* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    background: #f8f9fa;
    color: #333;
  }
  header {
    background: green;
    color: #fff;
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem;
    align-items: center;
  }
  .logo {
    font-size: 1.5rem;
  }
  .nav-links {
    display: flex;
    list-style: none;
  }
  .nav-links li {
    margin-left: 1.5rem;
  }
  .nav-links a {
    color: white;
    text-decoration: none;
  }
  .menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
  }
  main {
    padding: 2rem;
  }
  .hero {
    text-align: center;
    padding: 4rem 0;
  }
  footer {
    text-align: center;
    padding: 1rem;
    background: goldenrod;
    color: white;
    margin-top: 2rem;
  }
  /* Responsive */
  @media (max-width: 768px) {
    .nav-links {
      display: none;
      flex-direction: column;
      background: #222;
      position: absolute;
      top: 60px;
      right: 20px;
      width: 200px;
    }
    .nav-links.active {
      display: flex;
    }
    .menu-toggle {
      display: block;
    }
  }