/* ═══════════════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Reskin Quốc khánh — remap palette dashboard sang tokens design-system:
     nền trắng-ấm, mực near-black, accent chính = đỏ cờ #DA251D. Màu chức năng
     (green/amber/purple ở bảng & biểu đồ) giữ lại để dữ liệu còn phân biệt được. */
  --bg-primary: #FBFAF7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #F4F1EA;
  --bg-input: #FBFAF7;
  --border-color: rgba(28,27,24,0.10);
  --border-hover: rgba(28,27,24,0.18);
  --text-primary: #1C1B18;
  --text-secondary: #56534C;
  --text-muted: #8A867C;
  --accent-cyan: #DA251D;
  --accent-cyan-dim: rgba(218,37,29,0.10);
  --accent-green: #0f9d6b;
  --accent-green-dim: rgba(15,157,107,0.12);
  --accent-red: #A81910;
  --accent-red-dim: rgba(168,25,16,0.10);
  --accent-amber: #C08A00;
  --accent-amber-dim: rgba(255,196,0,0.14);
  --accent-purple: #7c3aed;
  --accent-purple-dim: rgba(124,58,237,0.10);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-glow: 0 10px 40px rgba(218,37,29,0.08);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Ambient glow blobs */
body::before, body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}
body::before {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(237,27,53,0.08), transparent 70%);
  top: -150px; right: -100px;
}
body::after {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(167,139,250,0.06), transparent 70%);
  bottom: -100px; left: -80px;
}

/* ═══════════════════════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════════════════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.2); }

/* ═══════════════════════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
  0%   { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes growUp {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.animate-in {
  animation: fadeInUp 0.5s var(--transition) both;
}
.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.10s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.20s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }
.animate-in:nth-child(6) { animation-delay: 0.30s; }

/* ═══════════════════════════════════════════════════════════
   LOGIN PAGE
   ═══════════════════════════════════════════════════════════ */
#login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  position: relative;
  z-index: 1;
}

.login-container {
  width: 100%;
  max-width: 420px;
  animation: fadeInUp 0.6s ease both;
}

.login-logo {
  text-align: center;
  margin-bottom: 40px;
}

.login-logo .logo-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 16px;
  box-shadow: 0 8px 32px rgba(237,27,53,0.2);
}

.login-logo h1 {
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 6px;
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(40px) saturate(1.4);
  -webkit-backdrop-filter: blur(40px) saturate(1.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-glow), 0 18px 50px rgba(15,23,42,0.12);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #ed1b35, #ff6b35);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(237,27,53,0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(237,27,53,0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-ghost:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.login-error {
  display: none;
  padding: 12px 16px;
  background: var(--accent-red-dim);
  border: 1px solid rgba(248,113,113,0.2);
  border-radius: var(--radius-xs);
  color: var(--accent-red);
  font-size: 0.85rem;
  margin-bottom: 20px;
  animation: slideDown 0.3s ease;
}

.login-error.show { display: block; }

/* ═══════════════════════════════════════════════════════════
   DASHBOARD LAYOUT
   ═══════════════════════════════════════════════════════════ */
#dashboard-page {
  display: none;            /* toggled to flex on successful login */
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 240px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
  z-index: 200;
}

.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 4px 8px 18px;
}
.sidebar-logo {
  width: 34px; height: 34px; flex: none;
  border-radius: 9px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.sidebar-logo img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-title { font-size: 1.02rem; font-weight: 800; letter-spacing: -0.3px; }
.sidebar-title span { color: var(--accent-cyan); }

.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  width: 100%; text-align: left;
  padding: 11px 12px;
  background: transparent; border: none;
  border-left: 2px solid transparent;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-family: inherit; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
}
.nav-item:hover { background: rgba(0,0,0,0.04); color: var(--text-primary); }
.nav-item.active {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}
.nav-ico { font-size: 1.05rem; width: 22px; text-align: center; flex: none; }
.nav-label { flex: 1; }
.nav-badge {
  background: var(--accent-red); color: #fff;
  font-size: 0.68rem; font-weight: 700;
  padding: 2px 7px; border-radius: 10px; min-width: 18px; text-align: center;
}
.nav-badge:empty { display: none; }

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  display: flex; align-items: center; gap: 10px;
}
.sidebar-user { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1; }
.sidebar-username {
  font-size: 0.85rem; color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sidebar-actions { display: flex; gap: 6px; }

.icon-btn {
  width: 34px; height: 34px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-xs); color: var(--text-secondary);
  font-size: 0.95rem; cursor: pointer; transition: var(--transition);
}
.icon-btn:hover { background: var(--bg-card-hover); border-color: var(--border-hover); color: var(--text-primary); }
.icon-btn.danger { color: var(--accent-red); }
.icon-btn.danger:hover { background: rgba(248,113,113,0.15); border-color: rgba(248,113,113,0.3); }

.sidebar-backdrop { display: none; }

/* ── Content ──────────────────────────────────────────── */
.content {
  margin-left: 240px;
  min-height: 100vh;
  display: flex; flex-direction: column;
}

.content-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 28px; min-height: 64px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.content-title { flex: 1; min-width: 0; }
.content-title h2 { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.4px; }
.content-title p { color: var(--text-muted); font-size: 0.8rem; margin-top: 2px; }
.content-header-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.content-main { padding: 24px 28px; max-width: 1320px; width: 100%; }

.hamburger {
  display: none; flex: none;
  width: 38px; height: 38px; font-size: 1.1rem; cursor: pointer;
  background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-xs); color: var(--text-primary);
}

