style.css

html{
    scroll-behavior: smooth;
}
:root{
    --Catch:none;
    --BG_color:#000000;
    --Text_color:#e5e5e5;
    --Header_color:#14213d;
    --Header_text_color:#fff;
}
body
{  
color:var(--Text_color);
background-color:var(--BG_color);
opacity: 0.7;
margin:0;
overflow-x:hidden;
width:100vw;
position: relative;
}
.head-sec{
    width: 100%;
    background-color: var(--Header_color);
    color: var(--Header_text_color);
    font-family: sans-serif;
}
.for-drop{
    width: 100%;
}
.inter{
background-image: url(moon.jpg);
    height: 500px;
    width: 500px;
    right:10px;
    top:120px;
    background-size: cover;
    background-position: right;
    position: absolute;
    z-index: -1;
    opacity: 0.4;
}
.earth{
    background-image: url(earth.jpg);
    height: 300px;
    width: 500px;
    left:10px;
    top:500px;
    background-size: cover;
    background-position: right;
    position: absolute;
    z-index: -1;
    opacity: 0.4;
}
.jupiter{
    background-image: url(jupiter.jpg);
    height: 300px;
    width: 500px;
    right:-10px;
    background-size: cover;
    position: absolute;
    z-index: -1;
    opacity: 0.4;

}

.total{
    text-align: center;
    line-height: 20px;
    width: 100%;
}

h2,h3{
color:var(--Header_text_color);
letter-spacing: 3px;
font-weight: 100;
font-family:sans-serif;
}

.main{
width:50%;
margin:100px auto 50px auto;
}
p{
    font-family:monospace ;
    word-spacing: 1.5px;
    letter-spacing: 1.5px;
}

hr{
    border: dotted 5px;
    border-bottom: 0;
    width: 50px;
}
.hr{
    display: flex;
    justify-content: center;
}
.sec{
    width:50%;
    margin:100px auto 50px auto;
}

.thi{
    width:80%;
    margin:100px auto 50px auto;
}
.for{ 
    width:50%;
    margin:100px auto 50px auto;
}
.ps{
    margin-top: 40px;
}
.foot{
    background-color: var(--Header_color);
    width: 100%;
    height: 100px;
    margin:0;
    padding: 40px;
    padding-bottom: 0;
    display: grid;
    grid-template-columns: 1fr 1fr  1fr 1fr;
    grid-template-rows: 2fr 1fr;
}
.foot a{
    height:40px;
    text-decoration: none;
    /* color: var(--Text_color); */
    font-weight: bold;
    display: flex;
    justify-content: center;
}
a{
    text-decoration: none;
    color: var(--Header_text_color);
}
.copyr{
    grid-column-start: 1;
    grid-column-end: 5;
    grid-row-start: 3;
    display: flex;
    align-items: baseline;
    justify-content: center;
    text-align: center;

}
.nowrap{
white-space: nowrap;
}
header h1{
    padding-left: 10px;
    letter-spacing: 3px;
    font-weight: 100;
}
header{
    margin: 0;
    padding: 0;
    width:100%;
    display: flex;
    flex-flow: row nowrap;
    justify-content: space-between;
}
header button{
    border:none;
    height: 50px;
    width:50px;
    background-color:transparent;
}
header button .but{
    margin-top: 10px;
    display: flex;
    flex-flow:column wrap;
    align-items: center;
    justify-content: center;
}
header button .but,
header button .but::before,
header button .but::after{
    background-color: #fff;
    height: 2px;
    width:30px;
    border-radius: 3px;
}
 header button .but::before,
header button .but::after{
 content: "";
} 
header button .but::before{
    transform: translate(0px,9px);
}
header button .but::after{
    transform: translate(-30px,-9px);

}
nav ul{
    padding-left: 0;
}
nav li{
    width:100%;
    list-style-type: none;
    font-family: monospace;
    letter-spacing: 1.5px;
    font-size:large ;
    text-align: center;
    border-top:1px solid black;
    padding: 7px;
}
nav li:hover{
    transform: scale(1.2);
    transition: 0.5s;
}
nav {
   display: var(--Catch); 
   background-color: var(--Header_color);   
   transform-origin: top center;
   animation-name: dropDown;
   animation-duration: 1s;
   animation-fill-mode:forwards !important;
   /* -webkit-animation-fill-mode: forwards; */
}
:is(.head-sec:hover, .head-sec:focus-within) .but{
    background-color: transparent;
    transform:   rotateZ(720deg);
    transition-duration: 1s;
    
}
:is(.head-sec:hover, .head-sec:focus-within) .but::before{
    transform: rotateZ(-45deg);

}
:is(.head-sec:hover, .head-sec:focus-within) .but::after{
    transform: translateX(-30px) rotateZ(45deg);

}
:is(header:hover, header:focus-within,section:hover, section:focus-within)  nav{
    --Catch:block;
    display: block;
}
@keyframes dropDown {
    0%{
        transform: scaleY(0);
    }
    80%{
        transform: scaleY(1.2);
    }
    100%{
        transform: scaleY(1);
    }
}

.con-loadd{
    padding: 20px;
    height: 50px;
}
.load{
    display:inline-block;
    height: 40px;
    width: 40px;
    border-radius: 100%;
    border:2px solid var(--Text_color);
    animation-name: rotate;
    animation-duration: 3s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}
@keyframes rotate {
   0% {
        transform: rotateZ(0deg);   
    }
    11% {
        transform: rotateZ(40deg);  
        border-top: 4px dotted var(--Header_text_color);  
    }
    22% {
        transform: rotateZ(80deg);  
        border-top: 4px dotted var(--Header_text_color); 
        border-left: 4px dotted var(--Header_text_color);
    }
    33% {
        transform: rotateZ(120deg); 
        border-top: 4px dotted var(--Header_text_color);  
        border-left: 4px dotted var(--Header_text_color);
        border-bottom: 4px dotted var(--Header_text_color);
    }
    44%{
        transform: rotateZ(160deg); 
        border: 4px dotted var(--Header_text_color);  
    }
    55%{
        transform: rotateZ(200deg); 
        border-top: 4px dotted var(--Header_text_color); 
        border-left: 4px dotted var(--Header_text_color);
        border-bottom: 4px dotted var(--Header_text_color);
    }
   66% {
         transform: rotateZ(240deg);
        border-top: 4px dotted var(--Header_text_color); 
        border-left: 4px dotted var(--Header_text_color);
    }
    77%{   
        transform: rotateZ(280deg);
        border-top: 4px dotted var(--Header_text_color); 
    }
 88%{
     transform: rotateZ(320deg); 
     border-top: 4px dotted var(--Header_text_color);
    }
    100%{
        transform: rotateZ(360deg); 
       }
    
}