/* Submenu styles */
.nav-menu .submenu {
    position: absolute;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    display: none;
    z-index: 1000;
    margin-top: 5px;
}

.nav-menu li {
    position: relative;
}

.nav-menu li:hover .submenu {
    display: block;
}

.submenu a {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.submenu a:hover {
    background: #f3f4f6;
    color: var(--primary-color);
}

.submenu a i {
    width: 20px;
    text-align: center;
}

/* Divider line */
.submenu-divider {
    height: 1px;
    background: var(--border-color);
    margin: 5px 0;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .submenu {
        background: #1f2937;
    }
    
    .submenu a:hover {
        background: #374151;
    }
}