body {
  background-color: #030712;
  color: #f9fafb;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.card {
  background: #111827;
  padding: 2.5rem;
  border-radius: 16px;
  border: 1px solid #1f2937;
  text-align: center;
  max-width: 500px;
}

h1 {
  color: #38bdf8;
  font-size: 1.5rem;
  margin: 1rem 0;
}

p {
  color: #9ca3af;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.btn {
  background: #2563eb;
  color: white;
  border: none;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

.msg {
  margin-top: 1rem;
  color: #4ade80;
  font-weight: bold;
}