form {
  max-width: 360px;
  margin: 40px auto;  /* centraliza horizontalmente e dá espaço vertical */
  padding: 24px;
  background: #f0f5fb; /* fundo bem clarinho azulado */
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(26, 60, 114, 0.2); /* sombra azul suave */
  font-family: Arial, sans-serif;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #1a3c72; /* azul escuro */
  font-size: 14px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid #4a90e2;
  border-radius: 5px;
  font-size: 14px;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: #104e8b;
  outline: none;
}

button[type="submit"] {
  width: 100%;
  padding: 12px;
  background-color: #1a3c72;
  border: none;
  color: white;
  font-weight: 700;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin-top: 12px;
}

button[type="submit"]:hover {
  background-color: #104e8b; /* azul mais escuro */
}

p {
  text-align: center;
  font-family: Arial, sans-serif;
  font-size: 14px;
  color: #333;
}

p a {
  color: #1a3c72;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

p a:hover {
  color: #104e8b;
  text-decoration: underline;
}