body,
html {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background-color: black;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

#player {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 100%; /* full width */
  height: 100%; /* full height */
  transform: translate(-50%, -50%);
  z-index: 1000;
}

#endImage {
  position: fixed;
  top: 0; /* top-left corner */
  left: 0;
  width: 100vw; /* full viewport width */
  height: 100vh; /* full viewport height */
  object-fit: cover; /* maintain aspect ratio, crop if necessary */
  z-index: 1001;
  opacity: 0;
  transition: opacity 15s ease; /* slow fade over 15 seconds */
}