:root {
    --accent-bkg-color: black;
	--accent-txt-color: white;
	--content-bkg-color: white;
	--content-txt-color: black;
	--form-disabled-color: #606060;
	--button-accept: #0F0;
	--success-color: #0F0;
	--button-cancel: #F00;
	--fail-color: #F00;
}

* {
	font-family: monospace;
}

body {
	display: grid;
	min-height: 100vh;
	grid-template-rows: 1fr auto;
	grid-template-columns: auto 1fr;
	grid-template-areas: 
		"bar	main"
		"footer main"
	;
	margin: 0px;
}

header {
	grid-area: bar;
}

main {
	padding: 20px;
	grid-area: main;
}

footer {
	grid-area: footer;
	text-align: center;
}

header, footer {
	background-color: var(--accent-bkg-color);
	color: var(--accent-txt-color);
	padding: 20px;
}

nav {
	display: flex;
	flex-direction: column;
}

nav a {
	color: var(--accent-txt-color);
	font-size: x-large;
	text-decoration: none;
	position: relative;
}

nav a:before {
	position: absolute;
    width: 0px;
    height: 100%;
    left: 0px;
    top: 0px;
    content: '';
    background: var(--accent-txt-color);
    opacity: 0.3;
    transition: all 0.3s;
}

nav a[aria-current="true"]:before {
	width: 10px;
}

nav a:hover:before {
    width: 100%;
}

h1 {
	font-size: xx-large;
	margin: 0px;
	text-align: center;
}

h2 {
	font-size: xx-large; 
	margin: 0px;
}

h3 {
	font-size: x-large; 
}

p {
	font-size: large;
}

.hidden {
	visibility: hidden;	
}

.none {
	display: none;
}

hr {
	margin-top: 20px;
	margin-bottom: 20px;
	border: 1px solid;
	border-color: inherit;
}