/* ===== Luật GPT — hệ thiết kế chuyên nghiệp (legal portal) ===== */
:root {
  --primary: #168a5f;
  --primary-dark: #0f6e4a;
  --primary-soft: #ddf3e8;
  --primary-50: #f0faf5;
  --accent: #10b981;
  --ink: #0f1b2d;
  --ink-2: #3b4757;
  --muted: #6b7686;
  --line: #e6e9ef;
  --line-2: #eef1f5;
  --bg: #f4f6fa;
  --card: #fff;
  --ok: #15a34a;
  --warn: #c2780c;
  --danger: #dc2626;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(16, 30, 54, .06);
  --shadow: 0 2px 8px rgba(16, 30, 54, .06), 0 12px 28px rgba(16, 30, 54, .07);
  --maxw: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.65;
  -webkit-font-smoothing: antialiased; font-size: 15px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
h1, h2, h3 { color: var(--ink); line-height: 1.3; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.site-header .bar { display: flex; align-items: center; gap: 24px; padding: 12px 0; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { height: 40px; width: auto; }
.header-search { flex: 1; max-width: 620px; }
.header-search form { display: flex; align-items: center; background: var(--bg); border: 1.5px solid var(--line); border-radius: 999px; padding: 3px 4px 3px 16px; transition: border-color .15s, background .15s; }
.header-search form:focus-within { border-color: var(--primary); background: var(--card); }
.header-search input { flex: 1; border: 0; background: transparent; outline: none; font-size: 14.5px; padding: 8px 6px; }
.header-search button { border: 0; background: var(--primary); color: #fff; width: 38px; height: 38px; border-radius: 999px; cursor: pointer; display: grid; place-items: center; flex-shrink: 0; }
.header-search button:hover { background: var(--primary-dark); }
.header-nav { margin-left: auto; display: flex; align-items: center; gap: 24px; font-weight: 600; font-size: 14.5px; }
.header-nav > a { color: var(--ink-2); }
.header-nav > a:hover { color: var(--primary); }
/* nhóm 2 icon (đổi nền + tài khoản) sát nhau, tách nhẹ khỏi 3 menu chữ */
.header-nav .theme-btn { margin-left: 4px; }
.header-nav .theme-btn + .acct, .header-nav .theme-btn + .acct-btn { margin-left: -14px; }

/* ===== Hero (home) ===== */
.hero { background: linear-gradient(180deg, #0f6e4a 0%, #168a5f 100%); color: #fff; padding: 54px 20px 60px; text-align: center; position: relative; }
.hero h1 { color: #fff; font-size: 30px; font-weight: 800; margin: 0 0 8px; letter-spacing: -.02em; }
.hero p { color: #cdeede; font-size: 16px; margin: 0 auto 26px; max-width: 620px; }
.hero-search { max-width: 720px; margin: 0 auto; display: flex; background: var(--card); border-radius: 14px; box-shadow: 0 14px 40px rgba(8, 28, 70, .35); overflow: hidden; }
.hero-search input { flex: 1; border: 0; outline: none; font-size: 16px; padding: 17px 20px; color: var(--ink); }
.hero-search button { border: 0; background: var(--accent); color: #fff; font-weight: 700; font-size: 15px; padding: 0 30px; cursor: pointer; display: flex; align-items: center; gap: 8px; }
.hero-search button:hover { background: #0c8f63; }
[data-theme="dark"] .hero { background: linear-gradient(180deg, #0a3a28 0%, #0f5a3c 100%); }
[data-theme="dark"] .hero-search { box-shadow: 0 14px 40px rgba(0, 0, 0, .5); }
.hero-tags { margin-top: 18px; font-size: 14px; color: #cdeede; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; align-items: center; }
.hero-tags a { color: #fff; background: rgba(255,255,255,.14); padding: 5px 13px; border-radius: 999px; font-size: 13px; }
.hero-tags a:hover { background: rgba(255,255,255,.26); color: #fff; }

/* ===== Quick access (loại văn bản) ===== */
.quick-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-top: -34px; position: relative; z-index: 2; }
.quick-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 16px; text-align: center; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s, border-color .15s; }
.quick-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #cfdcfa; text-decoration: none; }
.quick-card .ic { width: 44px; height: 44px; margin: 0 auto 10px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-size: 20px; }
.quick-card .t { font-weight: 700; color: var(--ink); font-size: 15px; }
.quick-card .c { color: var(--muted); font-size: 12.5px; margin-top: 2px; }

/* ===== Sections ===== */
.section { padding: 36px 0; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin: 0 0 18px; }
.section-head h2 { font-size: 20px; font-weight: 800; margin: 0; display: flex; align-items: center; gap: 10px; }
.section-head h2::before { content: ""; width: 4px; height: 20px; background: var(--primary); border-radius: 3px; }
.section-head a { font-size: 14px; font-weight: 600; }

