/* BREADCRUMB */
.breadcrumb-bar { background: var(--c-white); border-bottom: 1px solid var(--c-border-soft); }
.breadcrumb { max-width: 1200px; margin: 0 auto; padding: 11px 24px; display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--c-ink-muted); flex-wrap: wrap; }
.breadcrumb a { color: var(--c-ink-muted); text-decoration: none; transition: color .15s; }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb .sep { color: var(--c-border); }

/* LAYOUT */
.page-wrap { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 320px; gap: 28px; padding: 32px 24px 60px; align-items: start; }

/* ARTICLE WRAP */
.article-wrap { background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-md); animation: fadeUp .45s ease both; }

/* HERO */
.article-hero { background: linear-gradient(135deg, #fef2f2 0%, #ffe4e6 60%, #fce7f3 100%); height: 360px; display: flex; align-items: center; justify-content: center; font-size: 96px; position: relative; }

/* HEADER */
.article-header { padding: 32px 40px 0; }
.cat-tag { display: inline-flex; align-items: center; font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 6px; letter-spacing: .4px; text-transform: uppercase; width: fit-content; }
.cat-kn    { background: var(--c-accent-soft); color: var(--c-accent); }
.cat-luong { background: #fef9ec; color: #b45309; }
.cat-pv    { background: var(--c-teal-soft); color: var(--c-teal); }
.cat-tt    { background: #f0f4ff; color: #3b55d4; }
.article-header h1 { font-family: var(--font-serif); font-size: 30px; font-style: italic; font-weight: 400; color: var(--c-ink); line-height: 1.3; margin: 14px 0 16px; letter-spacing: -.3px; }
.article-lead { font-size: 16px; color: var(--c-ink-soft); line-height: 1.75; margin-bottom: 0; padding: 14px 18px; border-left: 3px solid var(--c-accent); background: var(--c-accent-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; }

/* AUTHOR BAR */
.author-bar { display: flex; align-items: center; justify-content: space-between; padding: 16px 40px; border-top: 1px solid var(--c-border-soft); border-bottom: 1px solid var(--c-border-soft); background: var(--c-paper); margin-top: 20px; flex-wrap: wrap; gap: 12px; }
.author-info { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--c-accent-soft); color: var(--c-accent); font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; border: 2px solid rgba(232,69,69,.2); }
.author-name { font-size: 14px; font-weight: 700; color: var(--c-ink); }
.author-date { font-size: 13px; color: var(--c-ink-muted); }
.article-stats { display: flex; gap: 16px; }
.stat-item { display: flex; align-items: center; gap: 5px; font-size: 13px; color: var(--c-ink-muted); }
.share-bar { display: flex; align-items: center; gap: 8px; }
.share-label { font-size: 13px; color: var(--c-ink-muted); }
.share-btn { width: 32px; height: 32px; border-radius: var(--radius-sm); border: 1.5px solid var(--c-border); background: var(--c-white); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; transition: all .15s; text-decoration: none; color: var(--c-ink-muted); }
.share-btn:hover { border-color: var(--c-accent); color: var(--c-accent); background: var(--c-accent-soft); }

/* CONTENT */
.article-content { padding: 32px 40px 36px; }
.article-content h2 { font-family: var(--font-serif); font-size: 22px; font-style: italic; font-weight: 400; color: var(--c-ink); margin: 36px 0 14px; padding-top: 4px; }
.article-content h3 { font-size: 17px; font-weight: 700; color: var(--c-ink); margin: 26px 0 10px; }
.article-content p { font-size: 15px; line-height: 1.85; color: var(--c-ink-soft); margin-bottom: 18px; }
.article-content ul, .article-content ol { margin: 12px 0 20px 22px; color: var(--c-ink-soft); }
.article-content li { margin-bottom: 10px; line-height: 1.75; font-size: 15px; }
.article-content strong { font-weight: 700; color: var(--c-ink); }

/* HIGHLIGHT BOX — màu teal từ design system */
.highlight-box { background: var(--c-teal-soft); border: 1px solid #99f6e4; border-radius: var(--radius-sm); padding: 20px 22px; margin: 24px 0; }
.highlight-box .hb-title { font-size: 13px; font-weight: 700; color: var(--c-teal); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .5px; }
.highlight-box p { margin: 0; font-size: 14px; line-height: 1.7; color: #134e4a; }

