/* KPI 카드 */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.kpi-label {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.kpi-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

/* 차트 카드 */
.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  min-height: 360px;
}
.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  gap: 12px;
  flex-wrap: wrap;
}
.chart-card-header h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.chart-sub {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 12px;
}
.chart-controls {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.chart-controls label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.chart-controls select {
  font-family: inherit;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}
.chart-controls .chart-sub { margin: 0; }
.chart-body { flex: 1; min-height: 280px; }

/* 페이지 */
.page { display: block; }
.page.hidden { display: none; }