.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
  }

  @media (max-width: 900px) {
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 600px) {
    .cards-grid { grid-template-columns: 1fr; }
  }

  .flip-card {
    background: transparent;
    width: 100%;
    height: 280px;
    perspective: 1200px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
  }

  .flip-card.is-flipped .flip-card-inner,
  .flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
  }

  .flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    overflow: hidden;
  }

  .flip-card-front {
    background: linear-gradient(135deg, #e8e0f0, #d8d0e8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
  }

  .flip-card-front svg {
    width: 100%;
    max-width: 280px;
    height: auto;
  }

  .flip-hint {
    margin-top: 10px;
    font-size: 0.85rem;
    color: #6c6c8c;
    display: none;
  }

  .flip-card-back {
    background: linear-gradient(135deg, #a6e3a1, #94e2d5);
    transform: rotateY(180deg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #1e1e2e;
  }

  .flip-card-back h3 { margin-bottom: 12px; font-size: 1.1rem; }
  .flip-card-back p  { font-size: 0.9rem; line-height: 1.5; }

@media (max-width: 1300px) {
  .flip-hint {
    display: block;
  }
}