*{
    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: 370px;
height: 420px;
background: #1c1c1c;
border-radius: 50px 5px;
overflow: hidden;
}
.box::before{
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 370px;
height: 450px;
background: linear-gradient(60deg,transparent,#45f3ff,#45f3ff);
transform-origin: bottom right;
animation: animate 6s linear infinite;
}
.box::after{
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 370px;
    height: 450px;
    background: linear-gradient(60deg,transparent,#d9138a,#d9138a);
    transform-origin: bottom right;
    animation: animate 6s linear infinite;
    animation-delay: -3s;
    }
@keyframes animate{   
         0%{
            transform: rotate(0deg);
         }
         100%{
            transform: rotate(360deg);
         }
}
form{
position: absolute;
inset: 2px;
border-radius: 50px 5px;
background: #28292d;
z-index: 10;
padding: 30px 30px;
display: flex;
flex-direction: column;
}
h2{
    color: #45f3ff;
    font-size: 35px;
    font-weight: 500;
    text-align: center;
}
.inputBox{
    position: relative;
width: 300px;
margin-top: 35px;
}
.inputBox input{
    position: relative;
width: 100%;
padding: 20px 10px 10px ;
background: transparent;
border: none;
outline: none;
color: #23242a;
font-size: 1em;
letter-spacing: 0.o5em;
z-index: 10;
}
input[type="submit"]
{
font-size: 20px;
border: none;
outline: none;
background: #45f3ff;
padding: 5px;
margin-top: 40px;
border-radius: 90px;
font-weight: 600;
cursor: pointer;
}
input[type="submit"]:active
{
background: linear-gradient(90deg,#45f3ff,#d9138a);
opacity: 0.8;
}
.inputBox span{
position: absolute;
left: 0;
padding: 20px 10px 10px ;
font-size: 1em;
color: #8f8f8f;
pointer-events: none;
letter-spacing: 0.05em;
transition: 0.5s;
}

.inputBox input:valid ~ span,
.inputBox input:focus ~ span
{
    color: #45f3ff;
transform: translateX(-10px) translateY(-30px);
font-size: 0.75em;
}
.inputBox i
{
position: absolute;
left: 0;
bottom: 0;
width: 100%;
height: 2px;
background: #45f3ff;
border-radius: 4px;
transition: 0.5s;
pointer-events: none;
z-index: 9;
}
.inputBox input:valid ~ i,
.inputBox input:focus ~ i
{
    height: 44px;
}
.links{
display: flex;
justify-content: space-between;
}
.links a {
margin: 25px 0 ;
font-size: 1em;
color: #8f8f8f;
text-decoration: none;
}
.links a:hover,
.links a:nth-child(2)
{
    color:#45f3ff;
}
.links a:nth-child(2):hover{
text-decoration: underline 2px;
text-underline-offset: 5px;
}