.modal-window {
  position: fixed;
  background-color: rgba(255, 255, 255, 0.5);
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 999;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
}
.modal-window:target {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}
.modal-window > div {
  width: 400px;
  position: absolute;
  top: 54%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 2em;
  background: linear-gradient(0deg, #ffffff, #ffffff),
    linear-gradient(180deg, #ffeace -28.26%, #fff5e9 28.41%);
  border-radius: 10px;
  box-shadow: 0px 10px 25px rgba(151, 143, 175, 0.08),
    0px 10px 25px rgba(151, 143, 175, 0.08);
}
.modal-window header {
  font-weight: bold;
}
.modal-window h1 {
  font-size: 150%;
  margin: 0 0 15px;
}

.modal-close {
  color: #aaa;
  line-height: 50px;
  font-size: 80%;
  position: absolute;
  right: 0;
  text-align: center;
  top: 0;
  width: 70px;
  text-decoration: none;
}
.modal-close:hover {
  color: black;
}