* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0f1115;
  color: #f3f5f7;
}
.top {
  text-align: center;
  padding: 36px 16px 18px;
}
.top h1 { margin: 0; font-size: 2rem; }
.top p { margin: 8px 0 0; color: #b8c0cc; }
.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  gap: 16px;
}
.card {
  background: #171a21;
  border: 1px solid #2a3140;
  border-radius: 14px;
  padding: 16px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}
label { display: grid; gap: 6px; font-size: 0.9rem; color: #cfd7e3; }
input, select, button {
  border-radius: 10px;
  border: 1px solid #344055;
  background: #0e1420;
  color: #f3f5f7;
  padding: 10px;
}
button { cursor: pointer; font-weight: 600; }
button:hover { border-color: #5e79b7; }
.actions { display: flex; gap: 10px; margin-top: 12px; }
.ghost { background: transparent; }
.hint, .small { color: #9ba7bb; font-size: 0.9rem; }
.result-head { display: flex; justify-content: space-between; align-items: center; }
.badge {
  padding: 4px 10px;
  border-radius: 999px;
  background: #233145;
  color: #9fd0ff;
  font-size: 0.8rem;
}
ol { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.locked { color: #6f7b90; filter: blur(3px); user-select: none; }
.pay {
  display: inline-block;
  margin: 8px 0;
  background: #1f6feb;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
}
.unlock { display: flex; gap: 8px; margin: 8px 0 12px; }
footer { text-align: center; color: #7f8ca3; padding: 8px 16px 24px; }