:root {
	 --bgc: #F7F8FA;
	--tc-1: #111;
	--tc-3: #333;
	--tc-5: #555;
	--link: #0077EC;
}

body {
 	margin: 0;
	background-color: var(--bgc);
	font-family: "SF Pro Text","Helvetica Neue","Helvetica","Arial",sans-serif;
	color: var(--tc-1);
}

h1 {
	font-family: "SF Pro Display","Helvetica Neue","Helvetica","Arial",sans-serif;
	margin: 0;
}

h3 {
	font-family: "SF Pro Display","Helvetica Neue","Helvetica","Arial",sans-serif;
	margin: 0;
}

a {
	color: var(--tc-3);
	font-weight: bold;
	text-decoration: none;
}

a:hover {
	color: var(--link);
	text-decoration: underline;
}

.section-title {
	margin-top: 72px;
	font-size: 48px;
	font-weight: bold;
	margin-bottom: 4px;
}

.section--subtitle {
	font-size: 24px;
	font-weight: regular;
}

.section {
	max-width: 960px;
	margin: 0 auto;
	padding: 0 24px;
}

.section-wide {
	width: 100%;
}

.above-the-fold {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin: 10vh 0 16px 0;
}

#section-socials {
	display: inline-block;
	padding: 0;
}

#section-socials ul {
	text-align: left;
	margin-left: 0;
	padding: 0;
	display: grid;
	grid-column-gap: 24px;
	grid-template-columns: repeat(4, 1fr);
	font-size: 24px;
}

#section-socials ul li {
	list-style-type: none;
	display: inline;
}

#section-socials a {
	color: var(--tc-3);
}

#section-socials svg {
	transition: .2s ease;
}

#section-socials a svg:hover {
	transform: translateY(-1px);
}

#section-socials .link-twitter:hover {
	color: #1DA1F2;
}

#section-socials .link-github:hover {
	color: #8806CE;
}

#section-socials .link-medium:hover {
	color: #00AB6B;
}

#section-socials .link-dribbble:hover {
	color: #ea4c89;
}


#hero-title {
	font-weight: bold;
	font-size: 80px;
	line-height: 80px;
}

#hero-subtitle {
	font-weight: 500;
	font-size: 24px;
	margin-left: 1px; /* optically left align to title*/
}

.right-fold {
	display: flex;
	position: relative;
}

.right-fold img {
	width: 400px;
	height: 400px;
	box-shadow: 0 2px 32px rgba(0,0,0,.1);
	border-radius: 4px;
}

.right-fold .attribution {
	position: absolute;
	width: 100%;
	text-align: center;
	font-style: italic;
	font-size: 14px;
	padding: 8px 16px;
	bottom: -40px;
}

.attribution a:hover {
	color: #1FC3A5;
}

.history-section {
	margin-top: 20vh;
}

@media (max-width: 840px) {
	#hero-title {
		font-size: 56px;
		line-height: 1;
	}
	
	#hero-subtitle {
		font-size: 20px;
	}
	
	#section-hero {
		padding: 0 24px;
	}
}

@media (max-width: 740px) {
	.above-the-fold {
		flex-direction: column-reverse;
		align-items: flex-start;
		margin-top: 24px;
	}
	
	.right-fold img {
		width: 100%;
		height: 100%;
		max-width: 380px;
	}
	
	.history-section {
		margin-top: 48px;
	}
}

.history-title {
	font-weight: bold;
	text-transform: uppercase;
	letter-spacing: 1px;
}

.history-text {
	font-size: 20px;
	line-height: 1.5;
	color: var(--tc-3);
	max-width: 760px;
}

.science-section-container {
	height: 800px;
	margin: 120px 0;
}

.science-section {
	text-align: center;
	position: sticky;
	position: -webkit-sticky;
	top: 30%;
}

.science-text {
	font-family: "SF Pro Display","Helvetica Neue","Helvetica","Arial",sans-serif;
}


.science-text-secondary {
	font-size: 24px;
	color: var(--tc-3);
	display: inline-block;
	transition: .15s linear;
}

.science-title {
	font-size: 80px;
	font-weight: bold;
}

.science-text-scientific {
	display: inline;
	color: transparent;
	background: url(imgs/science-texture.jpg);
	background-clip: text;
	-webkit-background-clip: text;
	background-position: 0% 0%;
}

.science-text-second-read {
	display: inline;
}

.science-text-method {
	display: inline;
	position: relative;
}

.science-text-design-process {
	color: var(--tc-3);
	font-size: 24px;
	position: absolute;
	top: 100%;
	left: 4px;
	font-weight: 400;
	transform: translateX(200px);
	opacity: .1;
	transition: .15s linear;
}

