@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@700&family=Poppins:wght@400;500;600&display=swap');

*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body{
  margin: 0;
  padding: 0;
  /* {% comment %} background: linear-gradient(120deg,#2980b9, #8e44ad); {% endcomment %} */
  /* background: linear-gradient(130deg,#2980b9, #8e44ad,#3664B0,#369CB0, #8C51CB); */
  background: #4b4b4b;
  height: 100vh;
  overflow: hidden;
}

.center{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  background: #FFFFFF;
  border-radius: 10px;
  box-shadow: 10px 10px 15px rgba(0,0,0,0.05);
}

.center h1{
  text-align: center;
  padding: 20px 0;
  border-bottom: 1px solid silver;
  color: #108D93;
}

.center form{
  padding: 0 40px;
  box-sizing: border-box;
}

form .txt_field{
            position: relative;
            border-bottom: 2px solid #adadad;
            margin: 30px 0;
}

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

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

.txt_field span::before{
  content: '';
  position: absolute;
  top: 40px;
  left: 0;
  width: 0%;
  height: 2px;
  background: #2691d9;
  transition: .5s;
}

.txt_field input:focus ~ label,
.txt_field input:valid ~ label{
  top: -7px;
  color: #2691d9;
}

.txt_field input:focus ~ span::before,
.txt_field input:valid ~ span::before{
            width: 100%;
}

.pass{
  margin: -5px 0 20px 5px;
  color: #a6a6a6;
  cursor: pointer;
}

.pass:hover{
  text-decoration: underline;
}

input[type="submit"]{
  width: 100%;
  height: 50px;
  border: 1px solid;
  background: #2691d9;
  border-radius: 25px;
  font-size: 18px;
  color: #e9f4fb;
  font-weight: 700;
  cursor: pointer;
  outline: none;
  margin-bottom:1cm;
}

input[type="submit"]:hover{
  border-color: #2691d9;
  transition: .5s;
}

.icheck{
  margin: 10px 0;
  font-size: 16px;
  color: #666666;
}