.main-header {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 7rem;
  padding: 2rem 6rem;
  z-index: 10;
  -webkit-transition: background-color .3s, -webkit-transform .3s;
  transition: background-color .3s, -webkit-transform .3s;
  -o-transition: background-color .3s, transform .3s;
  transition: background-color .3s, transform .3s;
  transition: background-color .3s, transform .3s, -webkit-transform .3s;
}

.main-header.bg {
  background-color: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid #eee;
}

.main-header.bg.nav-up {
  -webkit-transform: translateY(-90%);
      -ms-transform: translateY(-90%);
          transform: translateY(-90%);
}

.main-header.bg.nav-up:hover {
  -webkit-transform: translateY(0);
      -ms-transform: translateY(0);
          transform: translateY(0);
}

.main-header > a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  color: transparent;
  height: 100%;
}

.header-logo {
  position: absolute;
  left: 0;
  height: 29px;
  width: 177px;
  max-width: none;
  -webkit-transition: opacity .3s;
  -o-transition: opacity .3s;
  transition: opacity .3s;
}

.bg .header-logo-black,
.header-logo-white {
  opacity: 1;
}

.bg .header-logo-white,
.header-logo-black {
  opacity: 0;
}

.mainnav {
  position: absolute;
  top: -100vh;
  left: 0;
  width: 100%;
  height: 100vh;
  opacity: 0;
  -webkit-transform: none;
          -ms-transform: none;
      transform: none;
  -webkit-transition: all .5s ease .15s;
          -o-transition: all .5s ease .15s;
          transition: all .5s ease .15s;
  z-index: 998;
  background: rgba(255,255,255,0.9);
}

.mainnav li {
  margin: 0;
  padding: 0;
}

.mainnav li::before {
  content: none;
}

.mainnav ul li.menu-item a {
  font-size: 2.6rem;
  text-decoration: none;
  color: #5F575B;
}

#burger-box:checked ~ .mainnav {
  opacity: 1;
  -webkit-transform: translateY(100%);
          -ms-transform: translateY(100%);
      transform: translateY(100%);
}

.mainnav ul {
  position: absolute;
  top: 50%;
  width: 100%;
  -webkit-transform: translateY(-50%);
          -ms-transform: translateY(-50%);
      transform: translateY(-50%);
  display: block;
  text-align: center;
  background: none;
}

.mainnav ul li.active a {
  color: rgb(219,120,78);
}

#burger-box {
  display: none;
}

.burger.toggle {
  position: relative;
  background-color: rgba(0, 0, 0, 0);
  display: block;
  float: right;
  width: 2.6rem;
  height: 2.2rem;
  z-index: 1000;
  -webkit-filter: drop-shadow(0px 0px 7px rgba(0,0,0,0.4));
          filter: drop-shadow(0px 0px 7px rgba(0,0,0,0.4));
}

.bg .burger.toggle,
.burger.toggle.black {
  -webkit-filter: none;
          filter: none;
}

.burger label {
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  cursor: pointer;
}

.hamburger {
  display: inline-block;
  position: relative;
  background: #fff;
  width: 2.6rem;
  height: 2px;
  -webkit-transition: background .3s ease;
  -o-transition: background .3s ease;
  transition: background .3s ease;
}

.hamburger:after,.hamburger:before {
  content: "";
  display: inline-block;
  position: absolute;
  background: #fff;
  left: 0;
  width: 2.6rem;
  height: 2px;
  -webkit-transform-origin: 50% 50%;
          -ms-transform-origin: 50% 50%;
      transform-origin: 50% 50%;
  -webkit-transition: top .3s ease .2s,background-color .3s ease,-webkit-transform .3s ease;
  transition: top .3s ease .2s,background-color .3s ease,-webkit-transform .3s ease;
  -o-transition: top .3s ease .2s,transform .3s ease,background-color .3s ease;
  transition: top .3s ease .2s,transform .3s ease,background-color .3s ease;
  transition: top .3s ease .2s,transform .3s ease,background-color .3s ease,-webkit-transform .3s ease
}

.bg .hamburger, .bg .hamburger:before, .bg .hamburger:after,
.black .hamburger, .black .hamburger:before, .black .hamburger:after {
  background: #000;
}

.hamburger:before {
  top: .7rem
}

.hamburger:after {
  top: -.7rem
}

#burger-box:checked ~ .burger.toggle .hamburger {
  background-color: transparent!important;
  -webkit-transition: background .1s ease 0s;
  -o-transition: background .1s ease 0s;
  transition: background .1s ease 0s
}

#burger-box:checked ~ .burger.toggle .hamburger:after,
#burger-box:checked ~ .burger.toggle .hamburger:before {
  top: 0;
  background: #000;
  -webkit-transition: top .3s ease,-webkit-transform .3s ease .2s;
  transition: top .3s ease,-webkit-transform .3s ease .2s;
  -o-transition: top .3s ease,transform .3s ease .2s;
  transition: top .3s ease,transform .3s ease .2s;
  transition: top .3s ease,transform .3s ease .2s,-webkit-transform .3s ease .2s
}

#burger-box:checked ~ .burger.toggle .hamburger:before {
  -webkit-transform: rotate3d(0,0,1,45deg);
          transform: rotate3d(0,0,1,45deg)
}

#burger-box:checked ~ .burger.toggle .hamburger:after {
  -webkit-transform: rotate3d(0,0,1,-45deg);
          transform: rotate3d(0,0,1,-45deg)
}

@media all and (max-width: 767px) {
  .main-header {
    padding: 2rem;
  }
}