/* ═══════════════════════════════════════════════════════
   Trader's Lab — Charts Terminal
   ═══════════════════════════════════════════════════════ */

/* ── Top Navigation ── */
.topbar {
  background: var(--color-surface-raised);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-4);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.brand {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-brand);
}

.asset-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

#headerSymbol {
  font-size: var(--text-3xl);
  font-weight: 700;
}

#headerPrice {
  font-size: var(--text-2xl);
  font-weight: 500;
  font-family: var(--font-mono);
}

#headerChange {
  font-size: var(--text-base);
  font-family: var(--font-mono);
}

.controls {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

/* ── Layout Grid ── */
.main-layout {
  display: flex;
  flex: 1;
  height: calc(100vh - 60px);
}

/* ── Watchlist Left Panel ── */
.sidebar {
  width: 300px;
  background: var(--color-surface-raised);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar.right {
  border-right: none;
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
}

.panel-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-brand);
}

/* ── Chart Center ── */
.chart-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

#tvchart {
  flex: 1;
  width: 100%;
}

/* ── Indicator Overlay ── */
.indicator-menu { position: relative; }

.indicator-btn {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.indicator-btn:hover { border-color: var(--color-border-hover); }

.indicator-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface-overlay);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  margin-top: var(--space-1);
  z-index: 10;
  width: 200px;
  box-shadow: var(--shadow-md);
}

.indicator-dropdown.show { display: block; }

.ind-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease-out);
}

.ind-option:hover { background: var(--color-surface-hover); }

.volume-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  cursor: pointer;
  background: var(--color-surface-raised);
  user-select: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.volume-toggle:hover { color: var(--color-text-primary); }

/* ── Signal Panel ── */
.signal-menu { position: relative; }

.signal-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface-overlay);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px;
  margin-top: var(--space-1);
  z-index: 10;
  width: 340px;
  box-shadow: var(--shadow-md);
  max-height: 500px;
  overflow-y: auto;
}

.signal-panel.show { display: block; }

.signal-cond {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  margin-bottom: 6px;
}

.signal-cond-row {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-1);
  flex-wrap: wrap;
}

.signal-cond-row select,
.signal-cond-row input {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  padding: 3px 6px;
  font-size: var(--text-xs);
  outline: none;
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.signal-cond-row select:focus,
.signal-cond-row input:focus { border-color: var(--color-accent); }

.signal-cond-row .s-remove {
  color: var(--color-down);
  cursor: pointer;
  font-size: var(--text-lg);
  padding: 0 var(--space-1);
}

.signal-cond-row .s-remove:hover { opacity: 0.8; }

.signal-add-btn {
  width: 100%;
  background: transparent;
  border: 1px dashed var(--color-border);
  color: var(--color-accent);
  padding: 5px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-xs);
  margin-bottom: 6px;
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.signal-add-btn:hover { border-color: var(--color-accent); }

.signal-logic-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.signal-logic-row select {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  padding: 3px 6px;
  font-size: var(--text-xs);
  outline: none;
  font-family: var(--font-sans);
}

.signal-run-btn {
  width: 100%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-sans);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.signal-run-btn:hover { opacity: 0.9; }
.signal-run-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.signal-result {
  margin-top: 6px;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.signal-result .s-summary { display: flex; gap: var(--space-3); }
.signal-result .s-buy  { color: var(--color-up); }
.signal-result .s-sell { color: var(--color-down); }

.signal-error { color: var(--color-down); font-size: var(--text-xs); }

/* ── Pair dropdown ── */
.pair-select-wrap { padding: var(--space-3) var(--space-4); }

.pair-select {
  width: 100%;
  background: var(--color-surface-base);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 9px 10px;
  font-size: var(--text-lg);
  cursor: pointer;
  outline: none;
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.pair-select:hover,
.pair-select:focus { border-color: var(--color-accent); }

.pair-info-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.w-sym {
  font-family: var(--font-mono);
  font-weight: 600;
}

.w-price {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
}

/* ── Research Feed ── */
.research-feed {
  padding: var(--space-3);
  overflow-y: auto;
  flex: 1;
}

