:root {
	--font-family: 'Poppins', Arial, Helvetica, sans-serif;
	--white-color: #fff;
	--light-gray-color: #646464;
	--main-color: #6cbadc;
	--main-color-darken: #46aedb;
	--second-color: #191f28;
	--second-color-alpha: #191f28a2;
	--header-height: 85px;
	--h1: clamp(2rem, 4vw, 3.5rem);
	--h2: clamp(1.75rem, 3.5vw, 3rem);
	--h3: clamp(1.5rem, 3vw, 2.5rem);
	--h4: clamp(1.25rem, 2.5vw, 2rem);
	--h5: clamp(1.125rem, 2vw, 1.5rem);
	--h6: clamp(1rem, 1.5vw, 1.25rem);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-weight: 400;
	font-family: var(--font-primary);
}

h1 {
	font-size: var(--h1);
}

h2 {
	font-size: var(--h2);
}

h3 {
	font-size: var(--h3);
}

h4 {
	font-size: var(--h4);
}

h5 {
	font-size: var(--h5);
}

h6 {
	font-size: var(--h6);
}

body {
	display: flex;
	flex-direction: column;
	font-family: var(--font-family);
	color: var(--light-gray-color);
	min-height: 100vh;
}

header {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: var(--header-height);
	position: sticky;
	top: 0;
	left: 0;
	background-color: var(--second-color);
	z-index: 5;
}

#home-page header{
	position: fixed;
	background-color: var(--second-color-alpha);
}

section {
	padding: 4em 0;
}

footer{
	margin-top: auto;
}

.footer-logo{
	min-height: 200px;
}

.footer-map{
	background-image: url('../media/page-cover.jpg');
	margin-bottom: -7px;
}

.sub-footer{
	padding: 0.5em 0;
	background-color: var(--main-color);
	color: var(--white-color);
}

.section {
	display: flex;
	flex-direction: column;
	gap: 4em;
}

a {
	text-decoration: none;
	color: inherit;
	transition: all 150ms ease-in;
}

nav a {
	color: var(--white-color);
}

nav a.active,
nav a:hover {
	color: var(--main-color);
}

.main-color {
	color: var(--main-color);
}

.main-color:hover {
	color: var(--white-color);
}

.logo {
	user-select: none;
	font-family: 'Montserrat';
	color: var(--main-color);
	font-weight: 800;
	font-size: 2em;
}

.logo span:first-child {
	color: var(--white-color);
}

.logo span:last-child {
	display: block;
	font-size: 14px;
	font-weight: 400;
	line-height: 6px;
	margin-left: 11px;
}

.container {
	width: 100%;
	padding: 0 20px;
	max-width: 1200px;
	margin: 0 auto;
}

.hero {
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	background-color: #343434;
	background-image: url('../media/programming.png');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	color: var(--white-color);
	min-height: 100vh;
}

.hero .container {
	z-index: 1;
}

.hero::after {
	content: '';
	display: block;
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background-color: var(--second-color-alpha);
	-webkit-backdrop-filter: blur(3px)  brightness(1.7);
	backdrop-filter: blur(3px) brightness(1.7);
}

.btn {
	padding: 12px 24px;
	background: var(--main-color);
	color: var(--white-color);
	border: none;
	cursor: pointer;
	border-radius: 30px;
	transition: 150ms ease-in;
}

.btn:hover{
	background-color: var(--main-color-darken);
}

.service-card {
	padding: 30px;
	text-align: center;
}

.service-card-image {
	width: 120px;
	height: 120px;
	opacity: 0.8;
}

.bg-second {
	background-color: var(--second-color);
	background-image: url('../media/bg-texture.png');
}

.vertical-timeline-items{
	max-width: 1140px;
	margin-left: auto;
	margin-right: auto;
	color: var(--white-color);
}

.vertical-timeline-item-descr{
	color: #A4A9B9;
	font-weight: 300;
}

.vertical-timeline-item-title h2{
	font-weight: 500;
	font-size: 48px;
	text-align: right;
}

.vertical-timeline-item-iterator {
	font-size: 200px;
	position: absolute;
	font-weight: 600;
}

.vertical-timeline-item:nth-child(2n){
	flex-direction: row-reverse;
}

.vertical-timeline-item:nth-child(2n) .vertical-timeline-item-descr{
	text-align: right;
}

.vertical-timeline-item:nth-child(2n) .vertical-timeline-item-title h2{
	text-align: left;
}

.vertical-timeline-item:nth-child(2n) .vertical-timeline-item-iterator{
	text-align: right;
}

.vertical-timeline-item:nth-child(1) .vertical-timeline-item-iterator{
	color: #6cbadc;
}

.vertical-timeline-item:nth-child(2) .vertical-timeline-item-iterator{
	color: #A0CE4E;
}

.vertical-timeline-item:nth-child(3) .vertical-timeline-item-iterator{
	color: #00BEA3;
}

.vertical-timeline-item:nth-child(4) .vertical-timeline-item-iterator{
	color: #F1894C;
}


.vertical-timeline-item > *{
	width: calc(100% / 3);
	z-index: 1;
}

.vertical-timeline-item-image{
	display: flex;
	justify-content: center;
}

.vertical-timeline-item-image > img{
	object-fit: cover;
	width: 270px;
	height: 270px;
	border-radius: 50%;
	overflow: hidden;
	border: 10px solid #FFFFFF1A;
}

