@import url('https://fonts.googleapis.com/css?family=Lato&display=swap');

* {
  box-sizing: border-box;
}

footer {
  
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: 'Lato', sans-serif;
  margin: 0;
  font-family: "courier new";
  font-size: 15px;
}





.container{
    display:flex;
    width:90vw;
    margin:50px;
}

.panel{
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height:80vh;
    border-radius: 50px;
    flex:0.5;
    position:relative;
    transition: flex 0.5s ease-in;
    color:#fff;
    cursor:pointer;
    margin:10px;
}

.panel h3{
    position:absolute;
    bottom:20px;
    left:20px;
    opacity:0;
}

.panel.active{
    flex:5;
}

.panel.active h3{
    opacity:1;
     transition: opacity 0.4s ease-in 0.4s;
}

@media(max-width:480px){
    .container{
        width:100vw;
    }

    .panel:nth-of-type(4),.panel:nth-of-type(5){
        display:none;
    }
}
    
    
    
    
    

.music-container {
  background-color: #fff;

  display: flex;
  padding: 20px 30px;
  position: relative;
  margin: 100px 0;
  z-index: 10;
}

.img-container {
  position: relative;
  width: 80px;
}

.img-container::after {
  content: '';
  background-color: #fff;
  border-radius: 50%;
  position: absolute;
  bottom: 100%;
  left: 50%;
  width: 20px;
  height: 20px;
  transform: translate(-50%, 50%);
}

.img-container img {
  border-radius: 50%;
  object-fit: cover;
  height: 80px;
  width: inherit;
  position: absolute;
  bottom: 0;
  left: 0;
  animation: rotate 3s linear infinite;

  animation-play-state: paused;
}

.music-container.play .img-container img {
  animation-play-state: running;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.action-btn {
  background-color: #fff;
  border: 0;
  color: #dfdbdf;
  font-size: 17px;
  cursor: pointer;
  padding: 5px;
  margin: 5px;
}

.action-btn.action-btn-big {
  color: #cdc2d0;
  font-size: 17px;
}

.action-btn:focus {
  outline: 0;
}

.music-info {
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 15px 15px 0 0;
  position: absolute;
  top: 0;
  left: 20px;
  width: calc(100% - 40px);
  padding: 10px 10px 10px 150px;
  opacity: 0;
  transform: translateY(0%);
  transition: transform 0.3s ease-in, opacity 0.3s ease-in;
  z-index: 0;
}

.music-container.play .music-info {
  opacity: 1;
  transform: translateY(-100%);
}

.music-info h4 {
  margin: 0;
}

.progress-container {
  background: #fff;
  border-radius: 5px;
  cursor: pointer;
  margin: 10px 0;
  height: 40px;
  width: 100%;
}

.progress {
  background-color: #fe8daa;
  border-radius: 5px;
  height: 100%;
  width: 0%;
  transition: width 0.1s linear;
}

const panels = document.querySelectorAll('.panel');

panels.forEach(panel => {
    panel.addEventListener('click', () => {
        removeActiveClasses();
        panel.classList.add('active');
    })
})

function removeActiveClasses(){
    panels.forEach(panel => {
        panel.classList.remove('active');
    })
}