:root {
    --bg-primary: #050608;
    --bg-secondary: #0a0c10;
    --bg-panel: #0d1117;
    --bg-card: #111620;
    --bg-hover: #161c28;
    --border: #1e2a3a;
    --border-bright: #2a3a52;
    --text-primary: #e2e8f0;
    --text-secondary: #7a8fa8;
    --text-muted: #6a82a3;
    --accent-green: #00ff88;
    --accent-green-dim: #00cc6a;
    --accent-red: #ff3355;
    --accent-red-dim: #cc2244;
    --accent-blue: #0088ff;
    --accent-blue-dim: #0066cc;
    --accent-amber: #ffaa00;
    --accent-cyan: #00ddff;
    --accent-purple: #aa55ff;
    --signal-buy: #00ff88;
    --signal-sell: #ff3355;
    --signal-hold: #ffaa00;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    font-family: 'IBM Plex Mono', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 12px;
  }

  /* Scanline overlay */
  body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.03) 2px,
      rgba(0,0,0,0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
  }

  /* TOP BAR */
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 44px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .topbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .logo-mark {
    width: 28px;
    height: 28px;
    background: var(--accent-green);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-logo 3s ease-in-out infinite;
  }

  @keyframes pulse-logo {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
  }

  .logo-text {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--accent-green);
  }

  .logo-sub {
    font-size: 9px;
    color: var(--text-muted);
    letter-spacing: 2px;
  }

  .topbar-ticker-tape {
    display: flex;
    gap: 24px;
    overflow: hidden;
  }

  .ticker-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
  }

  .ticker-sym {
    font-size: 9px;
    color: var(--text-muted);
    letter-spacing: 1px;
  }

  .ticker-price {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
  }

  .ticker-chg.up { color: var(--accent-green); }
  .ticker-chg.down { color: var(--accent-red); }
  .ticker-chg { font-size: 9px; }

  .topbar-status {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .status-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 9px;
    letter-spacing: 1px;
    color: var(--text-secondary);
  }

  .status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: blink 1.5s ease-in-out infinite;
  }

  .status-dot.inactive { background: var(--text-muted); animation: none; }

  @keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
  }

  .clock {
    font-size: 11px;
    color: var(--accent-cyan);
    font-weight: 500;
    min-width: 80px;
    text-align: right;
  }

  /* MAIN LAYOUT */
  .layout {
    display: flex;
    height: calc(100vh - 44px - 38px - 28px); /* topbar + apex-nav + disclaimer */
  }

  #leftPanel {
    width: 280px;
    min-width: 180px;
    max-width: 500px;
    flex-shrink: 0;
  }

  #rightPanel {
    width: 300px;
    min-width: 180px;
    flex-shrink: 0;
  }

  .panel-resizer {
    width: 5px;
    background: var(--border);
    cursor: col-resize;
    flex-shrink: 0;
    transition: background 0.15s;
    position: relative;
  }

  .panel-resizer:hover,
  .panel-resizer.dragging {
    background: var(--accent-blue);
  }

  .panel-resizer::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 32px;
    background: var(--accent-blue);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.15s;
  }

  .panel-resizer:hover::after {
    opacity: 0.6;
  }

  /* PANELS */
  .panel {
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-bright) transparent;
  }

  .panel:last-child { border-right: none; border-left: 1px solid var(--border); }

  .panel-header {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    background: var(--bg-panel);
    z-index: 10;
  }

  .panel-title {
    font-size: 9px;
    letter-spacing: 3px;
    color: var(--text-muted);
    font-weight: 600;
  }

  .panel-badge {
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 2px;
    background: var(--bg-card);
    color: var(--accent-amber);
    border: 1px solid var(--border);
    letter-spacing: 1px;
  }

  /* CENTER PANEL */
  .center-panel {
    flex: 1;
    min-width: 0;
    background: var(--bg-secondary);
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  /* let grouped inputs share available width rather than use fixed px */
  .input-group input[type="number"] {
    flex: 1;
    min-width: 0;
    width: auto;
  }

  /* SECTION LABELS */
  .section {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
  }

  .section-label {
    font-size: 8px;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  /* FORM CONTROLS */
  .control-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    gap: 8px;
  }

  .control-label {
    font-size: 10px;
    color: var(--text-secondary);
    white-space: nowrap;
    min-width: 100px;
  }

