.page {
  min-height: 100dvh; /* mejor que 100vh en mobile */
  background: #f4f6f8;
  display: grid;
  place-items: center;
  padding: 16px;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(1.2rem, 4vw, 1.6rem);
  text-align: center;
}

.form-card {
  width: 100%;
  max-width: 420px;
  padding: clamp(16px, 4vw, 24px);
  border-radius: 12px;

  display: grid;
  gap: 12px;
}


@media (max-width: 768px) {
  .form-card {
    grid-template-columns: 1fr 1fr;
  }

  button {
    grid-column: span 2;
  }
}