*{
    margin: 0px;
    padding: 0px;
    
}
.page{
    margin: 0px;
    padding: 0px;
}
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0px;
	padding: 0px;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}
/* start style */
body{
  height: 100vh;
  background: url('../image/patern.jpg') repeat;
}
.header{
    
    height: 300px;
    padding-top: 200px;
    
}
.container{
    width: 1200px;
    margin: 0px auto;
    
}
.header .title{
    display: flex;
    background-color: #009fb1;
    align-items: center;
    border-radius: 100px;
    position: relative;
    box-shadow: 5px 5px 25px rgb(0, 0, 0);
}

.header .title img{
    height: 350px;
    border-radius: 5px;
    position: absolute;
    right: -30px;
    box-shadow: 5px 5px 25px black;
}
.header .title h2{
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    font-style: normal;
    font-size: 48px;
    z-index: 2;
    padding: 50px;
    color: #ffffff;
    text-align: center;
    margin-left: 90px;
    
}
/* main */

.main{
  padding-bottom: 400px;
  min-height: 100%;
}
 .main .btn-box .active {
  color: rgba(0, 0, 0, 0.774);
  border: 2px solid rgba(0, 0, 0, 0.774);
  background: #009fb1;
}
.active {
  display: block;
}
.hidden{
  display: none;
}
.main .btn{
    font-size: 48px;
    background-color: transparent;
    border: none;
    color: #009fb1;
    transition: 0.5s linear;
    cursor: pointer;
    border: 2px solid #009fb1;
    padding: 10px 20px;
    border-radius: 10px;
    background-color: #ffffff;
    margin: 10px;
}
.main .btn:hover{
    color: rgba(0, 0, 0, 0.774);
    border: 2px solid rgba(0, 0, 0, 0.774);
    background: #009fb1;
}
.main .btn-box {
  width: 820px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding-top: 30px;
  padding-bottom: 30px;
  flex-wrap: wrap;
}
/* accordion */



.accordion {
  max-width: 900px; margin: 0 auto;
  margin-top: 80px;
  background-color: #ffffff;
  border-radius: 15px;
  padding: 20px 30px;
}
.accordion h2{
  text-align: center;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-style: normal;
  font-size: 72px;
  padding: 40px 0px;
  color: #00b1c5;
 
}

.accordion .accordion-item{
  margin-bottom: 40px;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-style: normal;
  font-size: 36px;
  
  
}
.accordion .accordion-item1{
  margin-bottom: 40px;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-style: normal;
  font-size: 36px;
  
  
}

.accordion__heading {
  display: block; position: relative; cursor: pointer;
  padding: 20px 45px; margin: 0;
  background: #00b1c5;
  color: white;
  border-radius: 10px;
  transition: 0.5s linear;
}
.accordion__heading:hover{
  background-color: #008b9b;
  color: #ebebeb;
}

.accordion__heading:after, .accordion__heading:before {
  content: ""; position: absolute;
  width: 12px; height: 3px;
  top: 50%; right: 20px;
  background: white;
  transition: all 0.1s;
}

.accordion__checkbox:checked~.accordion__heading:before {
  transform: rotate(90deg);
  opacity: 0;
  transition: all 0.1s;
}

.accordion__heading:after {
  transform: rotate(90deg);
  transition: all 0.1s;
}

.accordion__checkbox:checked~.accordion__heading:after {
  transform: rotate(180deg);
}
.accordion__checkbox:checked~.accordion__heading{
  background-color: #008b9b;
  color: #ebebeb;
}

.accordion__checkbox {
  display: none; position: absolute; left: -9999em;
}

.accordion__checkbox:checked~.accordion__content {
  max-height: 1000px;
  transition: all 1s;
  margin-top: -20px;
  padding-top: 20px;
  padding: 30px 15px 20px 15px;
}

.accordion__content {
  max-height: 0; overflow: hidden; padding: 0 15px;
  transition: all 0.5s;
  background-color: #ffffff;
  margin-top: -20px;
  padding: 0px 15px;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}






/* audio */


.audio-player .audio-player {
  max-width: 400px;
  margin: 20px auto;
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.audio-player audio
{
  margin-bottom: 20px;
}
.audio-player h2 {
  margin-top: 0;
  color: #00b1c5;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 34px;
}

