* {
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f2f2f2;
    line-height: 1.6;
  }
  
  /* HEADER */
  header {
    background: #0a2540;
    color: white;
    padding: 20px 10px;
    text-align: center;
  }
  
  header h1 {
    margin: 0;
    font-size: 1.6rem;
  }
  
  header p {
    font-size: 0.95rem;
  }
  
  /* NAVIGATION */
  nav {
    background: #ffffff;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 10px;
  }
  
  nav a {
    margin: 5px 10px;
    text-decoration: none;
    color: #0a2540;
    font-weight: bold;
    font-size: 0.9rem;
  }
  
  /* SECTIONS */
  section {
    background: white;
    margin: 15px;
    padding: 15px;
    border-radius: 6px;
  }
  
  section h2 {
    color: #0a2540;
    font-size: 1.2rem;
  }
  
  /* IMAGES & VIDEOS */
  .gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .gallery img,
  .gallery video {
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 10px 0;
    border-radius: 6px;
  }
  
  /* PROFILE IMAGE */
  section img {
    max-width: 100%;
    height: auto;
  }
  
  /* FOOTER */
  footer {
    text-align: center;
    padding: 15px;
    font-size: 0.9rem;
  }
  
  /* DESKTOP ENHANCEMENT */
  @media (min-width: 768px) {
    section {
      max-width: 900px;
      margin: 20px auto;
    }
  
    header h1 {
      font-size: 2rem;
    }
  
    nav a {
      font-size: 1rem;
    }
  
    .gallery {
      flex-direction: row;
      flex-wrap: wrap;
      justify-content: center;
    }
  
    .gallery img,
    .gallery video {
      max-width: 400px;
      margin: 10px;
    }

    .drop-text span {
      display: inline-block;
      opacity: 0;
      transform: translateY(-40px);
      animation: dropIn 0.6s ease forwards;
    }
    
    .drop-text.delay span {
      animation-delay: calc(var(--i) * 0.05s + 0.4s);
    }
    
    .drop-text:not(.delay) span {
      animation-delay: calc(var(--i) * 0.05s);
    }
    
    @keyframes dropIn {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .service-section {
      max-width: 900px;
      margin: auto;
      padding: 40px 20px;
    }
    
    .service-section h2 {
      font-size: 2rem;
      margin-bottom: 10px;
    }
    
    .service-section h3 {
      margin-top: 25px;
      color: #333;
    }
    
    .service-list {
      padding-left: 20px;
    }
    
    .service-list li {
      margin-bottom: 8px;
      line-height: 1.6;
    }
    
    .github-btn {
      display: inline-block;
      margin-top: 15px;
      padding: 12px 20px;
      background: #000;
      color: #fff;
      text-decoration: none;
      border-radius: 6px;
    }
    
    .github-btn:hover {
      background: #333;
    }
    
    .service-section {
      max-width: 900px;
      margin: auto;
      padding: 40px 20px;
    }
    
    .service-section h2 {
      font-size: 2rem;
      margin-bottom: 10px;
    }
    
    .service-section h3 {
      margin-top: 25px;
      color: #222;
    }
    
    .service-list {
      padding-left: 20px;
    }
    
    .service-list li {
      margin-bottom: 8px;
      line-height: 1.6;
    }
    
  }