/* ============================================================
   CCW Portal — Charts & Analytics
   ============================================================ */

/* ── Chart Card ───────────────────────────────────────────── */
.ccw-chart-card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.ccw-chart-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.ccw-chart-card__title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.ccw-chart-card__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

.ccw-chart-card__controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.ccw-chart-card__body {
  padding: var(--space-5);
}

/* ── Chart Container ──────────────────────────────────────── */
.ccw-chart-container {
  position: relative;
  width: 100%;
}

.ccw-chart-container--sm {
  height: 200px;
}

.ccw-chart-container--md {
  height: 280px;
}

.ccw-chart-container--lg {
  height: 360px;
}

.ccw-chart-container canvas {
  display: block;
  width: 100% !important;
}

/* ── Chart Grid ───────────────────────────────────────────── */
.ccw-chart-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.ccw-chart-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.ccw-chart-grid--wide {
  grid-template-columns: 2fr 1fr;
}

/* ── Period Selector ──────────────────────────────────────── */
.ccw-period-selector {
  display: flex;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2px;
  gap: 2px;
}

.ccw-period-selector__btn {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: calc(var(--radius-md) - 2px);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.ccw-period-selector__btn:hover {
  color: var(--color-text-primary);
}

.ccw-period-selector__btn--active {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-xs);
}

/* ── Legend ───────────────────────────────────────────────── */
.ccw-chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.ccw-chart-legend__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.ccw-chart-legend__swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── Summary row below chart ──────────────────────────────── */
.ccw-chart-summary {
  display: flex;
  gap: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.ccw-chart-summary__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.ccw-chart-summary__label {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ccw-chart-summary__value {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1;
}

.ccw-chart-summary__sub {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* ── Donut centre label ───────────────────────────────────── */
.ccw-donut-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ccw-donut-label {
  position: absolute;
  text-align: center;
  pointer-events: none;
}

.ccw-donut-label__value {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  display: block;
}

.ccw-donut-label__sub {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* ── Empty chart state ────────────────────────────────────── */
.ccw-chart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  gap: var(--space-3);
  color: var(--color-text-tertiary);
}

.ccw-chart-empty__icon {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.ccw-chart-empty__text {
  font-size: var(--text-sm);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .ccw-chart-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .ccw-chart-grid--wide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .ccw-chart-grid,
  .ccw-chart-grid--3 {
    grid-template-columns: 1fr;
  }

  .ccw-chart-card__header {
    flex-wrap: wrap;
  }
}