* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
  }
    
  body {
    background: #fefefe;
    font-family: sans-serif;
  }
  
  .container {
    width: 90%;
    margin: 50px auto;
  }
  .heading {
    text-align: center;
    font-size: 30px;
    margin-bottom: 50px;
  }

  
  #subtitulo
  {
    margin-top: 20px;
    text-align: center;
    font-size: 30px;
    margin-bottom: 0px;
    background: linear-gradient(to right, #ff416c, #ff4b2b);
    color: white;
  }
  

  .contenido-principal__resumen 
  {
    width: 80%;
    text-align: center;
    font-size: 30px;
    margin-bottom: 0px;
    margin:auto;
    margin-top: 30px;
    margin-bottom: 30px;
    font-style: italic;
    
  }

  .row {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    flex-flow: wrap;
  }
  
  
  .card {
    width: 20%;
    background: #fff;
    border: 1px solid #ccc;
    margin-bottom: 50px;
    transition: 0.3s;
  }
  
  .card-header {
    text-align: center;
    padding: 50px 10px;
    background: linear-gradient(to right, #ff416c, #ff4b2b);
    color: #fff;
  }
  
  .card-body {
    padding: 30px 20px;
    text-align: center;
    font-size: 18px;
  }
  
  .card-body .btn {
    display: block;
    color: #fff;
    text-align: center;
    background: linear-gradient(to right, #ff416c, #ff4b2b);
    margin-top: 30px;
    text-decoration: none;
    padding: 10px 5px;
  }
  
  .card:hover {
    transform: scale(1.05);
    box-shadow: 0 0 40px -10px rgba(0, 0, 0, 0.25);
  }

  footer
  {
    align-items: center;
    text-align: center;
    margin-top: -100px;
    text-decoration: none;
    position: absolute;
    width: 100%;
    
  }

  footer ul
  {
    list-style-type: none;
  }

  footer li 
  {
    color:black;
    font-size: 20px;
  }

  footer a 
  {
    color: rgb(255, 2, 2);
    margin: 10px;
    font-size: 25px;
    position: relative;
    display: inline;
  }

  #Resumen
  {
    background:linear-gradient(to right, #ff416c, #ff4b2b);
    padding: 10px;
    padding-top: 50px;
    color: white;
    margin-bottom: 20px;
    margin-top: 18px;
    font-size: 14px;
  }

  #disciplinas 
  {
    font-size: 30px;
  }

  /* carrusel*/

  .carousel__contenedor {
    position: relative;
    width: 80%;
    margin: 0 auto;
  }
  
  .carousel__anterior,
  .carousel__siguiente {
    position: absolute;
    display: block;
    width: 30px;
    height: 30px;
    border: none;
    top: calc(50% - 35px);
    cursor: pointer;
    line-height: 30px;
    text-align: center;
    background: none;
    color: rgb(255, 2, 2);
    opacity: 20%;
  }
  
  .carousel__anterior:hover,
  .carousel__siguiente:hover {
    opacity: 100%;
  }
  
  .carousel__anterior {
    left: -30px;
  }
  
  .carousel__siguiente {
    right: -30px;
  }
  
  .carousel__lista {
    overflow: hidden;
  }
  
  .carousel__elemento {
    text-align: center;
  }
  
  .carousel__indicadores .glider-dot {
    display: block;
    width: 30px;
    height: 4px;
    background: rgb(255, 2, 2);
    opacity: .2;
    border-radius: 0;
  }
  
  .carousel__indicadores .glider-dot:hover {
    opacity: .5;
  }
  
  .carousel__indicadores .glider-dot.active {
    opacity: 1;
  }
  



  
  @media screen and (max-width: 1000px) {
    .card {
      width: 40%;
    }
    footer img 
  {
    width: 80%;
  }
  }
  
  @media screen and (max-width: 620px) {
    .container {
      width: 100%;
    }
  
    .heading {
      padding: 20px;
      font-size: 20px;
    }
  
    .card {
      width: 80%;
    }

    .contenido-principal__resumen 
  {
    width: 80%;
    text-align: center;
    font-size: 25px;
    margin-bottom: 0px;
    margin:auto;
    margin-top: 30px;
    margin-bottom: 30px;
    
  }
  
  footer img 
  {
    width: 80%;
  }

  }