/* Range chip */
.range-chip {
  display: flex; align-items: center; gap: 2px;
  background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-xs); padding: 3px;
}
.range-chip.hidden { display: none; }
.range-opt {
  padding: 5px 11px; background: transparent; border: none;
  border-radius: var(--radius-xs); color: var(--text-secondary);
  font-family: inherit; font-size: 0.8rem; font-weight: 600; cursor: pointer;
  transition: var(--transition);
}
.range-opt:hover { color: var(--text-primary); }
.range-opt.active { background: var(--accent-cyan-dim); color: var(--accent-cyan); }
.range-sep { width: 1px; height: 18px; background: var(--border-color); margin: 0 4px; }
.range-date {
  background: transparent; border: none; color: var(--text-secondary);
  font-family: inherit; font-size: 0.78rem; cursor: pointer;
  color-scheme: light; padding: 4px;
}
.range-dash { color: var(--text-muted); font-size: 0.8rem; }

/* Views */
.view { display: none; animation: fadeIn 0.3s ease; }
.view.active { display: block; }

.overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.chart-legend { display: flex; align-items: center; gap: 14px; }
.chart-total { font-size: 0.82rem; color: var(--text-muted); font-weight: 500; }

.table-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding: 16px 28px; flex-wrap: wrap;
}

.panel-hint { font-size: 0.8rem; color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════════
   STAT CARDS
   ═══════════════════════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15,23,42,0.05);
  transition: var(--transition);
}

.stat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(15,23,42,0.10);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
}

.stat-card.cyan::before  { background: linear-gradient(90deg, var(--accent-cyan), transparent); }
.stat-card.green::before { background: linear-gradient(90deg, var(--accent-green), transparent); }
.stat-card.purple::before { background: linear-gradient(90deg, var(--accent-purple), transparent); }
.stat-card.amber::before { background: linear-gradient(90deg, var(--accent-amber), transparent); }
.stat-card.red::before   { background: linear-gradient(90deg, var(--accent-red), transparent); }

.stat-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}

.stat-card.cyan .stat-icon  { background: var(--accent-cyan-dim); }
.stat-card.green .stat-icon { background: var(--accent-green-dim); }
.stat-card.purple .stat-icon { background: var(--accent-purple-dim); }
.stat-card.amber .stat-icon { background: var(--accent-amber-dim); }
.stat-card.red .stat-icon   { background: var(--accent-red-dim); }

.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-card.cyan .stat-value  { color: var(--accent-cyan); }
.stat-card.green .stat-value { color: var(--accent-green); }
.stat-card.purple .stat-value { color: var(--accent-purple); }
.stat-card.amber .stat-value { color: var(--accent-amber); }
.stat-card.red .stat-value   { color: var(--accent-red); }

.stat-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stat-sub .up   { color: var(--accent-green); }
.stat-sub .down { color: var(--accent-red); }

/* ═══════════════════════════════════════════════════════════
   SECTION PANELS
   ═══════════════════════════════════════════════════════════ */
.panel {
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 28px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15,23,42,0.05);
}

.panel-header {
  padding: 22px 28px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-body {
  padding: 28px;
}

/* ═══════════════════════════════════════════════════════════
   BAR CHART
   ═══════════════════════════════════════════════════════════ */
.chart-wrapper {
  display: flex;
  gap: 28px;
}

.chart-area {
  flex: 1;
}

.chart-legend-side {
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px; height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* Khớp với biểu đồ combo: Phiên = đường xanh, Bài = cột gradient đỏ→cam. */
.legend-dot.sessions { background: var(--accent-green); }
.legend-dot.articles  { background: linear-gradient(160deg, #ed1b35, #ff6b35); }
.legend-dot.success   { background: var(--accent-green); }

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 200px;
  padding-top: 20px;
  position: relative;
}

.bar-chart::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent calc(25% - 1px),
      rgba(0,0,0,0.04) calc(25% - 1px),
      rgba(0,0,0,0.04) 25%
    );
  pointer-events: none;
}

.bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 160px;
  width: 100%;
  justify-content: center;
}

.bar {
  width: 18px;
  min-height: 4px;
  border-radius: 4px 4px 2px 2px;
  transform-origin: bottom;
  animation: growUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  position: relative;
  cursor: pointer;
  transition: filter 0.2s;
}

.bar:hover {
  filter: brightness(1.3);
}

.bar.sessions { background: linear-gradient(to top, var(--accent-cyan), rgba(237,27,53,0.6)); }
.bar.articles  { background: linear-gradient(to top, var(--accent-purple), rgba(167,139,250,0.6)); }

.bar-group:nth-child(1) .bar { animation-delay: 0.1s; }
.bar-group:nth-child(2) .bar { animation-delay: 0.15s; }
.bar-group:nth-child(3) .bar { animation-delay: 0.2s; }
.bar-group:nth-child(4) .bar { animation-delay: 0.25s; }
.bar-group:nth-child(5) .bar { animation-delay: 0.3s; }
.bar-group:nth-child(6) .bar { animation-delay: 0.35s; }
.bar-group:nth-child(7) .bar { animation-delay: 0.4s; }

.bar-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.bar-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.75rem;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(15,23,42,0.14);
  z-index: 10;
}

.bar:hover .bar-tooltip { display: block; }

/* ═══════════════════════════════════════════════════════════
   DATA TABLE
   ═══════════════════════════════════════════════════════════ */
.table-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0;
  padding: 0 28px 0 28px;
}

.table-search {
  padding: 10px 14px 10px 38px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  width: 260px;
  transition: var(--transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%235a5a6e' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.47 6.47 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 12px center;
}

.table-search:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s;
  white-space: nowrap;
  position: relative;
}

thead th:hover { color: var(--text-secondary); }

thead th.sorted { color: var(--accent-cyan); }

thead th .sort-arrow {
  display: inline-block;
  margin-left: 4px;
  font-size: 0.65rem;
  opacity: 0;
  transition: opacity 0.2s;
}

thead th.sorted .sort-arrow { opacity: 1; }

tbody tr {
  border-bottom: 1px solid rgba(0,0,0,0.03);
  cursor: pointer;
  transition: background 0.15s;
}

tbody tr:hover {
  background: rgba(0,0,0,0.03);
}

tbody tr:last-child { border-bottom: none; }

tbody td {
  padding: 16px 20px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.td-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent-cyan-dim), var(--accent-purple-dim));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.user-name {
  font-weight: 600;
  color: var(--text-primary);
}

