@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins",sans-serif;
}
body{
    background-image: linear-gradient(90deg, rgba(2,0,36,0.5018382352941176) 0%, rgba(9,9,121,0.47942927170868344) 35%, rgba(0,212,255,0.3841911764705882) 100%), url('/static/images/login_background.jpeg');
    width: 100%;
    height: 100vh;
    min-height: 100vh;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;

}

.center{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 400px;
    background: white;
    border-radius: 10px;
}

.center h1{
    text-align: center;
    padding: 10px 0 20px 0;
    font-weight: 600;
    border-bottom: 1px solid silver;
}



.center form{
    padding: 0 40px;

}

form .txt_field{
    position: relative;
    border-bottom: 2px solid #adadad;
    margin: 50px 0;
}

form .txt_field input{
    width: 100%;
    padding: 0 5px;
    height: 40px;
    font-size: 16px;
    border: none;
    outline: none;
    background: none;
}

.txt_field label{
    position: absolute;
    top: 50%;
    left: 5px;
    color: #adadad;
    transform: translateY(-50%);
    font-size: 16px;
    pointer-events: none;
    transition: 0.25s;
}

.txt_field span::before{
    content: "";
    position: absolute;
    top: 40px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: #2691d9;
    transition: all 0.5s ease;
}

.txt_field input:focus ~ label,
.txt_field input:valid ~ label{
    top: -5px;
    color: #2691d9;
}
.txt_field input:focus ~ span::before,
.txt_field input:valid ~ span::before{
    width: 100%;
}

.login_submit{
    width: 100%;
    height: 50px;
    border: 1px solid;
    background-color: #2691d9;
    border-radius: 25px;
    font-size: 18px;
    color: white;
    margin-bottom: 30px;
    cursor: pointer;
}