.g-sert{
    margin: 0 -15px 0;
    clear: both;
    padding-top: 16px;
    padding-bottom: 16px;
}
.g-sert__big-banner-wrp{
	padding: 0 15px;
	margin-bottom: 45px;
}
.g-sert__big-banner{
	padding-top: 34%;
	background-size: cover;
	background-repeat: no-repeat;
	background-position: 0 0;
}
.g-sert__flex-cont{
	display: flex;
	flex-wrap: wrap;
}
.g-sert__item-wrp{
	padding: 0 15px 30px;
	width: 20%;
	display: inline-block;
}
.g-sert__item{
	border: 1px solid #d8d8d8;
	height: 100%;
	position: relative;
}
.g-sert__item-header{
	position: relative;
	padding-top: 68%;
	border-bottom: 1px solid #d8d8d8;
}
.g-sert__item-inner{
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
}
.g-sert__item-img-wrp{
	width: 72%;
	max-width: 100%;
	max-height: 100%;
    box-shadow: 15px 15px 45px rgba(0,0,0,.25);
    position: relative;
}
.g-sert__item-img-wrp:before{
	content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: .31;
    background: linear-gradient(155deg, #ffffff 49%, transparent 50%);
}
.g-sert__item-img{
	max-width: 100%;
	max-height: 100%;
}

.g-sert__item-body{
	padding: 20px 25px 125px;
	text-align: center;
}
.g-sert__item-title{
	color: #21acb7;
	font-size: 16px;
	font-weight: 500;
	line-height: 1.5;
	text-transform: uppercase;
	text-decoration: none;
}
.g-sert__item-title:visited,
.g-sert__item-title:hover,
.g-sert__item-title:focus{
	color: #21acb7;
	text-decoration: none;
}
.g-sert__item-btn{
	position: absolute;
	min-width: 150px;
	height: 65px;
	line-height: 64px;
	bottom: 40px;
	left: 50%;
	transform: translateX(-50%);
	background-color: hsl(34, 100%, 50%);
	color: white;
	font-size: 16px;
	font-weight: 500;
	text-align: center;
	border: 0;
}

@media (max-width: 1499px){
	.g-sert__item-wrp{
		width: 25%;
	}
}

@media (max-width: 1199px){
	.g-sert__item-wrp{
		width: 33.3333%;
	}
}

@media (max-width:991px){
	.g-sert__item-img-wrp {
	    box-shadow: 10px 10px 20px rgba(0,0,0,0.2);
	    position: relative;
	}
	.g-sert__item-btn {
	    height: 50px;
	    line-height: 48px;
	    bottom: 20px;
	}
	.g-sert__item-body {
	    padding: 20px 25px 90px;
	}
}

@media (max-width:767px){
	.g-sert__big-banner-wrp {
	    margin-bottom: 30px;
	}
	.g-sert__flex-cont {
	    padding: 0 15px;
	}

}

@media (max-width:700px){
	.g-sert__item-wrp{
		width: 50%;
	}
}

@media (max-width:500px){
	.g-sert__item-wrp{
		width: 100%;
	}
}


/* Ховер-эффекты */

@media (min-width: 992px){
	.g-sert__item-img-wrp,
	.g-sert__item-img-wrp:before,
	.g-sert__item-btn{
		transition: .4s all;
	}
	.g-sert__item:hover .g-sert__item-img-wrp{
	    box-shadow: 15px 15px 25px rgba(0,0,0,.3);
	}
	.g-sert__item:hover .g-sert__item-img-wrp:before{
	    opacity: 0;
	}
	.g-sert__item-btn:hover{
		background-color: hsl(34, 100%, 45%);
	}
}