*{box-sizing:border-box}
:root{
  --bg:#0e1015;
  --card:#171a22;
  --text:#f4f5f7;
  --muted:#a9afbc;
  --line:#2a2f3a;
  --soft:#202530;
  --accent:#f0f1f3;
}
html,body{
  margin:0;
  min-height:100%;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
body{min-height:100vh}
.wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.card{
  width:min(720px,100%);
  background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.01)),var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  padding:28px;
  box-shadow:0 30px 80px rgba(0,0,0,.28);
  overflow:hidden;
}
.eyebrow{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
h1{font-size:clamp(28px,6vw,48px);line-height:1.02;margin:0 0 22px;font-weight:750;letter-spacing:-.03em}
.text{font-size:17px;line-height:1.65;color:#e8eaf0}
.text p{margin:0 0 16px}
.highlight{padding:16px 18px;border-left:3px solid var(--accent);background:var(--soft);border-radius:12px}
.question-block{margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.question{font-size:23px;font-weight:750;line-height:1.3}
.hint{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.55}
.footer{margin-top:20px;color:var(--muted);font-size:13px}

.reveal{
  opacity:0;
  transform:translateY(14px);
  filter:blur(3px);
  transition:opacity .8s ease, transform .8s ease, filter .8s ease;
}
.reveal.visible{
  opacity:1;
  transform:translateY(0);
  filter:blur(0);
}

@media(max-width:560px){
  .wrap{padding:14px}
  .card{padding:22px 18px;border-radius:20px}
}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;filter:none;transition:none}
}