/* ============================================================
   DESIGN TOKENS
   Bảng màu: xanh đêm dược phẩm (tin cậy, lâm sàng) + xanh lá lab
   (hoạt chất, sự sống) + thang màu mức độ cảnh báo làm điểm nhấn
   xuyên suốt hệ thống (đây là dữ liệu thật: mức độ tương tác thuốc)
   ============================================================ */
:root {
  --ink-900: #0b1f3a;      /* nền tối, chữ chính - xanh navy đậm theo logo */
  --ink-700: #12315a;
  --navy-600: #1a4d8f;     /* xanh dương thương hiệu chính (khớp logo) */
  --navy-500: #2568b3;
  --sky-400: #4a9fe0;      /* xanh dương sáng - dải gradient logo */
  --sage-500: #1a4d8f;     /* dùng lại làm alias cho accent chính, tránh sửa toàn bộ template */
  --sage-100: #e5f0fa;
  --paper-0: #f5f8fb;      /* nền trang - trắng ngả xanh rất nhẹ */
  --paper-50: #ffffff;
  --line-200: #dbe4ee;
  --line-100: #eaf0f6;
  --text-muted: #57708a;

  /* Thang mức độ - dùng nhất quán cho tương tác / tương kỵ */
  --level-nhe: #1a4d8f;         /* nhẹ - xanh dương thương hiệu */
  --level-trungbinh: #d99a3d;   /* trung bình - amber */
  --level-nang: #d9633d;        /* nặng - burnt orange */
  --level-cctd: #c73e3e;        /* chống chỉ định - đỏ, khớp chữ thập trên logo */

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-full: 999px;
  --shadow-sm: 0 8px 20px -14px rgba(16, 25, 43, 0.28);
  --shadow-md: 0 16px 32px -18px rgba(16, 25, 43, 0.32);
  --shadow-lg: 0 24px 48px -20px rgba(16, 25, 43, 0.38);
  --font-display: 'Manrope', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper-0);
  color: var(--ink-900);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.site-main {
  flex: 1 0 auto;
}
.site-footer {
  flex-shrink: 0;
}

a { color: inherit; text-decoration: none; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  background: var(--ink-900);
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sage-500);
  color: #fff;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.brand-logo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 50%;
}

.brand-logo-sm { width: 40px; height: 40px; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong.brand-primary { font-family: var(--font-display); font-size: 19px; font-weight: 800; letter-spacing: 0.01em; line-height: 1.1; }
.brand-text small { font-size: 11.5px; color: rgba(255,255,255,0.55); letter-spacing: 0.02em; }

/* Menu giờ luôn gói gọn trong 1 dropdown (mọi kích thước màn hình) */
.nav-dropdown { position: relative; }

.nav-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 9px 14px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.11); }

.nav-toggle-icon { display: flex; flex-direction: column; gap: 3px; }
.nav-toggle-icon span { display: block; width: 16px; height: 2px; background: #fff; border-radius: 1px; }

.nav-toggle-label { white-space: nowrap; }

.nav-toggle-caret { transition: transform 0.15s; flex-shrink: 0; }
.nav-dropdown[data-open="true"] .nav-toggle-caret { transform: rotate(180deg); }
.nav-dropdown[data-open="true"] .nav-toggle {
  background: var(--sky-400);
  border-color: var(--sky-400);
}

.main-nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 240px;
  background: var(--ink-900);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
  z-index: 50;
}

.main-nav.open { display: flex; }

.main-nav a {
  color: rgba(255,255,255,0.72);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.main-nav a:hover { color: #fff; background: rgba(255,255,255,0.07); }
.main-nav a.active { color: #fff; background: var(--sky-400); }
.main-nav a.nav-admin-link {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.6);
}
.main-nav a.nav-admin-link:hover { color: #fff; }

@media (max-width: 900px) {
  /* Bug cũ: left:0 + right:0 khiến hộp menu bị co hẹp bằng đúng bề rộng
     nút hamburger (vì .nav-dropdown ở sát mép phải, rất hẹp), chữ trong
     menu tràn ra ngoài màn hình. Sửa bằng position:fixed neo theo
     viewport, không phụ thuộc bề rộng của nút bấm. */
  .main-nav {
    position: fixed;
    top: 76px;
    left: 12px;
    right: 12px;
    width: auto;
    min-width: 0;
    max-height: calc(100dvh - 92px);
    overflow-y: auto;
  }
  .nav-toggle-label { display: none; }
}

/* ============================================================
   HERO / SEARCH
   ============================================================ */
.hero {
  background: linear-gradient(165deg, var(--ink-900) 0%, var(--navy-600) 62%, var(--navy-500) 100%);
  color: #fff;
  padding: 72px 24px 92px;
}

.hero-inner { max-width: 780px; margin: 0 auto; text-align: center; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky-400);
  margin-bottom: 18px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 14px;
}

.hero p {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 34px;
}

.hero-search {
  display: flex;
  background: #fff;
  border-radius: 999px;
  padding: 6px 6px 6px 22px;
  box-shadow: 0 20px 40px -12px rgba(0,0,0,0.45);
  max-width: 560px;
  margin: 0 auto;
  border: 2px solid transparent;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.hero-search:focus-within {
  border-color: var(--sky-400);
  box-shadow: 0 0 0 5px rgba(74, 159, 224, 0.28), 0 20px 40px -12px rgba(0,0,0,0.45);
}

.hero-search input {
  flex: 1;
  border: 0;
  outline: none;
  font-size: 15px;
  font-family: var(--font-body);
  color: var(--ink-900);
  padding-left: 30px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2357708a' stroke-width='2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><line x1='21' y1='21' x2='16.65' y2='16.65'/></svg>");
  background-repeat: no-repeat;
  background-position: left center;
  background-size: 18px;
}

.hero-search button {
  background: var(--ink-900);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s;
}

.hero-search button:hover { background: var(--navy-500); }

/* ============================================================
   CATEGORY CARDS (trang chủ)
   ============================================================ */
.category-grid {
  max-width: 1180px;
  margin: -50px auto 80px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.category-card {
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: "";
  position: absolute;
  top: -44px;
  right: -44px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--accent-bg, var(--sage-100));
  z-index: 0;
}

.category-card > * { position: relative; z-index: 1; }

.category-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-color, var(--sage-500));
}

.category-card-arrow {
  position: absolute;
  top: 22px;
  right: 20px;
  color: var(--line-200);
  transition: transform 0.15s, color 0.15s;
  z-index: 1;
}
.category-card:hover .category-card-arrow { color: var(--accent-color, var(--sage-500)); transform: translate(2px, -2px); }

.category-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-bg, var(--sage-100));
  color: var(--accent-color, var(--sage-500));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}

.category-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0;
}

.category-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin: 0;
}

.category-card-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent-color, var(--sage-500));
  background: var(--accent-bg, var(--sage-100));
  padding: 3px 10px;
  border-radius: 999px;
  align-self: flex-start;
}

.category-card-accent-0 { --accent-color: var(--sage-500); --accent-bg: var(--sage-100); }
.category-card-accent-1 { --accent-color: var(--level-trungbinh); --accent-bg: #faf0dd; }
.category-card-accent-2 { --accent-color: var(--sky-400); --accent-bg: #e8f4fd; }
.category-card-accent-3 { --accent-color: var(--level-nang); --accent-bg: #fbe6dd; }
.category-card-accent-4 { --accent-color: #7a4dd9; --accent-bg: #efe8fb; }
.category-card-accent-5 { --accent-color: #1f9d7c; --accent-bg: #e2f5ef; }
.category-card-accent-6 { --accent-color: var(--level-cctd); --accent-bg: #fbdede; }

