body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f5f7;
  color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.card {
  background: white;
  padding: 32px;
  border-radius: 16px;
  text-align: center;
  max-width: 480px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.logo {
  width: 90px;
  margin-bottom: 16px;
}

h1 {
  margin-bottom: 8px;
  color: #0b51bb;
}

.subtitulo {
  font-weight: bold;
  color: #555;
}

button {
  margin-top: 12px;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  background: #0b51bb;
  color: white;
  cursor: pointer;
}

button:hover {
  background: #083f91;
}

#mensagem {
  margin-top: 20px;
  font-weight: bold;
}