@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
}

html {
  font-size: 62.5%;
}

body {
  background-color: #212529;
  color: #fff;
  padding: 3.2rem 3.2rem 0;
  font-size: 1.6rem;
  font-family: 'Poppins', sans-serif;
  text-align: center;
  height: 100vh;
}

.description {
  margin-top: 0.8rem;
}

.attempt {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 5rem;
  padding: 0 0.8rem;
}

.progress-container {
  width: 100%;
  background-color: #fff;
  border-radius: 1rem;
  overflow: hidden;
  margin-top: 0.4rem;
}

.attempt-text {
  font-size: 1.2rem;
  font-weight: 600;
}

.progress-bar {
  width: 0%;
  background-color: #333;
  height: 2rem;
  transition: width 0.3s ease;
}

.try-btn {
  font-size: 2.4rem;
  font-family: inherit;
  text-align: center;
  border: none;
  padding: 0.8rem 4.8rem;
  margin-top: 2.4rem;
  background-color: #fff;
  border-radius: 1.6rem;
  font-weight: 500;
}

.cards-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 4.8rem;
  gap: 1.6rem;
  justify-items: center;
}

.card {
  height: 12.4rem;
  width: 9.6rem;
  perspective: 100rem;
  cursor: pointer;
}

.card-inner {
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
  position: relative;
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 1rem;
  overflow: hidden;
}

.card-front {
  background-color: #dee2e6;
  transform: rotateY(180deg);
}

.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front img {
  position: absolute;
  width: 6.4rem;
  transform: translate(-50%, 50%);
}

.card-back img {
  width: 9.6rem;
}