/* ============================================================
   NHÓM THUỐC GRID (trang danh mục thuốc / nhà thuốc bv — chọn nhóm)
   Card có điểm nhấn màu xoay vòng để dễ phân biệt các nhóm,
   dùng riêng cho trang liệt kê nhóm (khác .category-card trang chủ).
   ============================================================ */
.nhom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}

.nhom-card {
  position: relative;
  overflow: hidden;
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.nhom-card::before {
  content: "";
  position: absolute;
  top: -46px;
  right: -46px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: var(--accent-bg);
  z-index: 0;
}

.nhom-card > * { position: relative; z-index: 1; }

.nhom-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 42px -22px rgba(16, 25, 43, 0.38);
  border-color: var(--accent-color);
}

.nhom-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-bg);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.nhom-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  margin: 0;
  color: var(--ink-900);
  line-height: 1.3;
}

.nhom-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.nhom-card-count {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--accent-color);
  background: var(--accent-bg);
  padding: 5px 12px;
  border-radius: 999px;
}

.nhom-card-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--paper-0);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s, transform 0.15s;
}

.nhom-card:hover .nhom-card-arrow {
  background: var(--ink-900);
  color: #fff;
  transform: translateX(2px);
}

.nhom-card-accent-0 { --accent-color: var(--sage-500); --accent-bg: var(--sage-100); }
.nhom-card-accent-1 { --accent-color: var(--level-trungbinh); --accent-bg: #faf0dd; }
.nhom-card-accent-2 { --accent-color: var(--sky-400); --accent-bg: #e8f4fd; }
.nhom-card-accent-3 { --accent-color: var(--level-nang); --accent-bg: #fbe6dd; }

/* ============================================================
   GENERIC PAGE / SEARCH SECTIONS
   ============================================================ */
.page-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 44px 24px 8px;
}

.page-header .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage-500);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: 28px;
  margin: 8px 0 6px;
}

.page-header p { color: var(--text-muted); margin: 0; max-width: 620px; }

.search-panel {
  max-width: 1180px;
  margin: 24px auto 0;
  padding: 0 24px;
}

.search-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 10px 24px -18px rgba(16, 25, 43, 0.25);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.search-form:focus-within {
  border-color: var(--sage-500);
  box-shadow: 0 0 0 3px rgba(26, 77, 143, 0.1);
}

.search-form input[type="text"] {
  flex: 1;
  min-width: 180px;
  padding: 10px 14px 10px 40px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2357708a' stroke-width='2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><line x1='21' y1='21' x2='16.65' y2='16.65'/></svg>");
  background-repeat: no-repeat;
  background-position: 13px center;
  background-size: 16px;
}

.search-form input[type="text"]:focus { outline: none; border-color: var(--sky-400); }

.search-form button {
  background: var(--ink-900);
  color: #fff;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

.search-form button:hover { background: var(--navy-500); }

.results-panel {
  max-width: 1180px;
  margin: 24px auto 80px;
  padding: 0 24px;
}

.result-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 12px;
  background: transparent;
}

.result-table thead th {
  text-align: left;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: transparent;
  padding: 0 20px 8px;
  border: none;
}

.result-table tbody tr {
  background: var(--paper-50);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.result-table tbody tr:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.result-table td {
  padding: 16px 20px;
  border: none;
  border-top: 1px solid var(--line-100);
  border-bottom: 1px solid var(--line-100);
  font-size: 14px;
  vertical-align: top;
}

.result-table td:first-child {
  border-left: 1px solid var(--line-100);
  border-top-left-radius: 14px;
  border-bottom-left-radius: 14px;
}

.result-table td:last-child {
  border-right: 1px solid var(--line-100);
  border-top-right-radius: 14px;
  border-bottom-right-radius: 14px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  background: var(--paper-50);
  border: 1px dashed var(--line-200);
  border-radius: var(--radius-md);
}

@media (max-width: 700px) {
  .result-table { display: block; }
  .result-table thead { display: none; }
  .result-table tbody { display: block; }
  .result-table tbody tr {
    display: block;
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 12px;
  }
  .result-table td {
    display: flex;
    gap: 10px;
    padding: 7px 0;
    border: none !important;
    border-radius: 0 !important;
    font-size: 13.5px;
  }
  .result-table td:not(:first-child)::before {
    content: attr(data-nhan);
    flex-shrink: 0;
    width: 40%;
    color: var(--text-muted);
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding-top: 1px;
  }
}

.empty-state-icon {
  width: 52px; height: 52px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--paper-0);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--line-200);
  border: 1px solid var(--line-200);
}

/* ============================================================
   DRUG GRID (danh sách thuốc trong 1 nhóm / kết quả tìm kiếm)
   Card ảnh + tên + hoạt chất — tách riêng khỏi .category-card
   (dùng cho trang chủ) để dễ tinh chỉnh độc lập.
   ============================================================ */
.drug-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.drug-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.drug-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -16px rgba(16, 25, 43, 0.28);
  border-color: var(--sage-500);
}

.drug-card-thumb {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--paper-0);
  border: 1px solid var(--line-100);
}

.drug-card-thumb-fallback {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--sage-500);
  background: var(--sage-100);
}

.drug-card-body { min-width: 0; }

.drug-card-body h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 3px;
  color: var(--ink-900);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.drug-card-body p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 32px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-200);
  background: var(--paper-50);
  color: var(--ink-900);
  font-size: 13.5px;
  font-weight: 600;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.page-btn:hover { border-color: var(--sage-500); color: var(--sage-500); }
.page-btn.is-disabled { color: var(--line-200); border-color: var(--line-100); cursor: not-allowed; pointer-events: none; }

.page-numbers { display: flex; align-items: center; gap: 4px; margin: 0 4px; }

.page-num {
  min-width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  transition: background 0.15s, color 0.15s;
}
.page-num:hover { background: var(--paper-0); color: var(--ink-900); }
.page-num.is-current { background: var(--ink-900); color: #fff; }

.page-ellipsis { color: var(--line-200); padding: 0 2px; font-weight: 700; }

.pagination-summary {
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 10px 0 0;
}

@media (max-width: 480px) {
  .page-btn span { display: none; }
  .page-btn { padding: 9px; }
}

/* ============================================================
   DRUG DETAIL PAGE (trang chi tiết 1 thuốc)
   ============================================================ */
.drug-detail {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.drug-detail-media { flex-shrink: 0; width: 220px; }

.drug-detail-media img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-200);
  display: block;
}

.drug-detail-media-fallback {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  background: var(--sage-100);
  color: var(--sage-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 48px;
}

.drug-detail-card {
  flex: 1;
  min-width: 280px;
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.drug-detail-section {
  padding: 18px 22px;
  border-bottom: 1px solid var(--line-100);
}
.drug-detail-section:last-child { border-bottom: none; }

.drug-detail-section-label {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  margin: 0 0 10px;
}

.drug-detail-section-empty { color: var(--text-muted); font-size: 14px; }

/* Thang mức độ - badge dùng chung cho tương tác/tương kỵ thuốc */
.badge-level {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.badge-level::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.badge-nhe { background: var(--sage-100); color: #16437d; }
.badge-trungbinh { background: #faf0dd; color: #9c6b1f; }
.badge-nang { background: #fbe6dd; color: #a34424; }
.badge-chong_chi_dinh { background: #fbdede; color: #a32424; }
.badge-tuong_hop { background: var(--sage-100); color: #16437d; }
.badge-tuong_ky { background: #fbdede; color: #a32424; }
.badge-chua_xac_dinh { background: var(--line-100); color: var(--text-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--ink-900);
  color: rgba(255,255,255,0.5);
  padding: 22px 24px;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sky-400), var(--level-trungbinh), var(--level-nang), var(--level-cctd));
}
.footer-inner { max-width: 1180px; margin: 0 auto; font-size: 12.5px; }

