:root{
	--navbar-height: 3rem;
	--hamburg-size: 2.5rem;
	--hamburg-size-half: calc(var(--hamburg-size)/1.5);
	--hamburg-size-tenth: calc(var(--hamburg-size)/10);
}

.navbar {
	position: relative;
	display: grid;
	grid-template-areas: "brand . nav hamburg";
	grid-template-columns: auto 1fr auto auto;
	grid-template-rows: minmax(var(--navbar-height), auto) 0px 0px 0px;
	transition: height 300ms ease;
}
.navbar:not(.banner) {
	background-color: white;
}

.navbar__brand {
	grid-area: brand;
	height: 100%;
	display: flex;
	align-items: center;
}
.logo-as-text {
	font-size: var(--fs-xl);
	line-height: 1.2;
	margin: 0.3em 0px;
}
.navbar__nav {
	grid-area: nav;
	margin: auto 0;
	font-size: var(--fs-sm);
}
.navbar__nav__search {
	display: flex;
	flex-direction: row;	
	gap: var(--spacing-xs);
	width: fit-content;
}
.navbar__hamburg {
	grid-area: hamburg;
	margin: auto 0;
}

body:has(> .banner) .navbar__hamburg {
	display: flex;
}
body:has(> .banner) .navbar__hamburg:not(.dark) .line {
	background: white;
}

/* mobile */
@media screen and (max-width: 64rem) {
	
	body:has(> .banner) .navbar__brand {
		display: none;
	}
	.navbar__brand {
		padding-right: var(--hamburg-size);
	}

}

@media screen and (min-width: 64rem) {
	footer nav ul {
		display: flex;
		flex-direction: row;
		gap: var(--spacing-xl);
	}
}

@media screen and (max-width: 96rem) {
	
	footer > * { display: none; }

	.navbar__nav {
		font-size: var(--fs-xl);
		margin-top: 2rem;
	}

	.navbar__hamburg {
		display: flex;
	}

	.navbar.navbar-expanded {
		grid-template-areas: 
			"brand . hamburg"
			" .   .    .   "
			"nav nav  nav  "
			" .   .    .   "
		;
		grid-template-rows: var(--navbar-height) 2em 1fr 2em;
		grid-template-columns: 1fr auto auto;
		position: fixed;
		top: 0; left: 0;
		height: 100vh; width: 100%;
		z-index: 100;
		padding-left: var(--spacing-sm);
		padding-right: var(--spacing-sm);
	}
	.navbar:not(.navbar-expanded) nav {
		display: none;
	}
	.navbar__nav {
		height: 100%;
		display: grid;
		grid-template-areas: 
			"main language"
			"search ."
			". ."
			"credits credits"
		;
		grid-template-columns: 1fr auto;
		grid-template-rows: auto auto 1fr auto;
	}
	.navbar__nav__main-links {
		grid-area: main;
		font-size: var(--fs-3xl);
		line-height: 1.2;
	}
	.navbar__nav__search {
		grid-area: search;
		font-size: var(--fs-3xl);
		margin-top: 1em;
	}
	.navbar__nav__footer-links {
		grid-area: credits;		
		display: flex;
		flex-direction: row;
		flex-wrap: wrap;
	}
	.navbar__nav__footer-links > * {
		margin-right: 1em;
	} 
	.navbar .language-selector {
		font-size: var(--fs-xl);
		grid-area: language;
	}
	.language-selector__toggle {
		gap: 0.5em;
		padding: 0.05em 0.6em;
		border: 1px solid currentColor;
		border-radius: 0.8em;
	}
	.language-selector__list {
		left: 0.6em;
		line-height: 2em;
	}
}


/* desktop */
@media screen and (min-width: 96rem) {
	.navbar__nav, 
	.navbar__nav__main-links {
		display: flex;
		flex-direction: row;
		gap: var(--spacing-xl);
	}

	.navbar__nav__footer-links {
		display: none;
	}

	.navbar__hamburg {
		display: none;
	}
}

/* language menu */

.language-selector {
	position: relative;
	cursor: pointer;
}
.language-selector__toggle {
	display: flex;
	flex-direction: row;
	gap: var(--spacing-sm);
}
.language-selector__toggle i {
	margin-top: 0.3em;
}
.language-selector__list {
	position: absolute;
	z-index: 100;
}
.language-selector__list.hidden {
	display: none;
}

/* hamburg */
#hamburg {
	display: none;
}

.navbar__hamburg {
	position: fixed;
	top: 0.3rem; 
	right: var(--spacing-sm);
	z-index: 9999;
	align-items: center;
	justify-content: center;
	width: var(--hamburg-size);
	height: var(--hamburg-size);
	cursor: pointer;
}