/* ===== Listing (rows) ===== */
.doc-list { display: flex; flex-direction: column; gap: 12px; }
.doc-row { display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; transition: box-shadow .15s, border-color .15s, transform .1s; color: inherit; }
.doc-row:hover { box-shadow: var(--shadow); border-color: #cfdcfa; text-decoration: none; transform: translateY(-1px); }
.doc-row-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.doc-row-head .so-hieu { font-weight: 700; color: var(--primary); font-size: 13px; background: var(--primary-soft); padding: 2px 9px; border-radius: 6px; }
.doc-row-title { font-size: 16.5px; font-weight: 700; margin: 2px 0 7px; color: var(--ink); line-height: 1.45; }
.doc-row:hover .doc-row-title { color: var(--primary); }
.doc-row-sum { font-size: 14px; color: var(--ink-2); margin: 0 0 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.doc-row-meta { display: flex; align-items: center; gap: 8px 14px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.doc-row-meta .mi { display: inline-flex; align-items: center; gap: 5px; }
.doc-row-meta .chip { background: var(--line-2); border-radius: 6px; padding: 2px 9px; color: var(--ink-2); font-size: 12px; }

/* ===== Badges ===== */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; line-height: 1.5; }
.badge-loai { background: #e3f5ec; color: #0f6e4a; }
.badge-hl-ConHieuLuc { background: #e7f7ee; color: #0f7a37; }
.badge-hl-HetHieuLuc { background: #f1f3f6; color: #6b7686; }
.badge-hl-ChuaHieuLuc { background: var(--card)5e6; color: #b4730a; }
.badge-hl-KhongRo { background: #f1f3f6; color: #6b7686; }
.badge-linhvuc { background: #eafaf4; color: #0b8a5b; }

/* ===== Layout 2 cột ===== */
.layout { display: grid; grid-template-columns: 270px 1fr; gap: 26px; align-items: start; }
.layout.right { grid-template-columns: 1fr 320px; }
@media (max-width: 920px) { .layout, .layout.right { grid-template-columns: 1fr; } }

/* Facets */
.facets { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 16px 16px; position: sticky; top: 78px; box-shadow: var(--shadow-sm); }
.facets h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 18px 0 8px; }
.facets ul { list-style: none; margin: 0; padding: 0; }
.facets li { padding: 4px 0; font-size: 14px; }
.facets li a { color: var(--ink-2); display: flex; justify-content: space-between; gap: 8px; }
.facets li a:hover { color: var(--primary); }
.facets .count { color: var(--muted); font-size: 12px; background: var(--line-2); border-radius: 999px; padding: 0 8px; }
.facets li.active a { color: var(--primary); font-weight: 700; }

/* ===== Chi tiết (trang vàng) ===== */
.breadcrumb { font-size: 13px; color: var(--muted); padding: 16px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.doc-hero { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 26px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
.doc-hero .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.doc-hero h1 { font-size: 24px; font-weight: 800; margin: 6px 0 0; line-height: 1.35; letter-spacing: -.01em; }
.doc-lead { font-size: 15.5px; color: var(--ink-2); line-height: 1.7; margin: 12px 0 0; max-width: 860px; }

/* Thuộc tính card */
.props-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); margin-bottom: 20px; }
.props-card .ph { background: var(--primary-50); border-bottom: 1px solid var(--line); padding: 12px 18px; font-weight: 800; font-size: 14px; color: var(--ink); }
.props-grid { display: grid; grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) { .props-grid { grid-template-columns: 1fr; } }
.props-grid .pr { display: flex; gap: 10px; padding: 11px 18px; border-bottom: 1px solid var(--line-2); font-size: 14px; }
.props-grid .pr .k { color: var(--muted); min-width: 130px; flex-shrink: 0; }
.props-grid .pr .v { color: var(--ink); font-weight: 600; }
.props-grid .pr a.v { color: var(--primary); }

/* Tóm lược thông minh — điểm nhấn */
.smart { background: linear-gradient(180deg, #fff 0, #f7faff 100%); border: 1.5px solid #cdeede; border-radius: var(--radius); padding: 22px 24px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
.smart .tag { display: inline-flex; align-items: center; gap: 7px; background: var(--primary); color: #fff; font-weight: 700; padding: 5px 13px; border-radius: 999px; font-size: 12.5px; margin-bottom: 14px; }
.smart .lead { font-size: 16px; color: var(--ink); font-weight: 600; margin: 0 0 4px; }
.smart h3 { font-size: 14px; text-transform: uppercase; letter-spacing: .04em; color: var(--primary-dark); margin: 16px 0 6px; }
.smart ul { margin: 6px 0 0; padding-left: 4px; list-style: none; }
.smart ul li { position: relative; padding-left: 24px; margin-bottom: 8px; }
.smart ul li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 800; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 20px; box-shadow: var(--shadow-sm); }
.panel > h2 { font-size: 17px; font-weight: 800; margin: 0 0 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line-2); }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line-2); padding: 14px 0; }
.faq-item:last-child { border-bottom: 0; padding-bottom: 0; }
.faq-item summary { font-weight: 700; cursor: pointer; font-size: 15px; color: var(--ink); list-style: none; display: flex; gap: 10px; }
.faq-item summary::before { content: "?"; flex-shrink: 0; width: 22px; height: 22px; background: var(--primary-soft); color: var(--primary); border-radius: 6px; display: grid; place-items: center; font-weight: 800; font-size: 13px; }
.faq-item p { margin: 10px 0 0 32px; color: var(--ink-2); }

