@font-face {
  font-family: "spongebob";
  src: url("SpongeboyMebob.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}

* {
  font-family: "spongebob", cursive;
  box-sizing: border-box;
}

/*BACKGROUND*/

* {
  margin: 0;
  padding: 0;
}
.wrapper {
  height: 200%;
  width: 100%;
  background: linear-gradient(180deg, #04fafd, 5%, #119dff, 50%, #030423);
  position: absolute;
}

.wrapper .bubble {
  height: 60px;
  width: 60px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 50px;
  position: absolute;
  top: 10%;
  left: 10%;
  animation: 4s linear infinite;
}
div .dot {
  height: 10px;
  width: 10px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.5);
  position: absolute;
  top: 20%;
  right: 20%;
}
.wrapper .bubble:nth-child(1) {
  top: 20%;
  left: 20%;
  animation: animate 8s linear infinite;
}
.wrapper .bubble:nth-child(2) {
  top: 60%;
  left: 80%;
  animation: animate 10s linear infinite;
}
.wrapper .bubble:nth-child(3) {
  top: 40%;
  left: 40%;
  animation: animate 3s linear infinite;
}
.wrapper .bubble:nth-child(4) {
  top: 66%;
  left: 30%;
  animation: animate 7s linear infinite;
}
.wrapper .bubble:nth-child(5) {
  top: 90%;
  left: 10%;
  animation: animate 9s linear infinite;
}
.wrapper .bubble:nth-child(6) {
  top: 30%;
  left: 60%;
  animation: animate 5s linear infinite;
}
.wrapper .bubble:nth-child(7) {
  top: 70%;
  left: 20%;
  animation: animate 8s linear infinite;
}
.wrapper .bubble:nth-child(8) {
  top: 75%;
  left: 60%;
  animation: animate 10s linear infinite;
}
.wrapper .bubble:nth-child(9) {
  top: 50%;
  left: 50%;
  animation: animate 6s linear infinite;
}
.wrapper .bubble:nth-child(10) {
  top: 45%;
  left: 20%;
  animation: animate 10s linear infinite;
}
.wrapper .bubble:nth-child(11) {
  top: 10%;
  left: 90%;
  animation: animate 9s linear infinite;
}
.wrapper .bubble:nth-child(12) {
  top: 20%;
  left: 70%;
  animation: animate 7s linear infinite;
}
.wrapper .bubble:nth-child(13) {
  top: 20%;
  left: 20%;
  animation: animate 8s linear infinite;
}
.wrapper .bubble:nth-child(14) {
  top: 60%;
  left: 5%;
  animation: animate 6s linear infinite;
}
.wrapper .bubble:nth-child(15) {
  top: 90%;
  left: 80%;
  animation: animate 9s linear infinite;
}
@keyframes animate {
  0% {
    transform: scale(0) translateY(0) rotate(70deg);
  }
  100% {
    transform: scale(1.3) translateY(-100px) rotate(360deg);
  }
}

/*CARDS*/
p,
h1,
h3 {
  text-align: center;
  margin: 0.5rem;
}
.button-container,
.text-container {
  text-align: center;
  margin: 1rem;
}

.text-container span {
  color: white;
  font-size: large;
}

button {
  padding: 1rem;
  width: 200px;
  border-radius: 10px;
  font-size: medium;
}

button:hover {
  background-color: #030423;
  color: white;
}
.cards {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: center;
}

.card-img {
  height: 100px;
  width: 150px;
  border-radius: 5px;
}

/*FLIP CARDS*/
/* entire container, keeps perspective */
.flip-container {
  perspective: 1000px;
  margin: 1rem;
}
/* flip the pane when hovered */
.flip-container.visible .flipper,
.flip-container.hover .flipper {
  transform: rotateY(180deg);
}

.flip-container,
.front,
.back {
  height: 100px;
  width: 150px;
}

.flip-container:hover {
  cursor: url("Spongebob.cur"), auto;
  /* cursor: pointer; */
}

/* flip speed goes here */
.flipper {
  transition: 0.6s;
  transform-style: preserve-3d;

  position: relative;
}

/* hide back of pane during swap */
.front,
.back {
  backface-visibility: hidden;

  position: absolute;
  top: 0;
  left: 0;
}

/* front pane, placed above back */
.front {
  z-index: 2;
  /* for firefox 31 */
  transform: rotateY(0deg);
}

/* back, initially hidden pane */
.back {
  transform: rotateY(180deg);
}

@media (max-width: 480px) {
  .card-img {
    height: 50px;
    width: 75px;
  }

  .flip-container,
  .front,
  .back {
    height: 30px;
    width: 50px;
  }
}