:root {
  --c-bg: #f3f4f6;
  --c-surface: #ffffff;
  --c-sidebar: #111827;
  --c-sidebar-hover: #1f2937;
  --c-sidebar-active: #2563eb;
  --c-accent: #2563eb;
  --c-accent-hover: #1d4ed8;
  --c-text-1: #111827;
  --c-text-2: #4b5563;
  --c-text-3: #9ca3af;
  --c-border: #e5e7eb;
  --c-border-light: #f3f4f6;
  --c-success: #059669;
  --c-warning: #d97706;
  --c-danger: #dc2626;
  --c-info: #2563eb;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 13.5px; color: var(--c-text-1); background: var(--c-bg); }

.hidden { display: none !important; }
.mt16 { margin-top: 16px; }

.login-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg);
}
.login-box {
  width: 380px;
  background: var(--c-surface);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.login-logo { font-size: 28px; font-weight: 700; text-align: center; }
.login-sub { font-size: 13px; color: var(--c-text-3); margin-top: 4px; text-align: center; }
.login-err { color: var(--c-danger); font-size: 12px; margin-top: 8px; }

.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--c-sidebar);
  color: #ffffff;
  position: fixed;
  height: 100%;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.sidebar-logo { padding: 20px 24px; font-size: 18px; font-weight: 700; }
.sidebar-nav { flex: 1; padding: 0 8px; }
.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 6px;
  color: #9ca3af;
  text-decoration: none;
  margin: 2px 0;
  font-size: 13.5px;
  transition: background 120ms;
}
.nav-item:hover { background: var(--c-sidebar-hover); color: #ffffff; }
.nav-item.active { background: var(--c-sidebar-active); color: #ffffff; }
.nav-icon { width: 20px; margin-right: 10px; text-align: center; font-size: 14px; }
.sidebar-footer { padding: 16px 24px; }
.btn-logout { background: none; border: none; color: #9ca3af; cursor: pointer; font-size: 13px; }
.badge {
  background: var(--c-danger);
  color: #ffffff;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  margin-left: 8px;
}

.main { margin-left: 220px; flex: 1; min-height: 100vh; }
.topbar {
  height: 56px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 90;
}
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-time { font-size: 12px; color: var(--c-text-3); }

.content { padding: 24px; }
.page { display: none; }
.page.active { display: block; }

.stat-cards { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-bottom: 24px; }
#page-fraud .stat-cards { grid-template-columns: repeat(4, 1fr); }
#page-analytics .stat-cards { grid-template-columns: repeat(5, 1fr); }
.stat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 16px 20px;
}
.stat-label { font-size: 12px; color: var(--c-text-3); margin-bottom: 4px; }
.stat-value { font-size: 24px; font-weight: 700; color: var(--c-text-1); }
.stat-compare { font-size: 11px; margin-top: 4px; }
.stat-compare.up { color: var(--c-success); }
.stat-compare.up::before { content: "\2191 "; }
.stat-compare.down { color: var(--c-danger); }
.stat-compare.down::before { content: "\2193 "; }
#page-realtime .stat-cards { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}
.card-head {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-head-tools { display: flex; gap: 8px; align-items: center; }
.chart-card { min-height: 200px; }
canvas { width: 100%; display: block; }

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }

.campaign-card { cursor: pointer; transition: border-color 120ms; }
.campaign-card:hover { border-color: var(--c-accent); }
.campaign-card .campaign-status { display: inline-block; }
.campaign-card .campaign-meta { display: flex; gap: 16px; color: var(--c-text-3); font-size: 12px; margin-top: 12px; }
.campaign-card .campaign-stats { display: flex; gap: 24px; margin-top: 8px; }
.campaign-card .campaign-stats strong { font-size: 18px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--c-border);
  color: var(--c-text-2);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--c-border-light); vertical-align: middle; }
.data-table tbody tr:hover { background: #f9fafb; }
.data-table .mono { font-family: "SF Mono", "Cascadia Code", monospace; }

.kpi-bar {
  height: 6px;
  background: var(--c-border-light);
  border-radius: 3px;
  overflow: hidden;
  width: 80px;
  display: inline-block;
  vertical-align: middle;
}
.kpi-fill { height: 100%; border-radius: 3px; transition: width 500ms; }
.kpi-fill.green { background: var(--c-success); }
.kpi-fill.yellow { background: var(--c-warning); }
.kpi-fill.red { background: var(--c-danger); }
.kpi-text { font-size: 11px; color: var(--c-text-3); margin-left: 6px; }

