/* ============================================
   performance.css — Performance Dashboard
   ============================================ */

.perf-section {
  max-width: 960px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 24px) 24px 48px;
  animation: fadeIn 0.3s ease;
}

/* Header */
.perf-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-primary);
}

.perf-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.perf-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Stats row */
.perf-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.perf-stat-card {
  flex: 1;
  min-width: 130px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

.perf-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-blue);
  font-family: var(--font-mono);
}

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

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

.perf-stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Equity curve */
.perf-equity-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}

.perf-equity-card h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.perf-equity-svg {
  width: 100%;
  height: 200px;
  display: block;
}

/* Breakdown card */
.perf-breakdown-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}

.perf-breakdown-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.perf-breakdown-tab {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.perf-breakdown-tab:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.perf-breakdown-tab.active {
  background: rgba(88, 166, 255, 0.1);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* Breakdown table */
.perf-breakdown-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.perf-breakdown-table th {
  text-align: left;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-primary);
}

.perf-breakdown-table td {
  padding: 10px 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-secondary);
}

.perf-breakdown-table tr:hover td {
  background: var(--bg-tertiary);
}

.perf-breakdown-table .perf-positive {
  color: var(--accent-green);
}

.perf-breakdown-table .perf-negative {
  color: var(--accent-red);
}

/* Empty state */
.perf-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 80px 20px;
  color: var(--text-muted);
  text-align: center;
}

.perf-empty-state svg {
  opacity: 0.4;
}

.perf-empty-state p {
  font-size: 0.95rem;
  max-width: 400px;
}

/* Responsive */
@media (max-width: 768px) {
  .perf-section {
    padding: calc(var(--header-height) + 16px) 16px 32px;
  }

  .perf-stat-card {
    min-width: calc(50% - 6px);
  }

  .perf-breakdown-table {
    font-size: 0.8rem;
  }

  .perf-breakdown-table th,
  .perf-breakdown-table td {
    padding: 8px 8px;
  }
}

@media (max-width: 480px) {
  .perf-stat-card {
    min-width: 100%;
  }

  .perf-equity-svg {
    height: 150px;
  }
}