.uiextra-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}
.uiextra-popup {
  background: #ffffff;
  padding: 18px;
  border-radius: 8px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  position: relative;
  max-height: 90vh;
  overflow: auto;
}
.uiextra-popup img { max-width: 100%; height: auto; display:block; }
.uiextra-close {
  position: absolute;
  right: 8px;
  top: 8px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: #fff;
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
}