﻿ <style>
        /* Reset some default styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: Arial, sans-serif;
        }
        
        /* Navigation bar styles */
        nav {
            background-color: #333;
        }
        
        /* Main menu list */
        .menu {
            list-style-type: none;
            display: flex;
            justify-content: center;
            position: relative;
        }
        
        /* Main menu items */
        .menu li {
            position: relative;
        }
        
        .menu li a {
            display: block;
            color: white;
            text-align: center;
            padding: 14px 20px;
            text-decoration: none;
            transition: background-color 0.3s;
        }
        
        .menu li a:hover {
            background-color: #555;
        }
        
        /* Submenu styles */
        .submenu {
            display: none;
            position: absolute;
            background-color: #444;
            min-width: 200px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            z-index: 1;
        }
        
        /* Show submenu on hover */
        .menu li:hover .submenu {
            display: block;
        }
        
        /* Submenu items */
        .submenu li {
            display: block;
        }
        
        .submenu li a {
            padding: 12px 16px;
            text-align: left;
        }
        
        /* Second-level submenu */
        .submenu .submenu {
            left: 100%;
            top: 0;
        }
        
        /* Add arrow for items with submenus */
        .has-submenu::after {
            content: "▼";
            font-size: 10px;
            margin-left: 5px;
        }
        
        /* Responsive design for smaller screens */
        @media screen and (max-width: 768px) {
            .menu {
                flex-direction: column;
            }
            
            .submenu {
                position: static;
                display: none;
                width: 100%;
            }
            
            .menu li:hover .submenu {
                display: none;
            }
            
            .menu li.active .submenu {
                display: block;
            }
        }
    </style>