.fondo-principal {
    background-image: url('../img/fondo-transver.png'); 
    background-size: cover;       
    background-position: center;   
    background-repeat: no-repeat;   
    background-attachment: fixed;   
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
}
.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  overflow: hidden;
  border-radius: 10px;
  background-color: #000;
}

.video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain; 
  background-color: #000;
}

.titulo-actividades {
  font-size: 2.5rem; 
  font-weight: bold; 
  text-align: center; 
  color: #2c3e50; 
  margin-bottom: 20px;
  position: relative;
}
.titulo-actividades::after {
  content: '';
  display: block;
  width: 100px;
  height: 4px;
  background-color: #e74c3c; 
  margin: 10px auto 0 auto;
  border-radius: 2px;
}
.card-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.titulo-actividades {
  font-size: 2.5rem; 
  font-weight: bold; 
  text-align: center; 
  color: #2c3e50; 
  margin-bottom: 20px;
  position: relative;
}

.titulo-actividades::after {
  content: '';
  display: block;
  width: 100px;
  height: 4px;
  background-color: #e74c3c; 
  margin: 10px auto 0 auto;
  border-radius: 2px;
}