html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.portada {
  background-image: url("../img/fondoepositiva.jpg");
  background-size: contain;
  background-position: center;
  background-repeat: repeat;
  background-color: #141324;
  height: 100vh; 
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
}
.contacto {
  background-color: #111;   
  color: #fff;
  text-align: center;
  padding: 20px;
  font-family: Arial, sans-serif;
  font-size: 1.7em; 
}
.contacto a {
  color: #00c4ff;           /* color de los links */
  text-decoration: none;
}
.contacto a:hover {
  text-decoration: underline;
}
.whatsapp-label {
  color: #25D366;           /* color verde oficial de WhatsApp */
  font-weight: bold;
}