.status-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}
.status-on { background: #ecfdf5; color: var(--c-success); }
.status-off { background: #f3f4f6; color: var(--c-text-3); }
.status-paused { background: #fffbeb; color: var(--c-warning); }
.status-active { background: #ecfdf5; color: var(--c-success); }
.status-draft { background: #f3f4f6; color: var(--c-text-3); }
.status-ended { background: #f3f4f6; color: var(--c-text-3); }

.btn {
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  border: none;
  transition: all 120ms;
}
.btn-primary { background: var(--c-accent); color: #ffffff; }
.btn-primary:hover { background: var(--c-accent-hover); }
.btn-outline { background: var(--c-surface); border: 1px solid var(--c-border); color: var(--c-text-2); }
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-xs { padding: 2px 8px; font-size: 11px; }
.btn-block { width: 100%; display: block; }
.btn-danger { background: var(--c-danger); color: #ffffff; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12px; color: var(--c-text-2); margin-bottom: 6px; font-weight: 500; }
.field label em { color: var(--c-danger); font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--c-text-1);
  background: var(--c-surface);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.field-row { display: flex; gap: 12px; }

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.select-input { padding: 7px 12px; border: 1px solid var(--c-border); border-radius: 6px; font-size: 13px; background: var(--c-surface); min-width: 120px; }
.search-input { padding: 7px 12px; border: 1px solid var(--c-border); border-radius: 6px; font-size: 13px; min-width: 180px; }
.date-input { padding: 7px 12px; border: 1px solid var(--c-border); border-radius: 6px; font-size: 13px; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(2px);
}
.modal.hidden { display: none; }
.modal-box {
  background: var(--c-surface);
  border-radius: 12px;
  width: 480px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  padding: 0;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--c-border);
}
.modal-head span { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 18px; cursor: pointer; color: var(--c-text-3); }
.modal form { padding: 24px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 12px; padding-top: 12px; }

.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 300;
  transition: all 300ms;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.toast.hidden { opacity: 0; transform: translateY(-10px); pointer-events: none; }
.toast.success { background: var(--c-success); color: #ffffff; }
.toast.error { background: var(--c-danger); color: #ffffff; }
.toast.info { background: var(--c-accent); color: #ffffff; }

.rank-list { display: flex; flex-direction: column; gap: 8px; }
.rank-item { display: flex; align-items: center; gap: 12px; padding: 8px 0; }
.rank-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-2);
  flex-shrink: 0;
}
.rank-item:nth-child(1) .rank-num { background: #fbbf24; color: #ffffff; }
.rank-item:nth-child(2) .rank-num { background: #9ca3af; color: #ffffff; }
.rank-item:nth-child(3) .rank-num { background: #b45309; color: #ffffff; }
.rank-name { flex: 1; font-size: 13px; }
.rank-value { font-weight: 600; font-size: 13px; }
.rank-bar { height: 6px; background: var(--c-accent); border-radius: 3px; margin-top: 4px; }

.bar-list { display: flex; flex-direction: column; gap: 8px; }
.bar-item { display: flex; align-items: center; gap: 12px; }
.bar-name { width: 80px; font-size: 12px; color: var(--c-text-2); text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; height: 8px; background: var(--c-border-light); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--c-accent); border-radius: 4px; }
.bar-count { font-size: 12px; color: var(--c-text-2); width: 40px; }

.pagination { display: flex; justify-content: center; gap: 4px; margin-top: 16px; }
.pagination button {
  padding: 4px 10px;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  background: var(--c-surface);
  cursor: pointer;
  font-size: 12px;
}
.pagination button.active { background: var(--c-accent); color: #ffffff; border-color: var(--c-accent); }
.pagination button:disabled { opacity: 0.5; cursor: not-allowed; }

.rt-counter {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.rt-label { font-size: 12px; color: var(--c-text-3); }
.rt-value { font-size: 40px; font-weight: 700; color: var(--c-text-1); line-height: 1.2; margin-top: 8px; }
.stat-cards .rt-counter { grid-template-columns: repeat(4, 1fr); }

.rt-layout { display: flex; gap: 16px; height: calc(100vh - 220px); }
.rt-left { flex: 1; display: flex; flex-direction: column; gap: 0; min-width: 0; }
.rt-map-container { flex: 1; position: relative; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 8px; overflow: hidden; min-height: 300px; }
.rt-map { width: 100%; height: 100%; }

