/* NLKT Core - nút tài liệu trước / tiếp (từ snippet #13) */
.nlkt-doc-nav { display: flex; gap: 16px; margin: 35px 0; padding-top: 20px; border-top: 1px solid #e5e5e5; }
.nlkt-doc-nav-item { width: 50%; }
.nlkt-doc-nav-item a {
    display: block; padding: 18px 20px; border: 1px solid #ddd; border-radius: 12px;
    background: #fafafa; text-decoration: none; color: #222; transition: all 0.2s ease;
}
.nlkt-doc-nav-item a:hover { background: #f0f6ff; border-color: #8bbcff; transform: translateY(-2px); }
.nlkt-label { display: block; font-size: 14px; color: #666; margin-bottom: 6px; }
.nlkt-doc-nav-item strong { font-size: 17px; line-height: 1.4; }
.nlkt-next { text-align: right; }

@media (max-width: 700px) {
    .nlkt-doc-nav { flex-direction: column; }
    .nlkt-doc-nav-item { width: 100%; }
    .nlkt-next { text-align: left; }
}