navigation.css

/*************************/
/******** Layout *********/
/*************************/
.navigation {
  display: flex;
  align-items: center;
}

/*************************/
/***** Hamburger icon ****/
/*************************/
.icon {
  width: 60px;
  height: 20px;
  position: relative;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .5s ease-in-out;
  -moz-transition: .5s ease-in-out;
  -o-transition: .5s ease-in-out;
  transition: .5s ease-in-out;
  z-index: 3;
  cursor: pointer;
}

.icon .line {
  position: absolute;
  background: #FFD97B;
  display: block;
  border-top-left-radius: 2.5px;
  border-bottom-left-radius: 2.5px;
  border-top-right-radius: 2.5px;
  border-bottom-right-radius: 2.5px;
  height: 5px;
  width: 100%;
  opacity: 1;
  left: 0;
  -webkit-transform: rotate(0deg);
  -moz-transform: rotate(0deg);
  -o-transform: rotate(0deg);
  transform: rotate(0deg);
  -webkit-transition: .25s ease-in-out;
  -moz-transition: .25s ease-in-out;
  -o-transition: .25s ease-in-out;
  transition: .25s ease-in-out;
}

.icon.open .line {
  background: black;
}

.icon .line:nth-child(1) {
  top: 0px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}

.icon .line:nth-child(2) {
  top: 15px;
  -webkit-transform-origin: left center;
  -moz-transform-origin: left center;
  -o-transform-origin: left center;
  transform-origin: left center;
}

.icon.open .line:nth-child(1) {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  top: -13px;
  left: 10px;
}

.icon.open .line:nth-child(2) {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
  top: 28px;
  left: 10px;
}

.close-text {
  display: none;
}

.close-text.show {
  display: block;
  z-index: 3;
  margin-right: 20px;
  font-size: 30px;
}

@media (max-width: 600px) {
  .icon {
    width: 45px;
    height: 17px;
  }

  .icon .line {
    height: 4px;
  }

  .icon .line:nth-child(2) {
    top: 13px;
  }

  .icon.open .line:nth-child(1) {
    top: -8px;
    left: 8px;
  }

  .icon.open .line:nth-child(2) {
    top: 24px;
    left: 8px;
  }

  .close-text.show {
    font-size: 25px;
  }
}

/*************************/
/****** Menu overlay *****/
/*************************/
.links {
  display: none;
  height: 100vh;
  width: 100vw;
  background-color: #F2ECE7;
  padding: 100px 0px;
  z-index: 2;
}

.links.show {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  overflow-x: hidden;
}

.links-grid-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
}

.links-grid {
  height: 305px;
  display: grid;
  grid-template-columns: 500px 500px;
  grid-gap: 5px;
}

.links a,
.links a:active,
.links a:hover,
.links a:focus,
.links a:visited {
  height: 150px;
  font-family: 'Roboto', 'Helvetica';
  font-weight: 300;
  font-size: 30px;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 40px;
  overflow: hidden;
}

.link-blue {
  background-color: #618AFF;
}

.link-blue img {
  width: auto;
  height: 150px;
  margin-top: -18px;
  margin-right: 4px;
}

.link-grey {
  background-color: #5A6175;
}

.link-grey img {
  width: auto;
  height: 100px;
  margin-top: -60px;
  margin-right: 4px;
  -moz-transform: scaleX(-1);
  -o-transform: scaleX(-1);
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
  filter: FlipH;
  -ms-filter: "FlipH";
}

.links-grid a.link-yellow {
  background-color: #FFD368;
  color: black;
}

.link-yellow img {
  width: auto;
  height: 120px;
  margin-top: -40px;
  margin-right: 4px;
}

.link-pink {
  background-color: #FF3B5C;
}

.link-pink img {
  width: auto;
  height: 130px;
  margin-top: -20px;
  margin-right: 4px;
}

@media (max-width: 1000px) {
  .links-grid {
    height: 205px;
    grid-template-columns: 300px 300px;
  }

  .links a,
  .links a:active,
  .links a:hover,
  .links a:focus,
  .links a:visited {
    height: 100px;
    font-size: 25px;
    padding-left: 40px;
  }

  .link-blue img {
    height: 100px;
  }

  .link-grey img {
    height: 70px;
  }

  .link-yellow img {
    height: 80px;
  }

  .link-pink img {
    height: 80px;
  }
}

@media (max-width: 600px) {
  .links {
    padding-top: 70px;
  }

  .links-grid {
    height: 420px;
    grid-template-columns: 100%;
    width: 100%;
  }

  .links a,
  .links a:active,
  .links a:hover,
  .links a:focus,
  .links a:visited {
    width: 100%;
  }

  .link-blue img {
    margin-top: -18px;
  }

  .link-grey img {
    margin-top: -60px;
  }

  .link-yellow img {
    margin-top: -40px;
  }

  .link-pink img {
    margin-top: -20px;
  }
}