* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html{
  box-sizing: border-box; /*Cuando agregemos un width a un elemento y luego se añada un padding, no modifique el tamaño del elemento */
  font-size: 62.5%; /*corresponde a 10px el elemento raiz*/
}

body {
  background-color: #143a3f;
  text-align: center;
  justify-content: center;
  font-family: "Raleway", sans-serif;
  color: white;
  height: 100vh;
}

.main-container {
  background-color: #80547B;
  width: 80%;
  height: 90vh;
  margin: 15px auto 30px auto;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

h1,
h2 {
  padding: 30px;
  margin: 0%;
  letter-spacing: 15px;
  line-height: 30px;
  font-size: 30px;
}

header h1 {
  margin-top: 5px;
}

.container-button {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 40px;
  margin-bottom: auto;
}

.container-image {
  width: 300px;
}

.playButton{
  height: 60px;
  width: 250px;
  margin: 10px auto;
  margin: auto 0;
  border-radius: 20px;
  font-size: 15pt;
  font-weight: 800;
  letter-spacing: 0.3cm;
  color: #ffffff;
  background-color: rgb(44, 65, 83);
  border-style: none;
  cursor: pointer;
}

button:hover{
  background-color: #143a3f ;
}

button:active{
  background-color: #1691a1;
}

.screen-two section {
  cursor: pointer;
  perspective: 800px; 
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-gap: 2.5rem;
  margin-bottom: 20px;
}

.container-card {
  
  position: relative;
  cursor: pointer; 
  width: 10rem;
  height: 12rem;
  border-radius: 15px;
  transform-style: preserve-3d;
  transition: all 1.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.container-card img {
  width: 100px;
  height: 100px;
}

.front,
.back {
  position: absolute;
  cursor: pointer;
}


.front {
  
  pointer-events: none;
  background-color: #143a3f;
  border-radius: 20px;
  align-content: center;
  backface-visibility: hidden;
}

.back {
  pointer-events: none;
  width: 100px;
  height: 120px;
  background-color: aliceblue;
  border-radius: 20px;
  align-content: center;
}

.back img{
  width: 80px;
}

.toggleCard {
  transform: rotateY(180deg);
}

.screen-three{
  width: 100%;
}

.screen-three h2 {
  padding: 30px;
  margin: 0%;
  letter-spacing: 15px;
  line-height: 30px;
  font-size: 30px;
}

.playButton2{
  align-items:center;
  margin: 10px;
  height: 60px;
  padding: 5px ;
  border-radius: 20px;
  font-size: 15pt;
  font-weight: 800;
  letter-spacing: 0.3cm;
  color: #ffffff;
  background-color: rgb(44, 65, 83);
  border-style: none;
  cursor: pointer;
}

.screen-three img{
  width: 200px;
}

footer img{
  
   width: 200px;
}




@media screen and (max-width: 1024px) {
}

@media screen and (max-width: 768px) {

  .main-container {
    width: 95%;
    height: 100vh;
  }

  .container-card {
    width: 12rem;
    height: 11rem;
    
  }
  

  .container-image {
    width: 200px;
  }

  .play-button {
    width: 150px;
    letter-spacing: 8px;
  }

  header h1,
  h2 {
    font-size: 25px;
  }

  .screen-two section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 2.5rem;
    margin-bottom: 20px;
  }

  .container-card:nth-child(17){
    grid-column: 2 / 3;

  }
  .container-card:nth-child(18){
    grid-column: 3 / 5;
   
  }

}

@media screen and (max-width: 576px) {
  .main-container {
    width: 90%;
    height: 100vh;
    
  }

  .back {
    width: 70px;
    height: 80px;
  }
  
  .back img{
    width: 30px;
    height: 10px;
  }

  .front svg{
    width: 70px;
    height: 80px;
  }

  .container-card {
    width: 7rem;
    height: 9rem;
    
  }
  
  .container-card img {
    width: 55px;
    height: 80px;
  }
  
  
  .screen-two section {
    grid-gap: 2rem;
  }


}

@media screen and (max-width: 320px) {
  .main-container {
    width: 95%;
    height: 100vh;
  }

  .back {
    width: 60px;
    height: 70px;
  }
  
  .back img{
    width: 20px;
    height: 10px;
  }

  .front svg{
    width: 60px;
    height: 70px;
  }

  .container-card {
    width: 6rem;
    height: 8rem;
    
  }
  
  .container-card img {
    width: 40px;
    height: 70px;
  }
  
  
  .screen-two section {
    grid-gap: 2rem;
  }

  .screen-two section {
    grid-gap: 1rem;
    margin-bottom: 20px;
  }

}