/* ============================================================================
   CSS Variables for Light/Dark Theme
   ============================================================================ */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --border-color: #e5e7eb;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --slider-track: #d1d5db;
  --slider-thumb: #3b82f6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #374151;
    --slider-track: #4b5563;
    --slider-thumb: #60a5fa;
  }
}

/* ============================================================================
   Main Layout
   ============================================================================ */

.main {
  width: 100%;
  height: 600px;
  overflow: hidden;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
}

/* ============================================================================
   Header (40px)
   ============================================================================ */

.header {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.header-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.template-select {
  font-size: 12px;
  padding: 4px 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}

.reset-button {
  font-size: 12px;
  padding: 4px 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}

.reset-button:hover {
  background: var(--bg-tertiary);
}

/* ============================================================================
   Parameters Section (140px)
   ============================================================================ */

.parameters-section {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin: 0 0 4px 0;
}

.slider-row {
  display: flex;
  align-items: center;
  height: 24px;
  gap: 8px;
}

.slider-label {
  width: 90px;
  font-size: 12px;
  color: var(--text-primary);
  flex-shrink: 0;
}

.slider-input {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--slider-track);
  border-radius: 2px;
  cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--slider-thumb);
  cursor: pointer;
}

.slider-input::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--slider-thumb);
  cursor: pointer;
  border: none;
}

.slider-value {
  width: 45px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: right;
  flex-shrink: 0;
}

/* ============================================================================
   Chart Section (230px)
   ============================================================================ */

.chart-section {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  flex: 2;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chart-container {
  flex: 1;
  position: relative;
  min-height: 0;
}

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

.chart-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  font-size: 11px;
  color: var(--text-secondary);
  padding-top: 4px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend-yours {
  color: var(--accent-blue);
}

.legend-template {
  color: var(--text-muted);
}

/* ============================================================================
   Metrics Section (remaining space ~150px)
   ============================================================================ */

.metrics-section {
  flex: 1;
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.metrics-comparison {
  display: flex;
  gap: 16px;
  flex: 1;
}

.metrics-column {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.metrics-column h3 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin: 0 0 4px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 6px;
  flex: 1;
  min-height: 0;
}

.metrics-column.template .metrics-grid {
  grid-template-columns: repeat(2, 1fr);
}

.metric-card {
  background: var(--bg-secondary);
  border-radius: 6px;
  padding: 4px 8px;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.metric-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.metric-card--positive .metric-value {
  color: var(--accent-green);
}

.metric-card--negative .metric-value {
  color: var(--accent-red);
}

.metric-label {
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.metrics-summary {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  flex-shrink: 0;
}

.summary-item {
  display: flex;
  gap: 4px;
}

.summary-value {
  font-weight: 600;
  color: var(--text-primary);
}

.summary-value.positive {
  color: var(--accent-green);
}

.summary-value.negative {
  color: var(--accent-red);
}

/* ============================================================================
   Loading State
   ============================================================================ */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-secondary);
  font-size: 14px;
}