body {
  background: linear-gradient(white,rgb(218, 216, 216));
  height: 100vh;
}
.card {
  border: none;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}
.form-control {
  border-radius: 10px;
}
.btn-custom {
  background:linear-gradient(to bottom, #92bef8, #158bfa);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px;
}
.btn-custom:hover {
  background:linear-gradient(to bottom, #c9defa, #80bffa);
  color: #fff;
}