.navbar__hamburg .line {
	position: absolute;
	z-index: 600;
	display: block;
	width: var(--hamburg-size);
	height: 4px;
	background: var(--mainColor);
	transform-origin: center;
	transition: transform 350ms ease-in;
}
.navbar__hamburg .line:nth-child(1) { transform: translatey(calc(var(--hamburg-size)/-6)); }
.navbar__hamburg .line:nth-child(2) { transform: scale(0); }
.navbar__hamburg .line:nth-child(3) { transform: translatey(calc(var(--hamburg-size)/6)); }

.navbar__hamburg.active .line:nth-child(1) {
	width: var(--hamburg-size);
	transform: translatex(var(--hamburg-size-tenth)) rotate(-45deg);
}
.navbar__hamburg.active .line:nth-child(3) {
	width: var(--hamburg-size);
	transform: translatex(var(--hamburg-size-tenth)) rotate(45deg);
}


/* scroll buttons */

#scrollup, #scrolldown {
	bottom: var(--spacing-xl);
	right: var(--spacing-lg);
	z-index: 100;
	color: black;
	display: flex;
	justify-content: center;
	align-items: center;
}
#scrollup svg,
#scrolldown svg {
	height: var(--hamburg-size);
	width: var(--hamburg-size);
}

#scrolldown:not(.dark) {
	color: white;
}

#scrollup {
	display: none;
	position: fixed;
	transform: rotate(180deg);
}
#scrollup.show {
	display: flex;
}
#scrollup .arrow::before {
	transform: rotate(45deg);
	border-color: var(--mainColor);
}
#scrolldown {
	position: absolute;
}
#scrolldown .arrow::before {
	transform: rotate(-135deg);
}

/* subnav */

.subnav {
	display: grid;
	grid-template-columns: subgrid;
	font-size: var(--fs-lg);
	padding: var(--spacing-sm) 0;
	background: #fff;
}
.subnav > * {
	grid-column: 2/3;
}
@media screen and (min-width: 64rem) {
	.subnav {
		position: sticky;
		top: 0;
		z-index: 20;
	}
	.subnav ul {
		display: flex;
		flex-direction: row;
		gap: var(--spacing-lg);
	}
	.subnav.border { 
		border-bottom: 1px solid var(--borderColor); 
	}
}

/* footer */
footer {
	padding: var(--spacing-2xl) calc(2 * var(--spacing-2xl));
}
footer nav ul {
	width: fit-content;
	margin-left: auto;
}


.banner { 
	position: relative;
	width: 100%; 
	display: grid;
	grid-template-areas: 
		"image"
		"overlay"
	;
	grid-template-rows: auto auto;
	grid-template-columns: 1fr;
	overflow: hidden;
}
.banner .figure-wrapper,
.banner__content {
	grid-area: image;
}
.banner .figure-wrapper figure img {
	width: 100%;
	object-fit: cover;
	object-position: center;
}

.banner__overlay {
	height: auto;
	grid-area: overlay;
	display: flex;
	flex-direction: column;
	padding: var(--spacing-layout);
	padding-bottom: 0;
}
.banner__brand {
	min-height: var(--navbar-height);
	display: flex;
	align-items: center;
}
.banner__spacer {
	flex-grow: 1;
}
.banner__title { 
	font-size: var(--fs-2xl);
	margin: 0;
}
.banner__subtitle { 
	margin-top: 0.5em; 
	font-size: var(--fs-md); 
	font-weight: 300;
}

@media screen and (min-width: 64rem) {
	.banner {
		height: 100vh;
		grid-template-areas: "overlay image";
		grid-template-columns: minmax(auto, 1fr) 2fr;
		grid-template-rows: 1fr;
	}
	.banner__overlay {	
		height: 100vh;
		border-bottom: 1px solid var(--borderColor);
		padding: 0 var(--spacing-layout) var(--spacing-md) var(--spacing-layout);
	}
	.banner__title {
		font-size: var(--fs-3xl);
	}
	.banner__title,
	.banner__subtitle {
		color: var(--mainColor);
	}
	
	.banner .figure-wrapper figure {
		height: 100vh;
	}
	.banner .figure-wrapper figure img {
		height: 100vh;
	}
}

@media screen and (max-width: 64rem) {	
	body:has(> .banner) .navbar__brand {
		display: none;
	}
	.banner .figure-wrapper figure {
		aspect-ratio: 3/4;
	}
	#scrolldown {
		display: none;
	}
}