/* Dark background and text colors */
      body {
        background-color: #121212;
        color: #e0e0e0;
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        margin: 0;
        padding: 0;
      }
      a {
        color: #4ea1d3;
        text-decoration: none;
      }
      a:hover {
        text-decoration: underline;
      }
      .container-lg {
        max-width: 800px;
        margin: 30px auto;
        padding: 20px;
      }
      hr {
        border: 0;
        height: 1px;
        background: #333;
        margin: 30px 0;
      }
      h1, h2, p, ol {
        margin-bottom: 20px;
      }

      /* Link preview card style */
      .link-preview {
        border: 1px solid #444;
        border-radius: 8px;
        padding: 10px;
        max-width: 500px;
        background-color: #222;
        color: #eee;
        display: flex;
        align-items: center;
        gap: 10px;
        cursor: pointer;
        text-decoration: none;
        margin-bottom: 30px;
        transition: background-color 0.3s ease;
      }
      .link-preview:hover {
        background-color: #333;
      }
      .link-preview img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        border-radius: 6px;
      }
      .link-preview-text {
        display: flex;
        flex-direction: column;
      }
      .link-preview-title {
        font-weight: bold;
        font-size: 1.1em;
        margin-bottom: 5px;
      }
      .link-preview-description {
        font-size: 0.9em;
        color: #aaa;
      }