.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0 24px;
    background: color-mix(in srgb, var(--bg-page) 86%, transparent);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.site-nav-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 18px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 23px;
    color: var(--text-primary);
    text-decoration: none;
}

.brand .mark {
    width: 22px;
    height: 22px;
}

.nav-links {
    display: flex;
    gap: 28px;
    margin-left: auto;
}

.nav-links a {
    font-size: 0.875rem;
    line-height: 18px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .site-nav {
        padding: 0 20px;
    }

    .site-nav-inner {
        justify-content: space-between;
    }

    .brand {
        font-size: 1rem;
    }

    .nav-links,
    .site-nav .theme-toggle {
        display: none;
    }
}