.research-card {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
}

.r-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.r-badge {
  font-size: var(--text-xs);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.r-badge.bullish {
  background: oklch(0.62 0.14 155 / 0.2);
  color: var(--color-up);
}

.r-badge.bearish {
  background: oklch(0.55 0.18 25 / 0.2);
  color: var(--color-down);
}

.r-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.r-desc {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* ── Paper Trading ── */
.trade-panel { padding: var(--space-2) var(--space-3); }

.trade-form {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
}

.trade-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.trade-row input,
.trade-row select {
  background: var(--color-surface-raised);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px;
  font-size: var(--text-sm);
  outline: none;
  font-family: var(--font-mono);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.trade-row input:focus,
.trade-row select:focus { border-color: var(--color-accent); }

.trade-row input { flex: 1; }
.trade-row select { flex: 0 0 80px; }

.trade-btn {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: var(--text-sm);
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-sans);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.trade-btn:hover { opacity: 0.85; }

.trade-price-label {
  font-size: 10px;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* ── Positions ── */
.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.pos-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 8px;
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
}

.pos-item .pos-pnl { font-weight: 600; font-family: var(--font-mono); }

.close-btn {
  background: var(--color-down);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-size: 10px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.close-btn:hover { opacity: 0.8; }

/* ── Order History ── */
.order-item {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
  font-size: 10px;
  border-bottom: 1px solid var(--color-border);
}

.order-item:last-child { border-bottom: none; }

.order-item .o-side { font-weight: 600; font-family: var(--font-mono); }
.order-item .o-side.long  { color: var(--color-up); }
.order-item .o-side.short { color: var(--color-down); }

.order-item .o-status {
  font-size: 9px;
  padding: 1px 4px;
  border-radius: var(--radius-sm);
}

.order-item .o-status.filled {
  background: oklch(0.62 0.14 155 / 0.15);
  color: var(--color-up);
}

.order-item .o-status.pending {
  background: oklch(0.75 0.15 75 / 0.15);
  color: var(--color-warning);
}

.order-item .o-status.cancelled {
  background: oklch(0.55 0.18 25 / 0.15);
  color: var(--color-down);
}

/* ── Strategy Results ── */
.strat-feed {
  padding: var(--space-2) var(--space-3);
  max-height: 300px;
  overflow-y: auto;
}

.strat-item {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  margin-bottom: 6px;
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
  font-size: var(--text-xs);
}

.strat-item:hover { border-color: var(--color-accent); }

.strat-item.active {
  border-color: var(--color-up);
  background: oklch(0.62 0.14 155 / 0.08);
}

.strat-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-1);
}

.strat-name { font-weight: 600; font-size: var(--text-sm); }

.strat-sharpe {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.strat-sharpe.good {
  background: oklch(0.62 0.14 155 / 0.15);
  color: var(--color-up);
}

.strat-sharpe.ok {
  background: oklch(0.75 0.15 75 / 0.15);
  color: var(--color-warning);
}

.strat-sharpe.bad {
  background: oklch(0.55 0.18 25 / 0.15);
  color: var(--color-down);
}

.strat-metrics {
  display: flex;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: 10px;
  flex-wrap: wrap;
}

.strat-params {
  font-size: 9px;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
  opacity: 0.7;
}

.strat-loading {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  padding: var(--space-3);
}

.strat-apply-btn {
  float: right;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  cursor: pointer;
  font-size: 9px;
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.strat-apply-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

.strat-oos {
  font-size: 9px;
  color: var(--color-text-secondary);
  background: oklch(0.83 0.012 265 / 0.05);
  border-radius: var(--radius-sm);
  padding: 1px 4px;
}

/* ── Backtest Results ── */
.bt-panel {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.bt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-1);
}

.bt-tile {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px;
  text-align: center;
}

.bt-tile-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  font-family: var(--font-mono);
}

.bt-tile-label {
  font-size: 9px;
  color: var(--color-text-secondary);
}

.bt-summary-row {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-1);
  font-size: 10px;
}

.bt-meta {
  margin-top: var(--space-1);
  font-size: 9px;
  color: var(--color-text-secondary);
}

/* ── Back button ── */
.back-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  margin-right: var(--space-3);
  transition: color var(--duration-fast) var(--ease-out);
}

