/**
 * Navigation enhancements - premium mega menu & mobile
 */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.75);
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.04);
}

.top-bar {
    background: linear-gradient(90deg, var(--color-navy-dark), var(--color-navy));
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.8125rem;
}

.top-bar a {
    color: rgba(255, 255, 255, 0.86);
    text-decoration: none;
    transition: color 0.2s ease;
}

.top-bar a:hover { color: #ffffff; }

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding-right: 0.25rem;
}

.language-switcher__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.45rem;
    border-radius: 999px;
    line-height: 1;
}

.language-switcher__link.is-active {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
}

.language-switcher__flag {
    display: block;
    width: 1.15rem;
    height: 0.75rem;
    object-fit: cover;
    border-radius: 0.125rem;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.nav-link-top {
    position: relative;
    color: var(--color-slate);
    font-weight: 600;
}

.nav-link-top::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.45rem;
    width: 100%;
    height: 2px;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 220ms ease;
    border-radius: 1px;
}

.nav-link-top:hover::after,
.nav-item-mega:hover .nav-link-top::after,
.nav-item-dropdown:hover .nav-link-top::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-caret {
    transition: transform 0.2s ease;
}

.nav-item-mega:hover .nav-caret,
.nav-item-mega:focus-within .nav-caret,
.nav-item-dropdown:hover .nav-caret,
.nav-item-dropdown:focus-within .nav-caret {
    transform: rotate(180deg);
}

.mega-menu-panel > div,
.dropdown-panel > ul {
    border-radius: 1rem !important;
    box-shadow: 0 20px 40px -12px rgba(6, 47, 85, 0.15), 0 0 0 1px rgba(226, 232, 240, 0.5) !important;
}

.mega-menu-link {
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.mega-menu-link:hover {
    padding-left: 0.875rem;
    background: var(--color-navy-light);
}

.mega-menu-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: var(--color-navy-light);
    color: var(--color-navy);
    flex-shrink: 0;
}

.mega-menu-link:hover .mega-menu-icon {
    background: var(--color-navy);
    color: #ffffff;
}

.dropdown-link {
    transition: all 0.2s ease;
}

.dropdown-link:hover {
    padding-left: 1.35rem;
    background: var(--color-navy-light);
}

.mobile-accordion-trigger[aria-expanded="true"] .accordion-chevron {
    transform: rotate(180deg);
}

#mobile-menu {
    animation: slideDown 0.25s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.nav-item-mega .mega-menu-panel::before,
.nav-item-dropdown .dropdown-panel::before {
    content: '';
    position: absolute;
    top: -0.75rem;
    left: 0;
    right: 0;
    height: 0.75rem;
}

/* Footer */
.site-footer {
    background:
        radial-gradient(circle at top left, rgba(197, 160, 40, 0.16), transparent 24rem),
        linear-gradient(180deg, var(--color-navy), var(--color-navy-dark));
    color: rgba(255, 255, 255, 0.82);
    margin-top: auto;
}

.site-footer h3 {
    color: #ffffff;
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.site-footer a {
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-footer a:hover { color: var(--color-gold); }

.footer-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    margin-top: 2.5rem;
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.55);
}