/* Directory "Thông tin" cell — truncate + click/hover to expand. These mirror
   public/style.css, which the admin page does NOT load; without them the long
   full_info string (cells are white-space:nowrap) blows the column width out
   and the whole table overflows its panel. Covers both the users table
   (.info-cell-full wrapper) and the sessions table (bare .info-cell). */
.info-cell {
  max-width: 240px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.info-cell:hover { color: var(--text-primary); }
.info-cell.expanded {
  white-space: normal;
  overflow: visible;
  word-break: break-word;
}
.info-cell.muted { color: var(--text-muted); cursor: default; }

.info-cell-full { max-width: 240px; }
.info-cell-full .info-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.success {
  background: var(--accent-green-dim);
  color: var(--accent-green);
}
.badge.running {
  background: var(--accent-cyan-dim);
  color: var(--accent-cyan);
}
.badge.failed {
  background: var(--accent-red-dim);
  color: var(--accent-red);
}
.badge.partial {
  background: var(--accent-amber-dim);
  color: var(--accent-amber);
}

.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.badge.running .badge-dot {
  animation: pulse-ring 1.5s ease-out infinite;
}

/* Read method tags */
.method-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.method-tag.http    { background: rgba(237,27,53,0.12); color: var(--accent-cyan); }
.method-tag.survey  { background: rgba(167,139,250,0.12); color: var(--accent-purple); }

/* ═══════════════════════════════════════════════════════════
   PAGINATION
   ═══════════════════════════════════════════════════════════ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-top: 1px solid var(--border-color);
}

.pagination-info {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pagination-buttons {
  display: flex;
  gap: 6px;
}

.page-btn {
  padding: 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.page-btn:hover:not(:disabled) {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.page-btn.active {
  background: var(--accent-cyan-dim);
  border-color: rgba(237,27,53,0.3);
  color: var(--accent-cyan);
}

/* Pager controls: rows-per-page select + nav buttons + jump-to-page */
.pager-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
}
.pager-size, .pager-jump {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.pager-size-sel {
  padding: 6px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}
.pager-jump-input {
  width: 60px;
  padding: 7px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  text-align: center;
}
.pager-size-sel:focus, .pager-jump-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-dim);
}

/* ═══════════════════════════════════════════════════════════
   SESSION DETAIL MODAL
   ═══════════════════════════════════════════════════════════ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 860px;
  max-height: 85vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: fadeInUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 24px 70px rgba(15,23,42,0.22);
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-close {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--accent-red-dim);
  border-color: rgba(248,113,113,0.2);
  color: var(--accent-red);
}

.modal-body {
  padding: 28px;
  overflow-y: auto;
  flex: 1;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.meta-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.meta-item .meta-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.meta-item .meta-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.articles-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-row {
  display: grid;
  grid-template-columns: 36px 1fr 80px 100px;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.article-row:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.article-num {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.article-title {
  font-size: 0.88rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-title a {
  color: inherit;
  text-decoration: none;
}
.article-title a:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}

/* ═══════════════════════════════════════════════════════════
   LOADING / EMPTY STATES
   ═══════════════════════════════════════════════════════════ */
.loading-spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 40px;
  margin-bottom: 14px;
  opacity: 0.4;
}

.skeleton {
  background: linear-gradient(90deg, rgba(0,0,0,0.04) 25%, rgba(0,0,0,0.08) 50%, rgba(0,0,0,0.04) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 6px;
}

/* ═══════════════════════════════════════════════════════════
   TODAY HIGHLIGHT SECTION
   ═══════════════════════════════════════════════════════════ */
.today-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 28px;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 980px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: 0 0 40px rgba(15,23,42,0.18);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop.show {
    display: block;
    position: fixed; inset: 0; z-index: 150;
    background: rgba(0,0,0,0.5);
  }
  .content { margin-left: 0; }
  .hamburger { display: inline-flex; align-items: center; justify-content: center; }
  .overview-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .content-header { padding: 10px 16px; }
  .content-main { padding: 18px 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 18px; }
  .stat-value { font-size: 1.5rem; }
  .panel-header { padding: 16px 18px; }
  .panel-body { padding: 18px; }
  .table-toolbar { padding: 14px 16px; }
  .table-search { width: 100%; }
  thead th, tbody td { padding: 12px 14px; }
  .pagination { padding: 14px 18px; flex-direction: column; gap: 12px; }
  .modal { max-height: 90vh; }
  .modal-body { padding: 18px; }
  .detail-meta { grid-template-columns: repeat(2, 1fr); }
  .article-row { grid-template-columns: 30px 1fr 60px; }
  .article-row > :nth-child(4) { display: none; }
  .users-controls { flex-direction: column; align-items: stretch; }
  .users-controls .table-search { width: 100%; }
  .status-filters { flex-wrap: wrap; }
  .user-actions { flex-direction: column; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .content-title h2 { font-size: 1.1rem; }
}

/* ═══════════════════════════════════════════════════════════
   EXPORT BUTTONS
   ═══════════════════════════════════════════════════════════ */
.btn-export {
  padding: 8px 14px;
  font-size: 0.82rem;
  background: rgba(237,27,53,0.08);
  color: var(--accent-cyan);
  border: 1px solid rgba(237,27,53,0.15);
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.btn-export:hover {
  background: rgba(237,27,53,0.15);
  border-color: rgba(237,27,53,0.3);
}

/* ═══════════════════════════════════════════════════════════
   USERS MANAGEMENT
   ═══════════════════════════════════════════════════════════ */
.users-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 28px;
  flex-wrap: wrap;
}

