nav a {
    text-decoration: none;
    color: #ccc;
    font-weight: bold;
    transition: color 0.3s ease;
  }

  nav a:hover {
    color: #fff;
  }

  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    padding: 40px;
    transition: all 0.3s ease;
  }

  .card {
    background: #111;
    border: 2px solid #333;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease, grid-column 0.4s, grid-row 0.4s;
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
  }

  .card:hover {
    box-shadow: 0 0 12px #00ff8877;
  }

  .card.open {
    grid-column: span 2;
    grid-row: span 2;
    z-index: 5;
    transform: scale(1.02);
    box-shadow: 0 0 20px #00c4ff88;
  }

  .card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.3s ease;
  }

  .card.open img {
    transform: scale(1.05);
  }

  .card .title {
    padding: 12px;
    font-size: 16px;
    background: #1a1a1a;
    border-top: 1px solid #333;
    text-align: center;
    transition: background 0.3s ease;
  }

  .card .content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.4s ease;
    padding: 0 16px;
  }

  .card.open .content {
    max-height: 500px;
    opacity: 1;
    padding: 16px;
  }

  .examples {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
    transition: opacity 0.3s ease;
  }

  .examples img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid #444;
    transition: transform 0.3s ease;
  }

  .examples img:hover {
    transform: scale(1.1);
  }

  .modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.4s ease;
}

.modal.show {
  display: flex;
  animation: fadeIn 0.4s ease forwards;
}

#modal-img {
  max-width: 90%;
  max-height: 90%;
  border: 4px solid #00ff88;
  border-radius: 12px;
  box-shadow: 0 0 20px #00ff88;
  transform: scale(0.85);
  opacity: 0;
  transition: all 0.4s ease;
}

.modal.show #modal-img {
  transform: scale(1);
  opacity: 1;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}