.chart-container {
  background: #000;
  border-radius: 8px;
  margin-bottom: 0.5rem;
}
.chart-tooltip {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  pointer-events: none;
  z-index: 10;
  max-width: 250px;
  white-space: nowrap;
}
.tooltip-desc {
  font-weight: 500;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tooltip-amount.positive { color: #4caf50; }
.tooltip-amount.negative { color: #f44336; }
.tooltip-balance { color: var(--text-secondary); font-size: 0.75rem; }
.tooltip-time { color: var(--text-muted); font-size: 0.7rem; margin-top: 2px; }
.chart-legend {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.legend-item { display: flex; align-items: center; gap: 0.4rem; }
.legend-swatch {
  display: inline-block;
  width: 12px;
  height: 3px;
  border-radius: 1px;
}
.history-tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
}
.history-tab {
  padding: 0.6rem 1.2rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.history-tab:hover {
  color: var(--text-primary);
}
.history-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-green);
}
.tab-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.3rem;
}
.history-tab.active .tab-count {
  color: var(--text-secondary);
}