@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');


/* ------------- Общие стили ---------------- */
body {
	font-family: "Open Sans", sans-serif;
	font-weight: 400;
	font-size: 14px;
}

.container {
	max-width: 970px;
	padding: 0 15px;
	margin: 0 auto;
}

p {
	color: #6A859C;
	line-height: 1.8;
}
/* позволяет убирать отображение секций */
.hide {  
	display: none !important;
} 

.title-wrapper {
	margin-bottom: 60px;
}

.title {
	margin-bottom: 17px;

	font-size: 30px;
	line-height: 1.2;
	letter-spacing: 5px;
	text-transform: uppercase;
	color: #676770;
}

.subtitle {
	font-size: 17px;
	line-height: 1.2;
	letter-spacing: 3px;
	text-transform: uppercase;
	color: #8E8E9C;
}

.common-section {
	text-align: center;
	padding: 80px 0;
}

.common-section--dark {
	background-color: #192024;
}

.common-section--dark * {
	color: #fff;
}

.common-section--dark .subtitle {
	color: #e8e8e8;
}

/* ---------------- HEADER ------------------ */
.header {
	padding: 20px 0;
	width: 100%;

	position: fixed;
	top: 0;
	left: 0;
	z-index: 100;

	background-color: #fff;
	box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.1);
}

.header__container {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	font-size: 25px;
	letter-spacing: 4px;
	text-transform: uppercase;
	color: #69b9ff;
}
.header__nav ul{
	display: flex;
}

.header__nav li + li {
	margin-left: 40px;
}

.header__nav a {
	font-size: 16px;
	color: #676770;
	transition: color 0.2s;
}

.header__nav a:hover {
	color: #0082F3;
}

.header__nav a:active {
	color: #0057A2;
}

/* ------------------ MAIN ------------- */
.main {
}

/* ----------------- WELCOME -------------- */
.welcome {
	min-height: 600px;
	height: 100vh;
	padding: 195px 0;
	
	display: flex;
	justify-content: center;
	align-items: center;

	color: #fff;
	text-align: center;

	background-color: #282936;
	background: url("img/welcome.jpg");
	background-size: cover;
	background-position: center;
}

.welcome__heading {
	margin-bottom: 100px;

	font-size: 59px;
	line-height: 1;
	letter-spacing: 4px;
	text-transform: uppercase;
}
.welcome__links > * + *{
	margin-left: 20px;
}

.link-primary {
	display: inline-block;
	padding: 11px 30px;

	font-size: 16px;
	letter-spacing: 2px;
	text-transform: uppercase;

	border-radius: 4px;
	background: #69b9ff;

	transition: background-color 0.2s;
}
.link-primary:hover {
	background-color: #7cc2ff;
}
.link-primary:active {
	background-color: #0f8fff;
}

.link {
	display: inline-block;
	padding: 10px 30px;
	
	font-size: 16px;
	letter-spacing: 2px;
	text-transform: uppercase;

	border: 1px solid #fff;
	border-radius: 4px;
	transition: border-color 0.1s, background-color 0.1s;
}
.link:hover {
	background-color: rgba(255, 255, 255, 0.2);
	border-color: rgba(255, 255, 255, 0.5);
}
.link:active {
	background-color: rgba(0, 0, 0, 0.2);
}

/* ---------------- ABOUT (WHAT WE DO) -------------- */
.about .cards-wrapper {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 20px;
}

.about .card {
	padding: 35px 15px 20px;
	width: auto;
	max-width: 300px;
	border: 1px solid #DCEBF7;
	border-radius: 5px;
}

.about .card img {
	margin-bottom: 20px;

	width: 94px;
	height: 94px;
	object-fit: contain;
}

.about .card h4 {
	margin-bottom: 15px;

	font-size: 20px;
	line-height: 1.5;
	letter-spacing: 7px;
	text-transform: uppercase;
	color: #676770;
}


