:root {
	--dark-fg-color: white;
	--dark-bg-color: black;
	--dark-alt-bg-color: #101010;
	--dark-field-hover-bg-color: #000000;
	--dark-field-active-bg-color: #404040;
	--dark-link-idle-color: #ff8e8e;
	--dark-sep-color: #2e2e2e;
}

:root {
	color-scheme: light dark;

	--nav-fg-color: white;
	--nav-bg-color: darkred;
	--nav-bg-color-selected: #C00000;
	--text-subtle-color: gray;
}

:root {
	--fg-color: var(--dark-fg-color);
	--bg-color: var(--dark-bg-color);
	--alt-bg-color: var(--dark-alt-bg-color);
	--field-hover-bg-color: var(--dark-field-hover-bg-color);
	--field-active-bg-color: var(--dark-field-active-bg-color);
	--link-idle-color: var(--dark-link-idle-color);

	--theme-switch-icon: var(--dark-theme-switch-icon);
	--narrow-layout-switch-icon: var(--dark-narrow-layout-switch-icon);
	--wide-layout-switch-icon: var(--dark-wide-layout-switch-icon);
	--fg-gnu-head: var(--light-gnu-head);
	--bg-gnu-head: var(--dark-gnu-head);

	--sep-color: var(--dark-sep-color);
}

[data-color-scheme="invert"] {
	--fg-color: var(--light-fg-color);
	--bg-color: var(--light-bg-color);
	--alt-bg-color: var(--light-alt-bg-color);
	--field-hover-bg-color: var(--light-field-hover-bg-color);
	--field-active-bg-color: var(--light-field-active-bg-color);
	--link-idle-color: var(--light-link-idle-color);

	--theme-switch-icon: var(--light-theme-switch-icon);
	--narrow-layout-switch-icon: var(--light-narrow-layout-switch-icon);
	--wide-layout-switch-icon: var(--light-wide-layout-switch-icon);
	--fg-gnu-head: var(--dark-gnu-head);
	--bg-gnu-head: var(--light-gnu-head);

	--sep-color: var(--light-sep-color);
}

:root {
	--layout-switch-icon: var(--narrow-layout-switch-icon);
	--lang-switch-icon: var(--en-lang-switch-icon);
}

[lang="en"] {
	--lang-switch-icon: var(--cz-lang-switch-icon);
}

[data-layout="wide"] {
	--layout-switch-icon: var(--wide-layout-switch-icon)
}

@font-face {
	font-family: JetBrains Mono;
	src: url("jetbrains_mono.woff2") format("woff2");
}

html {
	background-color: var(--bg-color);
	min-height: calc(100% - 32px);
	margin: 0;
}

body {
	background-image: url("background.jpg");
	background-attachment: fixed;
	background-size: cover;
	background-position: center;
	font-family: JetBrains Mono, "Noto Sans", sans-serif;
	line-height: 1.8em;
	word-spacing: .1em;
	font-weight: 150;
	letter-spacing: -.05ch;
	display: flex;
	flex-direction: column;
	color: var(--fg-color);
	background-color: var(--bg-color);
	margin: 0;
	min-height: 100vh;
}

header {
	display: flex;
	padding: 1.5em 0;
	position: relative;
	align-items: center;
	justify-content: space-between;
	width: min(90%, 50em);
	margin: auto;
}

b {
	font-weight: 600;
}

[data-layout="wide"] header {
	width: 90%;
}

header .buttons {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding-left: 1em;
}

.light-dark-switch {
	cursor: pointer;
	content: var(--theme-switch-icon);
	width: 20px;
}

.layout-switch {
	cursor: pointer;
	content: var(--layout-switch-icon);
	width: 20px;
}

.lang-switch {
	cursor: pointer;
	content: var(--lang-switch-icon);
	width: 20px;
}

a {
	color: var(--link-idle-color);
	text-decoration: none;
}

header * {
	margin: 8px 0;
}

.header-title {
	font-size: 2em;
	font-weight: bold;
}

.header-subtitle {
	color: var(--text-subtle-color);
	font-size: 1.3em;
}

.full-width {
	width: 100%;
}

.img-text-container {
	position: relative;
}

.img-text {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	opacity: 100%;
	color: var(--fg-color);
	z-index: 1;
	pointer-events: none;
}

.countdown {
	font-family: monospace;
	font-weight: bold;
	font-size: 2em;
	text-align: center;
	margin: 2em auto;
	padding: 0 .5em;
	font-family: JetBrains Mono, monospace;
	width: fit-content;
	font-weight: bold;
}

