#modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

#modal.hidden {
  display: none;
}

.modal-box {
  background: white;
  width: 80%;
  max-width: 900px;
  height: 80%;
  border-radius: 12px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}

.modal-box iframe {
  width: 100%;
  height: 100%;
  border: none;
}

#close-btn {
  position: absolute;
  top: 10px;
  right: 20px;
  cursor: pointer;
  font-size: 26px;
  color: #555;
  font-weight: bold;
}