*,
*::before,
*::after{
	margin:0;
	padding:0;
	box-sizing:border-box;
}

html{
	font-family:Arial, Helvetica, sans-serif;
	box-sizing:border-box;
	font-size:10px;
}

body{
	width:100%;
}

header{
width:100%;
background-color: #fff ;
position:fixed;
z-index:9999;
padding:7px;
top:0;
border-bottom-style:solid;
border-bottom-width:medium;
border-bottom-color:navy;

}

.container{
	width:100%;
	max-width:120rem;
	margin:0 auto;
	padding:0 1.5rem;
}
.logo{
	margin-left:-10vh;
}

nav{
	width:100%;
	height:8rem;
	display:flex;
	align-items:center;
	justify-content:space-between;
	}
.navbar-brand i{
	font-size:4rem;
	color:#fff;
	margin:auto;
}

.nav-list{
display:flex;
list-style:none;
}

.nav-link{
	font-size:1.6rem;
	text-decoration:none;
	display:block;
	margin:0 2.5rem;
	color:navy;
	font-weight:bold;
	transform:scale(0);
	transition: transform 650ms;
}

.nav-item{
	position:relative;
	line-height:8.5rem;
	transition-delay:.5s;
	visibility:hidden;
}

.nav-item::before{
	content:"";
	position:absolute;
	width:100%;
	height:3px;
	background-color:yellow;
	left:0;
	bottom:0;
	transform:scaleX(0);
	transform-origin:right;
	transition:transform 650ms cubic-bezier(0.68, -0.55,0.265, 1.55);
}

.nav-item:hover::before{
	transform:scaleX(1);
	transform-origin:left;
}

/*hamburger menu*/
.hamburger{
	width:3.6rem;
	height:1.8rem;
	position:relative;
	cursor:pointer;
	line-height:5rem;
	z-index:1500;
}

.hamburger .line{
	width:100%;
	height:2px;
	background-color:navy;
	position:absolute;
	display:block;
	right:0;
	transition:all 650ms;
}

.hamburger .line:nth-child(1){
	top:0;
}

.hamburger .line:nth-child(2){
	top:50%;
	margin-top:-1px;
	width:2.8rem;
}

.hamburger .line:nth-child(3){
	top:100%;
	margin-top:-2px;
	width:2rem;
}

.hamburger.active .line:nth-child(1){
	transform: translateY(.8rem) rotate(45deg);
	width:2rem;
}

.hamburger.active .line:nth-child(2){
	opacity:0;
}

.hamburger.active .line:nth-child(3){
	transform: translateY(-.8rem) rotate(-45deg);
	width:2rem;
}

.nav-list.active .nav-link{
	transform:scale(1);
}
.nav-list.active .nav-item{
	transition-delay:initial;
	visibility:visible;
}

.nav-list.active .nav-item:nth-child(1) .nav-link{
	transition-delay:.5s;
}

.nav-list.active .nav-item:nth-child(2) .nav-link{
	transition-delay:.4s;
}

.nav-list.active .nav-item:nth-child(3) .nav-link{
	transition-delay:.3s;
}

.nav-list.active .nav-item:nth-child(4) .nav-link{
	transition-delay:.2s;
}

.nav-list.active .nav-item:nth-child(5) .nav-link{
	transition-delay:.1s;
}

/*reverse*/
.nav-list .nav-item:nth-child(1) .nav-link{
	transition-delay:.1s;
}

.nav-list .nav-item:nth-child(2) .nav-link{
	transition-delay:.2s;
}

.nav-list .nav-item:nth-child(3) .nav-link{
	transition-delay:.3s;
}

.nav-list .nav-item:nth-child(4) .nav-link{
	transition-delay:.4s;
}

.nav-list .nav-item:nth-child(5) .nav-link{
	transition-delay:.5s;
}

#topBtn{
	position:fixed;
	bottom:40px;
	right:40px;
	font-size:22px;
	width:50px;
	height:50px;
	color:white;
	background:#242359;
	border:none;
	cursor:pointer;
	border-radius:50%;
	z-index:999;
}


@media screen and (max-width:768px){
	.nav-list{
	width:100%;
	height:100vh;
	flex-direction:column;
	align-items:center;
	justify-content:center;
	background-color: #fff ;
	position:fixed;
	left:0;
	bottom:-100vh;
	transition:bottom 650ms;
	
}

.nav-list.active{
bottom:0;	
}
.logo{
	margin-left:0;
}

}