html,
body {
  height: 100%;
}

body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  background: url("../../images/ABC_login_background.jpg");
  background-position: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-color: #f5f5f5;
}

.form-signin {
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: auto;
  background-color: white;
}

.btn-primary:hover {
  background-color: #0056b3;
  transform: scale(1.05);
  transition: all 0.3s ease;
}

.form-signin {
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}