/* Navbar Item with Submenu */
.navbar-item-with-submenu {
    position: relative;
}

.navbar-item-with-submenu > a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-submenu-toggle {
    display: inline-block;
    font-size: 0.7rem;
    transition: transform 0.3s ease;
    margin-left: 0.25rem;
}

.navbar-item-with-submenu.open-submenu > a .navbar-submenu-toggle {
    transform: rotate(180deg);
}

/* Submenu Styles */
.navbar-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-top: none;
    border-radius: 0 0 8px 8px;
    min-width: 250px;
    list-style: none;
    padding: 0.5rem 0;
    margin-top: 0;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 200;
    max-height: 400px;
    overflow-y: auto;
}

.navbar.scrolled .navbar-submenu {
    background-color: #FFFFFF;
    border-color: #D1D5DB;
}

.navbar-item-with-submenu:hover .navbar-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar-submenu li {
    list-style: none;
}

.navbar-submenu li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
}

.navbar.scrolled .navbar-submenu li a {
    color: var(--color-text-primary);
}

.navbar-submenu li a:hover {
    background-color: #F3F4F6;
    color: var(--color-text-primary);
    padding-left: 2rem;
}

.navbar.scrolled .navbar-submenu li a:hover {
    background-color: #E5E7EB;
}

.navbar-submenu li a.active {
    background-color: #F0F4F8;
    color: var(--color-primary);
    font-weight: 500;
}

.navbar.scrolled .navbar-submenu li a.active {
    background-color: #E0E7F1;
}

.navbar-submenu li a.active::before {
    content: '✓';
    position: absolute;
    left: 0.75rem;
    font-weight: bold;
    color: var(--color-primary);
}

.navbar-submenu li a.active::after {
    width: 100%;
}

/* Submenu Category Labels */
.navbar-submenu-category {
    padding: 0.5rem 1.5rem;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid #E5E7EB;
}

.navbar-submenu-category:first-child {
    margin-top: 0;
    border-top: none;
    padding-top: 0.5rem;
}

/* Scrollbar styling for submenu */
.navbar-submenu::-webkit-scrollbar {
    width: 6px;
}

.navbar-submenu::-webkit-scrollbar-track {
    background: transparent;
}

.navbar-submenu::-webkit-scrollbar-thumb {
    background: #D1D5DB;
    border-radius: 3px;
}

.navbar-submenu::-webkit-scrollbar-thumb:hover {
    background: #9CA3AF;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .navbar-submenu {
        position: static;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease;
        box-shadow: none;
        border: none;
        padding: 0;
        margin: 0;
        transform: none;
    }

    .navbar-item-with-submenu.open-submenu .navbar-submenu {
        opacity: 1;
        visibility: visible;
        max-height: 400px;
        overflow-y: auto;
        padding: 0.5rem 0;
        background-color: #F9FAFB;
        border-left: 3px solid var(--color-primary);
        margin-left: 1rem;
        margin-top: 0.5rem;
    }

    .navbar.scrolled .navbar-item-with-submenu.open-submenu .navbar-submenu {
        background-color: #F3F4F6;
    }

    .navbar-submenu li a {
        padding-left: 2rem;
    }

    .navbar-submenu li a:hover {
        padding-left: 2.5rem;
    }

    .navbar-submenu li a.active {
        padding-left: 2rem;
    }

    .navbar-submenu-category {
        padding-left: 2rem;
    }
}

/* Animation for dropdown appearance */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-item-with-submenu:hover .navbar-submenu {
    animation: slideDown 0.3s ease;
}