.nav {
  border-bottom: 1px solid #2a324b;
  background-color: #003966;
  padding: 20px;
}

.nav_checkbox {
  display: none;
}

@media screen and (min-width: 815px){
  .nav_toggle,
  .nav_toggle .close {
    display: none;
  }

  .nav {
    padding: 10px;
  }

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

  .nav_menu li {
    list-style: none;
    line-height: 70px;
  }

  .nav_menu li a {
    color: #ffffff;
    font-size: 22px;
    font-weight: 500;
    padding: 9px 7px;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-left: 20px;
    margin-right: 20px;
  }

  .nav_menu li a:hover {
    background: #47a329;
  }
}

@media screen and (max-width: 815px){

  .nav_toggle {
    position: absolute;
    cursor: pointer;
    margin: 0 1rem;
    right: 0;
  }
  
  .nav_toggle .menu {
    fill: #fff;
  }
  
  .nav_toggle .close {
    display: none;
  }
  
  .nav_toggle .close,
  .nav_toggle .menu {
    width: 5rem;
    height: 1rem;
    margin-top: 0.5rem;
  }
  
  .nav_menu {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    margin: 1rem;
  }
  
  .nav_menu li {
    list-style-type: none;
    display: none;
  }
  
  .nav_menu li a {
    text-decoration: none;
    color: #fff;
    font-size: 18px;
  }
  
  .nav_menu li:first-child {
    margin-right: auto;
    display: block;
  }
  
  #nav_checkbox:checked ~ ul.nav_menu li {
    display: block;
  }
  
  #nav_checkbox:checked ~ label.nav_toggle .close {
    display: block;
  }
  
  #nav_checkbox:checked ~ label.nav_toggle .menu {
    display: none;
  }
  
}