/* Sidebar liên kết / file */
.side-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.side-card h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 10px; }
.rel-group { margin-bottom: 14px; }
.rel-group:last-child { margin-bottom: 0; }
.rel-group .label { font-size: 12px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.rel-group ul { list-style: none; margin: 0; padding: 0; }
.rel-group li { padding: 6px 0; font-size: 13.5px; border-bottom: 1px dashed var(--line); line-height: 1.45; }
.rel-group li:last-child { border-bottom: 0; }
.file-link { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line-2); font-size: 14px; }
.file-link:last-child { border-bottom: 0; }
.file-link .fi { width: 30px; height: 30px; border-radius: 7px; background: #fdecec; color: #d6453c; display: grid; place-items: center; font-size: 11px; font-weight: 800; flex-shrink: 0; }

/* Toàn văn */
.preview-content { font-size: 15.5px; line-height: 1.9; color: #1d2735; max-width: 820px; }
.preview-content p { margin: 0 0 12px; }
.preview-content .prov-chapter, .preview-content .prov-part { font-weight: 800; text-align: center; margin: 24px 0 12px; }
.preview-content .prov-article { font-weight: 700; margin: 22px 0 8px; }
.preview-content .prov-clause { margin: 8px 0; }
.preview-content .prov-item { margin: 6px 0 6px 8px; }
.preview-content table { border-collapse: collapse; width: 100%; margin: 14px 0; }
.preview-content table, .preview-content th, .preview-content td { border: 1px solid var(--line); }
.preview-content th, .preview-content td { padding: 8px 10px; vertical-align: top; }
.preview-content img { max-width: 100%; height: auto; }

/* ===== Buttons / chips ===== */
.btn { display: inline-flex; align-items: center; gap: 7px; border: 0; border-radius: 9px; padding: 10px 18px; font-weight: 700; cursor: pointer; font-size: 14px; transition: background .15s, border-color .15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; text-decoration: none; }
.btn-ghost { background: var(--card); border: 1px solid var(--line); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.btn-gold { background: var(--warn); color: #fff; }
.btn-danger { background: var(--card); border: 1px solid #f3c6c6; color: var(--danger); }
.btn-sm { padding: 7px 13px; font-size: 13px; }

/* ===== Pagination ===== */
.pagination { display: flex; gap: 6px; margin-top: 26px; justify-content: center; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 8px 14px; border: 1px solid var(--line); border-radius: 9px; font-size: 14px; color: var(--ink-2); background: var(--card); font-weight: 600; }
.pagination a:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--line); background: #0f1b2d; color: #aab4c4; padding: 40px 0 24px; margin-top: 48px; }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1.2fr 1fr; gap: 30px; }
@media (max-width: 720px) { .site-footer .cols { grid-template-columns: 1fr; gap: 20px; } }
.site-footer h4 { color: #fff; font-size: 14px; margin: 0 0 12px; }
.site-footer a { color: #aab4c4; display: block; padding: 4px 0; font-size: 14px; }
.site-footer a:hover { color: #fff; }
.site-footer .brand-foot { font-size: 20px; font-weight: 800; color: #fff; }
.site-footer .disclaimer { border-top: 1px solid #1e2c44; margin-top: 26px; padding-top: 18px; font-size: 12.5px; color: #7d8aa0; }

/* ===== Tables / admin (giữ tối giản) ===== */
.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line-2); font-size: 14px; }
.table th { background: var(--bg); font-weight: 700; color: var(--ink-2); }
.table tr:last-child td { border-bottom: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm); }
.stat .num { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat .lbl { color: var(--muted); font-size: 13px; }
.auth-box { max-width: 380px; margin: 70px auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.auth-box label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.auth-box input { width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 9px; font-size: 15px; margin-bottom: 14px; }
.err { color: var(--danger); font-size: 14px; margin-bottom: 10px; }
.flash { background: var(--primary-soft); border: 1px solid #cdeede; border-radius: 9px; padding: 10px 14px; margin-bottom: 16px; font-size: 14px; color: var(--primary-dark); }
label { font-size: 13px; color: var(--muted); }

/* ===== Tài khoản: nút + chip + modal ===== */
.btn-login { background: var(--primary); color: #fff; border: 0; border-radius: 8px; padding: 8px 16px; font-weight: 700; font-size: 14px; cursor: pointer; }
.btn-login:hover { background: var(--primary-dark); }
.user-chip { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; }
.user-chip .uname { font-weight: 700; color: var(--ink); }
.user-chip .utok { background: var(--primary-soft); color: var(--primary-dark); border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 700; }
.linklike { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 13.5px; font-weight: 600; padding: 0; }
.linklike:hover { color: var(--primary); }