/* ---------------- ABOUT (WHAT WE DO) -------------- */

.services {
}

.services .cards-wrapper {
	display: flex;
	justify-content: space-between;
}

.services .card {
	width: 45%;
}

.services .card img {
	margin-bottom: 20px;
}

.services .card h4 {
	margin-bottom: 20px;
	font-size: 20px;
	line-height: 1.5;
	letter-spacing: 7px;
	text-transform: uppercase;
}

.services .link {
	margin-top: 15px;
}

/* --------------- TABS ------------ */
.tab-section {
}

.tabs {

}

.tabs__nav {
	margin-bottom: 50px;
}

.tabs__nav button {
	padding: 0 30px;

	font-size: 16px;
	letter-spacing: 2px;
	text-transform: uppercase;
	color: #fff;

	background-color: #92A0AD;
	border-radius: 4px;
}

.tabs__nav button.active {
	background-color: #2E80B6;
}

.tabs__nav button + button {
	margin-left: 15px;
}

.tabs__item {
	animation: fade 1s;
}

@keyframes fade {
	from {
		opacity: 0.3;
	}
	to {
		opacity: 1;
	}
}

.tabs__item img {
	margin-bottom: 15px;
}

.tabs__item h4 {
	margin-bottom: 15px;

	font-size: 31px;
	line-height: 1;
	color: #676770;
}

.tabs__desc {
	max-width: 720px;
	margin: 0 auto;
}

/* ------------ FOOTER -------------- */

.footer {

}

.footer__desc {
	padding: 35px 0;
}

.footer__desc h4 {
	margin-bottom: 25px;

	font-size: 18px;
	line-height: 1;
	letter-spacing: 4px;
	text-transform: uppercase;
	color: #676770;
}

.footer__desc a {
	font-size: 13px;
	color: #668CAD;
}

.footer__desc li {
	height: 30px;
	position: relative;
}

.footer__desc li::before {
	content: "";
	width: 100%;
	height: 1px;
	
	position: absolute;
	right: 0;
	bottom: 0;

	background-color: #D5D5E0;
}

.footer__desc li + li {
	margin-top: 6px;
}

.footer__desc-container {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	flex-wrap: wrap;
	gap: 20px 40px;
}

.footer__desc-container > * {
	width: 30%;
	min-width: 220px;
}

.footer__about {

}

.footer__links {

}

.footer__social img {
	width:  20px;
	height: 20px;
	object-fit: contain;
	margin-right: 10px;
}

.footer__social li::before {
	width: calc(100% - 34px);
}

.footer__copy {
	padding: 40px 0;
	text-align: center;
	background-color: #383838;
}

.footer__copy p {
	color: #9E9E9E;
}

@media (max-width: 829px) {
	.footer__desc-container {
		justify-content: space-between;
	}

	.footer__desc h4 {
		margin-bottom: 10px;
	}

	.footer__desc {
		padding-top: 0;
	}
}

@media (max-width: 660px) {
	.tabs__nav{
		margin-bottom: 30px;
	}

	.tabs__nav button {
		display: block;
		margin: 0 auto;
		padding: 10px 30px;
	}

	.tabs__nav button + button {
		margin-top: 10px;
		margin-left: auto;
	}
}

@media (max-width: 600px) {
	.services .cards-wrapper {
		flex-direction: column;
		align-items: center;
		gap: 40px;
	}

	.services .card {
		width: 80%;
	}

	.title-wrapper {
		margin-bottom: 40px;
	}
}

@media (max-width: 400px) {
	.header__nav li + li {
		margin-left: 15px;
	}

	.welcome__heading {
		font-size: 40px;
		margin-bottom: 50px;
	}

	.welcome__links a {
		display: block;
		width: 80%;
		margin-left: auto;
		margin-right: auto;
	}

	.welcome__links > * + * {
		margin: 0;
		margin-top: 20px;
	}

	body {
		font-size: 12px;
	}

	.about .card h4 {
		font-size: 16px;
	}

	.services .card h4 {
		font-size: 16px;
	}

	.services .card .link {
		font-size: 14px;
	}

	.tabs__item h4 {
		font-size: 24px;
	}
}