*
{
    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;    
    overflow: hidden;
}

.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;
}

.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;
}

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

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

.box form h2{
    color: #45f3ff;
    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: transparent;
    outline: none;
    border:none;
    box-shadow: none;
    color: #23242a;
    font-size: 1em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    z-index: 8;

}

.box form .inputBox span{
    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 ~ span,
.box form .inputBox input:focus ~ span{
    color: #45f3ff;
    font-size: 0.75em;
    transform: translateY(-34px);
}

.box form .inputBox i {
    position:absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 100%;
    background: #45f3ff;
    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: #45f3ff;
}

.box form input[type="submit"]{
    border: none;
    outline: none;
    padding: 9px 25px;
    background: #45f3ff;
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 4px;
    font-weight: 600;
    width: 100px;
    margin-top: 10px;
}

.box form input[type="submit"]:active{
    opacity: 0.8;
}