:root {
	--standard-animation-duration: 500ms;
	--standard-body-color: #bbbbbb;
	--standard-font-size: 20px;
	--standard-link-color: #7cf7ff;
	--standard-transition-duration: 100ms;
	--standard-margin-bottom: 2em;
	--standard-padding: 2em;
	--font-size-large: calc(1.25 * var(--standard-font-size));
}

html * {
	box-sizing: border-box;
}

html, body {
	font-family: arial, helvetica, sans-serif;
	min-height: 100vh;
}

img, video {
	max-width: 100%;
}

body {
	color: var(--standard-body-color);
	background: url(../img/hero-small.jpg) black;
	background-attachment: fixed;
	background-position: 50% 0%;
	background-size: contain;
	background-repeat: no-repeat;
	font-size: var(--standard-font-size);
	margin: 0;
}

@media all and (min-width: 1024px) {
	.large-text {
		font-size: var(--font-size-large);
	}
}

video {
	cursor: pointer;
}

@media all and (min-width: 1024px) {
	body 	{
		background-image: url(../img/hero.jpg) black;
	}
}

h1, h2, h3 {
	font-family: 'Roboto Slab', serif;
	margin: 0;
}

h1 {
	line-height: var(--font-size-large);
	text-align: center;
}

.scrolled h1 {
	font-size: 100%;
}

@media all and (min-width: 640px) {
	h1 {
		text-align: left;
	}
}

h2 {
	margin-bottom: var(--standard-margin-bottom);
	position: relative;
	text-align: center;
}

h3 {
	margin-bottom: var(--standard-margin-bottom);
	text-align: center;
}

h2::before {
	left: -4em;
}

h2::after {
	left: 1em;
}

.form-row {
	padding-bottom: var(--standard-padding);
}

button {
	background: var(--standard-link-color);
	border: 0;
	display: block;
	margin: 0 auto;
	padding: calc(0.5 * var(--standard-padding)) var(--standard-padding);
	transition: all var(--standard-transition-duration);
}

button:hover {
	background: white;
}

label {
	display: block;
}

input, textarea {
	width: 100%;
}

textarea {
	height: 6em;
}

@media all and (min-width: 1024px) {
	h2 {
		padding-top: 3em;
	}
}

p {
	line-height: 150%;
	margin-bottom: var(--standard-margin-bottom);
}

a {
	color: var(--standard-link-color);
	text-decoration: none;
	transition: all var(--standard-transition-duration);
}

.download {
	display: block;
	text-decoration: underline;
}

.no-touchevents a:hover, .active {
	color: #ffffff;
}

header {
	position: fixed;
	top: 0;
	transition: all 100ms;
	width: 100%;
	z-index: 1;
}

@media all and (max-width: 640px) {
	header nav {
		display: none;
	}
}

@media all and (min-width: 640px) {
	header {
		padding-top: 1em;
	}

	header .constrain {
		display: flex;
		justify-content: space-between;
	}

	header nav {
		max-width: 400px;
		width: 60%;
	}
}

nav ul {
	display: flex;
	width: 100%;
}

nav li {
	justify-content: space-between;
	text-align: center;
}

@media all and (min-width: 640px) {
	nav li {
		text-align: center;
	}
}

.scrolled header {
	background: rgba(0, 0, 0, 0.85);
	padding-bottom: 0.5em;
	padding-top: 0.5em;
}

main {
	padding-top: 5em;
}

@media all and (min-width: 1024px) {
	main, header {
		padding-bottom: 1em;
	}

	main {
		padding-top: 6em;
	}
}

.constrain, .constrain-narrow {
	margin-left: auto;
	margin-right: auto;
	padding-left: 1em;
	padding-right: 1em;
}

@media all and (min-width: 1024px) {
	.constrain {
		padding-left: var(--standard-padding);
		padding-right: var(--standard-padding);
	}
}

.constrain {
	max-width: 1440px;
}

.constrain-narrow {
	max-width: 1024px;
}

@media all and (max-width: 640px) {
	.hide-small {
		display: none;
	}
}

nav ul, nav li {
	list-style: none;
	margin: 0;
	padding: 0;
}

nav {
	display: flex;
	justify-content: space-between;
}

nav li {
	display: inline-block;
	flex: 1;
}

@keyframes nav-hover {
	0% {
		left: 50%;
		width: 0;
	}
	100% {
		left: 0;
		width: 100%;
	}
}

@keyframes nav-hover-out {
	0% {
		left: 0;
		width: 100%;
	}
	100% {
		left: 50%;
		width: 0;
	}
}

nav a {
	position: relative;
}

h1 a {
	color: white;
}

nav a::after {
	animation-name: nav-hover-out;
	animation-duration: var(--standard-animation-duration);
	border-bottom: 1px solid white;
	content: " ";
	left: 50%;
	opacity: 0;
	position: absolute;
	top: 100%;
	transition: opacity 500ms;
	width: 0;
}

.no-touchevents nav a:hover::after {
	animation-fill-mode: both;
	animation-duration: 1000ms;
	animation-name: nav-hover;
	animation-iteration-count: 1;
	opacity: 1;
}

.center {
	text-align: center;
}

.hidden {
	display: none;
}

.work-sample {
	margin-bottom: 4em;
}

.work-sample section a::after {
	content: "\2192";
	position: relative;
	animation-duration: 500ms;
}

@keyframes arrow-slide {
	0% {
		animation-timing-function: ease-in;
		left: 0;
	}
	50% {
		left: 10px;
	}
	100% {
		animation-timing-function: ease-out;
		left: 0;
	}
}

.no-touchevents .work-sample a:hover::after {
	animation-name: arrow-slide;
	animation-iteration-count: infinite;
	color: white;
}

@media all and (max-width: 1023px) {
	.work-sample.img-right {
		display: flex;
		flex-wrap: wrap-reverse;
		flex: 0 0 100%;
		width: 100%;
	}

	h3 {
		text-align: center;
	}
}

@media all and (min-width: 1024px) {
	.flex-container {
		display: flex;
		justify-content: space-between;
		margin-bottom: 6em;
	}

	.work-sample:nth-child(odd) .flex-container {
		flex-direction: row-reverse;
	}

	.work-sample p:first-child {
		margin-top: 0;
	}

	.work-sample .img {
		width: 60%;
	}

	.work-sample .img img, .work-sample .img video {
		transition: all 200ms;
	}

	.no-touchevents .img img {
		opacity: 0.7;
	}

	.no-touchevents .img img:hover {
		opacity: 1;
		transform: scale(1.2);
	}

	section {
		width: 35%;
	}
}

footer {
	padding-bottom: var(--standard-padding);
	padding-top: var(--standard-padding);
	text-align: center;
}

.video-container {
	max-width: 100%;
}