.modal-overlay { position: fixed; inset: 0; background: rgba(8,15,30,.55); z-index: 100; display: none; align-items: flex-start; justify-content: center; padding: 56px 16px; overflow-y: auto; }
.modal-overlay.show { display: flex; }
.modal-card { background: var(--card); border-radius: 16px; width: 100%; max-width: 440px; box-shadow: 0 24px 70px rgba(0,0,0,.35); overflow: hidden; }
.modal-head { display: flex; align-items: stretch; border-bottom: 1px solid var(--line); position: relative; }
.modal-head button.tabbtn { flex: 1; padding: 16px; border: 0; background: var(--bg); font-weight: 700; font-size: 15px; cursor: pointer; color: var(--muted); }
.modal-head button.tabbtn.active { background: var(--card); color: var(--primary); box-shadow: inset 0 -2px 0 var(--primary); }
.modal-close { position: absolute; right: 8px; top: 8px; border: 0; background: none; font-size: 20px; cursor: pointer; color: var(--muted); width: 30px; height: 30px; border-radius: 8px; }
.modal-close:hover { background: var(--bg); color: var(--ink); }
.modal-body { padding: 22px 24px 26px; }
.auth-err { color: var(--danger); font-size: 13.5px; margin-bottom: 12px; display: none; background: #fdecec; border-radius: 8px; padding: 9px 12px; }
.auth-field { margin-bottom: 12px; }
.auth-field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.auth-field input, .auth-field select { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; font-size: 14.5px; background: var(--card); color: var(--ink); }
.auth-field input:focus, .auth-field select:focus { outline: none; border-color: var(--primary); }
.auth-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.auth-submit { width: 100%; padding: 12px; background: var(--primary); color: #fff; border: 0; border-radius: 10px; font-weight: 700; font-size: 15px; cursor: pointer; margin-top: 4px; }
.auth-submit:hover { background: var(--primary-dark); }
.auth-or { text-align: center; color: var(--muted); font-size: 13px; margin: 18px 0 14px; border-top: 1px solid var(--line-2); line-height: 0; }
.auth-or span { background: var(--card); padding: 0 12px; }
.oauth-btns { display: flex; flex-direction: column; gap: 9px; }
.oauth-btn { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 11px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); font-weight: 600; font-size: 14px; cursor: pointer; color: var(--ink); }
.oauth-btn:hover { background: var(--bg); text-decoration: none; }
.oauth-btn .ic { width: 18px; height: 18px; font-weight: 800; }
.oauth-btn.g .ic { color: #ea4335; } .oauth-btn.f .ic { color: #1877f2; }

/* Header thương hiệu + thông điệp miễn phí trong modal đăng nhập/đăng ký */
.modal-hero { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 22px 24px 20px; position: relative; }
.modal-hero .free-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.20); color: #fff; font-weight: 700; font-size: 12px; letter-spacing: .2px; padding: 4px 11px; border-radius: 999px; margin-bottom: 11px; }
.modal-hero h2 { margin: 0 0 5px; font-size: 19px; font-weight: 800; color: #fff; }
.modal-hero p { margin: 0; font-size: 13.5px; opacity: .94; line-height: 1.55; }
.modal-card .modal-close { top: 12px; right: 12px; width: 34px; height: 34px; border-radius: 999px; display: flex; align-items: center; justify-content: center; font-size: 22px; line-height: 1; background: rgba(255,255,255,.16); color: #fff; z-index: 2; }
.modal-card .modal-close:hover { background: rgba(255,255,255,.30); color: #fff; }
.modal-head { background: var(--card); }
.reg-free { display: flex; gap: 9px; align-items: flex-start; background: var(--primary-soft); border: 1px solid #b6e3cd; border-radius: 10px; padding: 10px 13px; font-size: 12.8px; color: var(--primary-dark); margin-bottom: 16px; line-height: 1.5; }
.reg-free .ic { font-size: 15px; line-height: 1.3; }
[data-theme="dark"] .reg-free { border-color: #1a4a36; }

/* Dải "miễn phí" ở hero trang chủ */
.hero-free-pill { display: inline-block; background: var(--primary-soft); color: var(--primary-dark); font-size: 13.5px; font-weight: 600; padding: 6px 16px; border-radius: 999px; margin-bottom: 18px; border: 1px solid #b6e3cd; }
.hero-free-pill strong { font-weight: 800; }
[data-theme="dark"] .hero-free-pill { border-color: #1a4a36; }

/* ===== Trang nội dung: Giới thiệu / Liên hệ ===== */
.page-hero { background: linear-gradient(135deg, var(--primary-50) 0%, var(--card) 60%); border-bottom: 1px solid var(--line); }
.page-hero .wrap { max-width: var(--maxw); margin: 0 auto; padding: 52px 20px 48px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.page-hero .eyebrow { display: inline-flex; align-items: center; gap: 7px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 700; font-size: 12.5px; letter-spacing: .3px; text-transform: uppercase; padding: 5px 13px; border-radius: 999px; margin-bottom: 16px; }
.page-hero h1 { font-size: 36px; line-height: 1.18; margin: 0 0 14px; letter-spacing: -.5px; color: var(--ink); }
.page-hero .lede { font-size: 17px; color: var(--ink-2); margin: 0 0 22px; line-height: 1.6; }
.page-hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.page-hero .art { display: flex; justify-content: center; }
.page-hero .art svg { width: 100%; max-width: 380px; height: auto; filter: drop-shadow(0 18px 36px rgba(24,87,196,.16)); }

.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; font-weight: 700; font-size: 15px; padding: 12px 22px; border-radius: 11px; border: 0; cursor: pointer; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; background: var(--card); color: var(--ink); font-weight: 700; font-size: 15px; padding: 12px 22px; border-radius: 11px; border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

.page-block { max-width: var(--maxw); margin: 0 auto; padding: 52px 20px; }
.block-head { text-align: center; max-width: 640px; margin: 0 auto 34px; }
.block-head .eyebrow { display: inline-block; color: var(--primary); font-weight: 700; font-size: 13px; letter-spacing: .4px; text-transform: uppercase; margin-bottom: 8px; }
.block-head h2 { font-size: 27px; margin: 0 0 10px; letter-spacing: -.3px; }
.block-head p { color: var(--muted); margin: 0; font-size: 15.5px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s, border-color .15s; }
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #7fd4ab; }
.feature-card .fic { width: 50px; height: 50px; border-radius: 13px; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.feature-card .fic svg { width: 26px; height: 26px; }
.feature-card h3 { font-size: 17px; margin: 0 0 8px; }
.feature-card p { color: var(--ink-2); font-size: 14.5px; margin: 0; line-height: 1.6; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px 24px; box-shadow: var(--shadow-sm); }
.step .num { width: 40px; height: 40px; border-radius: 11px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-weight: 800; font-size: 18px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step h3 { font-size: 16.5px; margin: 0 0 7px; }
.step p { color: var(--ink-2); font-size: 14.5px; margin: 0; line-height: 1.6; }