.audio-player .playlist {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.audio-player .playlist li {
  cursor: pointer;
  padding: 10px;
  background-color: #c4c4c438;
  border-radius: 4px;
  margin-bottom: 5px;
  transition: background-color 0.3s ease;
  color: #00b1c5;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 26px;
  transition: 0.5s linear all;
}

.audio-player .playlist li:hover {
  background-color: #00b1c5;
  color: #fff;
}

.audio-player .playlist li.selected {
  background-color: #00b1c5;
  color: #fff;
}

.audio-player button {
  margin-top: 10px;
  background-color: #4CAF50;
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.audio-player button:hover {
  background-color: #45a049;
}

.audio-player audio {
  width: 100%;
  margin-top: 20px;
}

.audio-player audio::-webkit-media-controls-panel {
  background-color: #00d3eb;
  border-radius: 8px;
}

.audio-player audio::-webkit-media-controls-play-button,
.audio-player audio::-webkit-media-controls-pause-button {
  color: #4CAF50;
}

.audio-player audio::-webkit-media-controls-volume-slider-container,
.audio-player audio::-webkit-media-controls-mute-button {
  display: none !important;
}

.audio-player audio::-webkit-media-controls-timeline {
  background-color: ;
}

.audio-player audio::-webkit-media-controls-current-time-display,
.audio-player audio::-webkit-media-controls-time-remaining-display {
  color: #333;
}

.audio-player audio::-webkit-media-controls-seek-back-button,
.audio-player audio::-webkit-media-controls-seek-forward-button {
  color: #333;
}
.playlist {
  max-height: 500px; 
  overflow-y: auto; 
}




/* Основний контейнер відео плеєра */
.video-player {
  display: flex;
  align-items: center;
}

/* Стилізація самого відео */
#video-player {
  width: 640px; /* Змініть розміри на ваш власний розмір відео */
  height: 360px;
  margin-bottom: 30px;
}

/* Список відео */
.video-list {
  margin-top: 20px;
  padding: 20px;
  max-height: 300px; 
  overflow-y: auto; 
 

}
.video-list h3{
  border-top: 2px solid #949494;
  display: block;
  margin: 20px 0px 20px 0px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 28px;
  text-align: center;
  color: #00b1c5;
  padding-top: 20px;
}

/* Елементи списку відео */
.video-item {
  cursor: pointer;
  padding: 10px;
  margin-bottom: 10px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 18px;
  border-radius: 50px;
  transition: 0.5s linear all;
}
.video-item i{
  color: #00d3eb;
  margin-right: 10px;
  transition: 0.5s linear all;
  margin-left: 10px;
}

.video-item:hover {
  background-color: #00b1c5;
  color: #fff;
}
.video-item:hover i{
  color: #fff;
}

/* Підсвічення вибраного відео */
.selected {
  background-color: #00b1c5;
  color: #fff;
}


.video-player {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.video-controls {
  margin-top: 10px;
}

.video-controls button {
  padding: 10px 20px;
  background-color: #00d3eb;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.4s linear;
}

.video-controls button:hover {
  background-color: #00b1c5;
}

.video-item ~ a{
  color: black;
  text-decoration: none;
  display: block;
  cursor: pointer;
  padding: 10px;
  margin-bottom: 10px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 18px;
  border-radius: 50px;
  transition: 0.5s linear all;
}


.video-item ~ a:hover {
  background-color: #00b1c5;
  color: #fff;
}

.video-item ~ a i{
  color: #00d3eb;
  margin-right: 10px;
  transition: 0.5s linear all;
  margin-left: 10px;
}

.video-item ~ a:hover i{
  color: #fff;
}

/* style grammar */
.accordion-Grammar .video-list a{
  color: black;
  text-decoration: none;
  display: block;
  cursor: pointer;
  padding: 10px;
  margin-bottom: 10px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: 34px;
  border-radius: 50px;
  transition: 0.5s linear all;
  text-align: center;
}


.accordion-Grammar .video-list a:hover {
  background-color: #00b1c5;
  color: #fff;
}

.accordion-Grammar .video-list a i{
  color: #00d3eb;
  margin-right: 10px;
  transition: 0.5s linear all;
  margin-left: 10px;
}

.accordion-Grammar .video-list a:hover i{
  color: #fff;
}