/* Bulk action bar (hidden until rows are selected; JS sets display:flex) */
.bulk-bar {
  display: none;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 28px 10px;
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.bulk-arrow { color: var(--text-muted); }
.bulk-select {
  padding: 5px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
}

.status-filters {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 7px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent-cyan-dim);
  border-color: rgba(237,27,53,0.3);
  color: var(--accent-cyan);
}

.filter-btn .filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: rgba(0,0,0,0.1);
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 700;
  margin-left: 4px;
}

.filter-btn.active .filter-count {
  background: rgba(237,27,53,0.2);
}

/* User status badges */
.badge.pending {
  background: var(--accent-amber-dim);
  color: var(--accent-amber);
}
.badge.approved {
  background: var(--accent-green-dim);
  color: var(--accent-green);
}
.badge.rejected {
  background: var(--accent-red-dim);
  color: var(--accent-red);
}

/* Password field */
.pw-field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.pw-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-muted);
  padding: 2px;
  transition: color 0.2s;
  line-height: 1;
}

.pw-toggle:hover {
  color: var(--text-primary);
}

/* Action buttons */
.user-actions {
  display: flex;
  gap: 6px;
}

.action-btn {
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.action-btn.approve {
  background: var(--accent-green-dim);
  color: var(--accent-green);
  border-color: rgba(52,211,153,0.15);
}
.action-btn.approve:hover {
  background: rgba(52,211,153,0.25);
  border-color: rgba(52,211,153,0.3);
}

.action-btn.reject {
  background: var(--accent-amber-dim);
  color: var(--accent-amber);
  border-color: rgba(251,191,36,0.15);
}
.action-btn.reject:hover {
  background: rgba(251,191,36,0.25);
  border-color: rgba(251,191,36,0.3);
}

.action-btn.delete {
  background: var(--accent-red-dim);
  color: var(--accent-red);
  border-color: rgba(248,113,113,0.15);
}
.action-btn.delete:hover {
  background: rgba(248,113,113,0.25);
  border-color: rgba(248,113,113,0.3);
}

.action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* User detail modal */
.user-detail-section {
  margin-bottom: 24px;
}

.user-detail-section h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ip-tag {
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Referral edit rows in the user-detail modal (đợt 26) */
.ref-edit-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.ref-edit-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.ref-edit-row input {
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-size: 0.88rem;
  min-width: 180px;
}
.ref-edit-row input[type="number"] { min-width: 0; }

/* Outstanding-unread cell in the users table (đợt 26) */
.unread-cell {
  display: flex;
  align-items: center;
  gap: 6px;
}
.unread-val {
  font-weight: 700;
  color: var(--accent-amber);
}
.unread-check {
  padding: 2px 8px;
  font-size: 0.78rem;
}

/* Combined activity cell in the users table (đợt 27) */
.activity-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: var(--text-secondary);
}
.activity-cell .act-sep { color: var(--text-muted); }
/* Số bài đã đọc / tối đa (đợt 37): tím bình thường, vàng ≥80%, đỏ khi đầy */
.quota-val { font-weight: 700; white-space: nowrap; color: var(--accent-purple); }
.quota-val.quota-low { color: var(--accent-amber); }
.quota-val.quota-full { color: var(--accent-red, #e5484d); }

/* Ký hiệu phiên BOT tự động vs đọc thường (đợt 37, Chi tiết người dùng) */
.sess-kind {
  display: inline-block; font-size: 0.7rem; font-weight: 700; white-space: nowrap;
  padding: 1px 6px; border-radius: var(--radius-sm); margin-right: 6px;
}
.sess-kind.bot { color: var(--accent-purple); background: rgba(124, 58, 237, 0.12); }
.sess-kind.manual { color: var(--text-muted); background: var(--bg-hover, rgba(127,127,127,0.1)); }

/* Tăng trưởng hub — tab bar (đợt 27) */
.growth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.growth-tab {
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.growth-tab:hover { border-color: var(--border-hover); color: var(--text-primary); }
.growth-tab.active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: #fff;
}
.growth-panel { display: none; }
.growth-panel.active { display: block; }

/* Collapsible sections in the user-detail modal (đợt 27) */
.collapse-section {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
}
.collapse-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-family: inherit;
}
.collapse-head:hover { background: var(--bg-card-hover); }
.collapse-title { font-size: 0.95rem; font-weight: 700; white-space: nowrap; }
.collapse-hint {
  flex: 1;
  min-width: 0;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.collapse-caret {
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.collapse-section.open .collapse-caret { transform: rotate(180deg); }
.collapse-body { display: none; padding: 14px 16px; border-top: 1px solid var(--border-color); }
.collapse-section.open .collapse-body { display: block; }

/* User-detail modal header strip (đợt 27) */
.detail-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.user-avatar.lg { width: 52px; height: 52px; font-size: 1.1rem; flex-shrink: 0; }
.detail-head-main { min-width: 0; }
.detail-head-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}
.detail-head-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.chip {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.chip-ok { background: var(--accent-green-dim); color: var(--accent-green); border-color: transparent; }
.chip-danger { background: var(--accent-red-dim); color: var(--accent-red); border-color: transparent; }
.chip-info { background: var(--accent-cyan-dim); color: var(--accent-cyan); border-color: transparent; }

.user-sessions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.user-session-row {
  display: grid;
  grid-template-columns: 1fr 120px 90px 80px;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.user-session-row:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

/* Toggle the password column in the user management table.
   Default markup carries `class="hide-pw"` on the table; clicking the
   eye button next to "Thao tác" removes it. */
#users-table.hide-pw .col-pw {
  display: none;
}

.th-pw-toggle,
.pw-reveal {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border, rgba(0, 0, 0, 0.1));
  border-radius: 6px;
  padding: 2px 7px;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  color: var(--text-secondary, rgba(0, 0, 0, 0.7));
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.th-pw-toggle:hover,
.pw-reveal:hover {
  background: rgba(238, 0, 51, 0.12);
  border-color: rgba(238, 0, 51, 0.35);
  color: #ed1b35;
}