.commit-band { background: var(--primary-50); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.commit-list { max-width: var(--maxw); margin: 0 auto; padding: 46px 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.commit { display: flex; gap: 14px; align-items: flex-start; }
.commit .ck { flex: none; width: 30px; height: 30px; border-radius: 999px; background: var(--ok); color: #fff; display: flex; align-items: center; justify-content: center; }
.commit .ck svg { width: 17px; height: 17px; }
.commit h3 { font-size: 16px; margin: 0 0 4px; }
.commit p { color: var(--ink-2); font-size: 14px; margin: 0; line-height: 1.55; }

/* Liên hệ */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; text-align: center; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s; }
.contact-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.contact-card .cic { width: 54px; height: 54px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.contact-card .cic svg { width: 27px; height: 27px; }
.contact-card h3 { font-size: 16.5px; margin: 0 0 6px; }
.contact-card p { color: var(--muted); font-size: 14px; margin: 0 0 12px; line-height: 1.55; }
.contact-card a.mail { font-weight: 700; color: var(--primary); font-size: 15px; word-break: break-all; }
.contact-single { max-width: 540px; margin: 0 auto; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 38px 34px; text-align: center; box-shadow: var(--shadow); }
.contact-single .cic { width: 64px; height: 64px; border-radius: 16px; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.contact-single .cic svg { width: 32px; height: 32px; }
.contact-single .lbl { color: var(--muted); font-size: 13.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .4px; margin-bottom: 6px; }
.contact-single .mail-lg { display: inline-block; font-size: 23px; font-weight: 800; color: var(--primary); margin-bottom: 22px; word-break: break-all; }
.contact-single .mail-lg:hover { color: var(--primary-dark); text-decoration: none; }
.contact-topics { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }
.contact-topics .tp { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-50); color: var(--ink-2); font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); }
.contact-topics .tp svg { width: 14px; height: 14px; color: var(--primary); }
[data-theme="dark"] .contact-topics .tp { background: transparent; }

/* Icon tài khoản + menu thả xuống trên header */
.acct { position: relative; display: inline-flex; }
.acct-btn { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--ink-2); cursor: pointer; padding: 0; }
.acct-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.acct-ic svg { width: 21px; height: 21px; display: block; }
.acct.open .acct-btn { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.acct-menu { position: absolute; right: 0; top: calc(100% + 8px); min-width: 232px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); padding: 6px; display: none; z-index: 80; }
.acct.open .acct-menu { display: block; }
.acct-head { padding: 10px 12px 9px; border-bottom: 1px solid var(--line-2); margin-bottom: 6px; display: flex; flex-direction: column; gap: 4px; }
.acct-head .nm { font-weight: 700; color: var(--ink); font-size: 14.5px; }
.acct-head .tk { font-size: 12px; font-weight: 700; color: var(--primary-dark); background: var(--primary-soft); border-radius: 999px; padding: 2px 10px; align-self: flex-start; }
.acct-menu a, .acct-logout { display: block; width: 100%; text-align: left; padding: 9px 12px; border-radius: 8px; font-size: 14px; color: var(--ink-2); font-weight: 600; border: 0; background: none; cursor: pointer; }
.acct-menu a:hover, .acct-logout:hover { background: var(--primary-50); color: var(--primary); text-decoration: none; }
.acct-div { height: 1px; background: var(--line-2); margin: 6px 4px; }
.acct-logout { color: var(--danger); }
.acct-logout:hover { background: #fdecec; color: var(--danger); }

/* Trang Thông tin tài khoản */
.acct-page { max-width: 640px; margin: 0 auto; }
.acct-card { display: flex; align-items: center; gap: 18px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; box-shadow: var(--shadow-sm); }
.acct-avatar { width: 64px; height: 64px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 28px; font-weight: 800; display: flex; align-items: center; justify-content: center; flex: none; }
.acct-tokens { display: flex; justify-content: space-between; align-items: center; gap: 16px; background: var(--primary-50); border: 1px solid var(--line); border-radius: 14px; padding: 16px 22px; margin-top: 16px; }
.acct-tokens .lbl { color: var(--muted); font-size: 13px; font-weight: 600; }
.acct-tokens .val { font-size: 24px; font-weight: 800; color: var(--primary-dark); }
.acct-tokens .val span { font-size: 15px; color: var(--muted); font-weight: 600; }
.acct-info { background: var(--card); border: 1px solid var(--line); border-radius: 14px; margin-top: 16px; overflow: hidden; }
.acct-info .row { display: flex; justify-content: space-between; gap: 16px; padding: 13px 20px; border-bottom: 1px solid var(--line-2); font-size: 14.5px; }
.acct-info .row:last-child { border-bottom: 0; }
.acct-info .k { color: var(--muted); }
.acct-info .v { color: var(--ink); font-weight: 600; text-align: right; word-break: break-word; }
.acct-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

