/* 802 Style Sheet */
html {
	font-family: Arial, Helvetica, sans-serif;
	background-color: ivory;
}

* {
	box-sizing: border-box;
}

body {
	display: flex;
	flex-direction: column;
	align-items: center;
	height:  100vh;
	margin: 0;
	padding: 8px;
}

header {
	display: grid;
	grid-template-areas:
		"title-icon  title-text  nav-hamburger  nav-social"
		"title-icon  nav-menu    nav-menu       nav-menu";
}

/* remove default styling for lists in header */
header ul,
header li {
	list-style: none;
	margin: 0;
	padding: 0;
}

.title-icon {
	grid-area: title-icon;
	align-self: right;
}

.title-text {
	grid-area: title-text;
	justify-self: left;
	padding-left: 5px;
	color: #042eff;
	font-size: 28px;
}

.nav-hamburger {
	display: none;	/* hide by default */
	grid-area: nav-hamburger;
	margin: 3px;
}

.nav-menu-icon {
	display: inline-block;
	height: 1.5em;
	width: 1.5em;
	vertical-align: middle;
	background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(0, 0, 0, 0.55)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E")
}

.nav-menu {
	grid-area: nav-menu;
	display: flex;
	flex-direction: row;
	padding: 5px;
}

/* Items in the nav menu */
.nav-menu-item {
	position: relative;
}

.nav-button {
	background-color: transparent;
	color: black;
	padding: 16px;
	font-size: 16px;
	font-weight: 700;
	border: none;
	cursor: pointer;
}

/* Change the background color of the dropdown button when the dropdown content is shown */
.nav-button:hover {
	background-color: #3e484e66;
}

/* Submenu (hidden by default) */
.nav-submenu {
	display: none;
	position: absolute;
	background-color: #f9f9f9;
	min-width: 200px;
	box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
	z-index: 1;
}

/* Show the submenu on hover (mouse) or focus (keyboard tabbing) */
.nav-submenu.visible {
	display: block;
}

/* Links inside the dropdown */
.nav-submenu a {
	color: black;
	padding: 12px 16px;
	text-decoration: none;
	display: block;
}


/* Change color of submenu links on hover */
.nav-submenu a:hover {
	background-color: #3e484ea0
}

.twitter-feed {
	display: none;
	position: absolute;
	right:  0;
	top: 100%;
	max-height: 80vh;
	overflow:  auto;
	background-color: #f9f9f9;
	min-width: 400px;
	box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
	z-index: 1;
}

.twitter-feed.visible,
.twitter-button:hover ~ .twitter-feed {
	display: block;
}

.nav-social {
	grid-area: nav-social;
	display: flex;
	flex-direction: row;
	margin: 0;
	list-style: none;
}

.nav-social .nav-item {
	margin: 3px;
	position: relative;
}

@media (max-width: 992px) {

	.nav-hamburger {
		display: block;
	}

	.nav-menu {
		display: none;
		flex-direction: column;
	}

	.nav-menu.visible {
		display: flex;
	}

	.nav-submenu {
		position: relative;
	}

}

main {
	display: flex;
	flex-direction: column;
	flex: 1;
	overflow: auto;
}

footer {
	width: 100%;
}

section {
	display: flex;
	flex-wrap: wrap;
	max-width: 1400px;
	align-content: center;
}

.main-section {
	display: grid;
	grid-template-columns: 1fr 1fr;
}

.main-img {
	width:  100%;
	max-width: 1000px;
	margin:  auto;
}

.section-column {
	display: flex;
	flex-direction:  column;
	width: 50%;
}

.section-item {
	display: flex;
	flex-direction: column;
	position: relative;
}

.section-item-row {
	display: flex;
}

@media (max-width: 992px) {
	.main-section {
		grid-template-columns: 1fr;
	}
}