*{
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}
body{
    background-image: url(../imagenes/bg4.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
}
/* Diseñar lo formularios */
main{
    width: 100%;
    padding: 20px;
    margin: auto;
    margin-top: 100px;
}
.contenedor_todo{
    width: 100%;
    max-width: 800px;
    margin: auto;
    position: relative;
}
/* Caja trasera */
.caja_trasera{
    width: 100%;
    padding: 10px 20px;
    display: flex;
    justify-content: center;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    background-color: #0449dfed;
}
.caja_trasera div{
    margin: 100px 40px;
    color: white;
    transition: all 500ms;
}
.caja_trasera button{
    margin-top: 30px;

}

.caja_trasera div h3{
    font-weight: 400;
    font-size: 26px;
}
.caja_trasera div p{
    font-weight: 300;
    font-size: 16px;
}
.caja_trasera button{
    padding: 10px 40px;
    border: 2px solid #fff;
    font-size: 14px;
    background-color: transparent;
    font-weight: 600;
    cursor: pointer;
    color: white;
    outline: none;
    transition: 300ms;
/* aplicar efecto al boton */
}
.caja_trasera button:hover{
    background: white;
    color: #46A2FD;
}
.contenedor_login_register{
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 380px;
    position: relative;
    top: -185;
    left: 10px;
    transition: left 500ms cubic-bezier(0.175, 0.885, 0.320, 1.275);
}
.contenedor_login_register form{
    width: 100%;
    padding: 80px 20px;
    background: white;
    position: absolute;
    border-radius: 20px;
}
.contenedor_login_register form h2{
    font-size: 30px;
    text-align: center;
    margin-bottom: 20px;
    color: #46A2FD;
}
.contenedor_login_register form input{
    width: 100%;
    margin-top: 20px;
    padding: 10px 5px;
    border: none;
    background: #F2F2F2;
    font-size: 16px;
    outline: none;
}
.contenedor_login_register form button{
    padding: 10px 20px;
    margin-top: 40px;
    border: none;
    font-size: 14px;
    background: #46A2FD;
    font-weight: 600;
    cursor: pointer;
    color: white;
    outline: none;
}
.formulario_login{
    opacity: 1;
    display: block;
}
.formulario_register{
    display: none;
}

.iconowhatsapp{

    position: fixed;
    right: 20px;
    top: 60px;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    cursor: pointer;
    z-index: 1000;
}

.iconowhatsapp{

    position: fixed;
    right: 20px;
    top: 60px;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    cursor: pointer;
    z-index: 1000;
}



@media screen and (max-width:850px){
    main{
        margin-top: 50px;
        .caja_trasera{
            max-width: 350px;
            height: 300px;
            flex-direction: column;
            margin: auto;
        }
        .caja_trasera div{
            margin: 0;
            position: absolute;
        }
        .contenedor_login_register{
            top: -10px;
            left: -5px;
            margin: auto;
        }
        .contenedor_login_register form{
            position: relative;
        }
    }
}