.container {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
  display: block;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2rem;
}

.header-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin: 0;
}

/* Balance card in header */
.page-header .stat-card {
  min-width: 200px;
  max-width: 250px;
  flex-shrink: 0;
}

/* Charts Grid Layout */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Chart Controls */
.chart-limit-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.chart-limit-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chart-limit-select:hover {
  border-color: var(--accent-primary);
}

.chart-limit-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .page-header .stat-card {
    max-width: 100%;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 1rem;
  }
}