body {
  font-family: Arial, sans-serif;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: #f4f4f9;
}

#presentation {
	width: 100%;
	max-width: 1920px;
	height: 100%;
	overflow: hidden;
	position: relative;
	background: #ffffff;
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
	border-radius: 8px;
	display: flex;
	align-items: flex-start;
	justify-content: center;
	overflow-y: scroll;
}

.slide {
	width: 100%;
	display: none;
	text-align: left;
	padding: 0px;
	margin-top: 2em;
	margin-left: 10%;
	margin-right: 10%;	
}

.slide.active {
  display: block;
}

	.adm-hide-opacity{		
		opacity: 0;
		transition: opacity 0.5s ease-out;
		-webkit-transition: opacity 0.5s;
	}
	.adm-show-opacity{
		opacity: 1;
		transition: opacity 0.5s ease-out;
		-webkit-transition: opacity 0.5s;
	}


.slide.chapter{
    margin: auto;
    text-align: center;
    padding-left: 10%;
    padding-right: 10%;
}

.chapter-header{
	border-bottom: 1px dotted gray;
    display: block;
    position: relative;
	padding-bottom: 3px;
	
}

.chapter-header p{
	margin:auto;
}


footer {
    display: flex;
    margin-top: 1em;
    margin-bottom: 1em;
    flex-wrap: wrap;
    text-align: center;
    column-gap: 2em;
    align-items: center;
    justify-content: space-around;
}

footer p{
	margin:auto;
}

#controls button {
	background-color: #007BFF;
    color: white;
    border: none;
    padding: 7px 10px;
    font-size: 13px;
    margin: 7px;
    line-height: 13px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#controls button:hover {
  background-color: #0056b3;
}



#audio-progress {
  width: 100%;
  max-width: 300px;
  margin: 10px 0;
  cursor: pointer;
  appearance: none;
  background: #ccc;
  border-radius: 5px;
  height: 5px;
}

#audio-progress::-webkit-slider-thumb {
  appearance: none;
  width: 15px;
  height: 15px;
  background: #007BFF;
  border-radius: 50%;
  cursor: pointer;
}

#audio-progress::-moz-range-thumb {
  width: 15px;
  height: 15px;
  background: #007BFF;
  border-radius: 50%;
  cursor: pointer;
}





/* PAGINATION */
/*
#pagination {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.dot {
  width: 10px;
  height: 10px;
  margin: 0 5px;
  background-color: #ccc;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.3s;
}

.dot.active {
  background-color: #007BFF;
}
*/
/* <-- pagination  */