:root {
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #182136;
  --muted: #6f7890;
  --line: #e4e9f2;
  --blue: #2f6bff;
  --green: #23a568;
  --purple: #8b5cf6;
  --amber: #f59e0b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

.dashboard-shell {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #111827;
  color: #d7deee;
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.brand { font-size: 1.35rem; font-weight: 700; color: #fff; margin-bottom: 1.8rem; }
.nav-list { display: grid; gap: 8px; }
.nav-item {
  background: transparent; border: 0; color: #bcc7df; text-align: left;
  padding: 10px 12px; border-radius: 10px; font-size: 0.95rem; cursor: pointer;
}
.nav-item.active { background: rgba(47, 107, 255, 0.2); color: #fff; }
.sidebar-meta { font-size: 0.78rem; color: #9babcb; }
.profile { display: flex; gap: 10px; align-items: center; margin-top: 10px; }
.avatar { width: 32px; height: 32px; border-radius: 999px; background: #2f6bff; display: grid; place-items: center; color: #fff; font-size: 0.72rem; font-weight: 700; }

.content-area { padding: 24px; }
.header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
.header h1 { margin: 0; font-size: 1.75rem; }
.header p { margin: 6px 0 0; color: var(--muted); }
.header-controls { display: flex; gap: 10px; align-items: end; }
label { font-size: 0.78rem; color: var(--muted); display: grid; gap: 4px; }
select, .refresh-btn {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  height: 38px;
  padding: 0 12px;
  color: var(--text);
}
.refresh-btn { background: var(--blue); color: #fff; border-color: var(--blue); font-weight: 600; }

.kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(190px, 1fr)); gap: 14px; margin-bottom: 14px; }
.kpi-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px;
  display: flex; justify-content: space-between; align-items: center; min-height: 130px;
  box-shadow: 0 2px 8px rgba(16, 24, 40, 0.04);
}
.kpi-top { display: flex; align-items: center; gap: 8px; }
.kpi-icon { width: 24px; height: 24px; border-radius: 999px; display: inline-block; }
.kpi-icon.blue { background: rgba(47,107,255,.16); }
.kpi-icon.green { background: rgba(35,165,104,.16); }
.kpi-icon.purple { background: rgba(139,92,246,.16); }
.kpi-icon.amber { background: rgba(245,158,11,.16); }
.kpi-title { font-size: .82rem; color: var(--muted); }
.kpi-card h3 { margin: 10px 0 4px; font-size: 1.45rem; }
.kpi-card p { margin: 0; font-size: .79rem; color: var(--muted); }
.sparkline { width: 120px; height: 44px; }

.chart-grid, .lower-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 14px; margin-bottom: 14px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px;
  box-shadow: 0 2px 8px rgba(16, 24, 40, 0.04);
}
.card-header { margin-bottom: 10px; }
.card-header h2 { margin: 0; font-size: 1.02rem; }
.split { display: flex; justify-content: space-between; align-items: center; }
.range-toggle { display: flex; gap: 6px; }
.range-pill {
  border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 10px; font-size: .74rem;
}
.range-pill.active { background: #eef3ff; border-color: #c8d6ff; color: #2451d3; }
.legend, .bar-legend { display: flex; gap: 14px; align-items: center; margin-top: 8px; color: var(--muted); font-size: .78rem; }
.legend i, .bar-legend i { width: 10px; height: 10px; border-radius: 99px; display: inline-block; margin-right: 6px; }
.legend-zhvi { background: #7da0ff; }
.legend-zhvf { background: #2f6bff; }
.line-chart { width: 100%; height: 280px; background: linear-gradient(#fff, #fcfdff); border-radius: 12px; }

.bar-chart { display: flex; align-items: end; justify-content: space-around; min-height: 180px; padding-top: 20px; }
.bar-group { text-align: center; }
.bar-wrap { display: flex; gap: 7px; align-items: end; height: 130px; }
.bar { width: 20px; border-radius: 8px 8px 0 0; display: inline-block; }
.bar.zhvi { background: #9fbbff; }
.bar.zhvf { background: #2f6bff; }
.bar-label { margin-top: 8px; font-size: 0.78rem; color: var(--muted); }

.comparison-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.comparison-table th, .comparison-table td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; }
.comparison-table th { color: var(--muted); font-weight: 600; }
.dot { width: 9px; height: 9px; border-radius: 999px; display: inline-block; margin-right: 6px; }
.positive { color: var(--green); font-weight: 600; }
.negative { color: #dc2626; font-weight: 600; }
.neutral { color: var(--muted); }

.insights-card ul { margin: 8px 0 0; padding-left: 18px; color: #3d4660; display: grid; gap: 10px; }
.insights-card li { line-height: 1.35; }
.insight-footnote { margin-top: 12px; color: var(--muted); font-size: .75rem; }

@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, minmax(190px, 1fr)); }
  .chart-grid, .lower-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .dashboard-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .header { flex-direction: column; gap: 12px; }
}


.error-card {
  grid-column: 1 / -1;
}
.error-card h3 { margin: 0 0 8px; }
.error-card p { margin: 0 0 8px; color: var(--muted); }
.error-card code {
  display: block;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.76rem;
  color: #5a274b;
  background: #fff2fa;
  border: 1px solid #ffd5e9;
  border-radius: 8px;
  padding: 10px;
}


.chart-grid-line { stroke: #eef2f8; stroke-width: 1; }
.chart-axis-label { fill: #7b859f; font-size: 10px; text-anchor: end; }
.sparkline-fallback { font-size: 0.72rem; color: var(--muted); }

.bar-values { display: grid; gap: 2px; margin-top: 6px; font-size: 0.68rem; color: #7a859d; }

.insights-card li.insight-caution { color: #805200; }
.insights-card li.insight-normal { color: #3d4660; }