.premium-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    font-family: 'Noto Sans Bengali', sans-serif;
    background: linear-gradient(to right, #e0f2fe, #f8fafc);
    padding: 60px 20px;
  }

  .premium-card {
    flex: 1;
    min-width: 320px;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    padding: 35px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .premium-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.18);
  }

  .card-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: #3b82f6;
    color: white;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 13px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  }

  .card-instructor {
    background: #10b981;
  }

  .profile-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.15);
    margin-bottom: 15px;
  }

  .cta-button {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    background: #0f172a;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s ease;
  }

  .cta-button:hover {
    background: #1e3a8a;
  }

  .experience-block {
    margin-top: 20px;
    background: #f1f5f9;
    padding: 15px;
    border-radius: 10px;
    color: #334155;
    font-size: 15px;
    line-height: 1.6;
  }

  .testimonial-block {
    margin-top: 10px;
    background: #fef9c3;
    padding: 15px;
    border-radius: 10px;
    color: #78350f;
    font-size: 15px;
    line-height: 1.6;
  }

  .rating {
    margin-top: 15px;
    font-size: 20px;
    color: #facc15;
  }