html,
body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #85FFBD;
  background-image: radial-gradient( circle farthest-corner at 10% 20%,  rgba(14,174,87,1) 0%, rgba(12,116,117,1) 90% );
  text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
}

.form-signin {
  width: 100%;
  max-width: 400px;
  padding: 15px;
  margin: auto;
  background: rgba(255,255,255,0.2);
  border-radius: 15px;
}

.form-signin h2{
  color: #fff;
  text-shadow: 1px 1px 1px #000;
}

.form-signin .checkbox {
  font-weight: 400;
  color: #fff;
  text-shadow: 1px 1px 1px #000;
}

.form-signin .form-floating:focus-within {
  z-index: 2;
}

.form-signin input, .form-signin select{
  margin-bottom: 10px;
  border-radius: 5px;
}
.error{
  font-weight: bolder;
  font-size: 15px;
  color: orangered;
  text-shadow: 1px 1px 1px #000;
}
.login_back{
  text-align: center !important;
}
.login_back a{
  text-decoration: none;
  color: #fff;
  text-shadow: 1px 1px 1px #000;
}
.login_back a:hover{
  color: orangered;
}