/* SKILL GRID — card dùng cùng pattern với contact-form */
.skill-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0; }
.skill-card { border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 18px; background: var(--c-white); box-shadow: var(--shadow-sm); transition: box-shadow .2s, border-color .15s; }
.skill-card:hover { box-shadow: var(--shadow-md); border-color: rgba(232,69,69,.3); }
.skill-num { width: 28px; height: 28px; border-radius: 6px; background: var(--c-accent); color: #fff; font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin-bottom: 10px; }
.skill-card h4 { font-size: 14px; font-weight: 700; margin-bottom: 5px; color: var(--c-ink); }
.skill-card p { font-size: 13px; color: var(--c-ink-muted); line-height: 1.55; margin: 0; }

/* TABLE */
.data-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; border: 1px solid var(--c-border); border-radius: var(--radius-sm); overflow: hidden; }
.data-table th { background: var(--c-ink); color: var(--c-white); font-weight: 700; padding: 12px 16px; text-align: left; font-size: 13px; }
.data-table td { padding: 11px 16px; border-bottom: 1px solid var(--c-border-soft); color: var(--c-ink-soft); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:nth-child(even) td { background: var(--c-paper); }
.badge-high { background: var(--c-teal-soft); color: var(--c-teal); padding: 3px 9px; border-radius: 6px; font-size: 12px; font-weight: 700; }
.badge-med  { background: #fef9ec; color: #b45309; padding: 3px 9px; border-radius: 6px; font-size: 12px; font-weight: 700; }

/* BLOCKQUOTE */
.blockquote { border-left: 3px solid var(--c-accent); margin: 28px 0; padding: 18px 22px; background: var(--c-accent-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.blockquote p { font-family: var(--font-serif); font-size: 17px; font-style: italic; color: var(--c-ink); margin: 0 0 10px; line-height: 1.65; }
.blockquote cite { font-size: 13px; color: var(--c-ink-muted); font-style: normal; font-weight: 600; }

/* TAGS */
.article-tags { padding: 18px 40px; border-top: 1px solid var(--c-border-soft); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; background: var(--c-paper); }
.tag-label { font-size: 13px; font-weight: 700; color: var(--c-ink-muted); margin-right: 2px; }
.tag-pill { font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; border: 1.5px solid var(--c-border); color: var(--c-ink-muted); text-decoration: none; background: var(--c-white); transition: all .15s; }
.tag-pill:hover { border-color: var(--c-accent); color: var(--c-accent); background: var(--c-accent-soft); }

/* AUTHOR BIO — dùng style .info-item từ contact.css */
.author-bio { margin: 0 40px 32px; padding: 18px 20px; background: var(--c-border-soft); border: 1px solid var(--c-border); border-radius: var(--radius-sm); display: flex; gap: 16px; align-items: flex-start; transition: background .15s; }
.author-bio:hover { background: var(--c-accent-soft); border-color: #fecaca; }
.bio-avatar { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0; background: var(--c-accent-soft); display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 800; color: var(--c-accent); border: 2px solid rgba(232,69,69,.25); }
.bio-name { font-size: 15px; font-weight: 700; margin-bottom: 2px; color: var(--c-ink); }
.bio-role { font-size: 13px; color: var(--c-teal); margin-bottom: 8px; font-weight: 600; }
.bio-text { font-size: 13px; color: var(--c-ink-muted); line-height: 1.6; }

/* RELATED */
.related-section { padding: 0 40px 40px; }
.section-title { font-family: var(--font-serif); font-size: 20px; font-style: italic; font-weight: 400; color: var(--c-ink); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.section-title::before { content: ''; width: 3px; height: 20px; background: var(--c-accent); border-radius: 2px; flex-shrink: 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-card { border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; transition: box-shadow .2s, transform .2s; text-decoration: none; color: inherit; background: var(--c-white); box-shadow: var(--shadow-sm); }
.related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.related-img { height: 110px; display: flex; align-items: center; justify-content: center; font-size: 38px; }
.related-img.a { background: linear-gradient(135deg, #fef9ec, #fef3c7); }
.related-img.b { background: linear-gradient(135deg, var(--c-teal-soft), #ccfbf1); }
.related-img.c { background: linear-gradient(135deg, var(--c-accent-soft), #ffe4e6); }
.related-body { padding: 14px 16px; }
.related-body h4 { font-size: 13px; font-weight: 700; line-height: 1.45; margin-bottom: 8px; color: var(--c-ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color .15s; }
.related-card:hover h4 { color: var(--c-accent); }
.related-meta { font-size: 12px; color: var(--c-ink-muted); }

