@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;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #23242a;
}

.box{
    position: relative;
    width: 380px;
    height: 420px;
    background: #1c1c1c;
    border-radius: 8px;
}

.box form{
    position: absolute;
    inset: 4px;
    background-color: #222;
    padding: 50px 40px;
    border-radius: 8px;
    z-index: 2;
    display: flex;
    flex-direction: column;
}

.box form h2{
    color: #FFFFFF;
    font-weight: 500;
    text-align: center;
    letter-spacing: 0.1em;
}

.box form .inputBox{
    position: relative;
    width: 300px;
    margin-top: 35px;
}

.box form .inputBox input{
    position: relative;
    width: 100%;
    padding: 20px 10px 10px;
    background-color: transparent;
    outline: none;
    border: none;
    box-shadow: none;
    color: #23242a;
    font-size: 1em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    z-index: 10;
}

.box form .inputBox label{
    position: absolute;
    left: 0;
    padding: 20px 0px 10px;
    pointer-events: none;
    color: #8f8f8f;
    font-size: 1em;
    letter-spacing: 0.05em;
    transition: 0.5s;
}

.box form .inputBox input:valid ~ label, .box form .inputBox input:focus ~ label{
    color: #FFFFFF;
    font-size: 0.75em;
    transform: translateY(-34px);
}

.box form .inputBox i{
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background-color: #FFFFFF;
    border-radius: 4px;
    overflow: hidden;
    transition: 0.5s;
    pointer-events: none;
}

.box form .inputBox input:valid ~ i, .box form .inputBox input:focus ~ i{
    height: 44px;
}

.box form .links{
    display: flex;
    justify-content: space-between;
}

.box form .links a{
    margin: 10px 0;
    font-size: 0.75em;
    color: #8f8f8f;
    text-decoration: none;
}

.box form .links a:hover, .box form .links a:nth-child(2){
    color: #FFFFFF;
}

.box form .submit{
    border: none;
    outline: none;
    padding: 9px 25px;
    background-color: #FFFFFF;
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 4px;
    font-weight: 600;
    width: 100px;
    margin-top: 10px;
}

.box form .submit:active{
    opacity: 0.8;
}

.box::before{
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 380px;
    height: 420px;
    background: linear-gradient(0deg,transparent,transparent, #45f3ff,#45f3ff,#45f3ff);
    z-index: 1;
    animation: animate 6s linear infinite;
    transform-origin: bottom right;
}

@keyframes animate{
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.box{
    overflow: hidden;
}

.box::after{
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 380px;
    height: 420px;
    background: linear-gradient(0deg,transparent,transparent, #45f3ff,#45f3ff,#45f3ff);
    z-index: 1;
    animation: animate 6s linear infinite;
    transform-origin: bottom right;
    animation-delay: -3s;
}

.borderLine{
    position: absolute;
    top: 0;
    inset: 0;
}

.borderLine::before{
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 380px;
    height: 420px;
    background: linear-gradient(0deg,transparent,transparent, #ff2770,#ff2770,#ff2770);
    z-index: 1;
    animation: animate 6s linear infinite;
    transform-origin: bottom right;
    animation-delay: -1.5s;
}

.borderLine::after{
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 380px;
    height: 420px;
    background: linear-gradient(0deg,transparent,transparent, #ff2770,#ff2770,#ff2770);
    z-index: 1;
    animation: animate 6s linear infinite;
    transform-origin: bottom right;
    animation-delay: -4.5s;
}

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);
}