.back-link:hover { color: var(--color-text-primary); }

/* ── Detailed trade list ── */
.bt-trade-section {
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  padding-top: 6px;
}

.bt-trade-header {
  cursor: pointer;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.bt-trade-header:hover { color: var(--color-text-primary); }

.bt-trade-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
}

.bt-trade-table th {
  text-align: left;
  padding: 4px 6px;
  color: var(--color-text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

.bt-trade-table td {
  padding: 5px 6px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.bt-trade-table tr:last-child td { border-bottom: none; }
.bt-trade-table tbody tr { cursor: pointer; }
.bt-trade-table tbody tr:hover { background: var(--color-surface-hover); }

.bt-trade-detail {
  background: oklch(0.83 0.012 265 / 0.03);
}

.bt-trade-detail td {
  font-size: 9px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.bt-formula-note {
  margin-top: var(--space-1);
  font-size: 9px;
  color: var(--color-text-secondary);
  padding: var(--space-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  line-height: 1.5;
}

/* ── Utility classes ── */

/* Panel header with action button */
.panel-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Small action button */
.btn-sm {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  cursor: pointer;
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  font-weight: 600;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.btn-sm:hover { opacity: 0.85; }

/* Outline small button */
.btn-outline-sm {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  cursor: pointer;
  font-size: 10px;
  font-family: var(--font-sans);
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.btn-outline-sm:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Muted text small */
.text-muted-sm {
  font-size: 10px;
  color: var(--color-text-secondary);
}

/* Equity label */
.equity-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}

/* Small empty state */
.empty-state-sm {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  padding: var(--space-2);
}

/* -------------------------------------------------------
   Chart Bottom Panel � trades at bottom when strategies active
   ------------------------------------------------------- */
.chart-area {
  display: flex;
  flex-direction: column;
  flex: 1;        /* grow to fill .main-layout width between the two fixed sidebars */
  min-width: 0;   /* prevent intrinsic content width from re-collapsing flex:1 */
  min-height: 0;
}

.chart-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

#tvchart {
  flex: 1;
  width: 100%;
  min-height: 0;
}

.chart-bottom {
  flex-shrink: 0;
  background: var(--color-surface-raised);
  border-top: 1px solid var(--color-border);
  display: none;
  flex-direction: column;
  max-height: 35vh;
  overflow: hidden;
}

.chart-bottom.visible {
  display: flex;
}

.chart-bottom-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Tabs inside the chart bottom panel */
.bottom-tabs {
  display: flex;
  gap: var(--space-1);
}

.bottom-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-sans);
}

.bottom-tab:hover {
  color: var(--color-text-primary);
}

.bottom-tab.active {
  color: var(--color-text-primary);
  background: var(--color-surface-base);
  border-color: var(--color-border);
}

/* Backtest trades pane — fills the bottom panel width */
.bt-trade-section-bottom {
  flex: 1;
  min-width: 0;
}

.chart-bottom-body {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.trade-form-inline {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
  padding: var(--space-2);
  background: var(--color-surface-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.trade-form-inline input {
  background: var(--color-surface-raised);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: var(--text-sm);
  width: 70px;
  outline: none;
  font-family: var(--font-mono);
}

.trade-form-inline select {
  background: var(--color-surface-raised);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: var(--text-sm);
  outline: none;
  font-family: var(--font-sans);
}

.trade-form-inline .trade-btn {
  flex-shrink: 0;
}

.trade-price-label-bottom {
  font-size: 10px;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.chart-bottom-panels {
  display: flex;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.bottom-panel {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
}

.bottom-panel .section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

/* -- Sidebar scroll -- */
.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.sidebar-scroll::-webkit-scrollbar {
  width: 4px;
}

.sidebar-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-scroll::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

/* -- Responsive -- */
@media (max-width: 900px) {
  .main-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    max-height: 40vh;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .sidebar.right {
    border-left: none;
    border-top: 1px solid var(--color-border);
    max-height: 50vh;
  }
  .chart-bottom-body {
    flex-direction: column;
  }
  .chart-bottom-panels {
    flex-direction: column;
  }
}