header {
  width: 100%;
  display: inline-flex;
  position: fixed;
  justify-content: space-between;
  /*-webkit-box-shadow: 0 1px 5px rgba(0, 0, 0, 0.25);
  -moz-box-shadow: 0 1px 5px rgba(0, 0, 0, 0.25);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.25);*/
  transition: all 0.2s ease-in-out;
  z-index: 10000;
  top: 0rem;
  height: 5rem;
}

nav {
  margin-right: 1.5rem;
}

.acti {
  background-color: rgb(46, 46, 46);
}

.headerimg {
  max-width: 170px;
  max-height: 200px;
  margin-left: 4em;
  margin-top: 1rem;
}

header > img {
  height: 3rem;
}

header nav {
  margin-top: 2rem;
}

nav a {
  margin-right: 2rem;
  text-transform: uppercase;
  color: var(--white);
  font-size: 1.3rem;
  line-height: 1.3rem;
  letter-spacing: 0.03em;
  text-decoration: none;
}

nav a:hover {
  /*text-decoration: underline;*/
  transition: 0.4s;
  color: var(--green);
  cursor: pointer;
}

nav a:last-child {
  margin-right: 0rem;
  padding: 0.5rem 1rem;
  border: 0.2rem solid var(--green);
  border-radius: 1rem;
  background-color: transparent;
  color: var(--green);
  transition: 0.2s ease-in-out;
}

nav a:last-child:hover {
  background-color: var(--white);
  transition: 0.3s ease-in-out;
  color: var(--black);
  text-decoration: none;
}

@media screen and (max-width: 1000px) {
  .headerimg {
    max-width: 170px;
    margin-top: 1.5rem;
    margin-left: 2rem;
  }

  header > img {
    height: 2rem;
  }

  nav {
    display: none;
  }

  .menu-toggle {
    width: 2rem;
    height: 2rem;
    position: absolute;
    top: 1.5rem;
    right: 3rem;
    cursor: pointer;
  }

  .menu-toggle.on .one {
    background-color: var(--white);
    -moz-transform: rotate(45deg) translate(7px, 7px);
    -ms-transform: rotate(45deg) translate(7px, 7px);
    -webkit-transform: rotate(45deg) translate(7px, 7px);
    transform: rotate(45deg) translate(7px, 7px);
  }

  .menu-toggle.on .two {
    opacity: 0;
  }

  .menu-toggle.on .three {
    background-color: var(--white);
    -moz-transform: rotate(-45deg) translate(8px, -10px);
    -ms-transform: rotate(-45deg) translate(8px, -10px);
    -webkit-transform: rotate(-45deg) translate(8px, -10px);
    transform: rotate(-45deg) translate(8px, -10px);
  }

  .one,
  .two,
  .three {
    width: 100%;
    height: 5px;
    background-color: var(--greendois);
    margin: 6px auto;
    border-radius: 2rem;
    backface-visibility: hidden;
    -moz-transition-duration: 0.3s;
    -o-transition-duration: 0.3s;
    -webkit-transition-duration: 0.3s;
    transition-duration: 0.3s;
  }

  header ul {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    list-style: none;
    padding: 0rem;
  }

  header ul.hidden {
    display: none;
  }

  header ul a {
    display: block;
    padding: 1rem 0rem;
    color: var(--white-color);
    font-size: 2rem;
    text-decoration: none;
    -moz-transition-duration: 0.5s;
    -o-transition-duration: 0.5s;
    -webkit-transition-duration: 0.5s;
    transition-duration: 0.5s;
  }

  .menu-section.on {
    z-index: 10;
    width: 100%;
    height: 100%;
    font-weight: 800;
    display: block;
    background-color: var(--green);
    position: fixed;
    left: 0;
    top: 0;
  }
}

@media screen and (min-width: 1000px) {
  header ul,
  .menu-section {
    display: none;
  }
}