/* 3D Flip Card Animation */
.flip-card-container {
  perspective: 1000px;
  height: 320px;
  position: relative;
  outline: none;
  border: none;
  display: block;
  cursor: pointer;
}

.flip-card {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  cursor: pointer;
}

.flip-card-container:hover .flip-card,
.flip-card-container:focus-within .flip-card,
.flip-card-container.is-active .flip-card {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-xl);
  box-shadow: 0 8px 24px rgba(184, 57, 158, 0.12);
  border: 2px solid var(--color-border);
}

.flip-card-front {
  background: white;
  z-index: 2;
}

.flip-card-back {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: white;
  transform: rotateY(180deg);
  padding: var(--space-xl);
  text-align: center;
}

.flip-card-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  box-shadow: 0 6px 16px rgba(184, 57, 158, 0.3);
}

.flip-card-number span {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
}

.flip-card-title {
  font-size: 1.8rem;
  color: var(--color-accent-primary);
  font-weight: 700;
  text-align: center;
  margin: 0;
}

.flip-card-back p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin: 0;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .flip-card-container {
    height: 280px;
  }
  
  .flip-card-number {
    width: 64px;
    height: 64px;
  }
  
  .flip-card-number span {
    font-size: 2rem;
  }
  
  .flip-card-title {
    font-size: 1.4rem;
  }
  
  .flip-card-back p {
    font-size: 1rem;
  }
}