/* Accessibility: focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--sage-500);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ============================================================
   ADMIN LAYOUT
   ============================================================ */
.admin-shell {
  display: flex;
  min-height: 100vh;
  background: var(--paper-0);
}

.admin-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11, 31, 58, 0.45);
  backdrop-filter: blur(2px);
  z-index: 45;
}
.admin-overlay.is-open { display: block; }

.admin-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--ink-900);
  color: rgba(255,255,255,0.75);
  padding: 22px 16px 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.admin-sidebar .brand {
  color: #fff;
  margin-bottom: 18px;
  padding: 2px 6px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.admin-sidebar .brand .brand-text small { color: rgba(255,255,255,0.5); }

/* Dòng credit: tách riêng khỏi link thương hiệu nên không dính hiệu ứng hover của logo */
.admin-sidebar .sidebar-credit {
  margin: -6px 0 14px;
  padding: 0 12px;
  font-size: 11px;
  font-style: italic;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: rgba(255,255,255,0.6);
  cursor: default;
  user-select: none;
}

.admin-sidebar a {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  position: relative;
}

.admin-sidebar a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.admin-sidebar a.active {
  background: rgba(74, 159, 224, 0.16);
  color: #fff;
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--sky-400);
}

.admin-sidebar .section-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.35);
  padding: 16px 12px 6px;
}

.admin-main { flex: 1; min-width: 0; }

/* ---------- Topbar ---------- */
.admin-topbar {
  height: 64px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 30;
}

.admin-topbar-left { display: flex; align-items: center; gap: 14px; min-width: 0; }

.admin-topbar-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Nút hamburger - chỉ hiện trên mobile */
.admin-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  flex-shrink: 0;
}
.admin-menu-btn span {
  display: block;
  width: 16px;
  height: 1.6px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.admin-menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.6px) rotate(45deg); }
.admin-menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.admin-menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.6px) rotate(-45deg); }

/* ---------- User menu (avatar + dropdown) ---------- */
.admin-user-menu { position: relative; flex-shrink: 0; }

.user-chip-btn {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px 6px 6px;
  border: 1px solid var(--line-200);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  font-family: var(--font-body);
}
.user-chip-btn:hover { border-color: var(--sky-400); }

.user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--navy-600), var(--sky-400));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}
.user-avatar-lg { width: 38px; height: 38px; font-size: 15px; }

.user-chip-name {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-900);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-chip-chevron { color: var(--text-muted); transition: transform 0.15s; flex-shrink: 0; }
.user-chip-btn[aria-expanded="true"] .user-chip-chevron { transform: rotate(180deg); }

.user-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 232px;
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  box-shadow: 0 18px 40px -12px rgba(11, 31, 58, 0.28);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
  z-index: 35;
}
.user-dropdown.is-open { opacity: 1; visibility: visible; transform: translateY(0); }

.user-dropdown-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line-100);
}
.user-dropdown-head strong { display: block; font-size: 13.5px; color: var(--ink-900); }
.user-dropdown-head small { font-size: 12px; color: var(--text-muted); }

.user-dropdown a {
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-900);
}
.user-dropdown a:hover { background: var(--paper-0); }
.user-dropdown a.logout { color: var(--level-cctd); font-weight: 600; }

.admin-body { padding: 28px; max-width: 1100px; }

.admin-page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-page-head h1 { font-family: var(--font-display); font-size: 22px; margin: 0; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn-primary { background: var(--ink-900); color: #fff; }
.btn-primary:hover { background: var(--navy-500); }
.btn-outline { background: transparent; border: 1px solid var(--line-200); color: var(--ink-900); }
.btn-outline:hover { border-color: var(--sage-500); color: var(--sage-500); }
.btn-danger { background: #fff; color: var(--level-cctd); border: 1px solid #f0c9c9; }
.btn-danger:hover { background: #fdf1f1; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }

/* Stat cards (dashboard) */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 8px;
}
.stat-card {
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}
.stat-card .stat-value {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  color: var(--ink-900);
}
.stat-card .stat-label {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Forms (admin CRUD) */
.admin-form-card {
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  padding: 26px;
  max-width: 720px;
}

.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink-900);
}
.form-row input[type="text"],
.form-row input[type="password"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
}
.form-row textarea { min-height: 90px; resize: vertical; }
.form-row .field-errors { color: var(--level-cctd); font-size: 12.5px; margin-top: 5px; }
.form-actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }

/* Lưới 2 cột dùng chung cho các form admin (vd. bài viết: Danh mục + Trạng
   thái). Trước đây một số form viết inline "grid-template-columns: 1fr 1fr"
   thẳng trong HTML, KHÔNG có breakpoint mobile — trên điện thoại 2 cột bị
   bóp quá hẹp khiến label, dropdown, link phụ đè/lệch lên nhau lung tung.
   Class này luôn có sẵn fallback 1 cột dưới 640px. */
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) {
  .form-grid-2 { grid-template-columns: 1fr; }
}

/* Hàng "label + link phụ" (vd. "Danh mục ... + Thêm danh mục") — cho phép
   xuống dòng thay vì bị bóp/tràn khi cột đã hẹp sẵn trên mobile. */
.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.form-label-row label { margin-bottom: 0; }

/* ---------- Nhóm checkbox (chọn nhiều - vd: nhiều hoạt chất) ---------- */
.checkbox-group {
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  background: #fff;
  max-height: 220px;
  overflow-y: auto;
  padding: 6px;
  margin-top: 4px;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  font-weight: 400;
  font-size: 13.5px;
  color: var(--ink-900);
  cursor: pointer;
}
.checkbox-item:hover { background: var(--paper-0); }
.checkbox-item input[type="checkbox"] { width: 15px; height: 15px; flex-shrink: 0; accent-color: var(--sage-500); }

/* ---------- Ô chọn gõ-để-tìm (searchable dropdown) ---------- */
.ss-wrap { position: relative; }
.ss-native-select {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.ss-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2357708a' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  cursor: text;
}
.ss-input:focus { border-color: var(--sage-500); outline: none; }
.ss-dropdown {
  position: absolute;
  z-index: 30;
  top: calc(100% + 4px);
  left: 0; right: 0;
  max-height: 240px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(11, 31, 58, 0.12);
  padding: 4px;
}
.ss-option {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink-900);
  cursor: pointer;
}
.ss-option.is-active,
.ss-option:hover { background: var(--sage-100); }
.ss-option.is-selected { color: var(--sage-500); font-weight: 600; }
.ss-empty { padding: 10px; font-size: 13px; color: var(--text-muted); }

/* ---------- Khối "Hoạt chất" nhiều dòng ---------- */
.hc-multi { margin-top: 4px; }
.hc-rows { display: flex; flex-direction: column; gap: 8px; }
.hc-row { display: flex; align-items: center; gap: 8px; }
.hc-row .ss-wrap { flex: 1; }
.hc-remove-btn {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-200);
  background: #fff;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.hc-remove-btn:hover { border-color: var(--level-cctd); color: var(--level-cctd); background: #fdf1f1; }
.hc-add-btn { margin-top: 10px; }

/* ---------- Trình soạn thảo văn bản kiểu Word (Quill) ---------- */
.rich-editor-hidden { display: none !important; }

.rich-editor-wrap .ql-toolbar.ql-snow {
  border: 1px solid var(--line-200);
  border-bottom: 0;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: var(--paper-0);
  font-family: var(--font-body);
}
.rich-editor-wrap .ql-container.ql-snow {
  border: 1px solid var(--line-200);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
}
.rich-editor-wrap .ql-editor { min-height: 130px; line-height: 1.55; color: var(--ink-900); }
.rich-editor-wrap .ql-editor img { max-width: 100%; border-radius: 6px; }
.rich-editor-wrap .ql-editor.ql-blank::before { color: #9aa8b8; font-style: normal; }
.rich-editor-wrap .ql-snow .ql-picker { font-family: var(--font-body); }
.rich-editor-wrap:focus-within .ql-toolbar.ql-snow,
.rich-editor-wrap:focus-within .ql-container.ql-snow { border-color: var(--sage-500); }