/* SIDEBAR — giống tin-tuc.html */
.sidebar-box { background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: 20px; box-shadow: var(--shadow-sm); animation: fadeUp .45s .1s ease both; }
.sidebar-head { font-size: 15px; font-weight: 700; color: var(--c-ink); padding: 16px 20px; border-bottom: 1px solid var(--c-border-soft); display: flex; align-items: center; gap: 8px; }
.sidebar-head::before { content: ''; width: 3px; height: 16px; background: var(--c-accent); border-radius: 2px; flex-shrink: 0; }

/* TOC sticky */
.toc-wrap { position: sticky; top: 76px; }
.toc-link { display: block; padding: 9px 20px; font-size: 13px; color: var(--c-ink-muted); text-decoration: none; transition: all .15s; border-left: 2px solid transparent; border-bottom: 1px solid var(--c-border-soft); line-height: 1.45; }
.toc-link:last-child { border-bottom: none; }
.toc-link:hover { color: var(--c-ink); background: var(--c-border-soft); border-left-color: var(--c-border); }
.toc-link.active { color: var(--c-accent); border-left-color: var(--c-accent); background: var(--c-accent-soft); font-weight: 600; }

/* Hot items */
.hot-item { display: flex; gap: 12px; padding: 11px 20px; text-decoration: none; color: inherit; transition: background .15s; border-bottom: 1px solid var(--c-border-soft); }
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { background: var(--c-accent-soft); }
.hot-num { width: 22px; height: 22px; border-radius: 6px; background: var(--c-border-soft); border: 1px solid var(--c-border); color: var(--c-ink-muted); font-size: 11px; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.hot-num.r { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
.hot-text { font-size: 13px; line-height: 1.45; color: var(--c-ink-soft); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* CTA sidebar — dùng .btnSend style làm button */
.cta-box { background: var(--c-ink); border-radius: var(--radius-md); padding: 24px 20px; margin-bottom: 20px; }
.cta-box h4 { font-family: var(--font-serif); font-style: italic; font-size: 18px; color: var(--c-white); margin-bottom: 6px; }
.cta-box p { font-size: 13px; color: rgba(255,255,255,.58); margin-bottom: 16px; line-height: 1.55; }
.cta-box .btnSend { display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 12px 20px; background: var(--c-accent); color: #fff; font-family: var(--font-body); font-size: 14px; font-weight: 700; border: none; border-radius: var(--radius-sm); cursor: pointer; transition: background .18s, transform .15s, box-shadow .18s; }
.cta-box .btnSend:hover { background: var(--c-accent-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,69,69,.3); }

/* Newsletter sidebar */
.nl-mini { padding: 18px 20px; }
.nl-mini h4 { font-size: 14px; font-weight: 700; color: var(--c-ink); margin-bottom: 6px; }
.nl-mini p { font-size: 13px; color: var(--c-ink-muted); margin-bottom: 12px; line-height: 1.5; }
.nl-mini input { width: 100%; border: 1.5px solid var(--c-border); border-radius: var(--radius-sm); padding: 10px 13px; font-family: var(--font-body); font-size: 13px; color: var(--c-ink); outline: none; margin-bottom: 8px; transition: border-color .15s, box-shadow .15s; }
.nl-mini input:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(232,69,69,.1); }
.nl-mini input::placeholder { color: #adb5bd; font-size: 13px; }
.nl-mini .btnSend { display: flex; align-items: center; justify-content: center; width: 100%; padding: 10px 16px; background: var(--c-accent); color: #fff; font-family: var(--font-body); font-size: 14px; font-weight: 700; border: none; border-radius: var(--radius-sm); cursor: pointer; transition: background .18s, transform .15s, box-shadow .18s; }
.nl-mini .btnSend:hover { background: var(--c-accent-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,69,69,.3); }