.modal-alert {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  background-color: white;
  margin: 15% auto;
  padding: 20px 30px;
  border-radius: 12px;
  max-width: 400px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
  font-family: sans-serif;
  position: relative;
}

.close-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 22px;
  cursor: pointer;
  color: #999;
}

#modal-ok {
  margin-top: 15px;
  padding: 8px 20px;
  background-color: #08531C;
  border: none;
  color: white;
  border-radius: 6px;
  cursor: pointer;
}
#modal-ok:hover {
  background-color: #C8CE2A;
}