  .control-label span {
    color: var(--text-muted);
    font-size: 9px;
  }

  input[type="number"], input[type="text"], select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    padding: 5px 8px;
    width: 100%;
    outline: none;
    transition: border-color 0.15s;
    border-radius: 2px;
  }

  input[type="number"]:focus,
  input[type="text"]:focus,
  select:focus {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
  }

  select option {
    background: var(--bg-card);
  }

  .input-group {
    display: flex;
    gap: 4px;
    align-items: center;
  }

  .input-suffix {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
  }

  /* RANGE SLIDERS */
  input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 3px;
    background: var(--border);
    outline: none;
    border-radius: 2px;
    cursor: pointer;
  }

  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-blue);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-panel);
  }

  .range-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
  }

  .range-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .range-value {
    font-size: 11px;
    color: var(--accent-cyan);
    font-weight: 600;
    min-width: 40px;
    text-align: right;
  }

  /* Editable numeric readout paired with a range slider (e.g. Target Gain/Stop Loss) */
  .pct-input-group {
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
  }

  .pct-input {
    font: inherit;
    font-weight: inherit;
    color: inherit;
    background: transparent;
    border: none;
    border-bottom: 1px solid transparent;
    text-align: right;
    padding: 0;
    width: 4.2em;
    -moz-appearance: textfield;
  }

  .pct-input:focus {
    outline: none;
    border-bottom-color: currentColor;
  }

  .pct-input::-webkit-outer-spin-button,
  .pct-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }

  /* TOGGLES */
  .toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
  }

  .toggle-label {
    font-size: 10px;
    color: var(--text-secondary);
  }

  .toggle {
    position: relative;
    width: 32px;
    height: 16px;
    cursor: pointer;
  }

  .toggle input { display: none; }

  .toggle-track {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: 8px;
    transition: background 0.2s;
  }

  .toggle-thumb {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--text-muted);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s, background 0.2s;
  }

  .toggle input:checked ~ .toggle-track { background: var(--accent-green); opacity: 0.3; }
  .toggle input:checked ~ .toggle-thumb { transform: translateX(16px); background: var(--accent-green); }

  /* CHART AREA */
  .chart-area {
    flex: 1;
    position: relative;
    overflow: hidden;
  }

  #tvChart {
    width: 100%;
    height: 100%;
  }

  #tvChart iframe {
    display: block !important;
  }

  .chart-empty-state {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .chart-overlay {
    position: absolute;
    top: 12px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    pointer-events: none;
  }

  .chart-asset-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
  }

  .chart-price-display {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-green);
    font-variant-numeric: tabular-nums;
  }

  .chart-price-display.down { color: var(--accent-red); }

  .chart-change {
    font-size: 11px;
    color: var(--text-secondary);
  }

  .chart-controls {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 4px;
  }

  .chart-btn {
    padding: 4px 8px;
    font-size: 9px;
    font-family: 'IBM Plex Mono', monospace;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.15s;
    border-radius: 2px;
  }

  .chart-btn:hover, .chart-btn.active {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(0,136,255,0.05);
  }

  .val-green { color: var(--accent-green); }
  .val-red { color: var(--accent-red); }
  .val-amber { color: var(--accent-amber); }
  .val-cyan { color: var(--accent-cyan); }
  .val-purple { color: var(--accent-purple); }

  /* SIGNAL ALERTS */
  .alert-list {
    padding: 8px;
  }

  .alert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 3px;
    margin-bottom: 8px;
    overflow: hidden;
    animation: slideIn 0.3s ease;
    transition: border-color 0.2s;
  }

  @keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
  }

  .alert-card.buy { border-left: 3px solid var(--signal-buy); }
  .alert-card.sell { border-left: 3px solid var(--signal-sell); }

  .alert-card-header {
    padding: 8px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
  }

  .alert-type {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
  }

  .alert-type.buy { color: var(--signal-buy); }
  .alert-type.sell { color: var(--signal-sell); }

  .alert-asset {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 600;
  }

  .alert-time {
    font-size: 9px;
    color: var(--text-muted);
  }

  .alert-body {
    padding: 8px 10px;
  }

  .alert-price-row {
    display: flex;
    gap: 16px;
    margin-bottom: 6px;
  }

  .alert-price-item {
    display: flex;
    flex-direction: column;
    gap: 1px;
  }

  .alert-price-key {
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 1px;
  }

  .alert-price-val {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
  }

  .alert-price-val.green { color: var(--accent-green); }
  .alert-price-val.red { color: var(--accent-red); }

