.backtest-main {
  display: grid;
  gap: 16px;
}

.backtest-console,
.equity-panel,
.validation-panel,
.result-panel {
  border: 1px solid var(--line);
  background: var(--surface);
}

.backtest-console {
  border-top-color: rgba(39, 214, 230, 0.48);
}

.backtest-title {
  display: flex;
  min-height: 82px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line-soft);
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.backtest-title p,
.backtest-title h1 {
  margin: 0;
}

.backtest-title p {
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
}

.backtest-title h1 {
  margin-top: 7px;
  font-size: 22px;
  letter-spacing: 0;
}

.engine-badges {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.engine-badges span {
  padding: 5px 8px;
  border: 1px solid rgba(39, 214, 230, 0.24);
  border-radius: 3px;
  color: var(--cyan);
  background: rgba(39, 214, 230, 0.06);
  font-size: 10px;
  white-space: nowrap;
}

.engine-badges .engine-online {
  border-color: rgba(25, 230, 140, 0.42);
  color: var(--green);
  background: rgba(25, 230, 140, 0.07);
}

.engine-badges .engine-offline {
  border-color: rgba(255, 77, 109, 0.42);
  color: var(--red);
  background: rgba(255, 77, 109, 0.07);
}

.backtest-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(190px, 1.35fr)) repeat(7, minmax(112px, 0.75fr)) auto;
  gap: 1px;
  background: var(--line-soft);
}

.backtest-form label {
  display: grid;
  min-height: 76px;
  padding: 11px 12px;
  background: var(--surface);
  align-content: center;
  gap: 7px;
}

.backtest-form label > span {
  color: var(--muted);
  font-size: 10px;
}

.backtest-form input,
.backtest-form select {
  width: 100%;
  min-width: 0;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  outline: 0;
  color: var(--text);
  background: #091017;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

.backtest-form input:focus,
.backtest-form select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(39, 214, 230, 0.08);
}

.run-backtest {
  min-width: 116px;
  border: 0;
  color: #061013;
  background: var(--cyan);
  cursor: pointer;
  font-weight: 800;
}

.run-backtest:hover {
  background: #65e6f0;
}

.run-backtest:disabled {
  color: var(--muted);
  background: #18252e;
  cursor: wait;
}

.run-message {
  min-height: 34px;
  padding: 9px 12px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 11px;
}

.run-message.success {
  color: var(--green);
}

.run-message.error {
  color: var(--red);
}

.data-audit-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.data-audit-strip div {
  min-height: 58px;
  padding: 11px 16px;
  border-right: 1px solid var(--line-soft);
}

.data-audit-strip div:last-child {
  border-right: 0;
}

.data-audit-strip span,
.data-audit-strip strong {
  display: block;
}

.data-audit-strip span {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 10px;
}

.data-audit-strip strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

.backtest-metrics {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border: 1px solid var(--line);
  background: var(--surface);
}

.backtest-metrics article {
  min-width: 0;
  min-height: 88px;
  padding: 16px;
  border-right: 1px solid var(--line-soft);
}

.backtest-metrics article:last-child {
  border-right: 0;
}

.backtest-metrics span,
.backtest-metrics strong {
  display: block;
}

.backtest-metrics span {
  margin-bottom: 13px;
  color: var(--muted);
  font-size: 10px;
}

.backtest-metrics strong {
  overflow: hidden;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 21px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.backtest-metrics strong.positive {
  color: var(--green);
}

.backtest-metrics strong.negative {
  color: var(--red);
}

.backtest-metrics strong.warning {
  color: var(--amber);
}

.backtest-visual-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
}

.section-heading {
  min-height: 64px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line-soft);
  justify-content: space-between;
}

.section-heading p,
.section-heading h2 {
  margin: 0;
}

.section-heading h2 {
  margin-top: 5px;
  font-size: 15px;
}

.section-heading > span {
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
}

