.site-nav {
    position: fixed;
    top: 14px;
    left: 16px;
    right: 16px;
    z-index: 50;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(223, 229, 239, 0.92);
    border-radius: 18px;
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 45px rgba(23, 32, 51, 0.12);
}
.site-nav .container {
    flex-wrap: wrap;
    max-width: 1180px;
}
.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--ink);
    font-weight: 700;
    font-size: 1.45rem;
}
.brand-lockup img {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    box-shadow: 0 8px 18px rgba(13, 110, 253, 0.12);
}
.menu-toggle {
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 12px;
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.88);
}
.menu-toggle:hover {
    color: var(--brand);
    border-color: rgba(13, 110, 253, 0.36);
}
.nav-menu {
    align-items: center;
    gap: 0.8rem;
}
.menu-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem;
    border: 1px solid rgba(223, 229, 239, 0.78);
    border-radius: 999px;
    background: rgba(247, 249, 252, 0.72);
}
.menu-links a {
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.55rem 0.78rem;
    border-radius: 999px;
    transition: color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}
.menu-links a:hover,
.menu-links a.active {
    background: #ffffff;
    color: var(--brand);
    box-shadow: 0 8px 20px rgba(13, 110, 253, 0.1);
}
.menu-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@media (max-width: 991px) {
    .menu-toggle {
        display: inline-flex;
    }
    .nav-menu {
        width: 100%;
        flex-basis: 100%;
        padding-top: 1rem;
        border-top: 1px solid var(--line);
    }
    .nav-menu.collapse:not(.show) {
        display: none;
    }
    .nav-menu.collapsing,
    .nav-menu.show {
        display: block;
    }
    .menu-links {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.65rem;
        margin-bottom: 0.85rem;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
    }
    .menu-links a {
        padding: 0.65rem 0.75rem;
        border: 1px solid var(--line);
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.82);
    }
    .menu-actions {
        flex-wrap: wrap;
    }
}

@media (max-width: 575px) {
    .brand-lockup {
        font-size: 1.15rem;
    }
    .brand-lockup img {
        width: 44px;
        height: 44px;
    }
    .menu-links {
        grid-template-columns: 1fr;
    }
    .menu-actions {
        width: 100%;
    }
    .menu-actions .btn {
        flex: 1 1 auto;
    }
}