body {
    background: linear-gradient(135deg, #000814 0%, #001d3d 70%, #003566 100%);
    color: #fff;
    font-family: 'Exo 2', sans-serif;
    position: relative;
    overflow-x: hidden;
  }

  body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
      radial-gradient(circle at 20% 30%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 80% 70%, rgba(144, 224, 239, 0.1) 0%, transparent 50%);
    z-index: -1;
  }

  .specialty-section {
    padding-top: 130px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
  }

  .specialty-section h1 {
    color: #00b4d8;
    font-size: 3.2em;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: 0 0 15px rgba(0, 180, 216, 0.5);
    position: relative;
    display: inline-block;
  }

  .specialty-section h1::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00b4d8, transparent);
  }

  .subtitle {
    color: #90e0ef;
    font-size: 1.3em;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
  }

  .courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin: 0 20px 80px;
  }

  .course-card {
    background: rgba(0, 29, 61, 0.7);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 180, 216, 0.2);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
  }

  .course-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #00b4d8, #90e0ef, #00b4d8);
    transform: scaleX(0);
    transition: transform 0.4s ease;
  }

  .course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 180, 216, 0.3);
    border-color: rgba(0, 180, 216, 0.5);
  }

  .course-card:hover::before {
    transform: scaleX(1);
  }

  .course-image {
    height: 200px;
    overflow: hidden;
    position: relative;
  }

  .course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .course-card:hover .course-image img {
    transform: scale(1.1);
  }

  .course-level {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 29, 61, 0.8);
    color: #90e0ef;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: bold;
    border: 1px solid #00b4d8;
  }

  .course-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }

  .course-content h2 {
    color: #90e0ef;
    font-size: 1.6em;
    margin-bottom: 15px;
    text-align: left;
  }

  .course-content p {
    color: #ccc;
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: left;
    flex-grow: 1;
  }

  .course-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid rgba(0, 180, 216, 0.2);
  }

  .course-duration {
    color: #90e0ef;
    font-weight: bold;
    display: flex;
    align-items: center;
  }

  .course-duration i {
    margin-right: 5px;
    color: #00b4d8;
  }

  .course-price {
    background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
    color: white;
    padding: 8px 18px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.2em;
    box-shadow: 0 5px 15px rgba(0, 180, 216, 0.3);
  }

  .specialty-highlights {
    background: rgba(0, 53, 102, 0.5);
    border-radius: 15px;
    padding: 40px;
    margin: 60px 20px;
    border: 1px solid rgba(0, 180, 216, 0.3);
    text-align: left;
  }

  .specialty-highlights h2 {
    color: #00b4d8;
    font-size: 2em;
    margin-bottom: 25px;
    text-align: center;
  }

  .highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
  }

  .highlight-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
  }

  .highlight-icon {
    background: rgba(0, 180, 216, 0.2);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    flex-shrink: 0;
  }

  .highlight-icon i {
    color: #00b4d8;
    font-size: 1.5em;
  }

  .highlight-text h3 {
    color: #90e0ef;
    margin-bottom: 8px;
    font-size: 1.2em;
  }

  .highlight-text p {
    color: #ccc;
    line-height: 1.6;
  }

  .advanced-courses {
    margin: 80px 20px;
  }

  .advanced-courses h2 {
    color: #00b4d8;
    font-size: 2.5em;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 2px;
  }

  .advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
  }

  .advanced-card {
    background: rgba(0, 29, 61, 0.8);
    border-radius: 10px;
    padding: 25px;
    text-align: left;
    border-left: 4px solid #00b4d8;
    transition: all 0.3s ease;
  }

  .advanced-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 180, 216, 0.2);
    border-left-color: #90e0ef;
  }

  .advanced-card h3 {
    color: #90e0ef;
    font-size: 1.4em;
    margin-bottom: 15px;
  }

  .advanced-card p {
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 15px;
  }

  .advanced-price {
    color: #00b4d8;
    font-weight: bold;
    font-size: 1.2em;
  }

  @media (max-width: 768px) {
    .specialty-section {
      padding-top: 100px;
    }
    
    .specialty-section h1 {
      font-size: 2.5em;
    }
    
    .courses-grid {
      grid-template-columns: 1fr;
      margin: 0 15px 60px;
    }
    
    .specialty-highlights {
      padding: 25px;
      margin: 40px 15px;
    }
    
    .highlight-grid {
      grid-template-columns: 1fr;
    }
  }