/* Blog tiếng Việt — dùng token của dl.css (docs/blog-and-ads.md) */
.nav-desktop a[aria-current] { color: var(--lavender-text); }
.nav-cta { display: none; }
@media (min-width: 860px) { .nav-cta { display: inline-flex; margin-right: 8px; } }

/* Danh sách bài */
.blog-wrap { max-width: 792px; padding-top: 40px; }
.blog-head h1 { font-size: clamp(30px, 5vw, 44px); margin-bottom: 8px; }
.blog-head .breadcrumb { justify-content: flex-start; margin-bottom: 12px; }
.lead-vi { color: var(--muted); margin: 0 0 20px; font-size: 17px; }
.blog-search { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 0 14px; margin-bottom: 16px; }
.blog-search:focus-within { border-color: var(--text); }
.blog-search svg { color: var(--muted); }
.blog-search input { flex: 1; border: 0; outline: 0; background: transparent; height: 48px; font: inherit; color: var(--text); min-width: 0; }
.topic-chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 8px; scrollbar-width: none; }
.topic-chips::-webkit-scrollbar { display: none; }
@media (min-width: 720px) { .topic-chips { flex-wrap: wrap; overflow: visible; } }
.chip-topic { flex: none; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); text-decoration: none; font-size: 14px; font-weight: 500; white-space: nowrap; }
.chip-topic:hover { border-color: var(--text); }
.chip-topic.is-active { background: var(--text); color: var(--bg); border-color: var(--text); }
.post-list { list-style: none; margin: 0; padding: 0; }
.post-row { padding: 22px 0; border-bottom: 1px solid var(--border); }
.post-row-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.topic-tag { display: inline-block; padding: 3px 10px; border-radius: 999px; background: var(--lavender-soft); color: var(--lavender-text); font-size: 12px; font-weight: 700; text-decoration: none; }
.post-row-title { font-size: 20px; margin: 0 0 6px; line-height: 1.3; }
.post-row-title a { text-decoration: none; }
.post-row-title a:hover { text-decoration: underline; text-underline-offset: 3px; }
.post-row-excerpt { color: var(--muted); margin: 0 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-row time { font-size: 13px; color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 28px 0 0; font-size: 14px; }

/* Bài viết: cột đọc 760px; có mục lục thì thêm cột TOC sticky bên phải trên desktop */
.article-wrap { max-width: 792px; padding-top: 32px; }
@media (min-width: 1100px) {
  .article-wrap.has-toc { max-width: 1120px; display: grid; grid-template-columns: minmax(0, 760px) 260px; gap: 56px; justify-content: center; }
}
.article-head .breadcrumb { justify-content: flex-start; margin-bottom: 14px; }
.article-head h1 { font-size: clamp(28px, 4.4vw, 42px); line-height: 1.18; margin-bottom: 12px; }
.article-meta { color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.article-topics { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 24px; }
.article-cover { width: 100%; height: auto; border-radius: var(--radius); margin-bottom: 24px; aspect-ratio: 760 / 400; object-fit: cover; }

.toc { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.toc li { margin: 0; }
.toc a { display: block; padding: 6px 10px; border-left: 2px solid var(--border); text-decoration: none; color: var(--muted); line-height: 1.4; }
.toc a:hover { color: var(--text); }
.toc .toc-l3 a { padding-left: 22px; font-size: 13px; }
.toc a.is-active { color: var(--lavender-text); border-left-color: var(--lavender); background: var(--lavender-soft); font-weight: 600; }
.toc-side { display: none; }
@media (min-width: 1100px) {
  .toc-side { display: block; position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; padding: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
  .toc-mobile { display: none; }
}
.toc-title { font: 700 15px var(--font-head); margin: 0 0 10px; }
.toc-mobile { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 24px; }
.toc-mobile summary { padding: 14px 16px; font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; }
.toc-mobile summary::after { content: "▾"; transition: transform .15s; }
.toc-mobile[open] summary::after { transform: rotate(180deg); }
.toc-mobile summary::-webkit-details-marker { display: none; }
.toc-mobile .toc { padding: 0 12px 12px; }

