body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh; 
    text-align: left;
  }
  
  header {
    background-color: #004080;
    color: white;
    padding: 1rem 0;
    text-align: center;
    position: fixed; 
    width: 100%;
    top: 0; 
    z-index: 1000; 
    border-bottom: 1px solid #eee;
  }
  
  header .team-title {
    font-size: 1.5rem;
    text-align: center;
    font-weight: bold;
  }
  
  nav {
    display: flex;
    justify-content: space-between; 
    align-items: center; 
    padding: 0 20px; 
  }
  
  nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    margin: 0;
  }
  
  nav ul li {
    margin: 0 1rem;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  nav ul li a:hover {
    text-decoration: underline;
  }
  
  section {
    margin: 2rem auto;
    max-width: 900px;
    padding: 0 1rem;
    margin-bottom: 2rem;
  }
  
  main {
    padding: 2rem;
    flex: 1;
    max-width: 1200px;
    margin: 0 auto; 
    width: 100%; 
    flex-direction: column;
    display: flex;
    justify-content: center;
  }
  
  h1, h2 {
    color: #004080;
  }
  
  p {
    margin: 0.5rem 0;
  }
  
  #video-demo iframe {
    display: block;
    margin: 1rem auto;
    border: none;
  }
  
  #development-team p {
    margin: 0.5rem 0;
  }
  
  footer {
    background-color: #004080;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    width: 100%;
    bottom: 0;
  }
  
  .markdown-body img {
    max-width: 100%;
    height: auto;
  }
  
  .markdown-body.markdown-block {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    max-width: 900px;
    width: 100%;
    margin: 2rem auto;
    text-align: left;
  }
  
  .responsive-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem auto;
  }