.th-pw-toggle.active,
.pw-reveal.active {
  background: rgba(238, 0, 51, 0.18);
  border-color: rgba(238, 0, 51, 0.45);
  color: #ed1b35;
}

/* ═══════════════════════════════════════════════════════════
   RECENT ACTIVITY (overview)
   ═══════════════════════════════════════════════════════════ */
.activity-list { display: flex; flex-direction: column; }
.activity-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.activity-row:last-child { border-bottom: none; }
.activity-row:hover { background: rgba(0,0,0,0.03); }
.activity-main { min-width: 0; flex: 1; }
.activity-name { color: var(--text-primary); font-weight: 600; }
.activity-sub { color: var(--text-muted); font-size: 0.76rem; }
.activity-meta { color: var(--text-muted); font-size: 0.78rem; white-space: nowrap; }

/* ═══════════════════════════════════════════════════════════
   AUTO-READ MONITOR
   ═══════════════════════════════════════════════════════════ */
.stats-grid-4 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-bottom: 18px; }

.auto-status {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 600;
}
.auto-status.approved { color: var(--accent-green); }
.auto-status.pending  { color: var(--accent-amber); }
.auto-result-ok  { color: var(--accent-green); font-size: 0.82rem; }
.auto-result-err { color: var(--accent-red);  font-size: 0.82rem; word-break: break-word; }
.auto-result-none { color: var(--text-muted); font-size: 0.82rem; }

/* ═══════════════════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════════════════ */
/* Góc TRÁI dưới, nâng cao khỏi khối admin cuối sidebar (đợt 32 — yêu cầu chủ dự án) */
.toast-container {
  position: fixed;
  bottom: 110px; left: 20px;
  z-index: 1200;
  display: flex; flex-direction: column; gap: 10px;
  max-width: 360px;
}
.toast {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  background: #ffffff;
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--text-muted);
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 34px rgba(15,23,42,0.16);
  color: var(--text-primary);
  font-size: 0.85rem; line-height: 1.4;
  animation: slideInToast 0.25s ease both;
}
.toast.leaving { animation: fadeOutToast 0.25s ease both; }
.toast.success { border-left-color: var(--accent-green); }
.toast.error   { border-left-color: var(--accent-red); }
.toast.info    { border-left-color: var(--accent-cyan); }
.toast-ico { flex: none; font-size: 1rem; line-height: 1.3; }
.toast-msg { flex: 1; min-width: 0; }

@keyframes slideInToast {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeOutToast {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-24px); }
}

@media (max-width: 480px) {
  .toast-container { left: 16px; right: 16px; bottom: 16px; max-width: none; }
}

/* ═══════════════════════════════════════════════════════════
   MONETIZE / LEVELS (đợt 15)
   ═══════════════════════════════════════════════════════════ */
.monetize-form { padding: 16px 28px; display: flex; flex-direction: column; gap: 12px; max-width: 660px; }
.mz-row { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-secondary); }
.mz-row > span { flex: 0 0 120px; }
.mz-row input[type="text"] {
  flex: 1; padding: 8px 10px; background: var(--bg-input);
  border: 1px solid var(--border-color); border-radius: var(--radius-xs);
  color: var(--text-primary); font-family: inherit; font-size: 0.85rem;
}
#levels-table input[type="text"], #levels-table input[type="number"] {
  width: 100%; padding: 5px 7px; background: var(--bg-input);
  border: 1px solid var(--border-color); border-radius: var(--radius-xs);
  color: var(--text-primary); font-family: inherit; font-size: 0.8rem;
}
#levels-table input[type="number"] { width: 62px; }
#levels-table td { vertical-align: middle; }
.lv-descr-cell { display: flex; align-items: center; gap: 4px; min-width: 240px; }
.lv-descr-cell .lv-descr { flex: 1; }
.lv-descr-cell .lv-gen { flex: 0 0 auto; padding: 4px 8px; }
.lvl-badge { color: var(--accent-amber); font-size: 0.78rem; margin-left: 4px; letter-spacing: 1px; }

/* ============================================
   DARK THEME (đợt 20) — chọn giao diện sáng/tối
   Mặc định = SÁNG (:root). Khối dưới áp dụng khi <html data-theme="dark">.
   Accent chính giữ màu thương hiệu ĐỎ ở cả 2 theme (--accent-cyan = đỏ).
   ============================================ */
html[data-theme="dark"] {
  --bg-primary: #0F0F11;
  --bg-secondary: #17171A;
  --bg-card: #17171A;
  --bg-card-hover: #1F1F23;
  --bg-input: #1B1B1F;
  --border-color: rgba(255,255,255,0.09);
  --border-hover: rgba(255,255,255,0.16);
  --text-primary: #ECEAE3;
  --text-secondary: #A6A29A;
  --text-muted: #6E6B63;
  --accent-cyan: #E7332A;
  --accent-cyan-dim: rgba(231,51,42,0.16);
  --accent-green: #34d399;
  --accent-green-dim: rgba(52,211,153,0.15);
  --accent-red: #FF8A80;
  --accent-red-dim: rgba(255,138,128,0.15);
  --accent-amber: #FFC400;
  --accent-amber-dim: rgba(255,196,0,0.15);
  --accent-purple: #a78bfa;
  --accent-purple-dim: rgba(167,139,250,0.15);
  --shadow-glow: 0 0 60px rgba(231,51,42,0.10);
}

html[data-theme="dark"] ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); }
html[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

html[data-theme="dark"] .sidebar { background: rgba(15,15,24,0.92); }
html[data-theme="dark"] .nav-item:hover { background: rgba(255,255,255,0.04); }
html[data-theme="dark"] .content-header { background: rgba(10,10,15,0.82); }
html[data-theme="dark"] .range-date { color-scheme: dark; }

