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

* {
	font-family: monospace;
	font-size: large;
}

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

header, footer {
	background-color: var(--accent-bkg-color);
	color: var(--accent-txt-color);
	padding: 20px;
	width: 15vw;
	min-width: max-content;
	max-width: 25ch;
}

main {
	background-color: var(--content-bkg-color);
	color: var(--content-txt-color);
	padding: 20px;
}

footer p {
	text-align: center;
}

nav {
	display: flex;
	flex-direction: column;
	row-gap: 20px;
}

nav a {
	color: var(--accent-txt-color);
	font-size: xx-large;
	text-decoration: none;
	position: relative;
	padding: 10px;
	padding-left: 20px;
}

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, h2, h3, p {
	font-family: monospace;
}

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

h2 {
	font-size: x-large; 
	text-align: center;
}

h3 {
	font-size: larger; 
	text-align: center;
}

p {
	text-align: left;
}

@media screen and (min-width: 480px) {
.center-div {
	min-width: 480px;
	max-width: 50%;
	width: fit-content;
	margin-left: auto;
	margin-right: auto;
}
}
@media screen and (max-width: 480px) {
.center-div {
	width: 100%;
	margin-left: auto;
	margin-right: auto;
}
}

.hidden {
	visibility: hidden;	
}

.none {
	display: none;
}