/* Flash messages */
.flash-list { max-width: 1100px; margin: 0 auto; padding: 18px 28px 0; }
.flash-msg {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  margin-bottom: 10px;
  border: 1px solid transparent;
}
.flash-success { background: var(--sage-100); color: #2e6b5c; border-color: #c9e6dc; }
.flash-error { background: #fbdede; color: #a32424; border-color: #f0c9c9; }
.flash-warning { background: #faf0dd; color: #9c6b1f; border-color: #f0dcb0; }

/* Login page */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(165deg, var(--ink-900) 0%, var(--navy-600) 100%);
  padding: 20px;
}
.login-card {
  background: var(--paper-50);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
}
.login-card .brand-mark {
  margin: 0 auto 18px;
}
.login-card h1 {
  font-family: var(--font-display);
  font-size: 20px;
  text-align: center;
  margin: 0 0 6px;
}
.login-card p.sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 26px;
}

.admin-empty {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
}

/* ---------- Nội dung rich-text hiển thị ở trang công khai ---------- */
.rich-content { color: var(--ink-900); line-height: 1.65; }
.rich-content p { margin: 0 0 12px; }
.rich-content p:last-child { margin-bottom: 0; }
.rich-content h1, .rich-content h2, .rich-content h3 {
  font-family: var(--font-display);
  margin: 18px 0 8px;
  line-height: 1.3;
}
.rich-content h1 { font-size: 20px; }
.rich-content h2 { font-size: 17px; }
.rich-content h3 { font-size: 15px; }
.rich-content ul, .rich-content ol { margin: 0 0 12px; padding-left: 22px; }
.rich-content li { margin-bottom: 4px; }
.rich-content blockquote {
  margin: 0 0 12px;
  padding: 10px 16px;
  border-left: 3px solid var(--sky-400);
  background: var(--paper-0);
  color: var(--text-muted);
}
.rich-content a { color: var(--navy-600); text-decoration: underline; }
.rich-content strong { font-weight: 700; }
.rich-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 16px auto;
  border-radius: var(--radius-md, 10px);
  border: 1px solid var(--line-200);
}


.table-actions { display: flex; gap: 8px; }

/* ---------- Responsive: điện thoại / tablet nhỏ ---------- */
@media (max-width: 900px) {
  .admin-topbar { padding: 0 16px; }
  .user-chip-name { display: none; }
  .user-chip-btn { padding: 6px; }
  .user-chip-chevron { display: none; }
}

@media (max-width: 800px) {
  .admin-menu-btn { display: flex; }

  .admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    width: 78vw;
    max-width: 300px;
    z-index: 50;
    box-shadow: 24px 0 48px -24px rgba(11, 31, 58, 0.4);
    transform: translateX(-100%);
    transition: transform 0.22s ease;
  }
  .admin-sidebar.is-open { transform: translateX(0); }
  .admin-sidebar .brand { display: flex; }
  .admin-sidebar .section-label { display: block; }

  .admin-body { padding: 18px; }
  .admin-topbar-title { display: none; }
}

@media (max-width: 480px) {
  .admin-body { padding: 14px; }
  .admin-page-head { align-items: stretch; }
  .admin-page-head .btn { width: 100%; justify-content: center; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .admin-form-card { padding: 18px; }
  .user-dropdown { right: -4px; width: 210px; }
}

/* ============================================================
   ADMIN PAGINATION
   ============================================================ */
.adm-pt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  flex-wrap: wrap;
  gap: 10px;
}
.adm-pt-info { font-size: 12.5px; color: var(--text-muted); }
.adm-pt-btns { display: flex; align-items: center; gap: 4px; }
.adm-pt-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 34px; padding: 0 6px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  background: var(--paper-50); color: var(--ink-900);
  transition: background 0.12s, border-color 0.12s;
  cursor: pointer;
}
.adm-pt-btn:hover { background: var(--sage-100); border-color: var(--navy-500); color: var(--navy-600); }
.adm-pt-cur { background: var(--navy-600) !important; border-color: var(--navy-600) !important; color: #fff !important; font-weight: 700; }
.adm-pt-dis { opacity: 0.35; pointer-events: none; cursor: default; }
.adm-pt-ell { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 34px; font-size: 13px; color: var(--text-muted); }

/* Admin list table improvements */
.adm-table-wrap {
  background: var(--paper-50);
  border: 1px solid var(--line-200);
  border-radius: var(--radius-md);
  /* Trước đây là overflow:hidden — trên điện thoại, bảng rộng hơn màn hình
     nên cột thao tác (Sửa/Xoá) ở cuối bảng bị CẮT MẤT hoàn toàn, không thể
     bấm được. Đổi sang overflow-x:auto để có thể vuốt ngang xem hết bảng,
     kết hợp sticky cột thao tác bên dưới để Sửa/Xoá luôn hiện sẵn, không
     cần vuốt tới cuối mới thấy. */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow-sm);
}
.adm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.adm-table thead { background: var(--paper-0); }
.adm-table th {
  padding: 11px 16px;
  text-align: left;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--line-200);
  white-space: nowrap;
}
.adm-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-100);
  vertical-align: middle;
  color: var(--ink-900);
}
.adm-table tbody tr:last-child td { border-bottom: none; }
.adm-table tbody tr:hover td { background: #f7faff; }
.adm-table td.td-actions { white-space: nowrap; width: 1px; }

/* Cột tên/tiêu đề chính (biệt dược, hoạt chất, bài viết...) — giới hạn
   MỖI DÒNG CHỈ 1 HÀNG, chữ dài quá sẽ tự cắt và hiện dấu "…" ở cuối, thay
   vì xuống dòng dài ngoằng làm mỗi dòng bảng cao thấp lộn xộn. Có thêm
   thuộc tính title="..." trên chữ để di chuột (desktop) vẫn xem được đầy
   đủ nội dung khi bị cắt.
   .col-title (td)       → giới hạn độ rộng tối đa của cả cột.
   .col-title-text (span)→ phần tử con thật sự thực hiện cắt "…" — tách
   riêng vì <td> với table-layout mặc định (auto) không phải lúc nào cũng
   cắt chữ ổn định ở mọi trình duyệt, còn 1 span/div block con bên trong
   thì luôn cắt đúng theo chiều rộng đã được cha giới hạn. */
.adm-table td.col-title { max-width: 260px; }
.col-title-text {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: default;
}
.col-title-badges { margin-top: 4px; display: flex; gap: 6px; flex-wrap: wrap; }

.adm-table td.col-desc {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Trên điện thoại: ghim cột Sửa/Xoá vào mép phải màn hình khi vuốt ngang,
   để luôn thấy và bấm được ngay mà không cần vuốt hết bảng. */
@media (max-width: 700px) {
  .adm-table th:last-child,
  .adm-table td.td-actions {
    position: sticky;
    right: 0;
    z-index: 1;
    background: var(--paper-50);
    box-shadow: -8px 0 10px -8px rgba(11, 31, 58, 0.18);
  }
  .adm-table thead th:last-child { background: var(--paper-0); box-shadow: -8px 0 10px -8px rgba(11, 31, 58, 0.12); }
  .adm-table tbody tr:hover td.td-actions { background: #f7faff; }
}

.adm-search-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.adm-search-row input {
  flex: 1;
  max-width: 340px;
  padding: 9px 13px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: var(--font-body);
  background: var(--paper-50);
  transition: border-color 0.13s;
  outline: none;
}
.adm-search-row input:focus { border-color: var(--navy-500); }

