/* Dropdown Submenu Styles */
.nav-menu>li {
    position: relative;
}

.nav-menu>li.has-submenu>a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    transition: transform var(--transition-base);
}

.nav-menu>li.has-submenu:hover>a::after {
    transform: rotate(180deg);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    z-index: 1000;
    padding: var(--space-sm) 0;
    margin-top: var(--space-sm);
}

.nav-menu>li.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li {
    list-style: none;
}

.submenu a {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    color: var(--color-text-primary);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    font-weight: 400;
    text-transform: uppercase;
    text-decoration: none;
    transition: background-color var(--transition-base), color var(--transition-base), padding-left var(--transition-base);
}

.submenu a:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-accent);
    padding-left: calc(var(--space-lg) + 8px);
}

/* Mobile submenu styles */
@media (max-width: 768px) {

    /* Hide drop-down arrows */
    .nav-menu>li.has-submenu>a::after {
        display: none !important;
    }

    /* Hide submenus completely */
    .submenu {
        display: none !important;
    }
}