@import url('https://fonts.googleapis.com/css2?family=PT+Sans:wght@400;700&display=swap');

@font-face {
	font-family: 'Liberation Serif';
	font-style: normal;
	font-weight: 400;
	src:
		local('Liberation Serif'),
		local('LiberationSerif-Regular'),
		url("fonts/font.php?f=liberation_serif.woff") format('woff'),
		url("fonts/font.php?f=liberation_serif.ttf") format('truetype')
}

body, .main-wrapper {
	min-width: 150px;
}

.main-wrapper {
	display: flex;
	justify-content: stretch;
	position: fixed;
	padding-top: 1em;
	padding-bottom: 1em;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
}


.main-article {
	flex: 1 1 40em;
	padding: 0 3em;
	font-family: 'PT Sans', 'Roboto', sans-serif;
	overflow: auto;
}
.main-article h1 {
	margin: 0.6em 0 0.5em;
	text-align: center;
	text-transform: uppercase;
}
.main-article h2 {
	margin: 0;
	font-size: 1.4em;
}
.main-article p {
	text-align: justify;
	line-height: 1.5;
	font-size: 1.125em;
	font-family: "Liberation Serif", serif;
	margin: 0.5em 0;
}


.main-side-panel {
	display: flex;
	flex-direction: column;
	align-items: stretch;
	flex: 0.1 0.75 15em;
	padding: 0.25em 1.5em 0.25em 1em;
	box-shadow: 0.2em 0 0.3em -0.3em rgba(0,0,0,0.8);
	overflow-y: auto;
	position: relative;
}

label[for="theme-switch"] {
	cursor: pointer;
	font-style: italic;
	text-decoration: underline;
	font-size: 0.875em;
	text-align: center;
}
/*label[for="theme-switch"]::before {
	content: attr(data-text-unchecked)
}
#theme-switch:checked ~ label[for="theme-switch"]::before {
	content: attr(data-text-checked)
}*/
.switching-label::before {
	content: attr(data-text-unchecked)
}
input[type="checkbox"]:checked ~ .switching-label::before {
	content: attr(data-text-checked)
}

#theme-switch,
.main-side-panel--switch,
#main-side-panel--switch {
	display: none;
}
@media (max-width: 40em) {
	.main-side-panel {
		display: none;
	}
	#main-side-panel--switch:checked ~ .main-side-panel {
		display: flex;
		position: absolute;
		background-color: white;
		top: 1em;
		bottom: 1em;
	}
	.main-side-panel--switch {
		display: block;
		position: fixed;
		left: 0.5em; top: 0.5em;
		width: 2.5em;
		height: 2.5em;
		transition-duration: 0.25s;
		cursor: pointer;
		z-index: 9;
		border-radius: 50%;
		border: 0.25em solid white;
		box-sizing: border-box;
		overflow: hidden;
		background-color: white;
		box-shadow: 0.0625em 0.0625em 0.25em 0 gray;
	}
	.main-side-panel--switch::before,
	.main-side-panel--switch::after {
		display: block;
		position: absolute;
		width: 100%;
		height: 0;
		top: 50%;
		transform: translateY(-50%);
		border-top: 0.125em solid gray;
		content: "";
		filter:
			drop-shadow(0 -0.5em 0 gray)
			drop-shadow(0 0.5em 0 gray);
		transition-duration: 0.25s;
	}
	#main-side-panel--switch:checked ~ .main-side-panel--switch::before,
	#main-side-panel--switch:checked ~ .main-side-panel--switch::after {
		filter:
			drop-shadow(0 0 0 transparent)
			drop-shadow(0 0 0 transparent);
	}
	#main-side-panel--switch:checked ~ .main-side-panel--switch::before {
		transform: rotateZ(135deg);
	}
	#main-side-panel--switch:checked ~ .main-side-panel--switch::after {
		transform: rotateZ(-135deg);
	}
	.main-article {
		padding: 0 2em;
	}
}
@media (max-width: 320px) {
	html {
		font-size: 12px;
	}
	.main-article {
		padding: 0 1em;
	}
}
@media (max-width: 200px) {
	html {
		font-size: 10px;
	}
	.main-article {
		padding: 0 0.5em;
	}
}

.main-side-panel hr {
	width: 100%;
	border: none;
	border-top: silver 0.1em solid;
}
.main-side-panel__links-heading {
	margin:0;
	text-align: center;
	font-family: 'PT Sans', 'Roboto', sans-serif;
	text-transform: uppercase;
}
.main-side-panel__links {
	list-style-type: none;
	padding: 0;
	margin: 0;
	text-align: center;
	font-family: 'PT Sans', 'Roboto', sans-serif;
	line-height: 1.5em;
}
.nav-links.main-side-panel__links {
	font-family: 'Liberation Serif', serif;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	margin: 0.5em 0;
	line-height: 2em;
	overflow-y: auto;
}
.main-side-panel__links__text,
.main-side-panel__links__link {
	margin-top: 0;
}
.main-side-panel__links__link a {
	text-decoration: none;
	color: darkslategray;
	transition-duration: 0.125s;
}
.main-side-panel__links__link a[extra]::after {
	content: attr(extra);
	filter: contrast(3);
	vertical-align: super;
	font-size: 0.625em;
	font-style: italic;
	font-family: sans-serif;
	font-weight: bold;
}
.main-side-panel__links__link a:hover {
	color: silver;
}
.main-side-panel__links__link a:active {
	color: gray;
}
.main-side-panel__link-description {
	flex: 1 0 6em;
	padding: 1em 0.5em;
	text-align: center;
	position: relative;
	font-family: 'Liberation Serif', serif;
}
.main-side-panel__link-description::before,
.main-side-panel__link-description::after {
	position: absolute;
	left:0.5em; top:1em; right:0.5em; bottom: 1em;
	text-align: center;
	transition-duration: 0.5s;
}
.main-side-panel__link-description::before {
	color: silver;
	content: attr(data-placeholder);
}
.main-side-panel__link-description:not([data-description=""])::before {
	color: transparent;
}
.main-side-panel__link-description::after {
	color: transparent;
	content: attr(data-last-description);
}
.main-side-panel__link-description:not([data-description=""])::after {
	color: darkslategray;
}