html{
    height: 100%;
}

body
{
    margin: 0;
    padding: 0;
    background: #172031;
}

*
{
    font-family: 'Outfit',sans-serif;
}

.login-box
{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    padding: 40px;
    transform: translate(-50%,-50%);
     background: rgba(0, 0, 0, .5);
     box-sizing: border-box;
     border-radius: 10px;
}

.login-box h2{
    margin: 0 0 30px;
    padding: 0;
    color: #fff;
    text-align: center;
}


.login-box .user-box 
{
   position: relative; 
}

.login-box .user-box input
{
width: 100%;
padding: 10px 0;
font-size: 16px;
color: #fff;
margin-bottom: 30px;
border: none;
border-bottom: 1px solid #fff;
outline: none;
background: transparent;
}

.login-box .user-box label
{
    position: absolute;
    top: 0%;
    left: 0%;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    pointer-events: none;
    transition: .5s;
}

.login-box .user-box input:focus~label,
.login-box .user-box input:valid~label
{
    top: -20px;
    left: 0%;
    color: #03e9f4;
    font-size: 12px;
}

.forgot_pass
{
    font-size: 12px;
    color: #5b6b8b;
    float: right;
}

.btn_submit
{
    position: relative;
    display: inline-block;
    padding: 10px 20px;
    color: #03e9f4;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    overflow: hidden;
    transition: .5s;
    margin-top: 20px;
    letter-spacing: 4px;
}

.btn_submit:hover
{
    background: #03e9f4;
    color: rgba(10,11,21);
    border-radius: 5px;
}

.btn_submit span
{
    position: absolute;
    display: block;
}

.btn_submit span:nth-child(1)
{
    top: 0%;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg,transparent, #03e9f4);
    animation: btn-anim1 1s linear infinite;
}

@keyframes btn-anim1 {
    0%
    {
        left: -100%;
    }
    50%,
    100%{
   left: 100px;
    }   
}

.btn_submit span:nth-child(2)
{
    top: -100%;
    right: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg,transparent, #03e9f4);
    animation: btn-anim2 1s linear infinite;
    animation-delay: .25s;
}

@keyframes btn-anim2 {
    0%
    {
        top: -100%;
    }
    50%,
    100%{
   top: 100px;
    }   
}

.btn_submit span:nth-child(3)
{
    bottom: 0%;
    right: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(270deg,transparent, #03e9f4);
    animation: btn-anim3 1s linear infinite;
    animation-delay: .5s;
}

@keyframes btn-anim3 {
    0%
    {
        right: -100%;
    }
    50%,
    100%{
   right: 100%;
    }   
}

.btn_submit span:nth-child(4)
{
    bottom: -100%;
    left: 0px;
    width: 2px;
    height: 100%;
    background: linear-gradient(360deg,transparent, #03e9f4);
    animation: btn-anim4 1s linear infinite;
    animation-delay: .75s;
}

@keyframes btn-anim4{
    0%
    {
        bottom: -100%;
    }
    50%,
    100%{
   bottom: 100px;
    }   
}