.adm-badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--sage-100);
  color: var(--navy-600);
  white-space: nowrap;
}
.adm-badge-alt { background: var(--line-100); color: var(--text-muted); }

.adm-thumb {
  width: 38px; height: 38px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--paper-0);
  border: 1px solid var(--line-200);
}
.adm-thumb-placeholder {
  width: 38px; height: 38px;
  border-radius: 6px;
  background: var(--sage-100);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--navy-600);
  font-size: 16px;
}

.row-act { display: inline-flex; align-items: center; gap: 6px; }
.row-act a, .row-act button {
  display: inline-flex; align-items: center;
  padding: 5px 11px;
  border-radius: 6px;
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid var(--line-200);
  background: var(--paper-50);
  color: var(--ink-900);
  cursor: pointer;
  font-family: var(--font-body);
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
}
.row-act a:hover { border-color: var(--navy-500); color: var(--navy-500); background: var(--sage-100); }
.row-act .act-del { color: var(--level-cctd); border-color: #f0c9c9; }
.row-act .act-del:hover { background: #fff5f5; border-color: var(--level-cctd); }

/* ============================================================
   SECTION BÀI VIẾT MỚI NHẤT — TRANG CHỦ
   ============================================================ */
.tc-bai-viet-wrap {
  background: var(--ink-900);
  padding: 56px 24px 64px;
  margin-top: 40px;
}
.tc-bai-viet-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.tc-bai-viet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 12px;
}
.tc-bai-viet-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tc-bv-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--sky-400);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74,159,224,.5); }
  50% { box-shadow: 0 0 0 8px rgba(74,159,224,0); }
}
.tc-bv-xem-them {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--sky-400);
  border: 1.5px solid rgba(74,159,224,.35);
  border-radius: var(--radius-sm);
  padding: 7px 16px;
  transition: all .15s;
}
.tc-bv-xem-them:hover {
  background: rgba(74,159,224,.12);
  border-color: var(--sky-400);
}

/* Grid 4 bài */
.tc-bv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* Card bài viết trang chủ */
.tc-bv-card {
  background: rgba(255,255,255,.06);
  border: 1.5px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  transition:
    transform .22s cubic-bezier(.34,1.56,.64,1),
    border-color .18s,
    background .18s,
    box-shadow .22s;
}
.tc-bv-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(74,159,224,.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
.tc-bv-card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(74,159,224,.5);
  background: rgba(255,255,255,.1);
  box-shadow: 0 20px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(74,159,224,.2);
}
.tc-bv-card:hover::after { opacity: 1; }

.tc-bv-thumb {
  height: 160px;
  background: rgba(255,255,255,.05) center/cover no-repeat;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tc-bv-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11,31,58,.7) 100%);
  opacity: 0;
  transition: opacity .2s;
}
.tc-bv-card:hover .tc-bv-thumb::before { opacity: 1; }

/* Zoom ảnh khi hover */
.tc-bv-thumb {
  background-size: cover;
  background-position: center;
  transition: background-size .35s ease;
}
.tc-bv-card:hover .tc-bv-thumb {
  background-size: 108%;
}

.tc-bv-thumb-icon { font-size: 32px; opacity: .4; }
.tc-bv-pin {
  position: absolute;
  top: 8px; right: 8px;
  font-size: 14px;
  background: rgba(11,31,58,.75);
  border-radius: 6px;
  padding: 3px 7px;
}
.tc-bv-tag {
  position: absolute;
  bottom: 8px; left: 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #fff;
  background: var(--tc-bv-color, var(--navy-600));
  padding: 3px 9px;
  border-radius: 999px;
}

.tc-bv-body {
  padding: 14px 16px 10px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tc-bv-body h3 {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .15s;
}
.tc-bv-card:hover .tc-bv-body h3 { color: var(--sky-400); }
.tc-bv-body p {
  font-size: 12.5px;
  color: rgba(255,255,255,.55);
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tc-bv-meta {
  display: flex;
  gap: 12px;
  font-size: 11.5px;
  color: rgba(255,255,255,.4);
  margin-top: auto;
  padding-top: 8px;
}
.tc-bv-arrow {
  padding: 10px 16px;
  font-size: 14px;
  color: rgba(255,255,255,.25);
  text-align: right;
  border-top: 1px solid rgba(255,255,255,.06);
  transition: color .15s, padding-right .15s;
}
.tc-bv-card:hover .tc-bv-arrow {
  color: var(--sky-400);
  padding-right: 12px;
}

@media (max-width: 900px) {
  .tc-bv-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .tc-bv-grid { grid-template-columns: 1fr; }
  .tc-bai-viet-wrap { padding: 40px 16px 48px; }
}

/* ============================================================
   TRANG BÀI VIẾT (bai_viet/index.html + bai_viet/tim_kiem.html)
   Dùng chung cho cả 2 trang để giao diện đồng nhất.
   ============================================================ */
.bv-filter-bar {
  max-width: 1180px; margin: 22px auto 22px; padding: 0 24px;
  display: flex; flex-wrap: wrap; gap: 8px;
}
.bv-filter-chip {
  display: inline-flex; align-items: center; padding: 7px 16px; border-radius: var(--radius-full);
  border: 1.5px solid var(--line-200); font-size: 13.5px; font-weight: 600; color: var(--text-muted);
  background: var(--paper-50);
  transition: border-color .15s ease, color .15s ease, background .15s ease, transform .15s cubic-bezier(.34,1.56,.64,1);
}
.bv-filter-chip:hover { border-color: var(--chip-color, var(--sage-500)); color: var(--chip-color, var(--sage-500)); transform: scale(1.04); }
.bv-filter-chip.is-active {
  background: var(--chip-color, var(--sage-500)); border-color: var(--chip-color, var(--sage-500)); color: #fff;
  transform: scale(1);
}

/* ---------- Khối nổi bật: bài lớn (overlay) + liên quan cùng DM + list khác DM ---------- */
.bv-noibat-wrap {
  display: grid; grid-template-columns: 1.7fr 1fr; gap: 28px;
  margin-bottom: 36px; padding-bottom: 32px; border-bottom: 1px solid var(--line-200);
  align-items: start;
}
.bv-noibat-left { display: flex; flex-direction: column; gap: 18px; }

.bv-noibat-anh {
  position: relative; display: block; width: 100%; aspect-ratio: 16/9; border-radius: var(--radius-md);
  background: var(--sage-100) center/cover no-repeat; overflow: hidden; border: 1px solid var(--line-200);
  transition: box-shadow .2s ease;
}
.bv-noibat-anh:hover { box-shadow: var(--shadow-md); }
.bv-noibat-anh .bv-card-thumb-fallback {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 52px; opacity: .5;
}
.bv-noibat-overlay {
  position: absolute; left: 0; right: 0; bottom: 0; top: 45%;
  background: linear-gradient(180deg, rgba(11,31,58,0) 0%, rgba(11,31,58,.55) 32%, rgba(11,31,58,.92) 100%);
  display: flex; flex-direction: column; justify-content: flex-end; gap: 8px;
  padding: 22px 24px;
}
.bv-card-tag-anh { align-self: flex-start; }
.bv-noibat-overlay h2 {
  margin: 0; font-family: var(--font-display); font-size: 24px; line-height: 1.28; font-weight: 800; color: #fff;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .15s ease;
}
.bv-noibat-anh:hover .bv-noibat-overlay h2 { color: var(--sky-400); }
.bv-noibat-overlay p {
  margin: 0; font-size: 14px; color: rgba(255,255,255,.85); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.bv-noibat-meta { display: flex; gap: 16px; font-size: 12.5px; color: rgba(255,255,255,.75); }

