* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  header {
    background-color: #007BFF;
    color: #fff;
    padding: 20px 0;
    text-align: center;
  }
  
  header h1 {
    font-size: 36px;
    margin-bottom: 10px;
  }
  
  header p {
    font-size: 18px;
  }
  
  h2, h3 {
    color: #007BFF;
  }
  
  h2 {
    margin: 20px 0;
  }
  
  h3 {
    font-size: 20px;
    margin-top: 10px;
  }
  
  ul {
    list-style-type: none;
    padding-left: 20px;
  }
  
  ul li {
    margin-bottom: 5px;
  }
  
  .functionality {
    background-color: #fff;
    border: 1px solid #ddd;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
  }
  
  .functionality:hover {
    background-color: #f1f1f1;
  }
  
  .functionality-heading {
    font-size: 22px;
    cursor: pointer;
  }
  
  .functionality-content {
    display: none;
    padding-top: 10px;
  }
  
  .video-container {
    margin-top: 40px;
    text-align: center;
  }
  
  .video-container video {
    width: 80%;
    max-width: 900px;
    border-radius: 10px;
  }
  
  .image-container {
    margin-top: 20px;
    text-align: center;
  }
  
  .project-image {
    width: 100%;
    max-width: 800px;
    border-radius: 8px;
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.1);
  }
  
  a {
    color: #007BFF;
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    margin-top: 40px;
  }