@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100;200;300;400;500;600;700;800;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;
    width: 100%;
    background: #50515a;
}
.box{
    position: relative;
    width: 380px;
    height: 420px;
    background: #1c1c1c;
    border-radius: 25px;
    overflow: hidden;
}
.box::before
{
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 380px;
height: 420px;
background: linear-gradient(0deg,transparent,
transparent,#45f3ff,#34f3ff,#45f3ff);
z-index: 1;
transform-origin: bottom right;
animation: animate 6s linear infinite;
}
.box::after
{
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 380px;
height: 420px;
background: linear-gradient(0deg,transparent,
transparent,#45f3ff,#34f3ff,#45f3ff);
z-index: 1;
transform-origin: bottom right;
animation: animate 6s linear infinite;
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;
    transform-origin: bottom right;
    animation: animate 6s linear infinite;
    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;
    transform-origin: bottom right;
    animation: animate 6s linear infinite;
    animation-delay: -4.5s;    
}
@keyframes animate{
    0%
    {
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }
}
.box form{
    position: absolute;
    inset: 4px;
    background: #222;
    padding: 50px 40px;
    border-radius: 25px;
    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;
    margin-top: 35px;
    width: 300px;
}
.box form .inputbox input{
    position: relative;
    width: 100%;
    padding: 20px 0px 10px;
    background: 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 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 .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: #fff;
}
.box form input[type="submit"]{
    border: none;
    outline: none;
    padding: 9px 25px;
    background: #fff;
    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;
}