.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  transition: all 0.2s ease;
}
.stat-card:hover { border-color: var(--border-light); }

.stat-card.featured {
  grid-column: 1 / -1;
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(6, 182, 212, 0.08));
}

.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.chart-tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  padding: 0.2rem;
}

.chart-tab {
  padding: 0.35rem 0.75rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.chart-tab.active {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}