:root {
  --bg: #f3f4f8;
  --card: #ffffff;
  --border: #e4e7ee;
  --text: #1b1f3b;
  --text-muted: #6b7280;
  --primary: #1f3b73;
  --primary-light: #e8edf7;
  --accent: #0ea5b7;
  --accent-light: #e2f7f9;
  --danger: #dc2f45;
  --danger-light: #fbe6e9;
  --amber: #f5a524;
  --purple: #7c5cfc;
  --slate: #64748b;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(20, 24, 48, 0.04), 0 4px 16px rgba(20, 24, 48, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

.container {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* Header */
.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-bottom: 20px;
}

.app-header .container {
  padding-bottom: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.app-header .eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.app-header p.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 13.5px;
  max-width: 640px;
}

.header-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.header-links {
  display: flex;
  gap: 10px;
}

.header-links a {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 20px;
  background: var(--primary-light);
}

.header-links a:hover { background: #dbe4f5; }

/* Filter bar */
.filter-bar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.filter-bar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.filter-bar-top h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.filter-status {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--text-muted);
}

#activeFilterCount {
  font-weight: 700;
  color: var(--primary);
}

.btn-reset {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 12.5px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
}

.btn-reset:hover { background: var(--danger-light); border-color: var(--danger); color: var(--danger); }

.slicer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dropdown {
  position: relative;
}

.dropdown-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 10px 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.12s ease;
}

.dropdown-btn:hover { border-color: var(--primary); }

.dropdown-btn .dd-chevron {
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--slate);
  border-bottom: 1.5px solid var(--slate);
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.dropdown.open .dd-chevron {
  transform: rotate(-135deg);
  margin-top: 2px;
}

.dropdown-btn.has-active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.dd-badge {
  background: var(--primary);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 6px;
  line-height: 1.4;
}

.dropdown-panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 210px;
  max-height: 280px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 28px rgba(20, 24, 48, 0.14);
  padding: 6px;
  z-index: 30;
  display: none;
}

.dropdown.open .dropdown-panel {
  display: block;
}

.dd-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12.5px;
  cursor: pointer;
  user-select: none;
}

.dd-option:hover { background: var(--bg); }

.dd-option input[type="checkbox"] {
  accent-color: var(--primary);
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* KPI grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  border-top: 3px solid var(--primary);
}

.kpi-card.alert { border-top-color: var(--danger); }
.kpi-card.warn { border-top-color: var(--amber); }
.kpi-card.accent { border-top-color: var(--accent); }

.kpi-label {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.kpi-value.alert { color: var(--danger); }

.kpi-sub {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.kpi-sub strong { color: var(--text); }

/* Charts grid */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px 12px;
  display: flex;
  flex-direction: column;
}

.chart-card.span-2 { grid-column: span 2; }

.chart-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 4px;
}

.chart-card h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.chart-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.chart-caption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.chart-caption strong { color: var(--text); }

.chart-wrap {
  position: relative;
  height: 240px;
  margin-top: 8px;
}

/* Table */
.table-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  margin-bottom: 24px;
}

.table-card h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 700;
}

.table-card .chart-hint { display: block; margin-bottom: 10px; }

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -18px;
  padding: 0 18px;
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 12.5px;
}

thead th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
}

tbody td {
  padding: 8px 10px;
  border-bottom: 1px solid #f0f1f5;
}

tbody tr.is-fraud { background: var(--danger-light); }

.badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
}

.badge.fraud { background: var(--danger); color: #fff; }
.badge.ok { background: #e6f4ea; color: #1a7f37; }

footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  padding: 8px 0 32px;
}

footer a { color: var(--primary); }

@media (max-width: 1100px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .chart-card.span-2 { grid-column: span 1; }
}

.table-swipe-hint { display: none; }

@media (max-width: 640px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .app-header .container { flex-direction: column; }
  .header-meta { align-items: flex-start; }
  .table-swipe-hint { display: block; margin-bottom: 8px; font-style: italic; }
  table { min-width: 560px; }
}