@media (max-width: 1024px) {
	.science-title {
		font-size: 56px;
	}
	
	.science-text-secondary {
		font-size: 16px;
	}
	
	.science-text-design-process {
		font-size: 16px;
	}
}

@media (max-width: 520px) {
	.science-title {
		font-size: 42px;
	}
	
	.science-text-secondary {
		font-size: 14px;
	}
	
	.science-text-design-process {
		font-size: 14px;
	}
}

.method-step {
	position: relative;
	margin: 0 auto;
}

.method-image {
	width: 180px;
	height: 180px;
	background-color: antiquewhite;
	position: relative;
	font-weight: bold;
	font-style: italic;
	font-size: 18px;
	letter-spacing: .5px;
	color: white;
	box-shadow: 0 2px 24px rgba(0,0,0,.15);
	z-index: 1;
}

.method-image img {
	width: 100%;
	height: 100%;
}

.method-number {
	position: absolute;
	right: 14px;
	bottom: 9px;
}

.method-card {
	position: relative;
	left: 120px;
	top: -58px;
	background-color: white;
	box-shadow: 0 2px 32px rgba(0,0,0,.1);
	padding: 24px 32px;
	z-index: 0;
}

#method-card-1 {
	max-width: 425px;
}

#method-card-2 {
	max-width: 594px;
}

#method2 {
	margin-left: 20%;
}

#method-card-3 {
	max-width: 520px;
}

#method3 {
	margin-left: 10%;
}

#method-card-4 {
	max-width: 590px;
}

.method-card-title {
	font-size: 24px;
	font-weight: bold;
	margin-bottom: 16px;
	margin-left: 42px;
}

.method-card-description {
	font-size: 16px;
	line-height: 1.5;
	color: var(--tc-5);
	letter-spacing: .3px;
}

@media (max-width: 1024px) {
	#method2 {
		margin-left: 0;
	}
	
	#method3 {
		margin-left: 0;
	}
	
	.method-card {
		max-width: 240px;
		width: calc(100% - 120px - 24px - 24px - 24px) !important;
	}
}

@media (max-width: 520px) {
	.method-card {
		left: 24px;
		top: -12px;
		width: auto !important;
		max-width: calc(100% - 56px - 24px) !important;
		margin-bottom: 48px;
	}
	
	.method-card-title {
		margin-top: 4px;
		margin-left: 0;
		margin-bottom: 8px;
	}
}



.projects-grid {
	margin-top: 56px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	grid-column-gap: 48px;
	grid-row-gap: 56px;
	margin-bottom: 72px;
}

@media (max-width: 960px) {
	.projects-grid {
		grid-template-columns: minmax(350px, 600px)
	}
}

.card {
	display: grid;
	grid-template-columns: 90px 1fr;
	grid-column-gap: 24px;
	
}

.card img {
	width: 90px;
	height: 90px;
	border-radius: 20px;
	background-color: white;
}

.card-title {
	font-size: 24px;
	margin-bottom: 8px;
}

.card-subtitle {
	font-size: 15px;
	color: var(--tc-3);
	margin-bottom: 16px;
	line-height: 1.5;
}

.card-link {
	color: var(--link);
	text-decoration: none;
	font-weight: bold;
	font-size: 16px;
}

.card-link .fa-angle-right {
	margin-left: 4px;
	transform: translate(-1px, .5px);
	transition: .2s ease;
}

.link-hovered .fa-angle-right {
	transform: translate(1px, .5px);
}

#section-gradescope {
	background-color: #1B6E67;
	background-image: linear-gradient(135deg, #1CA0A0 0%, #1B6E67 100%);
	margin-top: 72px;
	padding: 1px 0 72px;
}

#gradescope-title {
	text-align: center;
	font-size: 80px;
	line-height: 80px;
	color: white;
}

#gradescope-subtitle {
	font-size: 18px;
	line-height: 1.5;
	max-width: 760px;
	text-align: center;
	margin: 0 auto;
	color: white;
	font-weight: 300;
	margin-top: 16px;
}

@media (max-width: 1024px) {
	#gradescope-title {
		font-size: 56px;
		line-height: 1.2;
	}
	
	#gradescope-subtitle {
		font-size: 16px;
		padding: 0 24px;
	}

}

.gradescope-carousel {
	position: relative;
	padding-top: 64px;
	display: inline-block;
	width: 100%;
	overflow-x: hidden;
}

.gradescope-carousel-img-width {
	width: 60%;
}

.gradescope-carousel-img {
	height: auto;
	border-radius: 4px;
	background-color: white;
	position: absolute;
	margin: 0 auto;
	left: 0;
	right: 0;
	box-shadow: 0 4px 8px 0 rgba(0,0,0,0.20);
	transition: .3s ease;
	cursor: pointer;
}

#carousel-img-placeholder {
	margin-bottom: 48px;
	opacity: 0;
}

.gradescope-carousel-description {
	height: 140px;
	width: 100%;
	display: flex;
	justify-content: center;
}

.carousel-description-container {
	position: absolute;
	text-align: center;
	max-width: 700px;
	margin: 0 auto;
}