html[data-theme="dark"] .stat-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
html[data-theme="dark"] .bar-chart::before {
  background: repeating-linear-gradient(
      0deg, transparent, transparent calc(25% - 1px),
      rgba(255,255,255,0.04) calc(25% - 1px), rgba(255,255,255,0.04) 25%);
}
html[data-theme="dark"] .bar-tooltip { background: rgba(15,15,25,0.95); }

html[data-theme="dark"] tbody tr { border-bottom: 1px solid rgba(255,255,255,0.03); }
html[data-theme="dark"] tbody tr:hover { background: rgba(255,255,255,0.03); }

html[data-theme="dark"] .modal-overlay { background: rgba(5,5,10,0.8); }
html[data-theme="dark"] .modal { box-shadow: 0 24px 80px rgba(0,0,0,0.6); }
html[data-theme="dark"] .article-num { background: rgba(255,255,255,0.05); }
html[data-theme="dark"] .skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
}
html[data-theme="dark"] .filter-count { background: rgba(255,255,255,0.1); }

html[data-theme="dark"] .th-pw-toggle {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
}
html[data-theme="dark"] .th-pw-toggle:hover {
  background: rgba(237,27,53,0.12);
  border-color: rgba(237,27,53,0.35);
  color: #ed1b35;
}
html[data-theme="dark"] .th-pw-toggle.active {
  background: rgba(237,27,53,0.18);
  border-color: rgba(237,27,53,0.45);
  color: #ed1b35;
}

html[data-theme="dark"] .activity-row:hover { background: rgba(255,255,255,0.03); }
html[data-theme="dark"] .toast {
  background: rgba(20,20,30,0.96);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

/* ─── Đợt 31: user-management filter chip, level-source chip, upgrade box ─── */
.active-filter-chip {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 10px 0 2px; padding: 6px 12px;
  background: var(--accent-cyan-dim); color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan); border-radius: 999px;
  font-size: 0.82rem; font-weight: 600;
}
.active-filter-chip .chip-x {
  background: none; border: none; color: inherit; cursor: pointer;
  font-size: 0.9rem; line-height: 1; padding: 0 2px; opacity: 0.8;
}
.active-filter-chip .chip-x:hover { opacity: 1; }

/* "Nguồn lên cấp" chip next to a level badge */
.src-chip {
  display: inline-block; margin-left: 4px; padding: 1px 7px;
  border-radius: var(--radius-xs); font-size: 0.68rem; font-weight: 700;
  border: 1px solid var(--border-color); color: var(--text-secondary);
  background: var(--bg-input); vertical-align: middle; white-space: nowrap;
}
.src-chip.src-ref    { color: var(--accent-cyan);   border-color: var(--accent-cyan);   background: var(--accent-cyan-dim); }
.src-chip.src-donate { color: var(--accent-amber);  border-color: var(--accent-amber);  background: var(--accent-amber-dim); }
.src-chip.src-unit   { color: var(--accent-purple, var(--text-secondary)); }
.src-chip.src-deal   { color: var(--accent-green); border-color: var(--accent-green); background: var(--accent-green-dim); }

/* Pending-upgrade highlight block in the user modal */
.upgrade-pending-box {
  margin: 4px 0 14px; padding: 12px 14px;
  border: 1px solid var(--accent-amber); border-radius: var(--radius-sm);
  background: var(--accent-amber-dim);
}

/* Amber status chip (đợt 31 R — "chờ xử lý" trong lịch sử ủng hộ) */
.chip-warn { background: var(--accent-amber-dim); color: var(--accent-amber); border-color: transparent; }

/* Ô "Ghi chú" trong lịch sử ủng hộ. max-width đặt thẳng trên <td> KHÔNG ép được
   xuống dòng (bảng đang ở table-layout: auto — trình duyệt vẫn dàn chữ theo bề
   rộng tự nhiên rồi tràn ra ngoài, đè lên cột Thời điểm). Phải ràng buộc trên
   một khối con thì mới ngắt dòng đúng. */
/* table-layout: fixed để chia tỉ lệ cột theo ý mình. Ở chế độ auto mặc định,
   cột Thao tác + Người dùng giành hết chỗ, ép Ghi chú còn ~110px và chữ xuống
   7 dòng. .table-wrapper vẫn cuộn ngang khi màn hình hẹp nhờ min-width. */
#upgrade-requests-table { table-layout: fixed; min-width: 960px; }
#upgrade-requests-table th:nth-child(1) { width: 16%; }
#upgrade-requests-table th:nth-child(2) { width: 21%; }
#upgrade-requests-table th:nth-child(3) { width: 21%; }
#upgrade-requests-table th:nth-child(4) { width: 11%; }
#upgrade-requests-table th:nth-child(5) { width: 10%; }
#upgrade-requests-table th:nth-child(6) { width: 21%; } /* đủ cho 3 nút Duyệt·Tích ảo·Xoá */
/* Cột cấp giờ mang cả nhãn cấp ("Cấp 3 · ⭐⭐ VIP", đợt 44) nên dài hơn ô —
   bảng table-layout:fixed + nowrap sẽ để chữ TRÀN đè sang cột ghi chú. Cho
   xuống dòng thay vì đè. */
#upgrade-requests-table td:nth-child(2) { white-space: normal; overflow-wrap: anywhere; line-height: 1.5; }
/* Nút thao tác được phép xuống dòng thay vì đẩy rộng bảng ra ngoài khung. */
#upgrade-requests-table .user-actions { flex-wrap: wrap; }
.note-cell > div {
  white-space: normal; overflow-wrap: anywhere;
  font-size: 0.82rem; color: var(--text-muted); line-height: 1.45;
}

/* ─── Tab Ưu đãi (đợt 38) ─────────────────────────────────────────────── */
.nowrap { white-space: nowrap; }