  .alert-reasons {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
  }

  .reason-tag {
    font-size: 8px;
    padding: 2px 5px;
    border-radius: 2px;
    background: rgba(0,136,255,0.1);
    border: 1px solid rgba(0,136,255,0.3);
    color: var(--accent-blue);
    letter-spacing: 0.5px;
  }

  .alert-confidence {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
  }

  .confidence-label {
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 1px;
    min-width: 70px;
  }

  .confidence-bar {
    flex: 1;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
  }

  .confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    transition: width 0.5s ease;
    border-radius: 2px;
  }

  .confidence-pct {
    font-size: 10px;
    color: var(--accent-green);
    font-weight: 600;
    min-width: 28px;
    text-align: right;
  }

  .alert-actions {
    display: flex;
    gap: 6px;
  }

  .btn-execute {
    flex: 1;
    padding: 6px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
    border: none;
  }

  .btn-buy {
    background: rgba(0,255,136,0.15);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
  }

  .btn-buy:hover {
    background: rgba(0,255,136,0.25);
    box-shadow: 0 0 12px rgba(0,255,136,0.2);
  }

  .btn-sell-exec {
    background: rgba(255,51,85,0.15);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
  }

  .btn-sell-exec:hover {
    background: rgba(255,51,85,0.25);
  }

  .btn-skip {
    padding: 6px 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
    letter-spacing: 1px;
  }

  .btn-skip:hover {
    border-color: var(--text-secondary);
    color: var(--text-secondary);
  }

  /* POSITIONS TABLE */
  .positions-section {
    padding: 0;
  }

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

  .positions-table th {
    padding: 6px 10px;
    text-align: left;
    font-size: 8px;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    font-weight: 500;
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
  }

  .positions-table td {
    padding: 7px 10px;
    border-bottom: 1px solid var(--border);
    font-variant-numeric: tabular-nums;
  }

  .positions-table tr:hover td {
    background: var(--bg-hover);
  }

  .pos-pnl.pos { color: var(--accent-green); }
  .pos-pnl.neg { color: var(--accent-red); }

  /* WATCHLIST */
  .wl-section { position: relative; border-bottom: 1px solid var(--border); }

  .wl-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px 8px 16px;
    cursor: pointer;
    user-select: none;
    transition: background 0.12s;
  }
  .wl-trigger:hover { background: var(--bg-hover); }

  .wl-trigger-label { font-size: 8px; letter-spacing: 2px; color: var(--text-muted); }
  .wl-trigger-current { font-size: 10px; font-weight: 700; color: var(--text-primary); letter-spacing: 1px; }
  .wl-trigger-count {
    font-size: 8px; color: var(--accent-blue); letter-spacing: 1px;
    padding: 1px 6px; border: 1px solid rgba(0,136,255,.3); border-radius: 2px;
  }

  .wl-chev {
    width: 13px; height: 13px; color: var(--text-muted);
    transition: transform 0.2s; flex-shrink: 0;
  }
  .wl-chev.open { transform: rotate(180deg); }

  .wl-dropdown {
    position: absolute;
    top: 100%; left: 0; right: 0;
    z-index: 200;
    background: var(--bg-panel);
    border: 1px solid var(--border-bright);
    border-top: 2px solid var(--accent-blue);
    box-shadow: 0 12px 32px rgba(0,0,0,0.5);
    max-height: 340px;
    display: flex;
    flex-direction: column;
  }

  .wl-dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 10px 7px 14px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
  }
  .wl-dropdown-info { font-size: 8px; color: var(--text-muted); letter-spacing: 1px; }

  .wl-done-btn {
    padding: 3px 11px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px; font-weight: 700; letter-spacing: 1px;
    background: rgba(0,200,122,.1); color: var(--accent-green);
    border: 1px solid var(--accent-green); border-radius: 2px;
    cursor: pointer; transition: background 0.15s;
  }
  .wl-done-btn:hover { background: rgba(0,200,122,.22); }

  .wl-check-list { overflow-y: auto; flex: 1; scrollbar-width: thin; }

  .wl-check-item {
    display: grid;
    grid-template-columns: 16px 1fr auto auto 16px;
    align-items: center;
    gap: 8px;
    padding: 6px 10px 6px 14px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
  }
  .wl-check-item:last-child { border-bottom: none; }
  .wl-check-item:hover { background: var(--bg-hover); }
  .wl-check-item.is-active { background: rgba(0,136,255,.06); }

