/* =========================
   Navigation — Glassmorphism
   ========================= */

.custom-navbar {
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: background-color var(--transition-base), border-color var(--transition-base);
    border-bottom: var(--glass-border);
}

.custom-navbar.scrolled {
    border-bottom-color: rgba(252, 177, 92, 0.15);
    box-shadow: var(--shadow-navbar);
}

/* Nav links */
.custom-navbar .nav-link,
.custom-navbar .navbar-brand {
    color: var(--color-text-light);
    font-weight: 500;
    font-size: var(--text-sm);
    letter-spacing: 0.03em;
    position: relative;
    padding-bottom: 0.5rem;
    transition: color var(--transition-base);
}

.custom-navbar .nav-link:hover,
.custom-navbar .nav-link:focus-visible {
    color: var(--color-primary);
}

/* Active nav — gold bottom accent with glow */
.custom-navbar .nav-link[aria-current="page"]::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    box-shadow: 0 2px 8px rgba(252, 177, 92, 0.3);
}

/* Dropdown — glassmorphism */
.custom-navbar .dropdown-menu {
    background-color: var(--glass-bg-heavy);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    margin-top: 0.5rem;
    padding: 0.375rem 0;
}

.custom-navbar .dropdown-menu.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.custom-navbar .dropdown-item {
    color: var(--color-text-light-muted);
    font-size: var(--text-sm);
    padding: 0.5rem 1.25rem;
    transition: color var(--transition-fast), background-color var(--transition-fast);
    border-radius: var(--radius-sm);
    margin: 0.125rem 0.375rem;
}

/*
 * Cover BOTH :focus and :focus-visible. enhancements.js auto-focuses
 * the first dropdown item programmatically on `shown.bs.dropdown` for
 * keyboard nav — that triggers plain :focus, which without this rule
 * falls through to Bootstrap's default --bs-dropdown-link-hover-bg
 * (#f8f9fa, light gray). On our dark dropdown that renders as a
 * "white square" against white text on the first item.
 */
.custom-navbar .dropdown-item:hover,
.custom-navbar .dropdown-item:focus,
.custom-navbar .dropdown-item:focus-visible {
    color: var(--color-primary);
    background-color: var(--color-bg-hover-glass);
}

/* Language switcher */
.nav-lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: var(--space-2);
}

.nav-lang-switcher .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-lang-switcher .nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-primary-bg-subtle);
}

.nav-lang-switcher .lang-divider {
    color: var(--color-text-light-faint);
    font-size: var(--text-xs);
}

/* Mobile navbar — solid background */
@media (max-width: 991px) {
    .custom-navbar {
        background-color: var(--color-surface-dark) !important;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .custom-navbar .navbar-collapse {
        padding: var(--space-2) 0;
    }

    .custom-navbar .dropdown-menu {
        background-color: transparent;
        border: none;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        padding-left: var(--space-2);
    }

    .custom-navbar .dropdown-item {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}