body, html {
  height: 100%;
  margin: 0;
  padding: 0;
  background-image: url('/img/fondo.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.register-card {
  background: rgba(255, 255, 255, 0.92);
  padding: 2.5rem 3rem;
  border-radius: 1rem;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.15);
  width: 500px; /* MÁS ANCHO */
}

.brand-title {
  font-size: 2rem;
  font-weight: bold;
  color: #0d6efd;
}

.icon {
  font-size: 3rem;
  color: #0d6efd;
}

.form-label {
  font-weight: 500;
}