/* Trang pháp lý: Điều khoản / Chính sách bảo mật */
.legal-hero { background: linear-gradient(135deg, var(--primary-50) 0%, var(--card) 65%); border-bottom: 1px solid var(--line); }
.legal-hero .wrap { max-width: 880px; margin: 0 auto; padding: 46px 20px 38px; }
.legal-hero .eyebrow { display: inline-flex; align-items: center; gap: 7px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 700; font-size: 12.5px; letter-spacing: .3px; text-transform: uppercase; padding: 5px 13px; border-radius: 999px; margin-bottom: 14px; }
.legal-hero h1 { font-size: 33px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -.4px; color: var(--ink); }
.legal-hero .lede { font-size: 16.5px; color: var(--ink-2); margin: 0; line-height: 1.6; max-width: 720px; }
.legal-meta { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; color: var(--muted); font-size: 13.5px; }
.legal-meta span { display: inline-flex; align-items: center; gap: 6px; }
.legal-meta svg { width: 15px; height: 15px; color: var(--primary); }
.legal-body { max-width: 880px; margin: 0 auto; padding: 14px 20px 56px; display: grid; grid-template-columns: 230px 1fr; gap: 40px; align-items: start; }
.toc { position: sticky; top: 88px; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; background: var(--card); font-size: 13.5px; }
.toc h4 { margin: 0 0 10px; font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
.toc ol { margin: 0; padding-left: 18px; }
.toc li { margin-bottom: 7px; line-height: 1.4; }
.toc a { color: var(--ink-2); } .toc a:hover { color: var(--primary); }
.legal-body .prose { max-width: none; }
.legal-body .prose h2 { scroll-margin-top: 84px; display: flex; gap: 10px; align-items: baseline; }
.legal-body .prose h2 .n { color: var(--primary); font-size: 16px; font-weight: 800; }
@media (max-width: 820px) {
  .legal-body { grid-template-columns: 1fr; gap: 8px; }
  .toc { display: none; }
  .legal-hero h1 { font-size: 27px; }
}
.contact-note { max-width: 540px; margin: 26px auto 0; }
.info-box { display: flex; gap: 14px; align-items: flex-start; background: var(--primary-50); border: 1px solid var(--line); border-left: 4px solid var(--primary); border-radius: 12px; padding: 18px 20px; color: var(--ink-2); font-size: 14.5px; line-height: 1.6; }
.info-box .ic { flex: none; color: var(--primary); }
.cta-band { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.cta-band .wrap { max-width: var(--maxw); margin: 0 auto; padding: 44px 20px; text-align: center; color: #fff; }
.cta-band h2 { font-size: 26px; margin: 0 0 10px; color: #fff; }
.cta-band p { margin: 0 0 22px; opacity: .92; font-size: 16px; }
.cta-band .btn-white { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--primary-dark); font-weight: 700; font-size: 15px; padding: 13px 26px; border-radius: 11px; }
.cta-band .btn-white:hover { background: #eef3ff; text-decoration: none; }

[data-theme="dark"] .page-hero, [data-theme="dark"] .commit-band, [data-theme="dark"] .info-box { background-image: none; }

@media (max-width: 860px) {
  .page-hero .wrap { grid-template-columns: 1fr; gap: 28px; }
  .page-hero .art { order: -1; }
  .page-hero .art svg { max-width: 300px; }
  .page-hero h1 { font-size: 28px; }
  .feature-grid, .steps, .commit-list, .contact-grid { grid-template-columns: 1fr; }
}

/* trang nội dung tĩnh (E-E-A-T) */
.prose { max-width: 800px; }
.prose h1 { font-size: 28px; font-weight: 800; margin: 0 0 8px; }
.prose .lede { font-size: 16.5px; color: var(--ink-2); margin: 0 0 24px; }
.prose h2 { font-size: 20px; font-weight: 800; margin: 28px 0 10px; padding-top: 6px; }
.prose h3 { font-size: 16px; font-weight: 700; margin: 18px 0 6px; }
.prose p, .prose li { font-size: 15.5px; line-height: 1.85; color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose a { color: var(--primary); }
.prose .note { background: var(--primary-50); border: 1px solid var(--line); border-left: 3px solid var(--primary); border-radius: 8px; padding: 14px 18px; margin: 18px 0; font-size: 14.5px; }

/* ===== Premium add-ons ===== */
::selection { background: var(--primary-soft); }
.prov-article, .prov-chapter, .prov-part { scroll-margin-top: 130px; }

/* reading progress */
.read-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 60; background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width .1s linear; }

/* doc action toolbar */
.doc-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

/* 3-cột chi tiết: mục lục | nội dung | sidebar */
.layout.detail { display: grid; grid-template-columns: 240px minmax(0, 1fr) 320px; gap: 24px; align-items: start; }
.layout.detail.no-toc { grid-template-columns: minmax(0, 1fr) 320px; }
.layout.detail.no-toc .toc-col { display: none; }
@media (max-width: 1100px) { .layout.detail { grid-template-columns: minmax(0, 1fr) 300px; } .layout.detail .toc-col { display: none; } }
@media (max-width: 920px) { .layout.detail { grid-template-columns: 1fr; } }