.portfolio-card {
	overflow: hidden;
}

.portfolio-card img {
	display: block;
	width: 100%;
	transition: transform 2s ease-in-out;
	will-change: transform;
}

.portfolio-card:hover .portfolio-card-title{
	color: var(--main-color);
}

.portfolio-card-image{
	position: relative;
	aspect-ratio: 6 / 8;
	overflow: hidden;
	background-image: url('../media/page-cover.jpg');
}

.portfolio-card-image > img{
	max-height: unset;
}

.portfolio-card-title{
	margin-top: auto;
}

.page-card{
	background-image: url('../media/page-cover.jpg');
}

.page-card-content{
	min-height: 150px;
}

.progress-item > p{
	text-transform: uppercase;
}

.progress-item > h3{
	font-weight: 600;
	color: var(--main-color);
}

.progress-item > h3::after{
	content: '+';
}

.who-are-card-image{
	color: var(--color);
	font-size: 5em;
	border-radius: 50%;
}


.pre-header,
.languages {
	height: 40px;
	background-color: var(--light-blue);
	z-index: 9;
}

.list-languages {
	right: 0;
	top: 100%;
	background-color: var(--second-color);
	width: 100%;
	transition: all 50ms ease-in-out;
	z-index: 9;
}

.list-languages:not(:hover) {
	visibility: hidden;
	opacity: 0;
}

.list-languages a {
	width: 100%;
	display: inline-block;
	text-align: center;
	padding: 0.5em 0;
	color: var(--white-color);
}

.active-language {
	line-height: 40px;
	padding: 0 5px;
	color: var(--white-color);
}

.active-language:hover+ul.list-languages {
	visibility: visible;
	opacity: 1;
}

.languages a:hover::after {
	content: '';
	position: absolute;
	left: 0;
	top: 0;
	display: inline-block;
	width: 100%;
	height: 100%;
	background-color: #fff;
	opacity: 0.3;
}

@media(max-width: 920px) {

	:root{
		--header-height: 70px;
	}

	.drowdown-menu-sandwich {
		position: relative;
		align-items: stretch;
		display: flex;
		width: 40px;
		height: 40px;
		flex-direction: column;
		justify-content: space-around;
		order: 3;
	}

	.drowdown-menu-sandwich>span {
		display: block;
		width: 100%;
		height: 1px;
		background-color: #fff;
		flex: 1px 0 0;
		transition: all 250ms ease-in-out;
	}

	.fixed-header .drowdown-menu-sandwich>span {
		background-color: var(--text-color);
	}

	#dropdown-menu-toggle:checked~.drowdown-menu-sandwich>span:first-child {
		transform: rotate(-45deg) translateY(-50%);
		position: absolute;
		top: 50%;
	}

	#dropdown-menu-toggle:checked~.drowdown-menu-sandwich>span:nth-child(2) {
		visibility: hidden;
		opacity: 0;
	}

	#dropdown-menu-toggle:checked~.drowdown-menu-sandwich>span:last-child {
		transform: rotate(45deg) translateY(-50%);
		position: absolute;
		top: 50%;
	}

	.logo{
		font-size: 1.5em;
	}

	.grid-3{
		grid-template-columns: repeat(2, 1fr);
	}

	.grid-4{
		grid-template-columns: repeat(3, 1fr);
	}

	nav.menu{
		position: absolute;
		left: 0;
		background: var(--second-color);
		width: 100%;
		flex-direction: column;
		top: var(--header-height);
		border-top: 1px solid var(--main-color);
		gap: 0 !important;
		padding: 1em;
		visibility: hidden;
		opacity: 0;
		transition: all 150ms ease;
	}

	#dropdown-menu-toggle:checked ~ nav.menu {
		visibility: visible;
		opacity: 1;
	}

	#dropdown-menu-toggle:checked + nav.menu {
		visibility: visible;
		opacity: 1;
	}

	nav.menu > a{
		padding: 0.5em 0;
	}

	.flex-columns{
		flex-direction: column !important;
	}

	.vertical-timeline-item{
		max-width: 450px;
		width: 100%;
		gap: 2em;
	}

	.vertical-timeline-item > *{
		width: calc(100% - 1em);
	}

	.vertical-timeline-item:nth-child(odd) .vertical-timeline-item-iterator{
		left: 0;
	}

	.vertical-timeline-item:nth-child(even) .vertical-timeline-item-iterator{
		right: 0;
	}

	.vertical-timeline-item-iterator{
		font-size: 90px;
		line-height: 1;
	}

	.vertical-timeline-item-descr{
		text-align: center !important;
	}
}

@media(max-width: 720px){

	section{
		padding: 2em 0;
	}

	.grid-4{
		grid-template-columns: repeat(2, 1fr);
	}

	.service-card{
		padding: 1em;
	}

	.footer-logo{
		min-height: auto;
		padding: 1em 0;
	}
}

@media(max-width: 480px){

	.gap-2{
		gap: 1em;
	}

	.header > *:last-child{
		display: none;
	}

	*{
		line-height: 1.1em;
	}

	.service-card-descr{
		text-align: justify;
	}
}