html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
}

body {
  position: relative;
}

.slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  opacity: 0;
  transition: opacity 1s ease;
  user-select: none;
  -webkit-user-drag: none;
  background: #000;
}

.slide.is-visible {
  opacity: 1;
}

.audio-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 5;
  width: 56px;
  height: 56px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.audio-toggle img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}