body{
  margin:0;
  padding:0;
  background-color: black;
}
h1,h2,h3,h4,h5{
  font-family: "Google Sans", sans-serif;
  font-optical-sizing: auto;
  font-weight: bold;
  font-style: normal;
  font-variation-settings:
  "GRAD" 0;
}
.alcentro{
  display: flex;
  justify-content: center; /* Centrado horizontal */
  align-items: center;     /* Centrado vertical */
  min-height: 100vh;      /* Altura de toda la pantalla */
}
.color-blanco{
  color: #fff;
}
/************** WHATSAPP ********/
            .btn-whatsapp {
                position: fixed;
                z-index: 100;
                right: 40px;
                bottom: 40px;
            }

            .btn-whatsapp:before, .btn-whatsapp:after {
                content: "";
                position: absolute;
                top: 7px;
                left: 7px;
                width: 45px;
                height: 45px;
                border-radius: 50%;
                background-color: #25D366;
                opacity: 0;
                animation: onda 1.7s infinite;
            }

            .btn-whatsapp img {
                width: 60px;
                position: relative;
                z-index: 2;
            }

            .btn-whatsapp:before {
                animation-delay: 1s;
            }

            .btn-whatsapp:after {
                animation-delay: 1.3s;
            }

            @keyframes onda {
                0% {
                    transform: scale(1);
                }

                15% {
                    opacity: 1;
                }

                100% {
                    opacity: 0;
                    transform: scale(2.5);
                }
            }

            /************** WHATSAPP ********/