h1 {
      text-align: center;
      font-size: 2.2rem;
      color: #d84315;
      margin-bottom: 1.5rem;
    }

    h2.difficulty-title {
      font-size: 1.6rem;
      color: #5d4037;
      border-left: 6px solid #ffd54f;
      padding-left: 12px;
      margin-top: 3rem;
    }

    h3.category-title {
      font-size: 1.3rem;
      color: #6d4c41;
      margin-top: 5.5rem;
      margin-bottom: 0.5rem;
    }

    .collection-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.2rem;
      margin-top: 1rem;
    }

    .collection-card {
      background: #fff;
      border-radius: 15px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.08);
      overflow: hidden;
      text-align: center;
      transition: transform 0.2s;
    }

    .collection-card:hover {
      transform: translateY(-4px);
    }

    .collection-card img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    .collection-card h4 {
      margin: 1rem 0 0.5rem;
      font-size: 1.1rem;
      color: #5d4037;
    }

    .collection-card a {
      text-decoration: none;
    }

    .collection-card .view-button {
      display: inline-block;
      margin: 1rem;
      padding: 0.5rem 1.2rem;
      background: #f06292;
      color: white;
      text-decoration: none;
      border-radius: 25px;
      font-weight: bold;
      transition: background 0.3s;
    }

    .collection-card .view-button:hover {
      background: #ec407a;
    }

    .see-all {
      text-align: center;
      margin-top: 1.5rem;
    }

    .see-all a {
      display: inline-block;
      font-size: 1rem;
      color: #d84315;
      background-color: #ffecb3;
      padding: 0.6rem 1.3rem;
      border-radius: 20px;
      font-weight: bold;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .see-all a:hover {
      background-color: #ffe082;
      transform: scale(1.05);
    }

    .collection-card.see-more-card {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 120px;
    }

    .collection-card.see-more-card .view-button {
      display: block;
      text-align: center;
      margin: 0 auto;
      
      transition: background 0.3s;
    }

    .collection-card.see-more-card .view-button:hover {
      background: #ffe082;
    }

    @media (max-width: 600px) {
      h1 {
        font-size: 1.6rem;
      }
    }