.bv-lienquan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.bv-lienquan-card { display: flex; flex-direction: column; gap: 8px; color: inherit; transition: transform .18s ease; }
.bv-lienquan-card:hover { transform: translateY(-3px); }
.bv-lienquan-anh {
  width: 100%; aspect-ratio: 16/10; border-radius: var(--radius-sm); background: var(--sage-100) center/cover no-repeat;
  border: 1px solid var(--line-200); position: relative; overflow: hidden;
}
.bv-lienquan-anh .bv-card-thumb-fallback { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 26px; opacity: .55; }
.bv-lienquan-title {
  font-size: 13.5px; font-weight: 700; color: var(--ink-900); line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .15s ease;
}
.bv-lienquan-card:hover .bv-lienquan-title { color: var(--sage-500); }

.bv-noibat-phu {
  display: flex; flex-direction: column;
  max-height: 480px;      /* khớp đúng chiều cao .bv-slideshow bên trái */
  overflow-y: auto;
  padding-right: 4px;     /* chừa chỗ cho thanh cuộn, tránh đè lên chữ */
}
.bv-noibat-phu::-webkit-scrollbar { width: 5px; }
.bv-noibat-phu::-webkit-scrollbar-thumb { background: var(--line-200); border-radius: 3px; }
.bv-noibat-phu::-webkit-scrollbar-thumb:hover { background: var(--sage-300, #b9c9bd); }
.bv-phu-heading {
  font-family: var(--font-display); font-size: 14px; font-weight: 800; color: var(--sage-500);
  text-transform: uppercase; letter-spacing: .03em; margin-bottom: 6px; padding-bottom: 10px;
  border-bottom: 2px solid var(--sage-500);
}
.bv-phu-item {
  position: relative;
  display: flex; flex-direction: column; gap: 5px; padding: 14px 0 14px 0; color: inherit;
  border-bottom: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  transition: padding-left .15s ease, background .15s ease;
}
.bv-noibat-phu .bv-phu-item:last-child { border-bottom: none; }
.bv-phu-item::before {
  content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 0;
  background: var(--navy-500); border-radius: 2px; transition: width .15s ease;
}
.bv-phu-item:hover { padding-left: 10px; background: var(--sage-100); }
.bv-phu-item:hover::before { width: 3px; }
.bv-phu-eyebrow {
  font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em;
  color: var(--chip-color, var(--sage-500));
}
.bv-phu-title {
  font-size: 14.5px; font-weight: 700; color: var(--ink-900); line-height: 1.4;
  transition: color .15s ease;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.bv-phu-item:hover .bv-phu-title { color: var(--sage-500); }

@media (max-width: 860px) {
  .bv-noibat-wrap { grid-template-columns: 1fr; gap: 20px; }
  .bv-noibat-overlay h2 { font-size: 20px; }
  .bv-lienquan-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .bv-lienquan-title { font-size: 12.5px; -webkit-line-clamp: 2; }
  .bv-noibat-phu { max-height: none; overflow-y: visible; padding-right: 0; }
}
@media (max-width: 560px) {
  .bv-lienquan-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Lưới bài viết (index.html + tim_kiem.html) ---------- */
.bv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.bv-card {
  display: flex; flex-direction: column; background: var(--paper-50); border: 1px solid var(--line-200);
  border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .22s cubic-bezier(.34,1.56,.64,1), box-shadow .22s ease, border-color .18s ease;
  will-change: transform;
}
.bv-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(11,31,58,.14), 0 4px 12px rgba(11,31,58,.08);
  border-color: var(--navy-500);
}
.bv-card-thumb {
  position: relative; height: 172px; background: var(--sage-100) center/cover no-repeat;
  display: flex; align-items: center; justify-content: center;
}
.bv-card-thumb-fallback { font-size: 34px; opacity: .6; }
.bv-card-pin {
  position: absolute; top: 10px; left: 10px; background: rgba(11,31,58,.78); color: #fff;
  font-size: 11.5px; font-weight: 700; padding: 3px 9px; border-radius: var(--radius-full);
}
.bv-card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.bv-card-tag {
  align-self: flex-start; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em;
  color: var(--chip-color, var(--sage-500)); background: color-mix(in srgb, var(--chip-color, var(--sage-500)) 12%, white);
  padding: 3px 10px; border-radius: var(--radius-full);
}
.bv-card-tag-anh {
  color: #fff; background: color-mix(in srgb, var(--chip-color, var(--sage-500)) 78%, transparent);
}
.bv-card-body h3 {
  margin: 0; font-family: var(--font-display); font-size: 16.5px; font-weight: 800; color: var(--ink-900); line-height: 1.35;
  transition: color .15s ease;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.bv-card:hover .bv-card-body h3 { color: var(--navy-600); }
.bv-card-body p { margin: 0; font-size: 13.5px; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.bv-card-meta { margin-top: auto; padding-top: 8px; display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); }

/* ============================================================
   SLIDESHOW BÀI VIẾT NỔI BẬT
   ============================================================ */
.bv-slideshow {
  position: relative;
  width: 100%;
  height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow-lg);
  background: var(--ink-900);
  /* Ngăn layout shift */
  isolation: isolate;
}

/* Tập hợp slides */
.bv-slides { position: relative; width: 100%; height: 100%; }

/* Từng slide */
.bv-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .65s ease, visibility .65s ease;
  will-change: opacity;
}
.bv-slide.is-active {
  opacity: 1;
  visibility: visible;
}

/* Link bao toàn bộ slide */
.bv-slide-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  text-decoration: none;
}

/* Ảnh nền */
.bv-slide-bg {
  position: absolute;
  inset: 0;
  background: var(--ink-900) center/cover no-repeat;
  transform: scale(1);
  transition: transform 6s ease;
}
.bv-slide.is-active .bv-slide-bg {
  transform: scale(1.04);
}
.bv-slide-bg-fallback {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 64px; opacity: .15;
}

/* Gradient overlay — tối dần từ dưới lên */
.bv-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(7, 15, 30, .92) 0%,
    rgba(7, 15, 30, .55) 45%,
    rgba(7, 15, 30, .15) 75%,
    transparent 100%
  );
}

/* Nội dung text */
.bv-slide-content {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 32px 40px 52px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transform: translateY(8px);
  transition: transform .65s ease;
}
.bv-slide.is-active .bv-slide-content {
  transform: translateY(0);
}

.bv-slide-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  width: fit-content;
}
.bv-slide-pin {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,.7);
  width: fit-content;
}
.bv-slide-title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 800;
  color: #fff;
  margin: 0;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 680px;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.bv-slide-desc {
  font-size: 14.5px;
  color: rgba(255,255,255,.72);
  line-height: 1.55;
  margin: 0;
  max-width: 560px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.bv-slide-meta {
  display: flex;
  gap: 14px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

/* Hiệu ứng hover trên chữ — thay cho nút "Đọc tiếp" đã bỏ */
.bv-slide-title { transition: color .2s ease; }
.bv-slide-tag { transition: filter .2s ease, transform .2s ease; }
.bv-slide-link:hover .bv-slide-title { color: var(--sky-400); }
.bv-slide-link:hover .bv-slide-tag { filter: brightness(1.12); transform: translateY(-1px); }
.bv-slide-link:hover .bv-slide-desc { color: rgba(255,255,255,.9); }

/* Mũi tên prev/next — canh giữa theo chiều dọc */
.bv-slide-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255,255,255,.12);
  border: 1.5px solid rgba(255,255,255,.2);
  color: #fff;
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 22px; line-height: 1;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, border-color .15s, transform .15s;
  backdrop-filter: blur(8px);
  user-select: none;
}
.bv-slide-arrow:hover {
  background: rgba(255,255,255,.25);
  border-color: rgba(255,255,255,.5);
}
.bv-slide-prev { left: 16px; }
.bv-slide-next { right: 16px; }

