* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, sans-serif;
  background: #f4f6fb;
  color: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
.card h1 { font-size: 22px; margin-bottom: 8px; }
.card p { color: #555; line-height: 1.5; }
button {
  margin-top: 20px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  background: #4361ee;
  color: #fff;
  cursor: pointer;
  width: 100%;
}
button:disabled { opacity: 0.6; cursor: default; }
.status { font-size: 14px; color: #888; margin-top: 16px; }
.reveal { display: none; }
.reveal.show { display: block; }
.bait.hide { display: none; }
.reveal h1 { color: #d90429; }
.tips {
  text-align: left;
  background: #f4f6fb;
  border-radius: 10px;
  padding: 16px;
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.6;
}
.badge {
  display: inline-block;
  background: #ffe5e5;
  color: #d90429;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}