/* ==========================================================================
   Charts Page Styles
   BoostAODE vs AODE Web App
   ========================================================================== */

/* --------------------------------------------------------------------------
   Chart Selector Grid
   -------------------------------------------------------------------------- */

.chart-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.chart-selector-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-xs);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
  user-select: none;
  text-align: center;
  min-height: 64px;
}

.chart-selector-btn:hover {
  background-color: var(--bg-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.chart-selector-btn.active {
  border-color: var(--accent-primary);
  background-color: var(--bg-selected);
  box-shadow: 0 0 0 1px var(--accent-primary), var(--shadow-glow);
}

.chart-selector-icon {
  font-size: var(--font-size-lg);
  line-height: 1;
  opacity: 0.8;
}

.chart-selector-btn.active .chart-selector-icon {
  opacity: 1;
}

.chart-selector-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.chart-selector-btn.active .chart-selector-label {
  color: var(--accent-primary);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Chart Container
   -------------------------------------------------------------------------- */

.chart-container {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  transition: background-color var(--transition-base),
              border-color var(--transition-base);
}

.chart-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.chart-canvas-wrapper {
  position: relative;
  width: 100%;
  height: 450px;
}

.chart-canvas-wrapper canvas {
  width: 100% !important;
  height: 100% !important;
}

/* For the HTML-based heatmap chart */
.chart-html-content {
  width: 100%;
  min-height: 200px;
  overflow-x: auto;
}

/* --------------------------------------------------------------------------
   Chart Controls
   -------------------------------------------------------------------------- */

.chart-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm) 0;
}

.chart-controls select {
  width: auto;
  min-width: 100px;
}

.chart-controls .form-group {
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-sm);
}

.chart-controls .form-label {
  white-space: nowrap;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Chart Description
   -------------------------------------------------------------------------- */

.chart-description {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-light);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Chart Download Button
   -------------------------------------------------------------------------- */

.chart-download {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
  z-index: 10;
}

.chart-download:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.chart-download svg {
  width: 14px;
  height: 14px;
}

/* --------------------------------------------------------------------------
   Heatmap Table
   -------------------------------------------------------------------------- */

.heatmap-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.heatmap-table th {
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.heatmap-table th:first-child {
  text-align: left;
}

.heatmap-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: background-color var(--transition-fast);
}

.heatmap-table td:first-child {
  text-align: left;
  font-family: var(--font-family);
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.heatmap-cell-significant {
  outline: 2px solid var(--text-primary);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.heatmap-table tbody tr:hover {
  background-color: var(--bg-hover);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 767px) {
  .chart-selector {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-canvas-wrapper {
    height: 300px;
  }

  .chart-container {
    padding: var(--spacing-md);
  }

  .chart-title {
    font-size: var(--font-size-lg);
  }

  .chart-controls {
    gap: var(--spacing-sm);
  }

  .chart-download {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }

  .heatmap-table th,
  .heatmap-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .chart-selector {
    grid-template-columns: repeat(3, 1fr);
  }

  .chart-canvas-wrapper {
    height: 380px;
  }
}

@media (min-width: 1025px) {
  .chart-selector {
    grid-template-columns: repeat(3, 1fr);
  }
}