.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background-color: #ffffff;
    border-bottom: 1px solid var(--admin-border-subtle, #e2e8f0);
}

.site-header .nav-link {
    color: var(--admin-text, #1f2937);
    font-weight: 500;
    transition: color 0.15s ease;
}

.site-header .nav-link:hover,
.site-header .nav-link.active {
    color: var(--admin-primary, #2563eb);
}