.region-drilldown-v2 {
  --region-surface: var(--wa-surface);
  --region-border: rgba(15, 23, 42, 0.08);
  --region-ink: var(--wa-text);
  --region-muted: var(--wa-text-dim);
  --region-accent: var(--wa-info);
  --region-warn: var(--wa-bad);
}

.region-drilldown-v2 .card {
  border-color: var(--region-border);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}

.region-v2-hero {
  background:
    radial-gradient(circle at top right, var(--wa-info-wash), transparent 28%),
    linear-gradient(180deg, var(--wa-surface) 0%, var(--region-surface) 100%);
}

.region-v2-subnav {
  position: sticky;
  top: 0.75rem;
  z-index: 10;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.75rem;
  border: 1px solid var(--region-border);
  border-radius: 0.9rem;
  background: var(--wa-surface);
  backdrop-filter: blur(12px);
}

.region-v2-subnav-link {
  color: var(--region-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
}

.region-v2-subnav-link.active,
.region-v2-subnav-link:hover {
  color: var(--region-ink);
  background: var(--wa-info-wash);
}

.region-v2-section-head {
  margin-bottom: 0.75rem;
}

.region-kpi-card .card-body {
  padding: 1rem;
}

.metric-help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.08);
  color: var(--region-muted);
  font-size: 0.7rem;
  cursor: help;
}

.chart-shell {
  position: relative;
  min-height: 280px;
}

.chart-host {
  min-height: 280px;
}

.chart-host-lg {
  min-height: 360px;
}

.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--region-muted);
  font-size: 0.9rem;
  border: 1px dashed var(--wa-hairline);
  border-radius: 0.85rem;
  background: var(--wa-surface);
  padding: 1rem;
}

.table-scroll {
  max-height: 360px;
  overflow: auto;
}

.table-scroll .sticky-top {
  top: 0;
  z-index: 1;
}

.region-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.05);
  color: var(--region-ink);
  font-size: 0.82rem;
  font-weight: 600;
}

.region-pill.is-warning {
  background: var(--wa-bad-wash);
  color: var(--region-warn);
}

.region-pill.is-good {
  background: var(--wa-info-wash);
  color: var(--region-accent);
}

.region-risk-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.region-risk-badge.is-high,
.region-risk-badge.is-lost,
.region-risk-badge.is-churned {
  color: var(--wa-bad);
  background: var(--wa-bad-wash);
}

.region-risk-badge.is-medium,
.region-risk-badge.is-at-risk,
.region-risk-badge.is-warming {
  color: var(--region-warn);
  background: var(--wa-warn-wash);
}

.region-risk-badge.is-low,
.region-risk-badge.is-new,
.region-risk-badge.is-active {
  color: var(--region-accent);
  background: var(--wa-info-wash);
}

.region-metric-stack {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}

.region-metric-stack-end {
  align-items: flex-end;
}

.region-metric-sub {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.28rem;
  font-size: 0.72rem;
  color: var(--region-muted);
}

.region-status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.46rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
}

.region-status-pill.is-red {
  color: var(--wa-bad);
  background: var(--wa-bad-wash);
  border-color: var(--wa-bad-wash);
}

.region-status-pill.is-orange {
  color: var(--region-warn);
  background: var(--wa-warn-wash);
  border-color: var(--wa-bad-wash);
}

.region-status-pill.is-yellow {
  color: var(--wa-warn);
  background: var(--wa-warn-wash);
  border-color: var(--wa-warn-wash);
}

.region-status-pill.is-light-green {
  color: var(--wa-good);
  background: var(--wa-good-wash);
  border-color: var(--wa-good-wash);
}

.region-status-pill.is-green {
  color: var(--region-accent);
  background: var(--wa-info-wash);
  border-color: var(--wa-info-wash);
}

.region-status-pill.is-neutral {
  color: var(--wa-text);
  background: var(--wa-surface-2);
  border-color: var(--wa-hairline);
}

.insight-card.is-positive {
  border-top: 3px solid var(--region-accent);
}

.insight-card.is-warning {
  border-top: 3px solid var(--region-warn);
}

.insight-card.is-action {
  border-top: 3px solid var(--wa-info);
}

@media (max-width: 991.98px) {
  .region-v2-subnav {
    top: 0.5rem;
  }
}