/* ── Site Navigation (shared) ── */
.nav-item {
    position: relative;
    margin-left: 1.5rem;
}
.nav-item > a {
    font-size: .85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color .2s;
}
.nav-item > a:hover { color: var(--text); }
.nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: 4px;
    padding: 0.5rem 0;
    min-width: 180px;
    z-index: 200;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    max-height: 70vh;
    overflow-y: auto;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
    display: block;
}
.nav-dropdown a {
    display: block;
    padding: 0.4rem 1.25rem;
    font-size: .82rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color .2s, background .2s;
}
.nav-dropdown a:hover {
    color: var(--text);
    background: var(--bg);
}
.nav-blog {
    font-size: .85rem;
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: color .2s;
}
.nav-blog:hover { color: var(--text); }
.nav-link {
    font-size: .85rem;
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: color .2s;
}
.nav-link:hover { color: var(--text); }
.lang-link {
    font-size: .75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    letter-spacing: .04em;
    transition: color .2s;
}
.lang-link:hover { color: var(--text); }
@media (max-width: 768px) {
    .nav-item {
        margin-left: 0;
        width: 100%;
    }
    .nav-dropdown {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        border-left: 1px solid var(--hairline);
        margin-left: 1rem;
        padding-left: 0;
        max-height: none;
    }
}