/* mục lục */
.toc { position: sticky; top: 130px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow-sm); max-height: calc(100vh - 160px); overflow: auto; }
.toc h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 10px; }
.toc a { display: block; padding: 5px 10px; font-size: 13px; color: var(--ink-2); border-radius: 7px; border-left: 2px solid transparent; line-height: 1.45; }
.toc a:hover { background: var(--primary-50); color: var(--primary); }
.toc a.chapter { font-weight: 700; color: var(--ink); margin-top: 8px; }
.toc a.active { background: var(--primary-soft); color: var(--primary); border-left-color: var(--primary); font-weight: 600; }

/* Hỏi AI — tính năng đáng tiền */
.ai-ask { background: linear-gradient(135deg, #0f6e4a, #168a5f); color: #fff; border-radius: var(--radius); padding: 22px 24px; margin-bottom: 20px; box-shadow: var(--shadow); }
.ai-ask .tag { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 16px; margin-bottom: 4px; }
.ai-ask .sub { color: #cdeede; font-size: 13.5px; margin: 0 0 14px; }
.ai-ask form { display: flex; gap: 6px; background: var(--card); border-radius: 11px; padding: 5px 5px 5px 16px; }
.ai-ask input { flex: 1; border: 0; outline: none; font-size: 14.5px; color: var(--ink); background: transparent; }
.ai-ask form button { border: 0; background: var(--accent); color: #fff; font-weight: 700; border-radius: 8px; padding: 10px 22px; cursor: pointer; }
.ai-ask form button:hover { background: #0c93d4; }
.ai-suggest { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 13px; }
.ai-suggest button { background: rgba(255,255,255,.14); color: #fff; border: 0; border-radius: 999px; padding: 6px 14px; font-size: 13px; cursor: pointer; }
.ai-suggest button:hover { background: rgba(255,255,255,.28); }
.ai-answer { background: var(--card); color: var(--ink); border-radius: 11px; padding: 16px 18px; margin-top: 14px; font-size: 14.5px; line-height: 1.8; white-space: pre-wrap; display: none; }
.ai-answer.show { display: block; }
.ai-answer .who { font-weight: 800; color: var(--primary); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; display: flex; align-items: center; gap: 7px; }
.ai-spinner { width: 15px; height: 15px; border: 2px solid var(--primary-soft); border-top-color: var(--primary); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* dải thống kê (trang chủ) */
.stats-band { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 22px; box-shadow: var(--shadow-sm); }
.stats-band .s { background: var(--card); padding: 20px 16px; text-align: center; }
.stats-band .s .n { font-size: 27px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.stats-band .s .l { color: var(--muted); font-size: 13px; margin-top: 3px; }

/* chip bộ lọc đang áp */
.result-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.active-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.fchip { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-soft); color: var(--primary-dark); border-radius: 999px; padding: 5px 7px 5px 13px; font-size: 13px; font-weight: 600; }
.fchip a { color: var(--primary-dark); display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: rgba(24,87,196,.16); font-size: 12px; line-height: 1; }
.fchip a:hover { background: var(--primary); color: #fff; text-decoration: none; }

/* ===== Dark mode ===== */
html[data-theme="dark"] {
  --ink: #e9eef6; --ink-2: #b9c3d2; --muted: #8593a6;
  --line: #28323f; --line-2: #1f2733; --bg: #0c1320; --card: #141d2b;
  --primary-soft: #103024; --primary-50: #0c2018;
}
html[data-theme="dark"] body { background: var(--bg); color: var(--ink); }
html[data-theme="dark"] .badge-loai { background: #103024; color: #6fd6a6; }
html[data-theme="dark"] .badge-linhvuc { background: #13322a; color: #57d3a3; }
html[data-theme="dark"] .badge-hl-HetHieuLuc, html[data-theme="dark"] .badge-hl-KhongRo { background: #232c38; color: #9aa6b6; }
html[data-theme="dark"] .header-search form { background: #0e1626; }
html[data-theme="dark"] .ai-answer, html[data-theme="dark"] .ai-ask form, html[data-theme="dark"] .hero-search { background: #0e1626; }
html[data-theme="dark"] .ai-ask input, html[data-theme="dark"] .hero-search input { color: var(--ink); }
html[data-theme="dark"] .props-card .ph { background: #16203040; }
html[data-theme="dark"] .smart { background: linear-gradient(180deg, #141d2b 0, #121b2c 100%); border-color: #24344f; }

/* nút đổi nền */
.theme-btn .acct-ic svg { width: 20px; height: 20px; }

/* gợi ý tìm kiếm (autocomplete) */
.ac-box { position: absolute; top: calc(100% + 6px); left: 0; right: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); z-index: 70; overflow: hidden; max-height: 380px; overflow-y: auto; }
.ac-item { display: flex; flex-direction: column; gap: 2px; padding: 9px 14px; border-bottom: 1px solid var(--line-2); }
.ac-item:last-child { border-bottom: 0; }
.ac-item:hover { background: var(--primary-50); text-decoration: none; }
.ac-sh { font-size: 12px; font-weight: 700; color: var(--primary); }
.ac-ti { font-size: 13.5px; color: var(--ink-2); }

/* nút công cụ chung */
.ct-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink-2); border-radius: 7px; padding: 6px 11px; font-size: 13px; font-weight: 600; cursor: pointer; line-height: 1.4; }
.ct-btn:hover { border-color: var(--primary); color: var(--primary); }
.ct-btn.saved { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.content-tools { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.content-tools .font-ctrl { margin-left: 4px; }
.analysis-tools { display: flex; gap: 8px; justify-content: flex-end; margin-bottom: 14px; }