  .wl-check-item input[type="checkbox"] {
    width: 12px; height: 12px;
    accent-color: var(--accent-blue);
    cursor: pointer; flex-shrink: 0;
  }
  .wl-check-sym { font-size: 11px; font-weight: 600; color: var(--text-primary); letter-spacing: 1px; }
  .wl-check-cat { font-size: 8px; color: var(--text-muted); letter-spacing: 1px; text-align: right; }
  .wl-check-price { font-size: 9px; text-align: right; font-variant-numeric: tabular-nums; min-width: 60px; }
  .wl-check-remove {
    width: 16px; height: 16px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; line-height: 1; color: var(--text-muted);
    background: none; border: none; cursor: pointer; border-radius: 2px;
  }
  .wl-check-remove:hover { color: var(--accent-red); background: rgba(255,70,70,.1); }

  /* Custom symbol search (inside the watchlist dropdown) */
  .wl-search { position: relative; padding: 8px 10px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
  .wl-search input[type="text"] { font-size: 10px; }
  .wl-search-results {
    position: absolute; top: 100%; left: 10px; right: 10px;
    background: var(--bg-panel); border: 1px solid var(--border-bright);
    max-height: 220px; overflow-y: auto; z-index: 210;
    box-shadow: 0 10px 24px rgba(0,0,0,0.45);
    display: none;
  }
  .wl-search-result {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 10px; border-bottom: 1px solid var(--border);
    cursor: pointer; transition: background 0.1s;
  }
  .wl-search-result:last-child { border-bottom: none; }
  .wl-search-result:hover { background: var(--bg-hover); }
  .wl-sr-sym { font-size: 10px; font-weight: 700; color: var(--text-primary); letter-spacing: .5px; min-width: 56px; }
  .wl-sr-name { font-size: 9px; color: var(--text-secondary); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .wl-sr-type { font-size: 8px; color: var(--text-muted); letter-spacing: 1px; flex-shrink: 0; }
  .wl-search-manual { font-size: 9px; color: var(--accent-blue); letter-spacing: .5px; }
  .wl-search-empty { padding: 8px 10px; font-size: 9px; color: var(--text-muted); }
  .wl-search-hint {
    margin-top: 5px; font-size: 8px; letter-spacing: .5px;
    color: var(--accent-amber); background: rgba(255,180,0,.08);
    border: 1px solid rgba(255,180,0,.25); border-radius: 2px;
    padding: 4px 7px;
  }
  .wl-search-hint.wl-search-hint-error {
    color: var(--accent-red); background: rgba(255,51,85,.08); border-color: rgba(255,51,85,.3);
  }

  /* Basic-tier asset picker — collapsible category list instead of free search,
     since Basic accounts can only watch the curated 5-per-category allowlist and
     a search box just invites adding a symbol that'll 403 once monitoring starts. */
  .wl-asset-picker { margin: 8px 10px; border: 1px solid var(--border); border-radius: 2px; overflow: hidden; }
  .wl-asset-cat { border-bottom: 1px solid var(--border); }
  .wl-asset-cat:last-child { border-bottom: none; }
  .wl-asset-cat summary {
    list-style: none; cursor: pointer; padding: 7px 8px;
    font-size: 10px; letter-spacing: 1px; font-weight: 700; color: var(--text-secondary);
    background: var(--bg-card); display: flex; align-items: center; justify-content: space-between;
    user-select: none;
  }
  .wl-asset-cat summary::-webkit-details-marker { display: none; }
  .wl-asset-cat summary::after { content: '+'; color: var(--text-muted); font-size: 12px; }
  .wl-asset-cat[open] summary::after { content: '−'; }
  .wl-asset-cat summary:hover { color: var(--text-primary); }
  .wl-asset-item {
    display: flex; align-items: center; gap: 8px; padding: 6px 10px;
    cursor: pointer; font-size: 10px; border-top: 1px solid var(--border);
  }
  .wl-asset-item:hover { background: var(--bg-hover); }
  .wl-asset-item.active { background: var(--accent-green); color: #000; }
  .wl-asset-item .wl-sr-sym { min-width: 66px; }
  .wl-asset-item.active .wl-sr-sym, .wl-asset-item.active .wl-sr-name { color: #000; }
  .wl-gating-note { padding: 6px 10px 0; font-size: 9px; color: var(--text-secondary); }

