.main-navigation {
  z-index: 100;
  position: fixed;
  background: black;
  top: 0;
  left: 0;
  bottom: 0;
  -webkit-transition: width 0.7s;
  -moz-transition: width 0.7s;
  -o-transition: width 0.7s;
  transition: width 0.7s;
}
.main-navigation.closed {
  width: 63px;
}
.main-navigation.opened {
  width: 240px;
}
  .main-navigation button {
    color: #eee;
    position: absolute;
    right: 7px;
    top: 0px;
  }
  .main-navigation .main-logo {
    position: absolute;
    background: black;
    background-image: url(/assets/img/menu-logo-full.png);
    background-repeat: no-repeat;
    background-position: center;
    text-indent: -9999px;
    overflow: hidden;
    width: 184px;
    height: 90px;
    top: 50px;
    right: 28px;
    -webkit-transition: opacity 0.2s;
    -moz-transition: opacity 0.2s;
    -o-transition: opacity 0.2s;
    transition: opacity 0.2s;
    opacity: 0;
  }
  .main-navigation.opened .main-logo {
    opacity: 1;
  }
  .main-navigation .round-logo {
    position: absolute;
    z-index: 100;
    background: black;
    background-image: url(/assets/img/menu-logo.png);
    background-repeat: no-repeat;
    background-position: center;
    text-indent: -9999px;
    overflow: hidden;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    top: 40%;
    right: -28px;
    -webkit-transition: all 0.7s;
    -moz-transition: all 0.7s;
    -o-transition: all 0.7s;
    transition: all 0.7s;
  }
  .main-navigation.opened .round-logo {
    opacity: 0;
    right: 800px;
    -moz-transform: rotate(900deg);
    -webkit-transform: rotate(900deg);
    -ms-transform: rotate(900deg);
    transform: rotate(900deg);
  }
  .main-navigation .social-icons {
    position: absolute;
    top: 70%;
    left: 50%;
    width: 20px;
    margin: 0;
    padding: 0;
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    transform: translateX(-50%);
  }
  .main-navigation .social-icons li {
    padding-bottom: 5px;
  }
  .main-navigation .social-icons a {
    position: relative;
    display: block;
    background: #CCC;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    text-align: center;
  }
  .main-navigation .social-icons a:hover {
    background: #f1f1f1;
  }
  .main-navigation .social-icons i {
    margin-top: 5px;
    color: black;
  }

  .main-navigation .main-menu {
    position: absolute;
    top: 180px;
    left: 15px;
    right: 15px;
    text-align: center;
    margin: 0;
    padding: 0;
    opacity: 0;
    overflow: hidden;
  }
    .main-navigation.opened .main-menu {
      -webkit-transition: opacity 2.5s;
      -moz-transition: opacity 2.5s;
      -o-transition: opacity 2.5s;
      transition: opacity 2.5s;
      opacity: 1;
    }
    .main-navigation.closed .main-menu {
      -webkit-transition: opacity 0.2s;
      -moz-transition: opacity 0.2s;
      -o-transition: opacity 0.2s;
      transition: opacity 0.2s;
    }
    .main-navigation .main-menu li {
    }
    .main-navigation .main-menu a {
      color: white;
      text-transform: uppercase;
      text-decoration: none;
      font-family: "proxima-nova-alt-ext-cond";
      font-size: 20px;
      display: block;
      padding: 8px 0;
      border-bottom: #333 1px solid;
      -webkit-transition: all 0.7s;
      -moz-transition: all 0.7s;
      -o-transition: all 0.7s;
      transition: all 0.7s;
      white-space: nowrap;
    }
    .main-navigation .main-menu a:hover {
      color: #00aebc;
    }


/* ====================== lines button ==================================================*/
.buttons-container {
  margin: 100px auto;
  text-align: center;
}

.lines-button {
  padding: 2rem 1rem;
  transition: .3s;
  cursor: pointer;
  user-select: none;
  background: transparent;
  outline: 0;
  border: none;
}
.lines-button.close {
  -webkit-transform: scale3d(0.8, 0.8, 0.8);
  transform: scale3d(0.8, 0.8, 0.8);
}
.lines-button:hover {
  opacity: 1;
}
.lines-button:active {
  transition: 0;
}

.lines {
  display: inline-block;
  width: 3.5em;
  height: 0.47143rem;
  background: white;
  border-radius: 0.18571rem;
  transition: 0.3s;
  position: relative;
}
.lines:before, .lines:after {
  display: inline-block;
  width: 3.5rem;
  height: 0.47143rem;
  background: white;
  border-radius: 0.18571rem;
  transition: 0.3s;
  position: absolute;
  left: 0;
  content: '';
  -webkit-transform-origin: 0.28571rem center;
  transform-origin: 0.28571rem center;
}
.lines:before {
  top: 1rem;
}
.lines:after {
  top: -1rem;
}

.lines-button:hover .lines:before {
  top: 1.14286rem;
}
.lines-button:hover .lines:after {
  top: -1.14286rem;
}

.lines-button.x.close .lines {
  background: transparent;
}
.lines-button.x.close .lines:before, .lines-button.x.close .lines:after {
  -webkit-transform-origin: 50% 50%;
  transform-origin: 50% 50%;
  top: 0;
  width: 4rem;
}
.lines-button.x.close .lines:before {
  -webkit-transform: rotate3d(0, 0, 1, 45deg);
  transform: rotate3d(0, 0, 1, 45deg);
}
.lines-button.x.close .lines:after {
  -webkit-transform: rotate3d(0, 0, 1, -45deg);
  transform: rotate3d(0, 0, 1, -45deg);
}