:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #5b6472;
  --accent: #0f766e;
  --accent-2: #1d4ed8;
  --warn: #b45309;
  --danger: #b91c1c;
  --border: #d9e1ea;
  --header-grad-start: #0f172a;
  --header-grad-mid: #164e63;
  --header-grad-end: #0f766e;
  --body-grad-start: #eef3f7;
  --body-grad-end: #f7f9fb;
  --kpi-grad-start: #ffffff;
  --kpi-grad-end: #f8fbff;
  --chart-bg: #ffffff;
  --table-divider: #e8edf3;
  --table-header-bg: #f7fafc;
  --badge-bg: #e2e8f0;
  --problem-bg: #f8fbfc;
  --logo-bg: rgba(255, 255, 255, 0.08);
  --toggle-bg: rgba(255, 255, 255, 0.12);
  --toggle-border: rgba(255, 255, 255, 0.45);
  --toggle-text: #ffffff;
}

body.dark-theme {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #334155;
  --header-grad-start: #020617;
  --header-grad-mid: #0f172a;
  --header-grad-end: #164e63;
  --body-grad-start: #020617;
  --body-grad-end: #0b1220;
  --kpi-grad-start: #0f172a;
  --kpi-grad-end: #111827;
  --chart-bg: #0f172a;
  --table-divider: #334155;
  --table-header-bg: #1e293b;
  --badge-bg: #1e293b;
  --problem-bg: #0b1322;
  --logo-bg: rgba(255, 255, 255, 0.12);
  --toggle-bg: rgba(15, 23, 42, 0.75);
  --toggle-border: rgba(148, 163, 184, 0.6);
  --toggle-text: #e2e8f0;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Segoe UI, Arial, sans-serif;
  background: linear-gradient(180deg, var(--body-grad-start) 0%, var(--body-grad-end) 100%);
  color: var(--text);
}
header {
  background: linear-gradient(135deg, var(--header-grad-start), var(--header-grad-mid) 60%, var(--header-grad-end));
  color: white;
  padding: 28px 32px;
}
.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-toggle {
  border: 1px solid var(--toggle-border);
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--toggle-bg);
  color: var(--toggle-text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.report-logo {
  max-height: 64px;
  width: auto;
  object-fit: contain;
  border-radius: 8px;
  background: var(--logo-bg);
  padding: 6px 8px;
}
header h1 { margin: 0 0 8px; font-size: 30px; }
header p { margin: 4px 0; opacity: 0.95; }
main { padding: 24px 28px 40px; }
.section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 22px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}
.section h2 { margin-top: 0; color: #0f172a; }
body.dark-theme .section h2 { color: #e5e7eb; }
.tab-nav-wrap {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}
.tab-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
}
.tab-button {
  border: 1px solid var(--border);
  background: var(--chart-bg);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.tab-button.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #ffffff;
  border-color: transparent;
}
.tab-panel {
  display: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.tab-panel.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.date-slicer-group {
  margin: 10px 0 14px;
  display: grid;
  gap: 10px;
}
.slicer-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--chart-bg);
  padding: 8px 10px;
}
.slicer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.slicer-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.slicer-actions {
  display: flex;
  gap: 6px;
}
.slicer-action,
.slicer-value-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
.slicer-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.slicer-action {
  padding: 3px 8px;
  font-size: 11px;
}
.slicer-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.slicer-value-btn {
  padding: 5px 10px;
  font-size: 12px;
}
.slicer-value-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #fff;
}
.slicer-action:focus-visible,
.slicer-value-btn:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 1px;
}
.active-filter-summary {
  margin: 2px 0 0;
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}
.kpi-card {
  background: linear-gradient(180deg, var(--kpi-grad-start), var(--kpi-grad-end));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}
.kpi-label { color: var(--muted); font-size: 13px; }
.kpi-value { font-size: 22px; font-weight: 700; margin-top: 8px; }
.kpi-note { color: var(--muted); font-size: 12px; margin-top: 6px; }
.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.filter-group label { display: block; font-size: 12px; margin-bottom: 6px; color: var(--muted); }
.filter-group select, .filter-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--chart-bg);
  color: var(--text);
}
.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 16px;
  grid-auto-rows: auto;
}
.compact-grid {
  gap: 10px;
}
.channel-kpi-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.chart-panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px;
  background: var(--chart-bg);
  min-height: 0;
  height: auto;
}
.chart-panel.full { grid-column: 1 / -1; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--table-divider); padding: 8px 10px; text-align: left; }
th { background: var(--table-header-bg); }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; background: var(--badge-bg); margin-right: 6px; font-size: 12px; }
.small { color: var(--muted); font-size: 12px; }
.problem-box {
  border-left: 4px solid var(--accent);
  padding: 12px 14px;
  margin-bottom: 14px;
  background: var(--problem-bg);
}
.problem-box h3 { margin: 0 0 8px; }
.summary-callout {
  background: linear-gradient(135deg, rgba(15,118,110,0.08), rgba(29,78,216,0.08));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}
.insight-list {
  margin: 0;
  padding-left: 20px;
}
.insight-list li {
  margin: 6px 0;
}
footer { padding: 0 28px 28px; color: var(--muted); font-size: 12px; }

.filter-group select,
.filter-group input,
.legend-item,
nav a {
  cursor: pointer;
}

.js-plotly-plot .bars .point,
.js-plotly-plot .scatterlayer .point,
.js-plotly-plot .scatterlayer .trace .points path,
.js-plotly-plot .pielayer .slice,
.js-plotly-plot .choroplethlayer path,
.js-plotly-plot .legend .legendtoggle {
  cursor: pointer;
}

.js-plotly-plot .draglayer,
.js-plotly-plot .nsewdrag,
.js-plotly-plot .nsdrag,
.js-plotly-plot .ewdrag,
.js-plotly-plot .swdrag,
.js-plotly-plot .ndrag,
.js-plotly-plot .sdrag,
.js-plotly-plot .wdrag,
.js-plotly-plot .edrag,
.js-plotly-plot .plotbg,
.js-plotly-plot .bg,
.js-plotly-plot .cursor-crosshair {
  cursor: default !important;
}

@media (max-width: 720px) {
  .header-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .report-logo {
    max-height: 56px;
  }
  .tab-nav-wrap {
    position: static;
  }
  header, main, footer { padding-left: 16px; padding-right: 16px; }
}