/* phóng to chữ toàn văn */
.font-ctrl { display: inline-flex; gap: 4px; margin-left: auto; }
.font-ctrl button { width: 30px; height: 30px; border: 1px solid var(--line); background: var(--card); border-radius: 7px; cursor: pointer; color: var(--ink-2); font-weight: 700; }
.font-ctrl button:hover { border-color: var(--primary); color: var(--primary); }
.panel > h2.with-ctrl { display: flex; align-items: center; }

/* tô đậm từ khoá */
mark { background: #fff3bf; color: inherit; padding: 0 2px; border-radius: 3px; }
html[data-theme="dark"] mark { background: #5a4a12; color: #ffe69b; }

/* lưu văn bản */
[data-save].saved { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

/* xem gần đây (trang chủ) */
.rv-list { display: flex; flex-direction: column; gap: 2px; }
.rv-item { display: block; padding: 8px 10px; font-size: 13.5px; color: var(--ink-2); border-radius: 8px; border-bottom: 1px dashed var(--line); }
.rv-item:last-child { border-bottom: 0; }
.rv-item:hover { background: var(--primary-50); color: var(--primary); text-decoration: none; }

/* sắp xếp */
.sort-sel { border: 1px solid var(--line); border-radius: 9px; padding: 7px 12px; font-size: 13.5px; background: var(--card); color: var(--ink-2); }

/* ===== Thuộc tính dạng grid dưới tiêu đề (gọn, chia 2 cột cố định) ===== */
.hero-props { display: grid; grid-template-columns: 1fr 1fr; gap: 0 36px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line-2); }
.hero-props .col { display: flex; flex-direction: column; }
.hero-props .p { display: flex; gap: 8px; font-size: 13.5px; padding: 4px 0; border-bottom: 1px dashed var(--line-2); }
.hero-props .col .p:last-child { border-bottom: 0; }
.hero-props .p .k { color: var(--muted); min-width: 116px; flex-shrink: 0; }
.hero-props .p .v { color: var(--ink); font-weight: 600; }
.hero-props .p a.v { color: var(--primary); }
@media (max-width: 700px) { .hero-props { grid-template-columns: 1fr; gap: 0; } }

/* Pill tình trạng hiệu lực (nổi bật) */
.hl-pill { display: inline-flex; align-items: center; gap: 7px; padding: 4px 13px; border-radius: 999px; font-weight: 700; font-size: 13px; }
.hl-pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.hl-ConHieuLuc { background: #e7f7ee; color: #0f7a37; }
.hl-HetHieuLuc { background: #fdecec; color: #c0392b; }
.hl-ChuaHieuLuc { background: #fff5e6; color: #b4730a; }
.hl-KhongRo { background: #f1f3f6; color: #6b7686; }
html[data-theme="dark"] .hl-ConHieuLuc { background: #11331f; color: #4ed18a; }
html[data-theme="dark"] .hl-HetHieuLuc { background: #3a1c1c; color: #f08a82; }
html[data-theme="dark"] .hl-ChuaHieuLuc { background: #3a2c10; color: #ffc35e; }
html[data-theme="dark"] .hl-KhongRo { background: #232c38; color: #9aa6b6; }

/* ===== Tabs (khung trái) ===== */
.tabs { display: flex; gap: 2px; border-bottom: 2px solid var(--line); flex-wrap: wrap; }
.tabs button { border: 0; background: transparent; padding: 12px 18px; font-size: 14.5px; font-weight: 700; color: var(--muted); cursor: pointer; border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tabs button:hover { color: var(--ink); }
.tabs button.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; padding-top: 20px; }
.tab-panel.active { display: block; }
.tab-empty { color: var(--muted); padding: 30px; text-align: center; }

/* Tab Tóm lược: nội dung trái + Hỏi AI phải */
.tomluoc-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 24px; align-items: start; }
@media (max-width: 920px) { .tomluoc-wrap { grid-template-columns: 1fr; } }
.tomluoc-side .ai-ask { position: sticky; top: 130px; margin-bottom: 0; }
.impact-list { margin: 0; padding: 0; list-style: none; }
.impact-list li { position: relative; padding: 9px 0 9px 28px; border-bottom: 1px solid var(--line-2); font-size: 14.5px; color: var(--ink-2); }
.impact-list li:last-child { border-bottom: 0; }
.impact-list li::before { content: "◆"; position: absolute; left: 5px; top: 10px; color: var(--accent); font-size: 11px; }

/* Nội dung + mục lục trong tab */
.noidung-wrap { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 20px; align-items: start; }
.noidung-wrap .toc { top: 130px; }
@media (max-width: 760px) { .noidung-wrap { grid-template-columns: 1fr; } .noidung-wrap .toc-col2 { display: none; } }

/* ===== Bản in ===== */
@media print {
  .site-header, .site-footer, .read-progress, .ai-ask, .toc-col, .toc-col2, .doc-actions, .breadcrumb, aside, .theme-btn, .tabs, .font-ctrl { display: none !important; }
  .layout, .layout.right, .layout.detail { display: block !important; }
  .tab-panel { display: block !important; }
  .noidung-wrap { display: block !important; }
  body { background: #fff; }
  .panel, .props-card, .smart, .doc-hero { box-shadow: none; border-color: #ccc; }
  a { color: #000; text-decoration: none; }
}