.top-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    height: var(--banner-h);
    display: flex;
    align-items: center;
    justify-content: center;
}
.top-banner .banner-content { display: flex; align-items: center; gap: 8px; }
.top-banner .banner-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.03em;
}
.site-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1040;
    height: var(--navbar-h);
    background: rgba(10,10,10,0.25);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid transparent;
    transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
}
.site-navbar.banner-enabled { top: var(--banner-h); }
.site-navbar.scrolled {
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--line);
}

.navbar-inner {
    max-width: 1560px;
    margin: 0 auto;
    padding: 0 2.5rem;
    height: var(--navbar-h);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1.5rem;
}
.site-nav-left { justify-content: flex-end; }
.site-nav-right { justify-content: flex-start; }
.navbar-right {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-left: auto;
}
.navbar-brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}
.brand-name {
    font-size: 1.55rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    white-space: nowrap;
}
.brand-name-accent { color: var(--primary); transition: color var(--transition); }
.navbar-brand-link:hover .brand-name-accent { color: var(--accent-light); }
.navbar-brand-link:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
.site-nav {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0;
    padding: 0;
}
.site-nav-item { position: relative; }
.site-nav-link {
    position: relative;
    isolation: isolate;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    padding: 0 1.1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    background: transparent;
    border-radius: 0;
    clip-path: var(--px-clip-2);
    white-space: nowrap;
    text-decoration: none;
    transition: color .15s ease, background-color .15s ease;
}
.site-nav-icon {
    font-size: 0.95rem;
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.75;
    transition: opacity var(--transition);
}
.site-nav-link:hover .site-nav-icon { opacity: 1; }
.site-nav-link::before {
    content: '';
    position: absolute;
    inset: 1px;
    z-index: -1;
    clip-path: inherit;
    background: transparent;
    transition: background-color .15s ease;
}
.site-nav-link:hover,
.site-nav-link[aria-expanded="true"],
.site-nav-link:focus-visible {
    color: #fff;
    background: var(--line);
    outline: none;
}
.site-nav-link:hover::before,
.site-nav-link[aria-expanded="true"]::before,
.site-nav-link:focus-visible::before { background: var(--surface-hover); }
.site-nav-link::after,
.site-nav-link.dropdown-toggle::after {
    content: '';
    position: absolute;
    left: calc(50% - 3px);
    bottom: 3px;
    width: 6px;
    height: 6px;
    margin: 0;
    border: 0;
    background: var(--accent-light);
    -webkit-mask: none;
    mask: none;
    image-rendering: auto;
    opacity: 0;
    transition: opacity .15s ease;
}
.site-nav-link.active { color: #fff; }
.site-nav-link.active .site-nav-icon { color: var(--primary); opacity: 1; }
.site-nav-link.active::after,
.site-nav-link.active.dropdown-toggle::after { opacity: 1; }

.btn-nav-outline, .btn-nav-primary {
    position: relative;
    isolation: isolate;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 1.2rem;
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: #fff;
    border: 0;
    border-radius: 0;
    clip-path: var(--px-clip);
    text-decoration: none;
    white-space: nowrap;
}
.btn-nav-outline:hover, .btn-nav-outline:focus, .btn-nav-outline:active,
.btn-nav-primary:hover, .btn-nav-primary:focus, .btn-nav-primary:active { color: #fff; }

.btn-nav-outline { background: var(--line); transition: background-color .15s ease; }
.btn-nav-outline::before {
    content: '';
    position: absolute;
    inset: 1px;
    z-index: -1;
    clip-path: inherit;
    background: var(--surface);
    transition: background-color .15s ease;
}
.btn-nav-outline:hover { background: var(--line-strong); }
.btn-nav-outline:hover::before { background: var(--surface-hover); }

.btn-nav-primary {
    background: var(--accent);
    box-shadow: inset 0 2px 0 rgba(255,255,255,.18), inset 0 -3px 0 rgba(0,0,0,.28);
    transition: background-color .15s ease;
}
.btn-nav-primary:hover { background: #d6003b; }
.btn-nav-primary:active { box-shadow: inset 0 2px 0 rgba(0,0,0,.2), inset 0 -1px 0 rgba(0,0,0,.28); }
.btn-nav-outline:focus-visible, .btn-nav-primary:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.nav-avatar {
    border-radius: 0;
    clip-path: var(--px-clip);
    flex-shrink: 0;
}
.nav-username { font-size: 0.875rem; font-weight: 700; color: #fff; }
.nav-user-toggle { cursor: pointer; padding: 4px 8px; border-radius: 0; transition: background var(--transition); }
.nav-user-toggle:hover { background: var(--surface-hover); }
.mobile-toggler {
    position: relative;
    isolation: isolate;
    background: var(--line);
    color: var(--px-muted);
    border: 0;
    border-radius: 0;
    clip-path: var(--px-clip);
    padding: 6px 10px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition);
}
.mobile-toggler::before {
    content: '';
    position: absolute;
    inset: 1px;
    z-index: -1;
    clip-path: inherit;
    background: var(--surface);
    transition: background-color var(--transition);
}
.mobile-toggler:hover { color: #fff; background: var(--line-strong); }
.mobile-toggler:hover::before { background: var(--surface-hover); }
.mobile-nav-menu {
    background: var(--surface);
    border-top: 1px solid var(--line);
    padding: 0.75rem 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.mobile-nav-link {
    display: block;
    padding: 0.55rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--px-muted);
    border-radius: 0;
    text-decoration: none;
    transition: color var(--transition), background var(--transition);
}
.mobile-nav-link:hover, .mobile-nav-link.active { color: #fff; background: var(--surface-hover); }
.mobile-nav-link.sub { padding-left: 1.5rem; font-size: 0.85rem; }
.mobile-nav-group-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--px-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.5rem 0.75rem 0.2rem;
}
.page-spacer {
    height: var(--navbar-h);
}
.page-spacer.banner-enabled {
    height: calc(var(--navbar-h) + var(--banner-h));
}
.mobile-nav-auth { display: flex; gap: 12px; padding: 12px 0 4px; }
.mobile-nav-auth > a { flex: 1 1 0; }
@media (max-width: 1199.98px) {
    .navbar-inner { display: flex; justify-content: flex-start; padding: 0 1rem; gap: 0; }
    .navbar-actions { gap: 8px; }
    .navbar-right { margin-left: auto; }
    .mobile-toggler { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 36px; padding: 0; }
    .mobile-toggler.d-lg-none { margin-left: 0 !important; }
    .brand-name { font-size: 1.3rem; }
}
@media (max-width: 575.98px) {
    .brand-name { font-size: 1.1rem; }
    .navbar-actions .btn-nav-outline { display: none; }
    .navbar-actions .btn-nav-primary { padding: 0 0.9rem; }
    .navbar-actions .notification-bell { margin-left: 0 !important; }
}
@media (min-width: 576px) {
    .mobile-nav-auth { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    .site-nav-link, .site-nav-link::before, .site-nav-link::after, .btn-nav-outline, .btn-nav-primary { transition: none; }
}