.deal-form { padding: 16px 28px; display: flex; flex-direction: column; gap: 12px; max-width: 760px; }
.dl-row { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-secondary); }
.dl-row > span { flex: 0 0 200px; }
.dl-row > span i { color: var(--text-muted); font-style: normal; font-size: 0.78rem; }
.dl-row input[type="text"], .dl-row input[type="date"], .dl-row select {
  flex: 1; padding: 8px 10px; background: var(--bg-input);
  border: 1px solid var(--border-color); border-radius: var(--radius-xs);
  color: var(--text-primary); font-family: inherit; font-size: 0.85rem;
}
.dl-row input[type="checkbox"] { margin-right: auto; }
/* Ô số (điều kiện lượt mời, đợt 43): cùng kiểu với các ô kia nhưng KHÔNG kéo dài
   cả hàng — một con số 1–3 chữ số mà ô rộng bằng ô tên ưu đãi thì đọc như đang
   chờ nhập cả câu. */
.dl-row input[type="number"] {
  flex: 0 0 110px; padding: 8px 10px; background: var(--bg-input);
  border: 1px solid var(--border-color); border-radius: var(--radius-xs);
  color: var(--text-primary); font-family: inherit; font-size: 0.85rem;
  margin-right: auto;
}
.dl-actions { display: flex; gap: 10px; margin-top: 4px; }

/* Banner thông báo — ô nội dung + khung xem trước bám sát production */
#banner-form textarea {
  width: 100%; box-sizing: border-box; resize: vertical;
  padding: 8px 10px; background: var(--bg-input);
  border: 1px solid var(--border-color); border-radius: var(--radius-xs);
  color: var(--text-primary); font-family: inherit; font-size: 0.85rem; line-height: 1.4;
}
#banner-form textarea:focus { outline: none; border-color: var(--accent-cyan); box-shadow: 0 0 0 3px var(--accent-cyan-dim); }
.banner-preview {
  display: flex; align-items: center; gap: 8px;
  background: #DA251D; color: #FFF7E6; border-radius: var(--radius-xs);
  padding: 8px 12px; font-size: 0.85rem; font-weight: 500; overflow: hidden;
}
.banner-preview .bp-star { color: #FFC400; flex: none; font-size: 0.9rem; }
.banner-preview .bp-viewport { flex: 1 1 auto; min-width: 0; overflow: hidden; display: flex; justify-content: center; }
.banner-preview .bp-track { display: flex; align-items: center; white-space: nowrap; }
.banner-preview.marquee .bp-viewport { justify-content: flex-start; }
.banner-preview.marquee .bp-track { animation: bp-scroll linear infinite; }
.banner-preview.marquee .bp-text { padding-right: 3rem; }
.banner-preview.marquee:hover .bp-track { animation-play-state: paused; }
@keyframes bp-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ─── Thanh toán & duyệt tự động (đợt 44) ────────────────────────────── */

/* Ô địa chỉ webhook: readonly nhưng vẫn phải chọn/copy được, nên chỉ làm nhạt
   đi chứ không disable. */
#pay-url { color: var(--text-muted); font-family: var(--font-mono, monospace); font-size: 0.78rem; }
#pay-key { font-family: var(--font-mono, monospace); }

.chip-muted { background: var(--bg-input); color: var(--text-muted); border-color: transparent; }
.chip-err { background: var(--accent-red-dim); color: var(--accent-red); border-color: transparent; }

/* Hàng chip lọc dùng chung cho bảng lịch sử ủng hộ và nhật ký giao dịch. */
.chip-filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  padding: 12px 28px 0;
}
.chip-filter {
  padding: 5px 12px; font-size: 0.78rem; font-family: inherit;
  background: var(--bg-input); color: var(--text-secondary);
  border: 1px solid var(--border-color); border-radius: 999px; cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}
.chip-filter:hover { color: var(--text-primary); border-color: var(--text-muted); }
.chip-filter.active {
  background: var(--accent-cyan-dim); color: var(--accent-cyan); border-color: transparent; font-weight: 600;
}
.chip-search {
  flex: 1; min-width: 180px; max-width: 320px; margin-left: auto;
  padding: 5px 12px; font-size: 0.78rem; font-family: inherit;
  background: var(--bg-input); color: var(--text-primary);
  border: 1px solid var(--border-color); border-radius: 999px;
}

#payments-table { table-layout: fixed; min-width: 1100px; }
#payments-table th:nth-child(1) { width: 11%; }
#payments-table th:nth-child(2) { width: 9%; }
#payments-table th:nth-child(3) { width: 8%; }
#payments-table th:nth-child(4) { width: 17%; }
#payments-table th:nth-child(5) { width: 13%; }
#payments-table th:nth-child(6) { width: 8%; }
#payments-table th:nth-child(7) { width: 22%; }
#payments-table th:nth-child(8) { width: 12%; }
#payments-table .user-actions { flex-wrap: wrap; }
/* Thời điểm (chuỗi ngân hàng gửi, "2026-08-08 10:02:00") và cột lý do đều dài
   hơn ô; bảng fixed + nowrap sẽ để chữ đè sang cột bên. Cho xuống dòng. */
#payments-table td:nth-child(1),
#payments-table td:nth-child(7) { white-space: normal; overflow-wrap: anywhere; }

/* Kết quả thử khớp: một thẻ tách hẳn khỏi form để không ai nhầm nó với ô nhập. */
.pay-test-card {
  margin-top: 4px; padding: 14px 16px; font-size: 0.85rem; line-height: 1.6;
  background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}
.pay-test-card.err { color: var(--accent-red); }

@media (max-width: 780px) {
  .dl-row { flex-wrap: wrap; }
  .dl-row > span { flex-basis: 100%; }
}

