*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    text-decoration: none;
}
body{
    overflow: hidden;
    color: white;
    animation: fadeIn 1s ease-in-out;
    background-color: black;
    background-attachment: fixed;
}
header{
    width: 100%;
    height: 100vh;
    background-color: transparent;
    animation: fadeIn 1s ease-in-out;

}
/* add animated star */
.star{
    position: absolute;
    width: 2px;
    height: 2px;
    background-color: #fff;
    animation: twinkle 2s infinite;
    box-shadow: 0 0 10px 2px rgba(255,255,255,0.5);
}
@keyframes twinkle  {
    0%{
        opacity: 0.5;
    }
    50%{
        opacity: 1;
    }
    100%{
        opacity: 0.5;
    }
}
.navbar{
    display: flex;
    justify-content: space-around;
    align-items: center;
    animation: sideInFromTop 1s ease-in-out;

}
.navbar img{
   width: 100px;
   animation: rotate 1s ease-in-out;
}
.navbar .center-nav a,.social a{
 color: #ffffff;
 margin-left: 15px;
 font-size: 1.7rem;
 transition: all 0.5s ease;
 animation: fadeInUp 1s ease-in-out;
}
.navbar .center-nav a:first-child{
    color: rgb(255,140, 0);
    text-shadow:0px 0px 30px rgb(255,140, 0) ;
}
.navbar .center-nav a:last-child{
    color: rgb(255,140, 0);
    text-shadow:0px 0px 30px rgb(255,140, 0) ;
}
.navbar.center-nav a:hover,.social a:hover{
    color: rgb(255,140, 0);
    text-shadow:0px 0px 30px rgb(255,140, 0) ;
}

/* new styles */
.navbar.center-nav a{
    position: relative;
    text-decoration: none;
}
.navbar.center-nav a::before{
    content: "";
    position: absolute ;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: rgb(255,140, 0);
    visibility: hidden;
    transform: scaleX(0);
    transition: all 0.3s ease-in-out;
    
}
.navbar.center-nav a:hover before{ 
    transform: scaleX(1);
   visibility: visible;
}
.text{
    position: relative;
    top: 10rem;
    left: 11rem;
    letter-spacing:1px;
    animation: fadeInUp 1s ease-in-out;
}
.text h1{
    font-weight: bold;
    font-size: 3.7rem;
    font-family: sans-serif;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-in-out;
   
}
.btn{
    color: white;
    border: 2px solid;
    position: relative;
    top:3rem;
    padding-left: 25px;
    padding-right: 25px;
    padding-top: 14px;
    background-color: rgb(204, 126, 30);
    padding-bottom: 14px;
    border-radius: 6px;
    transition: all 0.5s ease;
    margin-right: 10px;
    animation: fadeInUp 1s ease-in-out 0.5s backwards;
}
.text .btn:hover{
    background-color: rgb(255,140, 0);
    box-shadow:0 0 10px 2px rgb( 255,140, 0) ;
}
.text p{
    width: 48%;
    animation: fadeInUp 1s ease-in-out 1.5s backwards;

}
.burger{
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    width: 90%;
    padding: 20px;
    animation: slideInFromBottom 1s ease-in-out 1.5 backwards;
}
.burger img{
   width: 100px;
   height: 100px;
   border-radius: 50%;
   margin-left: 20px;
   object-fit: cover;
   border:2px solid white ; 
   transition: transform 0.3s ease;
   animation: fadeInUp 1s ease-in-out 1.5s backwards;
}
.burger img:hover{
  transform: scale(1.1);
  box-shadow:0 0 30px rgba(255,255,255,0.8) ;
 }
.burger-toggle img{
    position: absolute;
    width: 38%;
    height: 74%;
    right: 47px;
    top: 7rem;
    
    filter: drop-shadow(65px 90px 392px);
    animation: fadeInUp 1s ease-in-out 2.5s backwards;
}    
.burger,.burger-toggle{
    display: flex;
}
.burger-toggle img{
    display: none;
}
.burger-toggle img.active{
    display: block;
}
/* animation */
@keyframes fadeIn {
   from{
    opacity: 0;
   } 
   to{
    opacity: 1;
   }
}
@keyframes fadeInUp {
   from{
    opacity: 0;
    transform: translateY(50px);
   } 
   to{
    opacity: 1;
    transform: translateY(0);
   }
}
@keyframes slideInFromTop {
    from{
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform:translateY(0) ;
        opacity: 1;
    }
}
@keyframes  slideInFromBottom {
    from{
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform:translateY(0) ;
        opacity: 1;
    }
}
@keyframes rotateIn {
    from{
        transform: rotate3d(0,0,1,-200deg);
        opacity: 0;
    }
    to{
        transform: none;
        opacity: 1;
    }
    
}