.open-button {
  background: #000000;
  color: white;
  padding: 8px 12px;
  display: inline-block;
}
.popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #0000004f;
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 24px;
  display: none;
}
.popup-container {
  background: #FFFFFF;
  padding: 16px;
  max-width: 500px;
  width: 100%;
  position: relative;
  overflow: auto;
  max-height: 100%;
}
.popup-close {
  position: absolute;
  top: 0;
  right: 0;
  padding: 6px;
  cursor: pointer;
}
.popup-close svg {
  display: block;
}
.popup-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 16px;
}