#ph-module-wrapper {
  border: 1px solid #ddd;
  padding: 20px;
  max-width: 500px;
  margin: 20px auto;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}
#ph-form input {
  width: 100%;
  padding: 8px;
  margin-bottom: 10px;
}
#ph-form button {
  background: #0073aa;
  color: #fff;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  border-radius: 4px;
}
#ph-form button:hover {
  background: #005f8d;
}