* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
}

nav {
    background-color: #1c7ec0;
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 999;
}

/* Main menu */
.menu {
    display: flex;
    justify-content: flex-start;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

/* Menu items */
.menu > li {
    position: relative;
    padding: 20px 15px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
}

/* Underline on hover */
.menu > li::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 8px;
    width: 0%;
    height: 2px;
    background: white;
    transition: width 0.3s ease;
}

.menu > li:hover::after {
    width: 100%;
}

/* Submenu styling */
.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #1c7ec0;
    list-style: none;
    padding: 0;
    margin: 0;
    min-width: 160px;
    z-index: 1000;
}

/* Nested submenu positioned to the right */
.submenu .submenu {
    top: 0;
    left: 100%;
}

/* Submenu list items */
.submenu li {
    padding: 10px 15px;
    color: white;
    cursor: pointer;
    white-space: nowrap;
    position: relative;
}

/* Hover background */
.submenu li:hover {
    background-color: #555;
}

/* Show submenu on hover */
.menu > li:hover > .submenu,
.submenu li:hover > .submenu {
    display: block;
}

/* Anchor links */
a {
    text-decoration: none;
    color: white;
    display: block;
}

/* Menu toggle button (hamburger icon) */
.menu-toggle {
    display: none;
    font-size: 28px;
    color: white;
    padding: 15px;
    cursor: pointer;
}

/* Login item (right aligned on desktop) */
.login-item {
    margin-left: auto;
    display: flex;
    align-items: center;
    position: relative;
}

/* Responsive styles */
@media (max-width: 768px) {
    .menu {
        flex-direction: column;
        display: none;
        width: 100%;
        background-color: #1c7ec0;
    }

    .menu.active {
        display: flex;
    }

    .menu > li {
        width: 100%;
        padding: 15px;
    }

    .menu > li::after {
        display: none; /* Remove underline on mobile */
    }

    /* Submenus become static */
    .submenu {
        position: static;
        display: none;
        background-color: #288bd1;
    }

    .menu > li.active > .submenu,
    .submenu li.active > .submenu {
        display: block;
    }

    /* Indent submenu items */
    .submenu li {
        padding-left: 30px;
    }

    /* Nested submenu more indent */
    .submenu .submenu li {
        padding-left: 45px;
    }

    .menu-toggle {
        display: block;
    }
}