/* Nội dung bài (HTML từ WordPress) */
.prose { font-size: 16px; line-height: 1.75; overflow-wrap: break-word; }
@media (min-width: 720px) { .prose { font-size: 17.5px; } }
.prose > :first-child { margin-top: 0; }
.prose h2 { font-size: 1.55em; margin: 2em 0 .6em; scroll-margin-top: 84px; }
.prose h3 { font-size: 1.25em; margin: 1.6em 0 .5em; scroll-margin-top: 84px; }
.prose h4 { font-size: 1.05em; margin: 1.4em 0 .4em; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose table, .prose figure { margin: 0 0 1.1em; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: .3em 0; }
.prose a { color: var(--lavender-text); text-underline-offset: 3px; }
.prose img { height: auto; border-radius: 12px; margin: 0 auto; }
.prose figure { max-width: 100%; }
.prose figcaption { font-size: 14px; color: var(--muted); text-align: center; margin-top: 6px; }
.prose blockquote { border-left: 3px solid var(--lavender); padding: 4px 0 4px 16px; color: var(--muted); }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.prose th { background: var(--surface); }
.prose iframe, .prose video { max-width: 100%; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }
.prose :not(pre) > code { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: .86em; background: color-mix(in srgb, var(--text) 7%, var(--bg)); padding: .15em .4em; border-radius: 6px; }
.code-block { position: relative; margin: 0 0 1.2em; border-radius: 12px; background: #171717; color: #F7F7F2; overflow: hidden; }
:root[data-theme="dark"] .code-block { background: #0F0F0F; border: 1px solid var(--border); }
.code-bar { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px 0 14px; }
.code-lang { font: 700 11px var(--font-body); text-transform: uppercase; letter-spacing: .06em; padding: 3px 8px; border-radius: 999px; background: var(--lavender); color: #fff; }
.code-copy { background: transparent; border: 1px solid #3A3A3A; color: #F7F7F2; border-radius: 8px; padding: 4px 10px; font-size: 13px; }
.code-copy:hover { background: #2A2A2A; }
.prose pre { margin: 0 0 1.2em; padding: 14px 16px; overflow-x: auto; background: #171717; color: #F7F7F2; border-radius: 12px; font: 14px/1.6 "JetBrains Mono", ui-monospace, monospace; }
.code-block pre { margin: 0; border-radius: 0; background: transparent; }
.prose pre code { background: none; padding: 0; font: inherit; color: inherit; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 0; font-size: 14px; }
.article-tags a { color: var(--muted); text-decoration: none; }
.article-tags a:hover { color: var(--lavender-text); }
.dl-cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin: 36px 0 0; padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.dl-cta strong, .dl-cta span { display: block; }
.dl-cta span { color: var(--muted); font-size: 14px; }
.related { margin-top: 40px; }
.related h2 { font-size: 22px; }
.related ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
@media (min-width: 720px) { .related ul { grid-template-columns: repeat(3, 1fr); } }
.related a { display: flex; flex-direction: column; gap: 8px; height: 100%; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); text-decoration: none; }
.related a:hover { border-color: var(--text); }
.related .topic-tag { align-self: flex-start; }
.related strong { line-height: 1.35; }

/* Tài liệu pháp lý của app */
.legal-doc { max-width: 760px; padding-top: 40px; }
.legal-kicker { font-size: 12px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 0 0 6px; }
.legal-doc h1 { font-size: clamp(28px, 4.5vw, 40px); margin-bottom: 6px; }
.legal-doc .prose { margin-top: 28px; }
.legal-contact { margin-top: 32px; padding: 16px 20px; }
.legal-contact p { margin: 6px 0 0; color: var(--muted); font-size: 15px; }