/* --- CHARTS PAGE --- */
#charts-page > h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.charts-date-range-header {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-color-muted);
}

.charts-controls {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

.range-filter {
  display: flex;
  gap: 0.5rem;
  background-color: var(--card-color);
  padding: 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.range-filter .btn {
  padding: 0.5rem 1rem;
  text-transform: uppercase;
  font-size: 0.8rem;
}

#charts-prev-btn, #charts-next-btn {
  padding: 0.5rem;
  width: 40px;
  height: 40px;
}

#charts-next-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.range-filter .btn.active {
  background-color: var(--primary-color);
  color: var(--bg-color);
  border-color: var(--primary-color);
}

.charts-summary-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.stat-value {
  font-size: 1.75rem;
  font-weight: bold;
  color: var(--primary-color);
  font-family: 'Courier New', Courier, monospace;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-color-muted);
  text-transform: uppercase;
  margin-top: 0.5rem;
}

.charts-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.chart-card {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
    gap: 1rem;
}

.chart-header h4 {
    color: var(--primary-color);
    margin: 0;
    text-align: left;
    flex-grow: 1;
}

.chart-header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-expand-chart {
  background: none;
  border: none;
  color: var(--text-color-muted);
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chart-canvas-container {
    position: relative;
    height: 400px;
    width: 100%;
    flex-grow: 1;
}

.chart-type-switcher {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.btn-chart-type {
    background: transparent;
    border: none;
    color: var(--text-color-muted);
    padding: 0.25rem 0.75rem;
    cursor: pointer;
    font-size: 0.8rem;
}
.btn-chart-type:not(:last-child) {
    border-right: 1px solid var(--border-color);
}
.btn-chart-type.active {
    background-color: var(--primary-color);
    color: var(--bg-color);
}

@media (min-width: 1024px) {
    .charts-container {
        grid-template-columns: repeat(2, 1fr);
    }
}