  /* Active asset list — scrollable so it never dominates the panel */
  .wl-active-list { max-height: 220px; overflow-y: auto; scrollbar-width: thin; }

  .watchlist-item {
    padding: 7px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background 0.1s;
  }

  .watchlist-item:hover { background: var(--bg-hover); }
  .watchlist-item.active { background: rgba(0,136,255,0.05); border-left: 2px solid var(--accent-blue); }

  .wl-left { display: flex; flex-direction: column; gap: 2px; }
  .wl-sym { font-size: 12px; font-weight: 600; color: var(--text-primary); letter-spacing: 1px; }
  .wl-name { font-size: 9px; color: var(--text-muted); }

  .wl-right { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
  .wl-price { font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
  .wl-chg { font-size: 9px; }

  /* MINI SPARKLINE */
  .sparkline { margin-top: 2px; }

  /* STATS ROW */
  .stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .stat-cell {
    background: var(--bg-panel);
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .stat-label {
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 1px;
  }

  .stat-value {
    font-size: 14px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
  }

  .stat-sub {
    font-size: 9px;
    color: var(--text-muted);
  }

  /* ENGINE CONTROL */
  .engine-control {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
  }

  .btn-engine {
    width: 100%;
    padding: 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
  }

  .btn-engine.start {
    background: rgba(0,255,136,0.1);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
  }

  .btn-engine.start:hover {
    background: rgba(0,255,136,0.2);
    box-shadow: 0 0 20px rgba(0,255,136,0.15);
  }

  .btn-engine.stop {
    background: rgba(255,51,85,0.1);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
  }

  .btn-engine.stop:hover {
    background: rgba(255,51,85,0.2);
  }

  /* LOG */
  .log-area {
    height: 130px;
    overflow-y: auto;
    padding: 8px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
  }

  .log-line {
    font-size: 9px;
    color: var(--text-secondary);
    line-height: 1.8;
    border-bottom: 1px solid transparent;
    font-variant-numeric: tabular-nums;
    animation: logFade 0.2s ease;
  }

  @keyframes logFade {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  .log-line .log-ts { color: var(--text-muted); }
  .log-line .log-info { color: var(--accent-cyan); }
  .log-line .log-warn { color: var(--accent-amber); }
  .log-line .log-signal { color: var(--accent-green); }
  .log-line .log-err { color: var(--accent-red); }

  /* RISK PANEL */
  .risk-meter {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
  }

  .risk-bar-track {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin: 6px 0 4px;
  }

  .risk-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-amber), var(--accent-red));
    background-size: 300% 100%;
    transition: background-position 0.5s;
  }

  .risk-labels {
    display: flex;
    justify-content: space-between;
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 1px;
  }

  /* MODAL */
  .modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
  }

  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  .modal {
    background: var(--bg-panel);
    border: 1px solid var(--border-bright);
    width: 420px;
    border-radius: 4px;
    overflow: hidden;
    animation: scaleIn 0.2s ease;
    box-shadow: 0 0 60px rgba(0,136,255,0.1);
  }

  @keyframes scaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
  }

  .modal-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .modal-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-amber);
  }

  .modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
  }

  .modal-body { padding: 18px; }

  .modal-order-summary {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 14px;
    margin-bottom: 16px;
  }

  .order-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
  }

  .order-row:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }

  .order-key { font-size: 10px; color: var(--text-muted); letter-spacing: 1px; }
  .order-val { font-size: 11px; font-weight: 600; color: var(--text-primary); }
  .order-val.green { color: var(--accent-green); }
  .order-val.red { color: var(--accent-red); }
  .order-val.amber { color: var(--accent-amber); }

  .modal-footer {
    display: flex;
    gap: 8px;
    margin-top: 16px;
  }

  .btn-confirm {
    flex: 1;
    padding: 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    cursor: pointer;
    border-radius: 2px;
    background: rgba(0,255,136,0.15);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
    transition: all 0.15s;
  }

  .btn-confirm:hover {
    background: rgba(0,255,136,0.25);
    box-shadow: 0 0 20px rgba(0,255,136,0.2);
  }

  .btn-cancel {
    padding: 10px 16px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
    letter-spacing: 1px;
  }

  .btn-cancel:hover { border-color: var(--text-secondary); color: var(--text-secondary); }

  /* SCROLLBAR */
  ::-webkit-scrollbar { width: 4px; height: 4px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }

  /* SEPARATOR */
  .sep { height: 1px; background: var(--border); margin: 4px 0; }

