.navbar-dropdown {
    position: relative;
}

.navbar-dropdown .dropdown-menu {
    display: none;
    position: absolute;
    left: 0;
    top: 100%;
    background: #31989e;
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    z-index: 1000;
    padding: 0;
    margin: 0;
}

.navbar-dropdown:hover .dropdown-menu,
.navbar-dropdown:focus-within .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    list-style: none;
    position: relative;
}

.dropdown-menu a {
    display: block;
    color: #fff;
    padding: 12px 24px;
    text-decoration: none;
    transition: background 0.2s;
    font-size: 1rem;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: #267a80;
}

/* Submenu styles */
.navbar-dropdown-sub {
    position: relative;
}

.dropdown-menu-sub {
    display: none;
    position: absolute;
    left: 100%;
    top: 0;
    background: #31989e;
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    z-index: 1100;
    padding: 0;
    margin: 0;
    border-radius: 0 6px 6px 0;
}

.navbar-dropdown-sub:hover > .dropdown-menu-sub,
.navbar-dropdown-sub:focus-within > .dropdown-menu-sub {
    display: block;
}

.dropdown-menu-sub li a {
    padding: 12px 24px;
}

@media (max-width: 900px) {
    .navbar-dropdown .dropdown-menu,
    .dropdown-menu-sub {
        position: static;
        box-shadow: none;
        background: #31989e;
        min-width: 100%;
        border-radius: 0;
    }
    .dropdown-menu-sub {
        padding-left: 20px;
    }
}