.equity-chart {
  height: 360px;
}

.audit-list {
  margin: 0;
}

.audit-list div {
  display: flex;
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line-soft);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.audit-list dt {
  color: var(--muted);
  font-size: 10px;
}

.audit-list dd {
  margin: 0;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
  text-align: right;
}

.audit-warning {
  margin: 12px;
  padding: 10px 12px;
  border-left: 2px solid var(--amber);
  color: var(--amber);
  background: rgba(244, 185, 66, 0.07);
  font-size: 10px;
  line-height: 1.6;
}

.result-table-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(400px, 0.9fr);
  gap: 16px;
}

.table-scroll {
  overflow: auto;
}

.result-panel table {
  width: 100%;
  border-collapse: collapse;
}

.result-panel th,
.result-panel td {
  height: 42px;
  padding: 0 13px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  font-size: 10px;
  white-space: nowrap;
}

.result-panel th {
  color: var(--muted);
  font-weight: 500;
}

.result-panel td {
  font-family: "SFMono-Regular", Consolas, monospace;
}

.result-panel tbody tr:last-child td {
  border-bottom: 0;
}

.monthly-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  min-height: 126px;
}

.month-cell {
  min-height: 63px;
  padding: 11px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.month-cell span,
.month-cell strong {
  display: block;
}

.month-cell span {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 9px;
}

.month-cell strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.month-cell.positive {
  background: rgba(25, 230, 140, 0.05);
}

.month-cell.positive strong {
  color: var(--green);
}

.month-cell.negative {
  background: rgba(255, 77, 109, 0.05);
}

.month-cell.negative strong {
  color: var(--red);
}

.empty-result {
  display: grid;
  min-height: 126px;
  color: var(--muted);
  font-size: 11px;
  place-items: center;
}

.trade-table-scroll {
  max-height: 430px;
}

.trade-log-panel thead {
  position: sticky;
  z-index: 2;
  top: 0;
  background: var(--surface);
}

.direction-long {
  color: var(--green);
}

.direction-short {
  color: var(--red);
}

.recent-runs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.recent-run {
  min-height: 92px;
  padding: 14px;
  border: 0;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.recent-run:hover {
  background: var(--surface-2);
}

.recent-run strong,
.recent-run span {
  display: block;
}

.recent-run strong {
  margin-bottom: 8px;
  overflow: hidden;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-run span {
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  line-height: 1.6;
}

@media (max-width: 1320px) {
  .backtest-form {
    grid-template-columns: repeat(4, minmax(140px, 1fr));
  }

  .run-backtest {
    min-height: 54px;
    grid-column: span 4;
  }

  .backtest-metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .backtest-metrics article:nth-child(4) {
    border-right: 0;
  }

  .backtest-metrics article:nth-child(-n + 4) {
    border-bottom: 1px solid var(--line-soft);
  }
}

@media (max-width: 900px) {
  .backtest-title,
  .backtest-visual-grid,
  .result-table-grid {
    grid-template-columns: 1fr;
  }

  .backtest-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .engine-badges {
    justify-content: flex-start;
  }

  .data-audit-strip {
    grid-template-columns: 1fr 1fr;
  }

  .data-audit-strip div:nth-child(2) {
    border-right: 0;
  }

  .data-audit-strip div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line-soft);
  }

  .backtest-visual-grid {
    display: grid;
  }

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

@media (max-width: 620px) {
  .backtest-main {
    padding: 12px;
  }

  .backtest-form {
    grid-template-columns: 1fr 1fr;
  }

  .strategy-field {
    grid-column: 1 / -1;
  }

  .engine-field {
    grid-column: 1 / -1;
  }

  .run-backtest {
    grid-column: 1 / -1;
  }

  .backtest-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .backtest-metrics article,
  .backtest-metrics article:nth-child(4) {
    border-right: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
  }

  .backtest-metrics article:nth-child(even) {
    border-right: 0;
  }

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

  .recent-runs {
    grid-template-columns: 1fr;
  }
}