* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f0f0;
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: #fff;
  }
  
  .logo {
    display: flex;
    align-items: center;
  }
  
  .logo img {
    width: 40px;
    margin-right: 10px;
  }
  
  .section {
    padding: 50px 20px;
  }
  
  .content {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .welcome-section {
    background-color: #f9f9f9;
  }
  
  .about-section {
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
  }
  
  h2 {
    font-size: 32px;
    margin-bottom: 20px;
  }
  
  p {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 15px;
  }