* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0;
  background: #0f172a;
  color: #f1f5f9;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}
.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 18px 80px;
}
h1 {
  font-size: 22px;
  font-weight: 800;
  margin: 8px 0 4px;
}
.lede {
  color: #94a3b8;
  font-size: 15px;
  margin-bottom: 20px;
}
.card {
  display: block;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 12px;
  text-decoration: none;
  color: #f1f5f9;
}
.card .title {
  font-weight: 700;
  font-size: 16px;
}
.card .sub {
  color: #94a3b8;
  font-size: 13.5px;
  margin-top: 4px;
}
.step {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 14px;
}
.step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: #2563eb;
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 800;
  margin-right: 8px;
}
kbd {
  background: #334155;
  border: 1px solid #475569;
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 8px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 700;
  color: #e2e8f0;
}
.back {
  display: inline-block;
  margin-top: 18px;
  color: #60a5fa;
  text-decoration: none;
  font-size: 14px;
}
.help-banner {
  margin-top: 28px;
  background: #1e2a4a;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 13.5px;
  color: #cbd5e1;
  text-align: center;
}
.help-banner a {
  color: #60a5fa;
  text-decoration: none;
  font-weight: 700;
}