@media (max-width: 768px) {
  body {
    direction: rtl;
    text-align: right;
  }
}


@media (max-width: 768px) {
  body {
    direction: rtl;
    text-align: right;
    font-size: 18px;
    line-height: 1.8;
    padding: 10px;
    margin: 0;
  }

  img {
    max-width: 100%;
    height: auto;
  }

  #sidebar, .left-column, .right-column {
    display: none;
  }

  .article-body {
    font-size: 18px;
    direction: rtl;
    text-align: right;
  }

  nav ul {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    margin: 0;
  }

  nav ul li {
    margin: 5px 0;
  }

  h1, h2, h3 {
    line-height: 1.4;
  }
}