.carousel-description-title {
	font-size: 24px;
	font-weight: bold;
	color: white;
	margin-bottom: 8px;
	transition: .3s ease;
}

.carousel-description-caption {
	font-size: 14px;
	color: white;
	transition: .4s ease;
	line-height: 1.5;
	font-weight: 300;
	letter-spacing: 0.3px;
}

@media (max-width: 720px) {
	.gradescope-carousel-description {
		height: 160px;
	}
	.carousel-description-container {
		padding: 0 24px;
	}
	.carousel-description-caption {
		font-size: 13px;
	}
}

#section-resources-container {
	background-image:
		url(imgs/science-texture-large.jpg);
	height: 100%;
	background-size: 100% 100%;
}

#section-resources {
	padding-top: 72px;
	padding-bottom: 72px;
}

#resources-title {
	color: white;
}

#resources-subtitle {
	color: white;
}

#resources-grid {
	margin-top: 48px;
	color: white;
}

.resources-column {
	display: grid;
	grid-template-columns: repeat(14, 1fr);
	grid-template-rows: auto 24px repeat(3, 1fr 32px);
	margin-bottom: 96px;
}

#craft-resource-title {
	grid-column-start: 1;
	grid-column-end: auto;
}

#craft-resource-1 {
	grid-column-start: 1;
	grid-column-end: 6;
	grid-row-start: 3;
	grid-row-end: 3;
}

#craft-resource-2 {
	grid-column-start: 2;
	grid-column-end: 7;
	grid-row-start: 5;
	grid-row-end: 5;
}

#craft-resource-3 {
	grid-column-start: 3;
	grid-column-end: 8;
	grid-row-start: 7;
	grid-row-end: 7;
}

#process-resource-title {
	grid-column-start: 5;
	grid-column-end: auto;
}

#process-resource-1 {
	grid-column-start: 5;
	grid-column-end: 10;
	grid-row-start: 3;
	grid-row-end: 3;
}

#process-resource-2 {
	grid-column-start: 6;
	grid-column-end: 11;
	grid-row-start: 5;
	grid-row-end: 5;
}

#process-resource-3 {
	grid-column-start: 7;
	grid-column-end: 12;
	grid-row-start: 7;
	grid-row-end: 7;
}

#community-resource-title {
	grid-column-start: 9;
	grid-column-end: auto;
}

#community-resource-1 {
	grid-column-start: 9;
	grid-column-end: 14;
	grid-row-start: 3;
	grid-row-end: 3;
}

#community-resource-2 {
	grid-column-start: 8;
	grid-column-end: 13;
	grid-row-start: 5;
	grid-row-end: 5;
}

#community-resource-3 {
	grid-column-start: 7;
	grid-column-end: 12;
	grid-row-start: 7;
	grid-row-end: 7;
}

.resources-column-title {
	font-size: 14px;
	letter-spacing: .5px;
	font-weight: bold;
	text-transform: uppercase;
	grid-row-start: 1;
	grid-row-end: 1;
}


.resource-title {
	font-size: 20px;
	font-weight: bold;
	margin-bottom: 12px;
}

.resource-description {
	font-size: 14px;
	color: white;
	margin-bottom: 16px;
	line-height: 1.5;
}

.resource-description a {
	color: white;
	font-style: italic;
}

.resource-button {
	color: white;
	font-size: 14px;
	padding: 8px 16px;
	background-color: rgba(255, 189, 138, .3);
	font-weight: 400;
	border-radius: 4px;
	transition: .2s ease;
	text-decoration: none;
	display: inline-block;
}

.resource-button:hover {
	color: white;
	background-color: rgba(255, 189, 138, .5);
	text-decoration: none;
	transform: translateY(-1px);
}

@media (max-width: 860px) {
	#craft-resource-1 {
		grid-column-end: 8;
	}
	
	#craft-resource-2 {
		grid-column-end: 9;
	}
	
	#craft-resource-3 {
		grid-column-end: 10;
	}
	
	#process-resource-1 {
		grid-column-end: 12;
	}
	
	#process-resource-2 {
		grid-column-end: 13;
	}
	
	#process-resource-3 {
		grid-column-end: 14;
	}
	
	#community-resource-title {
		grid-column-start: 7;
	}
	
	#community-resource-1 {
		grid-column-start: 7;
	}
	
	#community-resource-2 {
		grid-column-start: 6;
	}
	
	#community-resource-3 {
		grid-column-start: 5;
	}
}

@media (max-width: 640px) {
	#craft-resource-1 {
		grid-column-end: 14;
	}
	
	#craft-resource-2 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#craft-resource-3 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#process-resource-title {
		grid-column-start: 1;
	}
	
	#process-resource-1 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#process-resource-2 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#process-resource-3 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#community-resource-title {
		grid-column-start: 1;
	}
	
	#community-resource-1 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#community-resource-2 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
	
	#community-resource-3 {
		grid-column-start: 1;
		grid-column-end: 14;
	}
}