html, body, h1, h2, h3, p {
	margin: 0;
	padding: 0;
}
body {
	font-family: 'Roboto', sans-serif;
	font-size: 20px;
}
.container {
	max-width: 480px;
	margin: 0 auto;
	overflow: hidden;
	padding-left: 10px;
	padding-right: 10px;
	box-sizing: border-box;
}
/* ------------------ ADVANTAGES ------------------ */

.header {
	position: relative;
	text-align: center;
	background-image: url(img/header-bg.jpg);
	background-position: top center;
	-webkit-background-size: cover;
	background-size: cover;
	background-repeat: no-repeat;
	min-height: 85vh;
	color: #fff;
}
.header__nav {
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	padding-top: 10px;
	margin-bottom: 150px;
}
.header__logo {
	height: 50px;
	width: 200px;
}
.header__title-block {
	margin-top: 20vh;
}
.header__title {
	text-transform: uppercase;
}
.header__suptitle {
	margin-bottom: 20px;
}
.header__title {
	font-size: 32px;
}
.header__heart {
	width: 420px;
	margin-top: 0px;
	padding-bottom: 200px;
}
.header__callback {
	margin-left: auto;
}
.header__callback a {
	display: block;
	text-align: right;
	color: #fff;
	text-decoration: none;
	margin-bottom: 8px;
	font-size: 20px;
}
.header__question {
	position: absolute;
	bottom: 50px;
	margin-left: 40px;
	width: 380px;
}
.header__question-title {
	margin-bottom: 20px;
	font-size: 20px;
	color: red;
}
.header__feed {
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	justify-content: space-around;
}
.header__feed a {
	font-size: 0;
	cursor: pointer;
}
.header__feed img {
	height: 75px;
	width: 75px;
}
/* ------------------ ADVANTAGES ------------------ */

.advantages {
	padding-top: 50px;
	padding-bottom: 50px;
}
.advantages__title, .advantages__subtitle {
	text-align: center;
}
.advantages__title {
	font-size: 32px;
	position: relative;
	margin-bottom: 20px;
}
.advantages__title::after, .advantages__title::before {
	content: '';
	position: absolute;
	width: 100px;
	height: 1px;
	background-color: rgba(49, 191, 195, .8);
	z-index: 9;
}
.advantages__title::after {
	bottom: -10px;
	left: 150px;
}
.advantages__title::before {
	bottom: -15px;
	left: 200px;
}
.advantages__subtitle {
	margin-bottom: 50px;
}
.advantages__list {
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	flex-shrink: 0;
	flex-wrap: wrap;
	justify-content: space-around;
}
.section__features-item {
	position: relative;
	width: 460px;
	height: 300px;
	margin-bottom: 20px;
	margin-right: 5px;
	margin-left: 5px;
	overflow: hidden;
}
.advantages__feature-image {
	width: 100%;
	height: 100%;
	border: 1px solid rgba(49, 191, 195, .8);
	box-sizing: border-box;
}
.advantages__description {
	position: absolute;
	width: 460px;
	height: 300px;
	top: 250px;
	background-color: rgba(49, 191, 195, .8);
	transition: .5s;
	color: #fff;
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	flex-direction: column;
}
.advantages__button {
	margin: auto 10px 10px;
	color: #fff;
	max-width: 160px;
	background-color: #FF9800;
	padding: 10px 14px 12px;
	border-radius: 5px;
	font-size: 20px;
	line-height: 20px;
	text-decoration: none;
	text-align: center;
}
.advantages__description h3, .advantages__description p {
	padding: 14px 10px;
	width: 424px;
	color: #fff;
}
.advantages__description p {
	font-size: 20px;
}
.section__features-item:hover .advantages__description {
	top: 0;
	cursor: pointer;
}
/* ------------------ FOOTER ------------------ */

.footer {
	padding-top: 50px;
	padding-bottom: 100px;
	text-align: center;
	background: rgba(49, 191, 195, .8) url(img/texture.png) no-repeat;
	background-position: top center;
	-webkit-background-size: contain;
	background-size: contain;
	color: #fff;
}
.footer__title {
	margin-bottom: 40px;
}
.footer__subtitle {
	margin-bottom: 70px;
}
.footer__title {
	position: relative;
}
.footer__title::after, .footer__title::before {
	content: '';
	position: absolute;
	width: 100px;
	height: 1px;
	background-color: rgba(255, 255, 255, .8);
	z-index: 9;
}
.footer__title::after {
	bottom: -10px;
	left: 150px;
}
.footer__title::before {
	bottom: -15px;
	left: 200px;
}
.footer__form input, .footer__form textarea {
	display: block;
	width: 460px;
	margin-bottom: 40px;
	box-sizing: border-box;
	padding: 14px 10px;
	font-size: 20px;
}
.footer__btn {
	display: block;
	width: 460px;
	padding: 14px 10px;
	background-color: #FF9800;
	text-align: center;
	font-size: 20px;
	color: #fff;
}
/* ------------------ SOCIAL FIXED BUTTONS ------------------ */

.feed {
	position: fixed;
	bottom: 0;
	width: 100%;
	z-index: 999;
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
}
.feed__social-buttons, .feed__call {
	width: 50%;
	margin: 0;
	box-sizing: border-box;
	text-align: center;
	padding: 14px 10px 16px;
	font-size: 20px;
	text-transform: uppercase;
	text-decoration: none;
}
.feed__social-buttons {
	background-color: black;
	color: white;
}
.feed__call {
	background-color: red;
	color: white;
}
.feed__social-buttons:hover, .feed__call:hover {
	color: #c3c3c3;
	cursor: pointer;
}
.social-buttons {
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
	position: fixed;
	bottom: 40px;
	width: 100%;
	padding: 0;
	justify-content: center;
	text-decoration: none;
	list-style-type: none;
	z-index: 999;
	margin-bottom: -200px;
	opacity: 0;
	transition: 1s;
}
.social-buttons__item {
	padding: 20px 10px;
}
.social-buttons__image {
	height: 75px;
	width: 75px;
}
.social-buttons--visible {
	display: -webkit-flex;
	display: -moz-flex;
	display: -ms-flex;
	display: -o-flex;
	display: flex;
}
.active {
	opacity: 1;
	margin-bottom: 0;
}