/* Per-column header filter: the ▾ button + its popup menu (đợt 31 R) */
.th-filter {
  background: none; border: none; cursor: pointer; color: var(--text-muted);
  font-size: 0.8rem; padding: 0 2px; margin-left: 2px; line-height: 1; border-radius: var(--radius-xs);
}
.th-filter:hover { color: var(--accent-cyan); background: var(--accent-cyan-dim); }
.th-filter.active { color: var(--accent-cyan); background: var(--accent-cyan-dim); }
.col-filter-menu {
  position: absolute; z-index: 1000; min-width: 200px; padding: 6px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-sm); box-shadow: 0 12px 32px rgba(0,0,0,0.18);
  display: flex; flex-direction: column; gap: 2px;
}
.col-filter-opt {
  text-align: left; background: none; border: none; cursor: pointer;
  padding: 7px 10px; border-radius: var(--radius-xs); color: var(--text-primary);
  font-size: 0.85rem; white-space: nowrap;
}
.col-filter-opt:hover { background: var(--accent-cyan-dim); color: var(--accent-cyan); }

/* ═══ Đợt 32: báo cáo gọn — section heading, action strip, stat strip, dist list ═══ */

/* Tiêu đề tầng trên Tổng quan: tên khu vực + tag phạm vi thời gian */
.section-heading {
  display: flex; align-items: center; gap: 10px;
  margin: 4px 2px 12px;
}
.section-heading h3 { font-size: 1rem; font-weight: 800; color: var(--text-primary); }
.scope-tag {
  padding: 3px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 700;
  background: var(--bg-input); border: 1px solid var(--border-color); color: var(--text-muted);
  white-space: nowrap;
}

/* Tầng "Cần xử lý": mỗi việc 1 dòng bấm được; hết việc → 1 dòng xanh */
.action-strip { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.action-row {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 12px 16px; border-radius: var(--radius-sm); cursor: pointer;
  border: 1px solid var(--border-color); background: var(--bg-card);
  font: inherit; color: var(--text-primary); text-align: left;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.action-row:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(0,0,0,0.08); }
.action-row .action-icon { font-size: 1.1rem; }
.action-row .action-text { flex: 1; font-size: 0.9rem; }
.action-row .action-text b { font-size: 1.05rem; font-weight: 800; }
.action-row .action-go { font-size: 0.82rem; font-weight: 700; white-space: nowrap; }
.action-row.warn   { border-color: var(--accent-amber); background: var(--accent-amber-dim); }
.action-row.warn .action-go, .action-row.warn .action-text b { color: var(--accent-amber); }
.action-row.danger { border-color: var(--accent-red); background: var(--accent-red-dim); }
.action-row.danger .action-go, .action-row.danger .action-text b { color: var(--accent-red); }
.action-row.ok {
  border-color: var(--accent-green); background: var(--accent-green-dim);
  color: var(--accent-green); cursor: default; font-weight: 600;
}
.action-row.ok:hover { transform: none; box-shadow: none; }

/* Dải số gọn (Thành viên / Mời bạn): giá trị to, nhãn nhỏ, bấm là lọc */
.stat-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0; padding: 6px 10px;
}
.stat-item {
  display: flex; flex-direction: column; gap: 2px; align-items: flex-start;
  padding: 12px 14px; border: none; background: none; cursor: pointer;
  font: inherit; text-align: left; border-radius: var(--radius-xs);
  border-left: 1px solid var(--border-color);
}
.stat-strip .stat-item:first-child { border-left: none; }
.stat-item:hover { background: var(--bg-card-hover); }
.stat-item.static { cursor: default; }
.stat-item.static:hover { background: none; }
.stat-item-value { font-size: 1.35rem; font-weight: 800; color: var(--text-primary); line-height: 1.1; }
.stat-item-label { font-size: 0.78rem; font-weight: 700; color: var(--text-secondary); }
.stat-item-sub { font-size: 0.7rem; color: var(--text-muted); }
.stat-item.muted .stat-item-value { color: var(--text-muted); }

/* Phân bố cấp bậc: 1 dòng / cấp — tên, thanh tỉ lệ, số lượng */
.dist-list { display: flex; flex-direction: column; padding: 8px 14px 12px; }
.dist-row {
  display: grid; grid-template-columns: minmax(160px, 240px) 1fr 110px;
  align-items: center; gap: 14px; width: 100%;
  padding: 8px 10px; border: none; background: none; cursor: pointer;
  font: inherit; text-align: left; border-radius: var(--radius-xs);
}
.dist-row:hover { background: var(--bg-card-hover); }
.dist-name { font-size: 0.86rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dist-lv { color: var(--text-muted); font-weight: 500; font-size: 0.76rem; }
.dist-bar { height: 8px; border-radius: 999px; background: var(--bg-input); overflow: hidden; }
.dist-bar-fill {
  display: block; height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, #ed1b35, #ff6b35);
}
.dist-count { font-size: 0.86rem; font-weight: 800; color: var(--text-primary); text-align: right; white-space: nowrap; }
.dist-pct { color: var(--text-muted); font-weight: 600; font-size: 0.76rem; }

/* Chip "đang chờ" trên header lịch sử ủng hộ */
.pending-chip {
  display: inline-flex; align-items: center; gap: 5px; margin-left: 10px;
  padding: 3px 10px; border-radius: 999px; cursor: pointer; font: inherit;
  font-size: 0.76rem; font-weight: 700; vertical-align: middle;
  background: var(--accent-amber-dim); color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}
.pending-chip:hover { filter: brightness(1.06); }

/* Dark-mode nuances */
html[data-theme="dark"] .action-row:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.35); }
html[data-theme="dark"] .stat-item:hover,
html[data-theme="dark"] .dist-row:hover { background: rgba(255,255,255,0.04); }

@media (max-width: 760px) {
  .stat-item { border-left: none; }
  .dist-row { grid-template-columns: minmax(110px, 1fr) 1fr 90px; gap: 8px; }
}