body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      background: #fafafa;
      color: #333;
      line-height: 1.6;
    }

    header {
      background: #ffffff;
      border-bottom: 1px solid #eee;
      padding: 20px;
      text-align: center;
    }

    header img {
      max-width: 260px;
    }

    nav {
      margin-top: 10px;
    }

    nav a {
      margin: 0 12px;
      text-decoration: none;
      color: #555;
      font-weight: bold;
    }

    section {
      padding: 60px 20px;
      max-width: 1100px;
      margin: auto;
    }

    h1, h2 {
      text-align: center;
      margin-bottom: 20px;
    }

    .intro {
      text-align: center;
      max-width: 800px;
      margin: auto;
      font-size: 18px;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .card {
      background: #fff;
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.05);
      text-align: center;
    }

    .card img {
      max-width: 100%;
      border-radius: 6px;
    }

    .btn {
      display: inline-block;
      margin-top: 15px;
      padding: 10px 20px;
      background: #6c63ff;
      color: #fff;
      text-decoration: none;
      border-radius: 4px;
      font-weight: bold;
    }

    .btn:hover {
      background: #584fe0;
    }

    .about {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 30px;
      align-items: center;
    }

    .about img {
      max-width: 100%;
      border-radius: 10px;
    }

    footer {
      background: #ffffff;
      border-top: 1px solid #eee;
      text-align: center;
      padding: 20px;
      font-size: 14px;
      color: #777;
    }

    @media(max-width: 768px) {
      .about {
        grid-template-columns: 1fr;
        text-align: center;
      }
    }