@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');


*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

html{
    height: 100%;
}
body{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background: linear-gradient(#141e30, #243b55);
}
.login-box{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    padding: 40px;
    transform: translate(-50%,-50%);
    background: rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.6);
    border-radius: 10px;
}
.login-box h2{
    margin: 0 0 30px;
    padding: 0;
    color: #fff;
    text-align: center;
}
.login-box .user-box{
    position: relative;
}
.login-box .user-box input{
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #fff;
    outline: none;
    background: transparent;
}
.login-box .user-box label{
    position: absolute;
    top:0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    pointer-events: none;
    transition: .5s;
}
.login-box .user-box input:focus ~ label,
.login-box .user-box input:valid ~ label{
    top: -20px;
    left: 0;
    color: #03e9f4;
    font-size: 12px;
}
.login-box form a{
    position: relative;
    display: inline-block;
    padding: 10px 20px;
    color: #03e9f4;
    font-size: 16px;
    text-decoration: none;
    text-transform: uppercase;
    overflow: hidden;
    transition: .5s;
    margin-top: 40px;
    letter-spacing: 4px;
}
.login-box a:hover{
    background: #03e9f4;
    color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 5px #03e9f4,
                0 0 25px #03e9f4,
                0 0 50px #03e9f4,
                0 0 100px #03e9f4;
}
.login-box a span{
    position: absolute;
    display: block;
}
.login-box a span:nth-child(1){
    top: 0;
    left: -100%;
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg,transparent,#03e9f4);
    animation: btn-anim1 1s linear infinite;
}
@keyframes btn-anim1{
    0%{
        left: -100%;
    }
    50%,100%{
        left: 100%;
    }
}
.login-box a span:nth-child(2){
    top: -100%;
    right: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg,transparent,#03e9f4);
    animation: btn-anim2 1s linear infinite;
    animation-delay: .25s;
}
@keyframes btn-anim2{
    0%{
        top: -100%;
    }
    50%,100%{
        top: 100%;
    }
}
.login-box a span:nth-child(3){
    bottom: 0;
    right: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(270deg,transparent,#03e9f4);
    animation: btn-anim3 1s linear infinite;
    animation-delay: .5s;
}
@keyframes btn-anim3{
    0%{
        right: -100%;
    }
    50%,100%{
        right: 100%;
    }
}
.login-box a span:nth-child(4){
    bottom: -100%;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(360deg,transparent,#03e9f4);
    animation: btn-anim4 1s linear infinite;
    animation-delay: .75s;
}
@keyframes btn-anim4{
    0%{
        bottom: -100%;
    }
    50%,100%{
        bottom: 100% ;
    }
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 100px;
    /* background-color: red; */
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 99;
    background-image: linear-gradient(180deg, #162938, transparent);
}

.logo {
    font-size: 2em;
    color: #FFFFFF;
    user-select: none;
}

.navigation a {
    position: relative;
    font-size: 1.1em;
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 500;
    margin-left: 40px;
}

.navigation a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: #FFFFFF;
    border-radius: 5px;
    left: 0;
    bottom: -6px;
    transform: scaleX(0);
    transition: transform 0.5s;
    transform-origin: right;
}

.navigation a:hover::after {
    transform-origin: left;
    transform: scaleX(1);
}