/* Dots */
.bv-slide-dots {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}
.bv-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,.35);
  cursor: pointer;
  padding: 0;
  transition: all .25s cubic-bezier(.34,1.56,.64,1);
}
.bv-dot.is-active {
  background: #fff;
  width: 24px;
  border-radius: 4px;
}
.bv-dot:hover { background: rgba(255,255,255,.7); }

/* Progress bar */
.bv-slide-progress {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255,255,255,.12);
  z-index: 10;
}
.bv-slide-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--sky-400);
  border-radius: 2px;
}

/* Responsive */
@media (max-width: 768px) {
  .bv-slideshow { height: 360px; border-radius: var(--radius-md); }
  .bv-slide-content { padding: 20px 20px 44px; }
  .bv-slide-desc { display: none; }
  .bv-slide-arrow { width: 36px; height: 36px; font-size: 18px; }
  .bv-slide-prev { left: 10px; }
  .bv-slide-next { right: 10px; }
}
@media (max-width: 480px) {
  .bv-slideshow { height: 280px; }
  .bv-slide-content { padding: 16px 16px 40px; gap: 6px; }
  .bv-slide-title { font-size: 16px; }
  .bv-slide-meta { display: none; }
}

/* ---------- Xem ảnh phóng to (lightbox) ---------- */
.lightbox-trigger { cursor: zoom-in; }

.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(7, 15, 30, .9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.lightbox-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.lightbox-anh {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  transform: scale(.96);
  transition: transform .2s ease;
}
.lightbox-overlay.is-open .lightbox-anh {
  transform: scale(1);
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  transition: background .15s, border-color .15s;
}
.lightbox-close:hover {
  background: rgba(255,255,255,.22);
  border-color: rgba(255,255,255,.5);
}
@media (max-width: 480px) {
  .lightbox-overlay { padding: 16px; }
  .lightbox-close { top: 12px; right: 12px; width: 38px; height: 38px; font-size: 22px; }
}

/* Nút hiện/ẩn mật khẩu (js/hien_mat_khau.js) */
.form-row input[type="email"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  background: #fff;
  box-sizing: border-box;
}
.pw-wrap { position: relative; display: block; }
.pw-wrap input { width: 100%; padding-right: 44px !important; box-sizing: border-box; }
.pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 0; border-radius: 6px; cursor: pointer;
  color: var(--text-muted, #667);
}
.pw-toggle:hover { color: var(--ink-900, #1a2233); background: rgba(0,0,0,0.05); }

/* Gợi ý tìm kiếm dạng dropdown (js/goi_y_tim_kiem.js) */
.goi-y-wrap { position: relative; flex: 1; min-width: 0; display: flex; align-items: center; }
.hero-search .goi-y-wrap input,
.search-form .goi-y-wrap input { width: 100%; }
.goi-y-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--line-200);
  border-radius: 12px;
  box-shadow: 0 20px 40px -14px rgba(16, 25, 43, 0.3);
  max-height: 340px;
  overflow-y: auto;
  z-index: 60;
  text-align: left;
  /* Thanh cuộn mảnh, bo tròn — thay cho thanh cuộn to/thô mặc định của trình duyệt */
  scrollbar-width: thin;
  scrollbar-color: var(--line-200) transparent;
}
.goi-y-dropdown::-webkit-scrollbar { width: 6px; }
.goi-y-dropdown::-webkit-scrollbar-track { background: transparent; }
.goi-y-dropdown::-webkit-scrollbar-thumb { background: var(--line-200); border-radius: 999px; }
.goi-y-dropdown::-webkit-scrollbar-thumb:hover { background: var(--sage-300, #b9c9bd); }
.goi-y-item { padding: 10px 14px; cursor: pointer; }
.goi-y-item:hover, .goi-y-item.active { background: var(--paper-50); }
.goi-y-item + .goi-y-item { border-top: 1px solid var(--line-200); }
.goi-y-ten-dong { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.goi-y-ten { font-size: 14px; font-weight: 600; color: var(--ink-900); }
.goi-y-ten strong { color: var(--sage-500); }
.goi-y-phu { font-size: 12.5px; color: var(--text-muted); margin-top: 2px; }
.goi-y-badge {
  font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px;
  background: #eef2ff; color: #4338ca; white-space: nowrap; flex-shrink: 0;
}

/* ===== Nút đăng xuất hoạt hình (admin) ===== */
.user-dropdown a.lo-btn{position:relative;overflow:visible;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:6px;background:#1c2333;color:#f4f6fb;border:none;border-radius:10px;padding:10px 14px;font-size:13.5px;font-weight:600;cursor:pointer;text-decoration:none}
.user-dropdown a.lo-btn:hover{background:#263049}
.lo-btn.shake{animation:lo-shake 380ms ease}
@keyframes lo-shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-3px)}40%{transform:translateX(3px)}60%{transform:translateX(-2px)}80%{transform:translateX(2px)}}

.lo-icon{position:relative;width:39px;height:30px;flex-shrink:0;perspective:90px}
.lo-frame{position:absolute;left:16px;top:0;width:18px;height:26px;border:1.5px solid #6b4a29;box-sizing:border-box;border-radius:1px}
.lo-person{position:absolute;left:1px;top:2px;width:16px;height:22px;z-index:2;transition:transform 900ms ease}
.lo-bob{display:block;width:100%;height:100%}
.lo-person svg{display:block;overflow:visible}

.lo-person{--T:900ms;--cycles:3}
/* ---- Nhân vật gốc: sinh vật tròn có chồi non ---- */
.lo-person .lk,.lo-person .cb,.lo-person .fc,.lo-person .am1,.lo-person .am2,.lo-person .sp,.lo-person .ft1,.lo-person .ft2{transform-box:view-box}
.lo-person .lk{transform-origin:8px 20.4px}
.lo-person .cb{transform-origin:8px 20.2px}
.lo-person .am1{transform-origin:2px 13.4px}
.lo-person .am2{transform-origin:14px 13.4px}
.lo-person .sp{transform-origin:8px 8px}
.lo-person .body{fill:#cfeedd;stroke:#2f6b57;stroke-width:1;stroke-linejoin:round}
.lo-person .arm{fill:#cfeedd;stroke:#2f6b57;stroke-width:.9}
.lo-person .foot{fill:#a8dcc0;stroke:#2f6b57;stroke-width:.9}
.lo-person .leaf-s{fill:#7fcf9a;stroke:#2f6b57;stroke-width:.7;stroke-linejoin:round}
.lo-person .stem{stroke:#2f6b57;stroke-width:.9;stroke-linecap:round;fill:none}
.lo-person .eye{fill:#1d3a31}
.lo-person .cheek{fill:#ffb3c1}
.lo-person .mouth{stroke:#1d3a31;stroke-width:.7;stroke-linecap:round;fill:none}

.lo-person.walking .cb,.lo-person.walking .ft1,.lo-person.walking .ft2,.lo-person.walking .am1,.lo-person.walking .am2,.lo-person.walking .sp{
  animation-duration:var(--T);animation-iteration-count:var(--cycles);animation-timing-function:ease-in-out;animation-fill-mode:forwards}
.lo-person.walking .lo-bob{animation:lo-bob var(--T) ease-in-out var(--cycles) forwards}
.lo-person.walking .cb{animation-name:lo-waddle}
.lo-person.walking .ft1{animation-name:lo-ft1}
.lo-person.walking .ft2{animation-name:lo-ft2}
.lo-person.walking .am1{animation-name:lo-am1}
.lo-person.walking .am2{animation-name:lo-am2}
.lo-person.walking .sp{animation-name:lo-sprout}
/* khi bước, mặt hướng về phía cửa (đăng xuất). Đăng nhập đã hướng sẵn nhờ chuỗi ngó */
.lo-person.walking .fc{transform:translateX(1.4px);transition:transform 300ms ease}

