800px at 80% -10%, #132031 0%, var(--bg) 60%);
}
.aurora-card{
  width:100%; max-width:720px; margin:4rem auto; padding:28px 24px;
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));
  border:1px solid rgba(255,255,255,.08); border-radius:16px; backdrop-filter: blur(6px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.aurora-sub{color:var(--muted); margin-bottom:18px}
.aurora-divider{height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent); margin:18px 0}
.aurora-section{margin:18px 0}
.aurora-countdown{display:flex; gap:12px; flex-wrap:wrap; align-items:center; font-variant-numeric:tabular-nums}
.aurora-tile{background:var(--panel); border:1px solid rgba(255,255,255,.09); border-radius:12px; padding:14px 16px; min-width:90px; text-align:center}
.aurora-num{font-size:2rem; font-weight:700; letter-spacing:1px}
.aurora-lbl{font-size:.8rem; color:var(--muted); text-transform:uppercase; letter-spacing:.12em}
.aurora-prompt{background:rgba(115,255,213,.08); border-left:3px solid var(--accent); padding:14px 16px; border-radius:8px}
.aurora-riddle{margin:10px 0 0; color:var(--muted)}
.aurora-form{display:flex; gap:10px; margin-top:12px; flex-wrap:wrap}
.aurora-input{flex:1 1 260px; padding:12px 14px; border-radius:10px; border:1px solid rgba(255,255,255,.12); background:#0c121a; color:var(--text)}
.aurora-input::placeholder{color:#70839e}
.aurora-btn{padding:12px 16px; border-radius:10px; border:1px solid rgba(115,255,213,.35); color:#05251e;
  background:linear-gradient(180deg,var(--accent),var(--accent-dim)); cursor:pointer; font-weight:700}
.aurora-msg{margin-top:10px; font-weight:600}
.aurora-msg.bad{color:var(--bad)} .aurora-msg.good{color:var(--good)}
.aurora-success{display:none; margin-top:14px; padding:14px 16px; border-radius:10px; border:1px solid rgba(140,255,155,.35);
  background:rgba(140,255,155,.08)}
.aurora-footer{margin-top:12px; color:var(--muted); font-size:.9rem}
.aurora-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}