.kumioverlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
  display: flex;
  justify-content: center;
  align-items: center;
}
.kumipopup {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  text-align: center;
  z-index: 9999;
}

.kumipopup button {
  margin: 10px;
  padding: 12px 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background-color: #3498db;
  color: white;
  transition: background-color 0.2s ease;
}

.kumipopup button:hover {
  background-color: #2980b9;
}