/* thân lắc nghiêng theo bước + nén nhẹ khi chạm đất */
@keyframes lo-waddle{0%{transform:rotate(0) scale(1,1)}25%{transform:rotate(4deg) scale(1.03,.96)}50%{transform:rotate(0) scale(1,1)}75%{transform:rotate(-4deg) scale(1.03,.96)}100%{transform:rotate(0) scale(1,1)}}
/* chân: chống phía sau -> nhấc lên vung tới trước -> đặt xuống */
@keyframes lo-ft1{0%{transform:translate(1px,0)}25%{transform:translate(0,0)}50%{transform:translate(-1px,0)}75%{transform:translate(0,-1.6px)}100%{transform:translate(1px,0)}}
@keyframes lo-ft2{0%{transform:translate(-1px,0)}25%{transform:translate(0,-1.6px)}50%{transform:translate(1px,0)}75%{transform:translate(0,0)}100%{transform:translate(-1px,0)}}
/* tay đánh nhẹ, chồi non đung đưa trễ nhịp so với thân */
@keyframes lo-am1{0%{transform:rotate(0)}25%{transform:rotate(14deg)}50%{transform:rotate(0)}75%{transform:rotate(-14deg)}100%{transform:rotate(0)}}
@keyframes lo-am2{0%{transform:rotate(0)}25%{transform:rotate(-14deg)}50%{transform:rotate(0)}75%{transform:rotate(14deg)}100%{transform:rotate(0)}}
@keyframes lo-sprout{0%{transform:rotate(0)}30%{transform:rotate(-8deg)}50%{transform:rotate(0)}80%{transform:rotate(8deg)}100%{transform:rotate(0)}}
@keyframes lo-bob{0%,50%,100%{transform:translateY(0)}25%,75%{transform:translateY(.7px)}}

.lo-leaf{position:absolute;left:16px;top:0;width:18px;height:26px;background:#a9713f;border-radius:1px;transform-origin:left center;transform:rotateY(-78deg);transition:transform 550ms ease;z-index:3}
.lo-leaf.closed{transform:rotateY(0deg)}

/* ===== Nút đăng nhập hoạt hình: ngó trái -> ngó phải -> mở cửa -> bước vào ===== */
.login-card button.li-btn{position:relative;overflow:visible;display:flex;align-items:center;justify-content:center;gap:14px;width:100%;background:#1c2333;color:#f4f6fb;border:none;border-radius:10px;padding:9px 16px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer}
.login-card button.li-btn:hover{background:#263049}
.login-card button.li-btn:disabled{cursor:default;opacity:1}

/* ngó quanh: thân nghiêng nhẹ + mặt (mắt, má, miệng) trượt trên thân tròn */
.lo-person{--LOOK:1600ms}
.lo-person.looking .lk{animation:lo-look var(--LOOK) ease-in-out forwards}
.lo-person.looking .fc{animation:lo-gaze var(--LOOK) ease-in-out forwards}
/* 0-15%: quay trái | 15-45%: giữ | 45-75%: quay phải | 75-100%: giữ (nhìn về phía cửa) */
@keyframes lo-look{0%{transform:rotate(0)}15%,45%{transform:rotate(-6deg)}75%,100%{transform:rotate(6deg)}}
@keyframes lo-gaze{0%{transform:translateX(0)}15%,45%{transform:translateX(-1.5px)}75%,100%{transform:translateX(1.5px)}}

/* Đăng nhập: lật ngang cả cụm cửa + người -> người đứng bên phải, bước từ phải sang trái vào cửa
   (ngược hướng với đăng xuất). Toàn bộ chuyển động tự lật theo nên vẫn nhất quán. */
.li-btn .lo-icon{transform:scaleX(-1)}

/* ===== Trang nhật ký truy cập (admin) ===== */
.nk-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.nk-card{background:var(--paper-0,#fff);border:1px solid var(--line-200);border-radius:var(--radius-sm);padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.nk-card .nk-num{font-size:26px;font-weight:800;color:var(--navy-600)}
.nk-card .nk-lbl{font-size:12.5px;color:var(--text-muted)}
.nk-card.nk-warn .nk-num{color:#c0392b}
.nk-tops{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-bottom:18px}
.nk-top{background:var(--paper-0,#fff);border:1px solid var(--line-200);border-radius:var(--radius-sm);padding:12px 14px}
.nk-top h3{font-size:13px;margin:0 0 8px;color:var(--navy-600)}
.nk-top-row{display:flex;justify-content:space-between;gap:10px;padding:5px 0;font-size:13px;color:inherit;text-decoration:none;border-top:1px solid var(--line-200)}
.nk-top-row:first-of-type{border-top:none}
.nk-top-row:hover span{text-decoration:underline}
.nk-empty{font-size:12.5px;color:var(--text-muted);margin:0}
.nk-filter{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.nk-filter select,.nk-filter input[type=text],.nk-filter input[type=date]{padding:8px 11px;border:1px solid var(--line-200);border-radius:var(--radius-sm);font-size:13px;font-family:var(--font-body);background:var(--paper-50);outline:none}
.nk-filter input[type=text]{min-width:150px}
.nk-filter label{font-size:12.5px;color:var(--text-muted);display:flex;align-items:center;gap:5px}
.nk-note{font-size:12.5px;color:var(--text-muted);margin:-6px 0 12px}
.nk-table td{vertical-align:top;font-size:13px}
.nk-content strong{display:block;font-weight:600}
.nk-content small{display:block;color:var(--text-muted);font-size:12px}
.nk-link{color:var(--navy-600);text-decoration:none}
.nk-link:hover{text-decoration:underline}
.nk-b-tim_kiem{background:#e3f2fd;color:#1565c0}
.nk-b-sua_du_lieu{background:#fff3e0;color:#e65100}
.nk-b-dang_nhap{background:#e8f5e9;color:#2e7d32}
.nk-b-dang_nhap_that_bai{background:#ffebee;color:#c62828}
.nk-b-dang_xuat,.nk-b-tai_khoan{background:#eceff1;color:#455a64}
.nk-purge{display:flex;gap:8px;align-items:center;margin-top:22px;font-size:13px;color:var(--text-muted)}
.nk-purge select{padding:7px 10px;border:1px solid var(--line-200);border-radius:var(--radius-sm)}
.nk-dev strong{display:block;font-weight:600;white-space:nowrap}
.nk-dev small{display:block;color:var(--text-muted);font-size:12px}

/* ===== Banner xin phép cookie (trang công khai) ===== */
.pp-cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:9999;max-width:760px;margin:0 auto;display:flex;align-items:center;gap:16px;
  background:#0f2742;color:#f4f6fb;border-radius:12px;padding:14px 18px;box-shadow:0 8px 30px rgba(0,0,0,.28);font-size:13.5px;line-height:1.5}
.pp-cookie[hidden]{display:none}
.pp-cookie p{margin:0;flex:1}
.pp-cookie-btns{display:flex;gap:8px;flex-shrink:0}
.pp-cookie-btn{border:none;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit}
.pp-cookie-yes{background:#fff;color:#0f2742}
.pp-cookie-no{background:transparent;color:#f4f6fb;border:1px solid rgba(255,255,255,.35)}
.pp-cookie-btn:hover{opacity:.9}
@media (max-width:560px){.pp-cookie{flex-direction:column;align-items:stretch;gap:10px}.pp-cookie-btns{justify-content:flex-end}}
.pp-cookie-link{color:#fff;text-decoration:underline;white-space:nowrap}
.nk-b-truy_cap{background:#f1f3f5;color:#495057}
.nk-b-xem_thuoc{background:#e0f7f1;color:#00796b}
.nk-b-admin_truy_cap{background:#ede7f6;color:#5e35b1}
.nk-path{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11.5px;opacity:.8;word-break:break-all}