.backtest-results { margin-top: 28px; border-top: 1px solid #d9e2ec; padding-top: 12px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.metric-card { background: #f0f4f8; padding: 14px; border-radius: 8px; min-width: 0; }
.metric-card span { display: block; font-size: 13px; color: #52606d; }
.metric-card strong { display: block; font-size: 22px; margin-top: 5px; overflow-wrap: anywhere; }
.backtest-details { padding: 14px; border: 1px solid #d9e2ec; border-radius: 8px; font-size: 14px; }
.backtest-details summary { cursor: pointer; font-weight: bold; }
.chart-card { margin: 22px 0; min-width: 0; }
.chart-card h4 { margin: 0 0 10px; }
.chart-wrap { height: 320px; position: relative; min-width: 0; }
.backtest-results .hint { overflow-wrap: anywhere; }
@media (max-width: 600px) {
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .metric-card { padding: 10px; }
  .metric-card strong { font-size: 19px; }
  .chart-wrap { height: 340px; }
}