Responsive Navigation Structure with CSS Grid and Hamburger Toggle

.navbar {
    display: grid;
    grid-template-columns: auto 1fr auto; /* Logo, flexible space, toggle button */
    align-items: center;
    padding: 15px 20px;
    background-color: #333;
    color: white;
}

.navbar-logo {
    font-weight: bold;
    font-size: 1.2em;
}

.navbar-menu {
    display: flex; /* Flexbox for menu items */
    justify-content: flex-end; /* Align menu items to the right */
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-menu li a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
}

.hamburger-toggle {
    display: none; /* Hidden by default on desktop */
    cursor: pointer;
    font-size: 1.5em;
    background: none;
    border: none;
    color: white;
    padding: 5px;
}

@media (max-width: 768px) {
    .navbar {
        grid-template-columns: auto 1fr; /* Logo, flexible space (toggle button below) */
        grid-template-rows: auto auto; /* Two rows for logo/toggle and menu */
        grid-template-areas:
            "logo toggle"
            "menu menu"; /* Menu spans full width on second row */
    }
    .navbar-logo {
        grid-area: logo;
    }
    .hamburger-toggle {
        grid-area: toggle;
        display: block; /* Show hamburger on mobile */
        justify-self: end; /* Push toggle to the right */
    }
    .navbar-menu {
        grid-area: menu;
        flex-direction: column; /* Stack menu items vertically */
        display: none; /* Hidden by default on mobile, toggled by JS */
        text-align: center;
        width: 100%;
        background-color: #444; /* Darker background for dropdown */
        padding-top: 10px;
    }
    .navbar-menu.is-open { /* Class added by JS */
        display: flex;
    }
}