/* YUI 3.4.1 (build 4118) Copyright 2011 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0}
table{border-collapse:collapse;border-spacing:0}
fieldset,img{border:0}
address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal}
ol,ul{list-style:none}
caption,th{text-align:left}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal}
q:before,q:after{content:''}
abbr,acronym{border:0;font-variant:normal}
sup{vertical-align:text-top}
sub{vertical-align:text-bottom}
input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit}
input,textarea,select{font-size:100%}
legend{color:#000}

/* --------------------------- */

:root {
  --white-color: #ffffff;
  --light-color: #e4ecf2;
  --light-gradient: linear-gradient(to bottom, #f0f8ff, #e4ecf2);
  --dark-gradient: linear-gradient(to bottom, #071d2e, #133047);
  --comment-color: #667480;
  --dark-color: #3d464d;
  --dark-accent-color: #133047;
  --accent-color: #ff571a;
  --default-border: 1px solid rgba(0,0,0,0.2);
  --default-shadow: 0 0.125rem 0.375rem 0 rgba(0,0,0,0.1);
}

/* --------------------------- */

html {
    min-height: 100vh;
}

body {
	font-family: "Fira Sans", sans-serif;
	font-optical-sizing: auto;
	font-weight: 400;
	font-style: normal;
	font-variation-settings: "GRAD" 0;
	min-height: 100vh;
    color: var(--dark-color);
	background: var(--white-color);
}

div.code {
	font-family: "Source Code Pro", monospace;
	color: var(--white-color);
	background: rgba(0, 0, 0, 0.5);
	padding: 1rem;
	white-space: pre;
	overflow-x: auto;
}

h1 {
	font-size: 3rem;
	line-height: 3.6rem;
	font-family: "Monda", sans-serif;
	font-weight: 700;
}

h1 span {
	white-space: nowrap;
}

h2 {
	font-size: 2.4rem;
	line-height: 3rem;
	text-align: center;
	color: var(--accent-color);
	font-family: "Monda", sans-serif;
	font-weight: 700;
	margin-bottom: 1.5rem;
}

h3 {
	font-size: 1.5rem;
	font-weight: bold;
	font-family: "Monda", sans-serif;
	font-weight: 700;
	text-transform: uppercase;
}

h4 {
	font-size: 1.2rem;
	font-weight: bold;
}

h5 {
	font-weight: bold;
	text-transform: uppercase;
}

p, li {	
	line-height: 130%;
}

img {
	vertical-align: top;
}

a {
	color: var(--accent-color);
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

strong {
	font-weight: bold;
}

.content {
	max-width: 88rem;
	margin: 0 auto;
	box-sizing: border-box;
	padding: 0 4rem;
}

.light-area {
	background: var(--light-color);
}

.light-area.gradient {
	background: var(--light-gradient);
}

.button {
	color: var(--accent-color);
	border: 4px solid var(--accent-color);
	background: transparent;
	display: inline-block;
	padding: 0.5rem 1.25rem;
	border-radius: 2rem;
	line-height: 1.5rem;
	font-size: 1rem;
	text-decoration: none;
	font-family: "Monda", sans-serif;
	font-weight: 700;
	text-transform: uppercase;
}

.button:hover {
	color: var(--accent-color);
	background: var(--white-color);
	text-shadow: none;
}

/* --------------------------- */

header {
	height: 5rem;
	box-sizing: border-box;
	padding: 1rem 0;
}

header.show {
  top: 0;
}

header nav {
	display: flex;
	gap: 1rem;
	text-transform: uppercase;
}

header > .content {
	display: flex;
	gap: 1rem;
	justify-content: space-between;
	align-items: center;
}

#header {
	z-index: 2;
	position: fixed;
	top: -5rem; 
	left: 0;
	right: 0;
	transition: top 0.3s ease;
	z-index: 1000;
	background: var(--white-color);
}

#header.show {
	top: 0; 
	box-shadow: 0 0 0.5rem rgba(0,0,0,0.25);
}

.image img {
	display: block;
	width: 100%;
	margin: 0 auto;
	max-width: 10rem;
}

.logo {
	height: 3rem;
}

.logo > * {
	display: block;
	height: 100%;
}

#logo-title {
	color: var(--accent-color)
}

#logo-title img {
	display: inline-block;
	height: 4.2rem;
}

.top-area-container {
	overflow: hidden;
	background: var(--dark-gradient);
	background-size: auto;
	color: var(--white-color)
}

.top-area {
	display: flex;
	align-items: end;
	height: 100%;
	gap: 1rem;
	min-height: 28rem;
}

.top-text {
	padding-bottom: 4rem;
	flex: 0 0 50%;
	position: relative;
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
	z-index: 2;
	text-shadow: 0 0.0625rem 0.125rem rgba(0,0,0,0.25)
}

.top-text p {
	font-size: 1.3rem;
	line-height: 2rem;
}

.top-image {
	flex: 1;
	box-sizing: border-box;
}

.top-image img {
	display: block;
	width: 100%;
	margin: -1rem auto 1rem auto;
	max-width: 32rem;
	animation: cat-fly 9s linear infinite;
	transform-origin: center center;
}

main {
	padding: 0;
}

main > section > .content {
	padding-top: 2rem;
	padding-bottom: 2rem;
}

.concept-points {
	display: grid;
	grid-template-columns: 1fr 1fr 1fr;
	gap: 2rem;
}

