.chart-surface {
  position: relative;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 24px;
  background:
    linear-gradient(180deg, var(--chart-surface-start), var(--chart-surface-end)),
    radial-gradient(circle at top right, var(--chart-surface-glow), transparent 42%);
  box-shadow:
    0 18px 42px var(--shadow-color),
    inset 0 1px 0 var(--chart-highlight);
  overflow: hidden;
}

.chart-surface::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, var(--chart-highlight), transparent 28%);
  opacity: 0.9;
}

.chart-host {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 280px;
  padding: 12px 10px 2px;
}

.chart-host--sm {
  height: 260px;
}

.chart-host--md {
  height: 320px;
}

.chart-host--lg {
  height: 380px;
}

.chart-host--xl {
  height: 440px;
}

.chart-stack {
  display: grid;
  gap: 16px;
}

.chart-stack .chart-surface {
  min-height: 220px;
}

.chart-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.report-panel {
  padding: 20px 20px 10px;
}

.report-panel__header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.report-panel__title {
  margin: 0;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.report-panel__subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.report-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.report-kpi-card {
  position: relative;
  overflow: hidden;
  padding: 20px 22px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, var(--chart-surface-start), var(--chart-surface-end)),
    radial-gradient(circle at top right, var(--chart-surface-glow), transparent 40%);
  box-shadow:
    0 18px 42px var(--shadow-color),
    inset 0 1px 0 var(--chart-highlight);
}

.report-kpi-card__label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.report-kpi-card__value {
  display: block;
  color: var(--ink);
  font-size: clamp(1.5rem, 2vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.report-kpi-card__meta {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.report-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.report-summary-card {
  position: relative;
  overflow: hidden;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, var(--chart-surface-start), var(--chart-surface-end)),
    radial-gradient(circle at top right, var(--chart-surface-glow), transparent 36%);
  box-shadow:
    0 14px 36px var(--shadow-color),
    inset 0 1px 0 var(--chart-highlight);
}

.report-summary-card__eyebrow {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.report-summary-card__title {
  margin: 10px 0 6px;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 700;
}

.report-summary-card__meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.report-summary-card__value {
  margin-top: 14px;
  color: var(--ink);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.report-summary-card__value span {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.report-empty-state {
  padding: 42px 24px;
  border: 1px dashed var(--border);
  border-radius: 24px;
  background: var(--surface);
  text-align: center;
}

.report-empty-state i {
  font-size: 2rem;
  color: var(--chart-axis-color);
}

.report-empty-state h5 {
  margin-top: 14px;
  color: var(--ink);
}

.report-empty-state p {
  margin: 8px auto 0;
  max-width: 520px;
  color: var(--muted);
}

@media (max-width: 767.98px) {
  .chart-host,
  .chart-host--sm,
  .chart-host--md,
  .chart-host--lg,
  .chart-host--xl {
    height: 240px;
    padding: 8px 4px 0;
  }

  .chart-stack {
    gap: 12px;
  }

  .report-panel {
    padding: 16px 16px 8px;
  }
}

@media (max-width: 1199.98px) {
  .report-kpi-grid,
  .report-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767.98px) {
  .report-kpi-grid,
  .report-summary-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}