* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Titillium Web', sans-serif;   
    font-size: 20px;
}

.cabecera {
    background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 25%,
      #35a3a3 60px
    );
    background-color: white;
    position:fixed;
    top:0;
    width:100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 5px 10%;
    box-shadow: 0px 5px 25px 0px rgba(0,0,0,0.75);
    -webkit-box-shadow: 0px 5px 25px 0px rgba(0,0,0,0.75);
    -moz-box-shadow: 0px 5px 25px 0px rgba(0,0,0,0.75); 
}

.cabecera .logo { cursor: pointer; }

.cabecera img {
    height: 60px;
    width: auto;
}

.cabecera .links-navegacion { list-style: none; }

.cabecera .links-navegacion li {
    display: inline-block;
    padding: 0 20px;    
}

.cabecera .links-navegacion li:hover { transform: scale(1.1); }

.cabecera .links-navegacion a {
    font-size: 18px;
    color: black;
    text-decoration: none;    
}

.cabecera .links-navegacion li a:hover { color: #ffffff; }

.cabecera .btn button{
    font-weight: 18px;
    color: #1b3039;
    padding: 9px 25px;
    background: #eceff1;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease 0s;
}

.cabecera .btn button:hover {
    background-color: #e2f1f8;
    color: #35a3a3;
    transform: scale(1.1);
}

#tres-rayas {
    opacity: 0;
    visibility: hidden;
    display: none;
}

.menu-desplegable {
    top: 70px;
    position: fixed;
    background-color: #ffffff;
    text-align: center;
    width: 100%;
    margin-left: auto;
    padding: 10px 30px 0 30px;
    box-shadow: 0px 5px 5px 0px rgba(0,0,0,0.75);
    -webkit-box-shadow: 0px 5px 7px 0px rgba(0,0,0,0.75);
    -moz-box-shadow: 0px 5px 30px 0px rgba(0,0,0,0.75); 
}

.menu-desplegable .links-navegacion-desplegables { list-style: none; }

.menu-desplegable .links-navegacion-desplegables li { padding: 20px; }

.menu-desplegable .links-navegacion-desplegables li:hover {
    background-color: #35a3a3;
    transform: scale(1.1);
}

.menu-desplegable .links-navegacion-desplegables a {
    font-size: 18px;
    color: black;
    text-decoration: none;    
}

.menu-desplegable .links-navegacion-desplegables li a:hover { color: white; }

#tres-rayas { display: none; }

.menu-desplegable .btn-1 button {
    font-weight: 18px;
    color: #1b3039;
    padding: 9px 25px;
    background: #eceff1;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease 0s;
    margin: 20px;
}

.menu-desplegable .btn-1 button:hover {
    background-color: #e2f1f8;
    color: #35a3a3;
    transform: scale(1.1);
}

/* Responsive */
@media screen and (max-width: 1200px) {

    .cabecera {
        background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 30%,
      #35a3a3 60px
    );
    background-color: white;
    }

}

@media screen and (max-width: 913px) {

    .cabecera .links-navegacion, .btn {
        opacity: 0;
        visibility: hidden;
        display: none;
    }

    #tres-rayas {
        opacity: 1;
        visibility: visible;
        display: block;
    }

    i.fa-solid.fa-bars { font-size: 25px; }

    i.fa-solid.fa-bars:hover {
        color: #ffffff;
        transform: scale(1.1);
    }

}

@media screen and (max-width: 800px) {

    .cabecera {
        background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 35%,
      #35a3a3 60px
    );
    background-color: white;
    }

}

@media screen and (max-width: 650px) {

    .cabecera {
        background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 40%,
      #35a3a3 60px
    );
    background-color: white;
    }

}

@media screen and (max-width: 530px) {

    .cabecera {
        background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 45%,
      #35a3a3 60px
    );
    background-color: white;
    }

}

@media screen and (max-width: 430px) {

    .cabecera {
        background: linear-gradient(
      45deg,
      rgba(0, 0, 0, 0) 20px,
      rgba(0, 0, 0, 0) 50%,
      #35a3a3 60px
    );
    background-color: white;
    }
    
}