.concept-points div {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.concept-points h3 {
	text-align: center;
	color: var(--accent-color);
}

.concept-points p {
	font-size: 0.9rem;
	color: var(--comment-color);
}

.cards-container {
	display: grid;
	grid-template-columns: 1fr 1fr 1fr 1fr;
	gap: 2rem;
}

.card {
	border: var(--default-border);
	border-radius: 0.5rem;
	overflow: hidden;
	background-color: var(--white-color);
}

.card h4 {
	text-align: center;
	margin: 1rem 1rem 0.5rem 1rem;
}

.card p {
	margin: 0 1rem 0.5rem 1rem;
	font-size: 0.9rem;
	color: var(--comment-color);
}

.text-document > * {
	margin-bottom: 1rem;
}

.text-document > *:last-child {
	margin-bottom: 0;
}

.highlights > * {
	padding: 1rem 0;
	border-bottom: 1px dashed;
}

.highlights > *:first-child {
	padding-top: 0;
}

.highlights > *:last-child {
	padding-bottom: 0;
	border-bottom: none;
}

.highlights p {
	font-size: 0.9rem;
	margin: 1rem 0 0 1rem;
}

.features-list {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	list-style: decimal-leading-zero inside;
}

div.highlights-container {
	display: flex;
	gap: 2rem;
	align-items: center;
}

div.highlights-container > div:first-child {
	flex-grow: 1;
}

div.highlights-container > div:last-child {
	max-width: 20rem;
	min-width: 20rem;
}

div.highlights-container > div:last-child img {
	width: 100%;
}

section#getting-started {
	color: var(--white-color);
	background: var(--dark-accent-color);
}

footer {
	padding: 2rem 0;
	text-align: center;
    background: var(--dark-color);
	color: var(--white-color);
}

footer a {
	color: inherit;
}

/* --------------------------- */


@media only screen and (min-width: 1680px) {
		
}
	
@media only screen and (max-width: 1280px) {
	
	.content {
		padding-left: 3rem;
		padding-right: 3rem;
	}

	.cards-container {
		grid-template-columns: 1fr 1fr 1fr;
	}
}


@media only screen and (max-width: 960px) {

	.content {
		padding-left: 2rem;
		padding-right: 2rem;
	}

	.cards-container {
		grid-template-columns: 1fr 1fr;
	}

	div.highlights-container > div:last-child {
		max-width: 16rem;
		min-width: 16rem;
	}

	.top-area {
		min-height: 24rem;
	}

	.top-text {
		padding-bottom: 2rem;
	}
}

@media only screen and (max-width: 800px) {

	h2 {
		margin-bottom: 1rem;
	}

	.content {
		padding-left: 1rem;
		padding-right: 1rem;
	}

	main > section > .content {
		padding-top: 1rem;
		padding-bottom: 1rem;
	}

	div.highlights-container {
		align-items: normal;
	}

	div.highlights-container > div:last-child {
		max-width: 12rem;
		min-width: 12rem;
	}

	.concept-points {
		grid-template-columns: 1fr;
		gap: 1rem;
		max-width: 24rem;
		margin: 0 auto;
	}

	.top-area {
		flex-direction: column;
		align-items: center;
	}

	.top-text {
		flex: none;
	}

	.top-image {
		margin: 0;
	}

	.top-image img {
		max-width: 28rem;
	}
}

@media only screen and (max-width: 640px) {

	.cards-container {
		grid-template-columns: 1fr;
		gap: 1rem;
	}

	div.highlights-container {
		flex-direction: column-reverse;
		gap: 0.5rem;
	}

	div.highlights-container > div:last-child {
		max-width: 100%;
		min-width: 0;
		text-align: center;
	}

	div.highlights-container > div:last-child > img {
		max-width: 24rem;
	}

}

@keyframes cat-fly {
	0%   { transform: translateY(0px)   translateX(0px)   rotate(-2deg); }
	8%   { transform: translateY(-6px)  translateX(1px)   rotate(-1.4deg); }
	19%  { transform: translateY(-13px) translateX(3px)   rotate(-0.6deg); }
	27%  { transform: translateY(-8px)  translateX(2px)   rotate(-1.9deg); }
	36%  { transform: translateY(-15px) translateX(-1px)  rotate(-0.8deg); }
	44%  { transform: translateY(-4px)  translateX(-3px)  rotate(-2.4deg); }
	53%  { transform: translateY(-11px) translateX(-2px)  rotate(-1.1deg); }
	61%  { transform: translateY(-2px)  translateX(1px)   rotate(-2.3deg); }
	71%  { transform: translateY(-13px) translateX(3px)   rotate(-0.5deg); }
	80%  { transform: translateY(-5px)  translateX(-1px)  rotate(-1.8deg); }
	89%  { transform: translateY(-10px) translateX(-2px)  rotate(-0.9deg); }
	100% { transform: translateY(0px)   translateX(0px)   rotate(-2deg); }
}