.rt-panel { width: 380px; display: flex; flex-direction: column; gap: 16px; overflow-y: auto; }
.rt-panel-section { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 8px; padding: 20px; }
.rt-panel-head { font-size: 14px; font-weight: 600; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--c-border-light); }
.rt-stream-list { display: flex; flex-direction: column; gap: 12px; max-height: 400px; overflow-y: auto; }
.rt-stream-item { display: flex; flex-direction: column; gap: 4px; padding: 10px; background: var(--c-border-light); border-radius: 6px; font-size: 12px; transition: all 120ms; }
.rt-stream-item:hover { background: #e5e7eb; }
.rt-stream-ip { font-family: "SF Mono", "Cascadia Code", monospace; font-weight: 600; color: var(--c-accent); }
.rt-stream-meta { display: flex; gap: 12px; color: var(--c-text-3); font-size: 11px; }
.rt-stream-location { color: var(--c-text-2); }
.rt-stream-time { color: var(--c-text-3); font-size: 11px; margin-top: 2px; }

.rt-tooltip { background: rgba(37,99,235,0.9) !important; color: #fff !important; border: none !important; border-radius: 4px !important; padding: 3px 8px !important; font-size: 11px !important; box-shadow: 0 2px 6px rgba(0,0,0,0.3) !important; }
.rt-tooltip::before { border-top-color: rgba(37,99,235,0.9) !important; }

.alert-mini-list { display: flex; flex-direction: column; gap: 6px; }
.alert-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--c-border-light);
  font-size: 12px;
}
.alert-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.alert-dot.critical { background: var(--c-danger); }
.alert-dot.warning { background: var(--c-warning); }
.alert-dot.info { background: var(--c-accent); }
.alert-text { flex: 1; color: var(--c-text-2); }
.alert-time { color: var(--c-text-3); font-size: 11px; }

.checkbox-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 8px;
}
.checkbox-item { display: flex; align-items: center; gap: 8px; padding: 4px 8px; border-radius: 4px; }
.checkbox-item:hover { background: var(--c-border-light); }
.checkbox-item input { margin: 0; }

.qr-thumb {
  width: 32px;
  height: 32px;
  cursor: pointer;
  display: inline-block;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 2px;
}
.qr-thumb:hover { border-color: var(--c-accent); }
.qr-thumb img { width: 100%; height: 100%; }
.qr-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 250;
}
.qr-overlay-box { background: var(--c-surface); border-radius: 12px; padding: 32px; text-align: center; }

.severity-critical { color: var(--c-danger); font-weight: 600; }
.severity-warning { color: var(--c-warning); font-weight: 600; }
.severity-info { color: var(--c-accent); }

.settings-sections { max-width: 640px; }
.settings-sections .card { margin-bottom: 16px; }
.sys-info { font-size: 13px; color: var(--c-text-3); }

.actions { display: flex; gap: 6px; }

.chart-legend { display: flex; gap: 12px; font-size: 11px; }
.leg { display: flex; align-items: center; gap: 4px; }
.leg::before { content: ''; display: inline-block; width: 10px; height: 3px; border-radius: 2px; }
.leg.pv::before { background: var(--c-accent); }
.leg.uv::before { background: var(--c-success); }
.leg.rd::before { background: var(--c-warning); }

.app.fullscreen .sidebar { display: none; }
.app.fullscreen .main { margin-left: 0; }
.app.fullscreen .topbar { display: none; }
.app.fullscreen .content { padding: 0; }
.app.fullscreen .toolbar { position: absolute; top: 16px; right: 16px; z-index: 100; }
.app.fullscreen .rt-layout { height: 100vh; }
.app.fullscreen .rt-panel { display: none; }
.app.fullscreen .rt-map-overlay { top: 80px; }

@media (max-width: 1200px) {
  .stat-cards { grid-template-columns: repeat(3, 1fr); }
  .row-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .sidebar { width: 56px; }
  .sidebar .nav-item span { display: none; }
  .sidebar-logo { font-size: 0; }
  .sidebar-logo::after { content: "TG"; font-size: 16px; }
  .main { margin-left: 56px; }
}
@media (max-width: 768px) {
  .row-2 { grid-template-columns: 1fr; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
}