flox/client/resources/sass/components/_header.scss

.header-wrap {
  position: fixed;
  z-index: 200;
  width: 100%;

  .subpage-open & {
    position: absolute;
  }
}

header {
  background: $main2;
  background: $gradient;
  width: 100%;
  padding: 25px 0;
  position: relative;
  z-index: 20;
  opacity: 0;

  .active & {
    transition: opacity .7s ease .1s, padding-top .2s ease 0s, padding-bottom .2s ease 0s;
    opacity: 1;
  }
  
  .sticky & {
    padding: 10px 0;
    opacity: .97;
  }

  .subpage-open & {
    background: none;
    padding: 25px 0;
  }
  
  .mobile-open & {
    background: $gradient;
  }

  .open-modal & {
    padding-right: 17px;
  }
}

.logo {
  float: left;
  opacity: .9;
  cursor: pointer;
  user-select: none;
  
  img {
    @include transition(width, height);

    .sticky & {
      //width: 90px;
      //height: auto;
    }
  }

  @include media(5) {
    //width: 80px;
    //height: auto;
    //margin: 7px 0 0 0;

    img {
      //width: 100%;
      //height: auto;
    }
  }
}

.site-nav,
.site-nav-second {
  float: left;
  margin: 7px 0 0 40px;
  list-style: none;
  padding: 0;
  opacity: .9;

  @include media(3) {
    clear: left;
    float: left;
    margin: 20px 0 0 0;
  }
  
  @include media(5) {
    display: none;
    margin: 0;
    width: 100%;
    
    .mobile-open & {
      display: block;
    }
  }

  li {
    float: left;
    margin: 0 20px 0 0;

    &:last-child {
      margin: 0;
    }
    
    @include media(5) {
      width: 33%;
      margin: 0;
    }
    
    @include media(6) {
      width: 100%;
    }
  }

  a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
    float: left;
    border-bottom: 2px solid transparent;

    &.router-link-active {
      border-bottom: 2px solid #fff;
    }

    &:active {
      opacity: .6;
    }

    @include media(3) {
      font-size: 14px;
    }
    
    @include media(5) {
      padding: 8px 0;
    }
  }
}

.site-nav-first {
  @include media(5) {
    margin: 15px 0 0 0;
  }
}

.site-nav-second {
  float: right;
  margin: 7px 0 0 0;

  @include media(3) {
    clear: none;
    float: left;
    margin: 20px 0 0 15px;
  }
  
  @include media(5) {
    margin: 0;
  }
}

.icon-hamburger {
  background: url(../../../public/assets/img/hamburger.png);
  width: 31px;
  height: 23px;
  float: right;
  display: none;
  margin: 6px 0 0 0;
  cursor: pointer;
  
  &:active {
    opacity: .6;
  }
  
  @include media(5) {
    display: block;
  }
}