*{
	margin: 0;
	padding: 0;
	font-family: 'Lato', sans-serif;
}
.header{
	min-height: 100vh;
	width: 100%;
	background-image: url("assets/header.jpg");
	background-position: center;
	background-size: cover;
	position: relative;
}
nav{
	display: flex;
	padding: 2% 6%;
	justify-content: space-between;
	align-items: center;
	background-color: #242526;
}
nav img{
	width: 150px;
}
.nav-links{
	flex: 1;
	text-align: right;
}
.nav-links ul li{
	list-style: none;
	display: inline-block;
	padding: 8px 12px;
	position: relative;
}
.nav-links ul li a{
	color: #fff;
	text-decoration: none;
	font-size: 13px;
}
.nav-links ul li::after{
	content: '';
	width: 0%;
	height: 1px;
	background: #AAB300;
	display: block;
	margin: auto;
	transition: 0.5s;
}
.nav-links ul li:hover::after{
	width: 100%;
}
.text-box{
	width: 90%;
	color: #fff;
	position: absolute;
	top: 40%;
	left: 50%;
	transform: translate(-50%,-50%);
	text-align: center;
}
.text-box h1{
	font-size: 62px;
}
.text-box p{
	margin: 10px 0 40px;
	font-size: 14px;
	color: #fff;
}

nav .fa{
	display: none;
}

@media(max-width: 700px){
	.text-box h1{
		font-size: 20px;
	}
	.nav-links ul li{
		display: block;
	}
	.nav-links{
		position: absolute;
		background: #272727;
		height: 100vh;
		width: 200px;
		top: 0;
		right: -200px;
		text-align: left;
		z-index: 2;
		transition: 1s;
	}
	nav .fa{
		display: block;
		color: #fff;
		margin: 10px;
		font-size: 22px;
		cursor: pointer;
	}
	.nav-links ul{
		padding: 20px;
	}
}

/*---- introduction ----*/

.introduction{
	width: 80%;
	margin: auto;
	text-align: center;
	padding-top: 0px;
}
h2{
	font-size: 36px;
	font-weight: 600;
	color: #AAB300;
	margin-top: 5%;
}

p{
	color: #000;
	font-size: 20px;
	font-weight: 300;
	line-height: 40px;
	padding: 0px;
}
.row{
	margin-top: 5%;
	display: flex;
	justify-content: space-between;
}
.p1{
	font-family: 'Lato', sans-serif;
	flex-basis: 31%;
	background-color: #Fff;
	border-radius: 10px;
	margin-bottom: 5%;
	padding: 0px 12px;
	boxing-sizing: border-box;
	text-align: left;
}
.p2{
	width: 80%;
	margin: auto;
	text-align: left;
	padding-top: 0px;
	font-family: 'Lato', sans-serif;
	flex-basis: 31%;
	background-color: #Fff;
	border-radius: 10px;
	margin-bottom: 5%;
	padding: 0px 12px;
	boxing-sizing: border-box;
}
button{
	font-family: 'Lato', sans-serif;
	font-size: 20px;
	font-weight: 600;
	color: #fff;
	padding: 0;
	margin: 0;
	width: 100%;
	height: 150px;
	text-align: center;
	top:100px;
	position: relative;
	border: none;
	transition-duration: .60s;
}
button:focus {
	outline: none;
}

button:before {
	content: '';
	display: block;
	position: absolute;
	bakcground: rgba(255,255,255,.5);
	width: 60px;
	height: 100%;
	left: 0;
	top: 0;
	opacity: .5s;
	filter: blur(30px);
	transform: translateX(-130px) skewX(-15deg);
}

button:after {
	content: '';
	display: block;
	position: absolute;
	background: rgba(255,255,255,.2);
	width: 30px;
	height: 100%;
	left: 30px;
	top: 0;
	opacity: 0;
	filter: blur(30px);
	transform: translate(-100px) scaleX(-15deg);
}

button:hover {
	background: #AAB300;
	opacity: 1;
	cursor: pointer;
}

button:hover:before {
	transform: translateX(300px) skewX(-15deg);
	opacity: .6;
	transition: .7s;
}

button:hover:after {
	transform: translateX(300px) skewX(-15deg);
	opacity: .5;
	transition: .7s;
}

.button1{
	background:linear-gradient(rgba(150,300,0,.2),rgba(150,300,0,.2)),url("assets/courses.png");
}
.button2{
	background:linear-gradient(rgba(150,300,0,.2),rgba(150,300,0,.2)),url("assets/certificates.png");
}
.button3{
	background:linear-gradient(rgba(150,300,0,.2),rgba(150,300,0,.2)),url("assets/instructors.png");
}
.button4{
	background:linear-gradient(rgba(150,300,0,.2),rgba(150,300,0,.2)),url("assets/student_work.png");
}

@media(max-width: 700px){
	.row{
		flex-direction: column;
	}
}
.text-box h1{
	font-size: 62px;
}