@media only screen and (min-width: 50rem) {
	.countdown {
		font-size: 3em;
	}
}

nav {
	color: var(--nav-fg-color);
	background-color: var(--nav-bg-color);
	user-select: none;
	text-transform: uppercase;
	width: min(90%, 50em);
	margin: auto;
	margin-bottom: 2em;
	border-radius: .5em;
	box-shadow: .5em .5em 1em rgba(0, 0, 0, 0.2);
	overflow: hidden;
}

nav div {
	width: 100%;
}

[data-layout="wide"] nav {
	width: 90%;
}

[data-layout="wide"] nav div {
	width: 90%;
}

.menu-button {
	display: none;
	width: 100%;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	cursor: pointer;
	margin: 1em 0;
}

.menu-button .inner {
	display: flex;
	flex-direction: column;
}

.menu-button .inner div {
	display: block;
	transition: .2s ease opacity, .2s ease transform, .2s ease width;
	height: 3px;
	width: 30px;
	background-color: white;
	border-radius: .1em;
	margin: 3px 0;
}

#menu-trigger:checked + .menu-button .center {
	width: 0;
	transform: translateX(4px);
}

#menu-trigger:checked + .menu-button .upper {
	transform: translateY(100%) translateY(6px) rotate(45deg);
}

#menu-trigger:checked + .menu-button .lower {
	transform: translateY(-100%) translateY(-6px) rotate(-45deg);
}

#menu-trigger {
	display: none;
}

@media only screen and (max-width: 50rem) {
	.menu-button {
		display: flex;
	}

	#menu-trigger ~ nav {
		opacity: 0;
	}

	#menu-trigger:checked ~ nav {
		opacity: 1;
		height: 11.25em;
	}

	nav {
		transition: .25s ease height, .25s ease opacity;
		border-radius: 0;
		width: 100%;
		height: 0;
		overflow: hidden;
		margin-bottom: 0;
	}

	nav div {
		width: 100% !important;
	}
}

main {
	flex-grow: 1;
	padding: 16px;
	width: min(90%, 50em);
	margin: auto;
}

[data-layout="wide"] main {
	width: 90%;
}

.gnu-head {
	content: var(--fg-gnu-head);
}

footer {
	border-top: 1px solid var(--sep-color);
	color: gray;
	padding: 1em;
	width: fit-content;
	margin: 2em auto;
	margin-top: 4em;
	font-size: .9em;
	word-spacing: 0em;
	line-height: 1em;
}

footer>* {
	margin: 8px 0;
}

h1 {
	margin: 2em 0;
	margin-top: 4em;
	font-size: 1.5em;
	font-weight: bold;
}

h2 {
	font-size: 1.25em;
	font-weight: bolder;
	margin-top: 3em;
}

h3 {
	font-size: 1em;
}

table {
	margin: 2em auto;
	margin-top: 4em;
	border-spacing: 0;
	border: 1px solid var(--sep-color);
}

th, td {
	background-color: var(--alt-bg-color);
	border: 1px solid var(--sep-color);
	padding: 4px;
}

ul li {
	margin: 8px 0;
}

ol li {
	margin: 8px 0;
}

@media (width >= 500px) {
	figure.aside {
		width: 200px;
		margin: 0 0 16px 16px;
		float: right;
	}
}

figure img,svg,inserted-svg {
	display: block;
	margin: 0 auto;
	max-width: 100%;
	max-height: 100vh;
}

figcaption {
	font-style: italic;
}

.poster {
	margin: 5em auto !important;
	max-width: 40rem;
	filter: drop-shadow(0 0 5em black);
}

nav ul {
	width: 100%;
	height: 100%;
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style-type: none;
}

[data-layout="wide"] nav ul {
	justify-content: left;
}

@media (width < 50rem) {
	nav ul {
		flex-direction: column;
	}

	nav ul {
		margin-left: 0 !important;
	}

	nav ul li {
		width: 100%;
	}
}

nav ul li {
	margin: 0;
}

nav ul li a {
	display: block;
	
	padding: .5em 1em;

	text-align: center;
	text-decoration: none;
	color: var(--nav-fg-color);
	
	font-weight: bold;

	transition: background-color .3s;
}

nav ul li a:hover {
	background-color: var(--nav-bg-color-selected);
	color: var(--nav-fg-color);
}

nav ul li a:active {
	color: var(--nav-fg-color);
}

nav ul li a:visited {
	color: var(--nav-fg-color);
}

@media (width >= 50rem) {
	:not([data-layout="wide"]) body {
		margin: 0 auto;
	}
	
	[data-layout="wide"] body {
		margin: 0;
	}
}

@media (width < 50rem) {
	body {
		margin: 0;
	}
	.img-text {
		position: relative;
		margin-bottom: 32px;
	}
	.layout-switch {
		display: none;
	}
}

@media print {
	.light-dark-switch {
		display: none;
	}
	.layout-switch {
		display: none;
	}
	nav {
		display: none;
	}
}

.map {
	display: block;
	width: 90%;
	margin: 0 auto;
	margin-top: 4em;
}

.map-open {
	display: block;
	width: fit-content;
	margin: 0 auto;
}