  /* PULSE ANIMATION FOR NEW SIGNALS */
  @keyframes signalPulse {
    0% { box-shadow: 0 0 0 0 rgba(0,255,136,0.4); }
    70% { box-shadow: 0 0 0 8px rgba(0,255,136,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,255,136,0); }
  }

  .alert-card.new { animation: slideIn 0.3s ease, signalPulse 1s ease 0.3s; }

  /* EMPTY STATE */
  .empty-state {
    padding: 30px 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 10px;
    letter-spacing: 1px;
    line-height: 2;
  }

  /* BOTTOM BAR */
  .bottom-bar {
    height: 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 24px;
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 1px;
    grid-column: 1 / -1;
  }

  .bottom-bar span { color: var(--text-secondary); }

  .tag-green {
    color: var(--accent-green);
    font-weight: 600;
  }
  .tag-red { color: var(--accent-red); font-weight: 600; }
  .tag-amber { color: var(--accent-amber); font-weight: 600; }
  .tag-cyan { color: var(--accent-cyan); }

  /* ── LOGIN OVERLAY ── */
  .login-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .login-box {
    width: 380px;
    background: var(--bg-panel);
    border: 1px solid var(--border-bright);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 0 80px rgba(0,136,255,0.12), 0 0 40px rgba(0,255,136,0.04);
    animation: scaleIn 0.25s ease;
  }

  .login-header {
    padding: 28px 24px 18px;
    border-bottom: 1px solid var(--border);
    text-align: center;
  }

  .login-branding {
    display: flex;
    align-items: center;
    gap: 14px;
    justify-content: center;
    margin-bottom: 4px;
  }

  .login-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
  }

  .login-tab {
    flex: 1;
    padding: 10px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.15s;
  }

  .login-tab.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
    background: rgba(0,136,255,0.05);
  }

  .login-tab:hover:not(.active) {
    color: var(--text-secondary);
    background: var(--bg-hover);
  }

  .login-body { padding: 20px 24px; }

  .login-field { margin-bottom: 14px; }

  .login-field-label {
    font-size: 8px;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 5px;
  }

  .login-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    padding: 9px 10px;
    outline: none;
    border-radius: 2px;
    transition: border-color 0.15s;
  }

  .login-input:focus {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
  }

  .login-remember { margin-bottom: 16px; }

  .login-btn {
    width: 100%;
    padding: 11px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    cursor: pointer;
    border-radius: 2px;
    background: rgba(0,255,136,0.12);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
    transition: all 0.2s;
  }

  .login-btn:hover:not(:disabled) {
    background: rgba(0,255,136,0.2);
    box-shadow: 0 0 20px rgba(0,255,136,0.15);
  }

  .login-btn:disabled { opacity: 0.5; cursor: not-allowed; }

  .login-error {
    background: rgba(255,51,85,0.1);
    border: 1px solid rgba(255,51,85,0.3);
    color: var(--accent-red);
    font-size: 10px;
    padding: 8px 10px;
    border-radius: 2px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
  }

  .login-footer {
    padding: 10px 24px 14px;
    text-align: center;
    border-top: 1px solid var(--border);
  }

  .logout-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    padding: 3px 8px;
    cursor: pointer;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: all 0.15s;
  }

  .logout-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
  }

  .save-btn-wrap { padding: 0 16px 12px; }

  /* STRATEGY BUILDER */
  .condition-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 2px solid var(--border-bright);
    border-radius: 2px;
    padding: 8px 10px;
    transition: border-color 0.15s;
  }

