[aria-controls="main-nav-list"]
{
	display: none;
	margin-left: 1em;
	border: 1px solid hsla(0, 0%, 0%, 0.5);
	padding: 0.125em 0.25em;
	background: hsla(0, 100%, 100%, 0.5);
	border-radius: 1.5em;
	font: inherit;
	vertical-align: middle;
	
	border: none;
	background: transparent;
	color: inherit;
}

[aria-controls="main-nav-list"]:focus,
[aria-controls="main-nav-list"]:hover
{
	background: hsla(0, 100%, 100%, 0.8);
}

[aria-controls="main-nav-list"]::before
{
	display: inline-block;
	margin-right: 0.25em;
	width: 1em;
	font-size: 1.25em;
	line-height: 0;
	text-align: center;
}

[aria-controls="main-nav-list"][aria-expanded="true"]::before
{
	content: "×";
}

[aria-controls="main-nav-list"][aria-expanded="false"]::before
{
	content: "☰";
}

@media none and (max-width: 50em)
{
	[aria-controls="main-nav-list"]
	{
		display: inline;
	}
	
	#pageheader #main-nav ul
	{
		position: fixed;
		top: 0;
		right: 0;
		margin: 0;
		padding: 2em;
		background: #2c639f;
		color: white;
	}
	
	#pageheader #main-nav li
	{
		display: block;
	}
	
	#main-nav li:not(:first-child)
	{
		margin-left: 0;
	}
	
	#pageheader #main-nav a
	{
		display: block;
		color: inherit;
	}

	#main-nav [aria-controls="main-nav-list"][aria-expanded="false"] + ul
	{
		visibility: hidden;
		/* or alternatively: border: none; */
		margin: 0;
	}
	
	#main-nav [aria-controls="main-nav-list"][aria-expanded="false"] + ul li
	{
		display: none;
	}
}

#pageheader #main-nav li
{
	position: relative;
}

#pageheader #main-nav li:focus-within > ul,
#pageheader #main-nav li:hover > ul
{
	display: block;
	position: absolute;
	right: 0.5rem;
	padding-top: 1.5em;
	z-index: 1;
}

/* IE & EDGE Polyfill */
#pageheader #main-nav li[focus-within] > ul,
#pageheader #main-nav li:hover > ul
{
	display: block;
	position: absolute;
	right: 0.5rem;
	padding-top: 1.5em;
	z-index: 1;
}

#pageheader #main-nav li > ul
{
	position: relative;
}

#pageheader #main-nav li > ul::after
{
	content: '';
	position: absolute;
	top: 0;
	right: 0;
	width: 1em;
	height: 1em;
	transform: translate(-1.25em, 1.5em) rotate(45deg);
	transform-origin: top right;
	background: #2862a1;
}

#pageheader #main-nav li li,
#pageheader #main-nav li li a
{
	background: #2862a1;
	color: white;
	display: block;
}

#pageheader #main-nav li li
{
	padding: 0 1em;
}

#pageheader #main-nav li li:first-child
{
	padding-top: 1em;
}

#pageheader #main-nav li li:last-child
{
	padding-bottom: 1em;
}

#pageheader #main-nav li li a:focus,
#pageheader #main-nav li li a:hover
{
	background: #154579;	
}

#main-nav > div
{
	position: relative;
	margin-left: auto;
}

#pageheader .call-to-action
{
	margin: 0.5em 0;
	padding: 0.5em 1em;
	font-size: 18px;
	font-size: calc((18 - 16)/640 * 100vw + (16 - (18 - 16)/2) * 1rem/16);
}

#main-nav:not(.is-scrolled-down) .call-to-action:not(:focus),
#main-nav.is-scrolled-down #main-nav-list:not(:focus-within),
#main-nav > div:focus-within .call-to-action:not(:focus),
#main-nav > div:focus-within #main-nav-list:not(:focus-within)
{
	position: absolute !important;
	height: 1px;
	width: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
}

/* IE & EDGE Polyfill */
#main-nav:not(.is-scrolled-down) .call-to-action:not(:focus),
#main-nav.is-scrolled-down #main-nav-list:not([focus-within]),
#main-nav > div[focus-within] .call-to-action:not(:focus),
#main-nav > div[focus-within] #main-nav-list:not([focus-within])
{
	position: absolute !important;
	height: 1px;
	width: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
}