.ai-course-section {
    padding: 40px 30px;
    background: linear-gradient(180deg, #f6f9fc 0%, #e4e4e4 100%);
  }

  .ai-course-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 220px;
    color: white;
    background-size: cover;
    background-position: top;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    text-align: center;
  }

  .ai-course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  }

  .ai-title-band {
    width: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    padding: 12px;
    text-align: center;
  }

  .ai-title-band h5 {
    font-weight: 600;
    margin-bottom: 10px;
    color: #fff;
  }

  .ai-cta-btn {
    background: linear-gradient(145deg, #ffffff, #e6e6e6);
    color: #007bff;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    padding: 8px 22px;
    box-shadow: 0 4px 0 #007bff, 0 6px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.25s ease-in-out;
  }

  .ai-cta-btn:hover {
    transform: translateY(2px);
    box-shadow: 0 2px 0 #0056b3, 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(145deg, #f8f9fa, #ffffff);
    color: #0056b3;
  }

  .ai-cta-btn:active {
    transform: translateY(4px);
    box-shadow: 0 1px 0 #004080 inset;
  }