  /* Accordion condition card */
  .cond-header {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
  }
  .cond-name {
    flex: 1;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .cond-chevron {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    transition: transform 0.2s;
    stroke: var(--text-muted);
  }
  .cond-chevron.open { transform: rotate(180deg); }
  .cond-dot {
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: color 0.2s;
    line-height: 1;
  }
  .cond-dot.met    { color: var(--accent-green); }
  .cond-dot.unmet  { color: var(--text-muted); }
  .cond-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 0 2px;
    line-height: 1;
    flex-shrink: 0;
    transition: color 0.15s;
  }
  .cond-remove:hover { color: var(--accent-red); }
  .cond-dir-btn {
    flex-shrink: 0;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 8px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 2px 6px;
    border-radius: 2px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.15s, color 0.15s;
  }
  .cond-dir-btn.cond-dir-buy  { background: rgba(0,255,136,0.12); color: var(--accent-green); border-color: rgba(0,255,136,0.3); }
  .cond-dir-btn.cond-dir-sell { background: rgba(255,51,85,0.12);  color: var(--accent-red);   border-color: rgba(255,51,85,0.3); }
  .cond-dir-btn.cond-level-btn { background: rgba(0,136,255,0.1); color: var(--accent-blue); border-color: rgba(0,136,255,0.3); }
  .cond-body {
    padding-top: 7px;
  }
  .cond-desc {
    font-size: 9px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 4px 0;
  }
  .cond-input-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
  }
  .cond-input-label {
    font-size: 9px;
    color: var(--text-muted);
    white-space: nowrap;
  }
  .cond-params-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 6px 10px;
    margin: 5px 0 2px;
    padding: 5px 7px;
    background: rgba(0,0,0,0.18);
    border: 1px solid var(--border);
    border-radius: 2px;
  }
  .cond-param {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
  }
  .cond-param-label {
    font-size: 9px;
    color: var(--text-muted);
    white-space: nowrap;
    letter-spacing: 0.5px;
  }
  .cond-params-row input[type="number"],
  .cond-params-row select {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 10px;
  }

  .cond-params-row select,
  .ind-param select {
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236b7280'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    padding-right: 18px;
  }

  .ind-param select {
    width: 100%;
    background-color: var(--panel-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 2px;
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 2px 18px 2px 4px;
  }

  /* Indicator settings groups */
  .ind-group {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
  }
  .ind-group:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
  .ind-group-label {
    font-size: 9px;
    color: var(--accent-cyan);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 6px;
    font-weight: 600;
  }
  .ind-params {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 8px;
    align-items: center;
  }
  .ind-param {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .ind-param-label {
    font-size: 9px;
    color: var(--text-muted);
    white-space: nowrap;
  }
  .ind-param input {
    width: 46px !important;
    font-size: 10px;
    padding: 3px 5px !important;
  }
  .condition-card:hover { border-color: var(--border-bright); }
  .condition-card.met   { border-left-color: var(--accent-green); }
  .condition-card.unmet { border-left-color: var(--text-muted); }

  .strat-type-toggle {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow: hidden;
    flex-shrink: 0;
  }

  .strat-type-btn {
    padding: 5px 10px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
  }
  .strat-type-btn.strat-buy.active  { background: rgba(0,255,136,0.15); color: var(--accent-green); }
  .strat-type-btn.strat-sell.active { background: rgba(255,51,85,0.15);  color: var(--accent-red);   }
  .strat-type-btn:not(.active):hover { background: var(--bg-hover); color: var(--text-secondary); }

  .template-btn {
    padding: 4px 8px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 8px;
    letter-spacing: 0.5px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
    white-space: nowrap;
  }
  .template-btn:hover {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    background: rgba(170,85,255,0.08);
  }

  .add-cond-btn {
    width: 100%;
    margin-top: 8px;
    padding: 7px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    letter-spacing: 2px;
    background: rgba(0,136,255,0.06);
    border: 1px dashed var(--border-bright);
    color: var(--accent-blue);
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
  }
  .add-cond-btn:hover { background: rgba(0,136,255,0.12); border-color: var(--accent-blue); }

  /* ── MOBILE ─────────────────────────────────────────────────────────────── */
  @media (max-width: 768px) {

    body { overflow: hidden; }

    .topbar {
      padding: 0 12px;
      height: 40px;
    }
    .topbar-logo .logo-sub { display: none; }
    .topbar-ticker-tape    { display: none; }
    .topbar-status         { gap: 8px; }
    .topbar-status > *:not(#engineBtn):not(#engineDot):not(#engineStatus):not(.theme-toggle):not(#clock) { display: none; }

    .layout {
      flex-direction: column;
      height: calc(100vh - 40px - 38px - 52px - 28px); /* topbar + apex-nav + mobile nav + disclaimer */
      overflow: hidden;
    }

    /* hide resizer handles on mobile */
    .panel-resizer { display: none; }

    /* each panel becomes a full-screen tab */
    #leftPanel, #rightPanel {
      width: 100% !important;
      min-width: unset !important;
      max-width: unset !important;
      height: 100%;
      flex-shrink: 0;
      display: none;
      border: none;
      overflow-y: auto;
    }
    #leftPanel.mobile-active,
    #rightPanel.mobile-active  { display: block; }

    .center-panel {
      width: 100%;
      height: 100%;
      display: none;
      flex-direction: column;
      overflow: hidden;
    }
    .center-panel.mobile-active { display: flex; }

