@media (max-width: 600px) {
  .toggler {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
  }
  .hfix{
    display: initial;
    font-size: 1.1rem;
  }
  nav {
    align-items: stretch;
  }

  nav ul {
    display: none;
  }

  .openednav .icon {
    display: none;
  }

  .openednav .toggler span{
    display: none;
  }
  
  .openednav .toggler::after{
    content: "Zavřít menu";
  }

  .openednav {
    display: block ;
  }
  
  .openednav ul {
    flex-direction: column;
    display: flex;
  }
  .flex-row {
    flex-direction: column;
  }
  .flex-row * {
    margin-right: 0rem;
    margin-bottom: 1rem;
  }
  .flex-row:last-child {
    margin-bottom: 0;
  }
  .grid-cards {
    display: block;
  }
  .grid-cards .card {
    margin-bottom: 0.7rem;
  }
  .galerie {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .container {
    width: 750px;
  }
  .grid-cards {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .galerie {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 992px) {
  .container {
    width: 890px;
  }
  .grid-cards {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .galerie {
    grid-template-columns: 1fr 1fr 1fr;
  }
}
@media (min-width: 1200px) {
  .container {
    width: 1100px;
  }
  .grid-cards {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }
}