.topheader {
box-shadow: 0 4px 5px var(--navbar-shallow-color);
position: fixed;
background-color: var(--theme-color);
left: 0;
top: 0;
width: 100%;
z-index: 100; /*imagen logo sube por detras del header*//
}
.topnav {
  display: flex;
  justify-content: space-between;
  padding: 10px;
  max-width: 980px;
  margin: 0 auto;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  font-size: 18px;
  font-weight: 500;
  color: var(--primary-color);

}

.logo image {
border-radius: 50%;

}
/* Menu */
.menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  }
  .menu li {
    padding: 0 15px;
  }
  .menu a {
    color: var(--text-color);
    font-size: 18px;
    font-weight: 500;
    line-height: 50px;
    text-transform: uppercase;
    position: relative;
  }
  /*color sobre letras*/
  .menu a::after{
    content: "";
  background-color: var(--secundary-color) ;
  position: absolute;
  left: 0;
  top: calc(100% + 4px);
  width: 100%; /*ancho*/
  height: 4px; /*alto*/
  opacity: 0; /*no se ve*/

  transition: opacity 0.3s;  /*aparece*/
}

  .menu a.selected::after, /*se ve*/
  .menu a:hover::after {
    opacity: 0.8;  
  }

  .menu a:hover {
    color: var(--primary-color)
  }


  .open-menu,
  .close-menu {
    display: none;
  }

  .logotype {
    display: flex;
    justify-content: center;
  }


  @media (max-width: 950px) {
   /* Menu */
.menu {
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  align-items: center;
  background-color: var(--menu-mobile-background-color);
  height: 100%;
  overflow-y: auto;

  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;

   }
  .menu li {
    padding: 0;
  }
  .menu a {
    color: var(--text-color-inverse);
        line-height: 70px;
        font: size 25px;;

  }
  .open-menu,
  .close-menu {
    display: block;
    border: none;
    background: none;
    cursor: pointer;
  }

  .close-menu {
    align-self: flex-end;
    padding: 20px 15px ;
  }

  .menu_opened {
    opacity: 1;
    pointer-events: all;
  }

    .open-menu:focus:not(:focus-visible),
    .close-menu:focus:not(:focus-visible){
    outline: none;
  }
  .menu a::after{
    content: "";
  }
  
  .menu a:hover,
  .menu a.selected {
    color: var(--secundary-color)
  }
  }