* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0f172a;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  color: #e2e8f0;
  padding: 24px;
}

.card {
  max-width: 480px;
  width: 100%;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
}

.icon {
  font-size: 48px;
  margin-bottom: 16px;
}

h1 {
  font-size: 22px;
  margin: 0 0 12px;
  color: #f8fafc;
}

p {
  font-size: 15px;
  line-height: 1.6;
  color: #94a3b8;
  margin: 0 0 8px;
}

.code {
  display: inline-block;
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: #64748b;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 6px 12px;
}