body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #f4f4f4;
      direction: rtl;
    }

    nav {
      background-color: #2c3e50;
      padding: 15px 0;
    }

    nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      justify-content: center;
      text-decoration: none;
      gap: 30px;
    }
    

    nav ul li a {
      text-decoration: none;
      color: #fff;
      font-weight: bold;
      font-size: 16px;
      padding: 8px 15px;
      border-radius: 8px;
      transition: 0.3s ease;
      position: relative;
    }

    nav ul li a:hover {
      background-color: #34495e;
      color: #ff9800;
    }

    nav ul li a:active {
      transform: scale(0.98);
      background-color: #1a252f;
    }

    nav ul li a.active {
      background-color: #ff9800;
      color: white;
    }

    .content {
      max-width: 800px;
      margin: 40px auto;
      padding: 30px;
      background-color: #fff;
      border-radius: 12px;
      box-shadow: 0 0 10px rgba(0,0,0,0.1);
      
    }

    .content h1 {
      color: #2c3e50;
      margin-bottom: 20px;
      font-size: 28px;
    }

    .r-item {
      background-color: #fafafa;
      padding: 15px;
      border-right: 5px solid #ff9800;
      margin-bottom: 15px;
      border-radius: 6px;
      transition: 0.3s;
    
    }

    .r-item:hover {
      background-color: #fff3e0;
      transform: translateX(-5px);
    }

    .r-item h2 {
      margin: 0;
      font-size: 20px;
      color: #e67e22;
    }

    .r-item p {
      margin: 8px 0 0;
      color: #555;
    }