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

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family:  'Poppins', sans-serif;;
}
body{
    display: flex;
    align-items: center;
    justify-content: 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;
    width: 380px;
    height: 420px;
    top: -50%;
    left: -50%;
    background: linear-gradient(0deg,transparent,#45f3ff,#45f3ff,#45f3ff);
    z-index: 1;
    transform-origin:bottom right ;
    animation: animate 6s linear infinite;

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

}
.borderLine{
    top: 0;
    inset: 0;
}
.borderLine::before{
    content: '';
    position: absolute;
    width: 380px;
    height: 420px;
    top: -50%;
    left: -50%;
    background: linear-gradient(0deg,transparent,#c81999,#c81999,#c81999);
    z-index: 1;
    transform-origin:bottom right ;
    animation: animate 6s linear infinite;
    animation-delay: -1.5s;
}
.borderLine::after{
    content: '';
    position: absolute;
    width: 380px;
    height: 420px;
    top: -50%;
    left: -50%;
    background: linear-gradient(0deg,transparent,#c81999,#c81999,#c81999);
    z-index: 1;
    transform-origin:bottom right ;
    animation: animate 6s linear infinite;
    animation-delay: -1.5s;
}
@keyframes animate{
    0%{
        transform: rotate(0deg);

    }
    100%{
        transform: rotate(360deg);

    }
}
.box form{
    position: absolute;
    inset: 4px;
    background: #222;
    padding: 50px 40px;
    border-radius: 8px;
    z-index: 2;
    display: flex;
    flex-direction: column;
}
.box form h2{
    color: #fff;
    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%;
    border: none;
    padding: 20px 10px 10px;
    background: transparent;
    outline: none;
    box-shadow: none;
    color: #23242a;
    font-size: 1em;
    letter-spacing: 0.05em;
    transition: 0.5s;
    z-index: 10;
}
.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: #fff;
    font-size: 0.75em;
    transform: translateY(-34px);

}
.box form .inputbox i{
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: #fff;
    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 .link{
    display: flex;
    justify-content: space-between;
}
.box form .link a{
    margin: 10px 0;
    font-size: 0.75em;
    color: #8f8f8f;
    text-decoration: none;

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

}
.box form  input
{
    border: none;
    outline: none;
    padding: 9px 25px;
    background: #fff;
    cursor: pointer;
    font-size: 0.9em;
    border: 4px;
    font-weight: 600;
    width: 100px;
    margin-top: 10px;
    border-radius: 5px;
}
.box form  input:active{
    opacity: 0.8;

}