nimbus-site/themes/navy/source/scss/header.scss

.header {
	position: absolute;
	display: flex;
	justify-content: space-between;
	width: 1200px;
	height: 56px;
	left: 50%;
	top: 0;
	margin: 24px 0 0 -600px;
}

html {
	scroll-behavior:smooth
}

.header-left {
	display: flex;
	align-items: center;
}

.header-logos {
	display: flex;
	list-style: none;
}

.header-right {
	display: flex;
	align-items: center;
}

.logo {
	display: block;
	width: 146px;
	height: 56px;
	background-image: url(../img/Nimbus_logo_white.png);
	background-size: 146px;
	background-position: center;
	background-repeat: no-repeat;
}

.mobile-nav-wrap {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	overflow: auto;
	box-sizing: border-box;
	z-index: 400;

	visibility: hidden;
	pointer-events: none;
}


.header-icon {
  display: inline-block;
  width: 45px;
  height: 45px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin: 0 25px 0 0;
  background-repeat: no-repeat;
  background-position: center;
}

.header-link--gh .header-icon {
  background-image: url(../img/icon_gh.svg);
  background-size: 80%;
}

.header-link--tw .header-icon {
  background-image: url(../img/icon_tw.svg);
  background-size: 80%;
}

.header-link--gt .header-icon {
  background-image: url(../img/icon-gitter.svg);
}

.header-link--st .header-icon {
  background-image: url(../img/footer-logo.svg);
}

.mobile-nav-wrap.mobile-nav--shown {
  visibility: visible;
  pointer-events: all;
}

.mobile-nav-inner {
	position: absolute;
	width: 100%;
	left: 0;
	top: 0;
	background-color: $colorWhite;
	box-shadow: 0px 2px 4px rgba(43, 59, 71, 0.124066);
	z-index: 600;

	opacity: 0;
	transform: translate3d(0, -25px ,0) scaleY(.94);
	visibility: hidden;
	transition: visibility .5s linear 0s, opacity .1s linear, transform .4s cubic-bezier(0.175, 0.885, 0.135, 1.425);
}

.mobile-nav--shown .mobile-nav-inner  {
	visibility: visible;
	opacity: 1;
	transform: translate3d(0, -5px ,0) scaleY(1);
}

.mobile-nav-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(120, 135, 148, .25);
	z-index: 500;

	opacity: 0;
	transition-delay: .2s;
	transform: translate3d(0, 0 ,0) scale(1);
	visibility: hidden;
	transition: visibility .5s linear 0s, opacity .4s ease;
}

.mobile-nav--shown .mobile-nav-overlay {
	transition-delay: 0s;
	visibility: visible;
	opacity: 1;
	transform: translate3d(0, 0 ,0) scale(1);
}

.mobile-nav-wrap .logo {
	margin: 24px;
}

.mobile-nav-wrap .icon-close {
	position: absolute;
	right: 24px;
	top: 40px;
	width: 16px;
	height: 16px;
	background-image: url(../img/icon-close.svg);
	background-size: 16px;
}

.mobile-nav {
	padding: 0 24px 16px 24px;
}

.mobile-nav li a,
.mobile-nav li span {
	color: $colorBlack;
	display: block;
	padding: 16px 0;
}

.mobile-sub-nav li a {
	color: $colorGray;
	padding-left: 32px;
}


.mobile-nav-footer {
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 24px 0;
	margin: 0 24px;
	border-top: 1px solid rgba(232, 235, 236, 1)
}

.mobile-nav-footer .button {
	display: block;
	max-width: 240px;
}

.main-nav {
	display: flex;
	align-items: center;
	margin-left: 80px;
}

.main-nav li {
	margin: 16px 30px 12px 30px;
}

.main-nav li.item--dropdown{
	margin-right: 28px;
}

.main-nav li.item--more {
	display: none;
}

.main-nav li.item--more a{
	color: $colorGray
}

.main-nav li a {
	display: block;
	position: relative;
}

.main-nav li.item--dropdown a::after{
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  display: block;
  background-size: 16px;
  background-repeat: no-repeat;
  background-position: top right;
  padding: 0 8px 0 8px;
  top: 0px;
  right: -24px;
  background-image: url(../img/icon-arrow-down.svg);
  transition: transform .2s ease;
  opacity: 1;
  color: #fff !important;
}


.main-nav li:first-child {
	margin-left: 0;
}

.main-nav li:last-child {
	margin-right: 0;
}

.main-nav a:hover {
	opacity: .8;
}

.main-nav a:visited {
	//TODO
}

.main-nav a {
	color: $colorWhite;
	text-decoration: none;
}

@media (max-width: 1248px) {
	.header {
		width: 100%;
		left: 0;
		top: 0;
		margin: 24px 0 0 0;
		padding: 0 24px;
	}
}

@media (max-width: 1080px) {
	.header {
		width: 100%;
		left: 0;
		top: 0;
		margin: 24px 0 0 0;
		padding: 0 24px;
	}

	.header-right {
		display: none;
	}
}

@media (max-width: 960px) {
	.logo {
		width: 121px;
		height: 46px;
		background-size: 121px;
	}

	.main-nav li {
		display: none;
	}

	.main-nav li.item--to-show {
		display: block;
	}

	.main-nav li.item--more {
		display: block;
	}

	.main-nav li {
		margin: 16px 8px 12px 8px;
	}

	.main-nav li.item--dropdown{
		margin-right: 28px;
	}
}

@media (max-width: 640px) {
	.header {
		height: auto;
	}

	.header-left {
		align-items: flex-start;
		flex-direction: column;
	}

	.main-nav {
		margin-left: 0;
	}

	.main-nav li {
		margin-top: 24px
	}
}