html {
	box-sizing: border-box;
	--text-color: hsl(210, 11%, 15%);
	--brand-green: hsl(162, 87%, 21%);	/* #076448 */
	--dark-green: hsl(162, 88%, 30%); /* #099067 */
	--medium-green: hsl(162, 73%, 46%); /* #20cb98 */
	--light-green: hsl(162, 87%, 85%);	/* #b7fae6 */
	--green-tint: hsl(162, 75%, 90%); /* #d2f9ed */
	--gray: hsl(210, 7%, 56%);
	--light-gray: hsl(210, 17%, 95%);
	--extra-light-gray: hsl(210, 17%, 98%);
	--white: hsl(0, 0%, 100%);
	--red: hsl(342, 63%, 46%);
	--bizblue: hsl(204, 80%, 40%)					/* #1476b8; */
	--rust: hsl(0, 80%, 40%)			/* b81414 */
	--sand: hsl(48,100,93) /* #FFF8DC; */
	color: var(--text-color);
}
:root {
	box-sizing: border-box;
	font-size: calc(1vw + 0.6em);
}
*,
*::before,
*::after {
	box-sizing: inherit;
}
@media (min-width: 50em) {
	:root {
		font-size: 1.125em;
	}
}
body {
	margin: 0;
	font-family: Helvetica, Arial, sans-serif;
}
.container {
	max-width: 70rem; 
	margin: 0 auto;
	padding: 0 0.25rem;
	/* display: flex; 
	flex-direction: column;
	justify-content: flex-start;
	align-items: stretch; 
	min-height: 100vh; */
}
img {max-width: 100%; height: auto;}

/* HEADER */
header {
	/* 
	height: 3.5rem;
	display: inline-block;
	float: left;
   */
}
header > h1 {
	color: var(--brand-green);
	font-size: 2rem;
	font-family: Sansita, serif;
	font-weight: bold;
	text-shadow: 0.1em 0.1em 0.15em #666;
	text-decoration: none;
	margin: 0 0 0.25rem 0;
}     
header > h3 {
	color: var(--medium-green);
	font-size: 1.2rem;
	font-family: Sansita, serif;
	font-weight: normal;
	text-decoration: none;
	margin: 0 0 0.25rem 0;
}
.logo {
	float:right; 
	max-width: 5.5rem;
	max-height: 2rem;
	margin: 0;
}
.hero {
	background-image: url("https://desert-horizons.com/mesquite/images/Woman_Library_Books_1600x753c.jpg");
	background-size: cover;
	height: 35vh;
	background-color: white;
	background-position: center;
	background-repeat: no-repeat;
	position: relative;
	margin: 0 auto;
	color: #FFEBCD;
	text-align: center;
	font-size: 1.2rem;
	/* clear: both; */
}

/* NAV */
nav {
	color: var(--medium-green);
	/* background-color: var(--light-green); */
	border-bottom: 0.1rem solid var(--dark-green);
}
nav ul {
	display: flex;
	align-items: flex-end;
	justify-content: flex-end;
	list-style-type: none;
	height: 2rem;
	margin: 0;
}
nav li {
	font-size: 0.85rem;
}
.top-nav > li + li {
	margin-left: 0.625em;
}
.top-nav a {
	display: block;
	padding: 0.3em 1.25em;
	color: var(--white);
	background: var(--brand-green);
	text-decoration: none;
	border-radius: 0.5rem 0.5rem 0 0;
}
.top-nav a:hover {
	background-color: var(--dark-green);
}
.top-nav__featured > a {
	color: var(--brand-green);
	background-color: var(--white);
}
.top-nav__featured > a:hover {
	color: var(--medium-green);
	background-color: var(--white);
}
		
/* CONTENT */
main {
	display: flex;
	flex-grow: 1;
	flex-direction: row;
	justify-content: flex-start;
	align-items: stretch;
	/* margin-top: 1rem; */
	/* background-color: #709b90; */
	min-height: calc(100vh-3.5rem);
}
article {
	flex-grow: 1;
	background-color: #fff;
	min-width: 10em;
}
section {
	 display: flex;
		flex 1 0 auto;
		flex-direction: row;
	 justify-content: flex-start;
		flex-wrap: wrap;
	 align-content: flex-start;
		background-color: var(--green-tint);
}
column {
					width: 25%;
					min-width: 10rem;
					border-right: 0.2rem solid var(--white);
					border-bottom: 0.1rem solid var(--dark-green);
					padding: 0.25em;
					}
.subtitle {
	color: var(--dark-green);
	margin-bottom: 0.5em;
}
section li {
	padding: 0.2em 0;
	margin-left: -1em;
}
aside {
	flex: 0 0 10rem;
	/* align-items: center; */ 
	min-width: 10em;
	margin-left: 1rem;
	background-color: var(--sand);
	color: var(--dark-green);
	margin-top: 1rem;
	padding: 0.5em;
}
@media (min-width: 35rem) {
.cols3 {
					column-count: 3; 
					column-gap: 2em; 
					column-rule: 0.1em solid white;
					background-color: var(--green-tint);
					padding: 0.25em;
					}
}
footer {
	height: 1rem;
	margin-top: 0.5rem;
	text-align: center;
	font-size: 0.6rem;
	font-weight: normal;
	font-style: italic;
}
footer > a:link {
	font-weight: normal;
}

/* LINKS */
a {
	color: var(--medium-green);
}	
a:link, a:visited {
	color: var(--medium-green);
	font-weight: bold;
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}
a:active {
	color: var(--rust);
}

/* FLIPCARD */
.flipcard {
	position: relative;
	display: inline-block; 
	width: 30%;
	/*  width: 12em; */
	min-width: 7em;
	height: 10em;
	perspective: 500px;
	margin: 1%;
}
.flipcard.v:hover .front, .flipcard.v.flip .front{
	transform: rotateX(180deg);
}
.flipcard.v:hover .back, .flipcard.v.flip .back{
	transform: rotateX(0deg);
}
.flipcard.v .back{
	transform: rotateX(-180deg);
}
.flipcard.h:hover .front, .flipcard.h.flip .front{
	transform: rotateY(180deg);
}
.flipcard.h:hover .back, .flipcard.h.flip .back{
	transform: rotateY(0deg);
}
.flipcard.h .back{
	transform: rotateY(-180deg);
}
.flipcard .front, .flipcard .back {
	position:absolute;
	width: 100%;
	height: 100%;
	box-sizing: border-box;
	transition: all 0.5s ease-in;
	color: white;
	background-color: #099067;
	/*background-color: #00CED1; */
	padding: 0.5em;
	backface-visibility: hidden;
	overflow: auto;
}
.flipcard .back {
	font-size: 0.8em;
}
.icon {
	height: 4em;
	width: 4em;
	margin: 0.25em auto;
}
.more {
	font-size: 0.75em;
	font-style: italic;
	text-align: center;
}