:root { --time: 0.707s; }

.sponsor-card {
  height:100%;
}

.div.card-title.sponsor-card-title {
  font-size: calc(1.2rem + .6vw);
}


.sponsor-card-copy {
  padding: 0.8rem 0.8rem;
  font-size: calc(0.8rem + .6vw);
}

.sponsor-card-category {
  font-size: calc(0.6rem + .6vw);
  color: #47b2e4;
  padding: 0.8rem 0.8rem;
  padding-top:8px;
}

.img.card-img-top {
    display:block;
    padding-right: calc(var(--bs-gutter-x) / 2);    
    padding-left: calc(var(--bs-gutter-x) / 2);
}

.cards {
  display: grid;
}

.card {
  perspective: 40rem;
}

.card-body {
  display: flex;
  transform-style: preserve-3d;
  transition: var(--time) transform;
  padding:0px;

  .card:hover &, .card:focus & {
    transform: rotateX(-180deg);
  }
}

.card-front, .card-back {
  backface-visibility: hidden;
  min-width: 100%;
}

.card-back {
  transform: rotateX(-180deg) translate(-100%, 0);
  color:#444444;
  padding:0.8rem 0.8rem;
  font-size: calc(0.4rem + .6vw);
}


/* Make it Pretty */


.cards {
  grid-gap: 1.5rem;
  grid-auto-rows: 1fr;
  padding: 3rem;
  background: whitesmoke;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

.card {
  display: flex;
  transition: z-index, transform calc(var(--time) / 4);
  transition-delay: var(--time), 0s;
  text-decoration: none;
  color: inherit;
  z-index: 0;
  
  &:hover {
    transition-delay: 0s;
    z-index: 1;
  }

  &:active {
    transform: scale(0.975);
  }
}

.card-body {
  border-radius: 0.25rem;
  flex: 1;
}

.card-front, .card-back {
  /*@extend .shadow;*/
  display: flex;
  align-items: center;
  background-color: white;
  box-sizing: border-box;
  border-radius: 0.25rem;
}


.card-front {
  font-size: 1.5rem;
}

.shadow {
  box-shadow: 0 -1px 1px rgba(0,0,0,0.04), 
              0 2px 2px rgba(0,0,0,0.04), 
              0 4px 4px rgba(0,0,0,0.04), 
              0 8px 8px rgba(0,0,0,0.04),
              0 16px 16px rgba(0,0,0,0.04); 
}

/* X- Large */
@media (max-width: 1399px) {
  .card-back {
    /*color:olive;*/
    font-size: calc(0.6rem + .6vw);
  }
}

/* Large */
@media (max-width: 1199px) {
  .card-back {
    /*color:red;*/
    font-size: calc(0.5rem + .6vw);
  }
  
}

/* Medium */
@media (max-width: 991px) {
  .card-back {
    /*color:green;*/
    font-size: calc(0.5rem + .6vw);
  }
}


/* Small */
@media (max-width: 767px) {
  .card-back {
    /*color:green;*/
    font-size: calc(0.6rem + .6vw);
  }
}


/*-- X-Small -*/
@media (max-width: 575px) {
  .card-back {
    /*color:blue;*/
    font-size: calc(0.8rem + .6vw);
  }
  
}