:root { color-scheme: dark; }
body {
  margin: 0;
  background: #000;
  color: #fff;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
}
.wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 24px;
}
.title {
  font-size: 28px;
  letter-spacing: 0.5px;
  text-align: center;
}
.btn {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid #333;
  background: #111;
  color: #fff;
  font-size: 16px;
}
.btn.secondary {
  background: #0b2;
  border-color: #0b2;
  color: #001;
  font-weight: 800;
}
.result {
  max-width: 520px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hidden { display: none; }
.num { font-size: 18px; }
.progress { color: #aaa; }
.secret { margin-top: 6px; font-size: 18px; }
.hint { color:#555; font-size: 12px; margin-top: 6px; }