html, body {
      margin: 0;
      height: 150%;
      font-family: 'Segoe UI', sans-serif;
      background: linear-gradient(to bottom, #dcdcdc, #000000);
      color: #fff;
      display: flex;
      flex-direction: column;
    }

    header {
      background-color: #222;
      color: white;
      padding: 1rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    header h1 {
      margin: 0;
      font-size: 1.8rem;
    }

    nav a {
      color: white;
      text-decoration: none;
      margin-left: 1.5rem;
      font-weight: bold;
    }

    h2 {
      color: red;
    }

    p {
      color: black;
    }

    .wiki-container {
      display: flex;
      width: 100%;
      max-width: 1500px;
      padding: 1rem;
      flex-grow: 1;
      align-items: flex-start;
    }

    .categories {
      width: 500px;
      background-color: #111;
      padding: 1rem;
      border-radius: 10px;
      margin-right: 2rem;
      box-shadow: 0 0 10px rgba(0,0,0,0.5);
      align-self: flex-start;
      display: flex;
      flex-direction: column;
    }

    .categories h2 {
      font-size: 1.4rem;
      margin-bottom: 1rem;
    }

    .categories ul {
      list-style: none;
      padding: 0;
      margin: 0 0 1rem 0;
      flex-grow: 0;
    }

    .categories li {
      margin-bottom: 1rem;
    }

    .categories a {
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      display: block;
      padding: 0.5rem;
      background-color: #333;
      border-radius: 5px;
      transition: background-color 0.2s ease;
      cursor: pointer;
    }

    .categories a.active, .categories a:hover {
      background-color: #0077ff;
    }

    .content {
      flex-grow: 1;
      background-color: #111;
      border-radius: 10px;
      padding: 1.5rem;
      box-shadow: 0 0 10px rgba(0,0,0,0.5);
      max-height: 80vh;
      overflow-y: auto;
    }

    .content h2 {
      margin-top: 0;
      margin-bottom: 1rem;
    }

    .content p {
      line-height: 1.5;
      font-size: 1.1rem;
      color: #ddd;
    }

    footer {
      background-color: #222;
      color: #ccc;
      text-align: center;
      padding: 2rem;
      margin-top: auto;
    }

    @media (max-width: 768px) {
      .wiki-container {
        flex-direction: column;
      }

      .categories {
        width: 100%;
        margin-bottom: 2rem;
        box-shadow: none;
      }

      .content {
        max-height: none;
      }
    }
  .dropdown {
    display: inline-block;
    position: relative;
  }

  .dropdown-content {
    display: none;
    position: absolute;
    background-color: #1e1e1e;
    min-width: 160px;
    z-index: 1;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  }

  .dropdown-content a {
    display: block;
    padding: 10px;
    color: white;
    text-decoration: none;
  }

  .dropdown-content a:hover {
    background-color: #333;
  }