    /* compact stats row — horizontal scroll, never shrink */
    .stats-row {
      overflow-x: auto;
      flex-wrap: nowrap;
      flex-shrink: 0;
      scrollbar-width: none;
    }
    .stats-row::-webkit-scrollbar { display: none; }
    .stat-cell { min-width: 90px; padding: 8px 10px; }

    /* chart fills remaining space, strictly contained */
    .chart-area {
      flex: 1;
      min-height: 0;
      overflow: hidden;
    }
    #tvChart {
      width: 100%;
      height: 100%;
      overflow: hidden;
    }
    #tvChart iframe {
      max-height: 100% !important;
    }

    /* positions table — horizontal scroll */
    .positions-table { font-size: 9px; }
    .positions-table th,
    .positions-table td { padding: 5px 6px; white-space: nowrap; }

    /* ── MOBILE NAV BAR ── */
    .mobile-nav {
      display: flex;
      position: fixed;
      bottom: 0; left: 0; right: 0;
      height: 52px;
      background: var(--bg-panel);
      border-top: 1px solid var(--border);
      z-index: 10000; /* above TradingView iframe */
    }
    .mobile-nav-btn {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 3px;
      background: none;
      border: none;
      cursor: pointer;
      color: var(--text-muted);
      font-family: 'IBM Plex Mono', monospace;
      font-size: 8px;
      letter-spacing: 1px;
      transition: color 0.15s;
      -webkit-tap-highlight-color: transparent;
    }
    .mobile-nav-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
    .mobile-nav-btn.active       { color: var(--accent-blue); }
    .mobile-nav-btn.alert-active { color: var(--accent-amber); }
  }

  /* hide mobile nav on desktop */
  @media (min-width: 769px) {
    .mobile-nav { display: none; }
  }

  /* TOOL PAGE FOOTER */
  .tool-footer {
    border-top: 1px solid var(--border);
    padding: 20px 5%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 28px;
  }
  .tool-footer-logo img { height: 32px; width: auto; border-radius: 6px; display: block; }
  .tool-footer-links { display: flex; gap: 20px; flex-wrap: wrap; margin-left: 40px; }
  .tool-footer-links a { font-size: 12px; color: var(--text-muted); text-decoration: none; font-family: 'Space Grotesk', sans-serif; transition: color 0.2s; }
  .tool-footer-links a:hover { color: var(--text-primary); }
  .tool-footer-copy { font-size: 11px; color: var(--text-muted); letter-spacing: 0.5px; margin-left: auto; }

  @media (max-width: 640px) {
    .tool-footer { justify-content: center; text-align: center; }
    .tool-footer-links { margin-left: 0; margin-top: 16px; justify-content: center; width: 100%; }
    .tool-footer-copy { margin-left: 0; margin-top: 10px; width: 100%; text-align: center; }
  }

  /* DISCLAIMER BANNER — fixed to bottom of viewport, always visible */
  .disclaimer-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 5px 16px;
    font-size: 8px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    line-height: 1.6;
    text-align: center;
  }

  .disclaimer-bar strong {
    color: var(--accent-amber);
    letter-spacing: 1px;
  }

  /* Per-tool save/sync status line, shown under the disclaimer text itself
     (e.g. Portfolio Balancer's account-vs-local-only save state). */
  .pb-sync-status { display: inline-block; margin-top: 2px; font-size: 8px; letter-spacing: 0.5px; }
  .pb-sync-status.saved { color: var(--accent-green); }
  .pb-sync-status.error { color: var(--accent-amber); }
  .pb-sync-status.local { color: var(--text-muted); }

  /* Link to the full illustrated guide, placed right next to the educational
     disclaimer so it's the first thing a confused first-time user sees. */
  .disclaimer-guide-link {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--accent-green);
  }
  .disclaimer-guide-link:hover { opacity: 0.8; }

  /* Small "more info" marker next to a control label. A bare title attribute
     on plain text gives no visual hint a tooltip exists, and doesn't work on
     tap at all on most mobile browsers — this gives it a visible affordance
     (hover shows the native title on desktop; static/js/info-tooltip.js
     handles tap-to-show on touch devices). */
  .info-dot {
    display: inline-flex; align-items: center; justify-content: center;
    width: 13px; height: 13px; border-radius: 50%;
    background: var(--bg-hover); border: 1px solid var(--border);
    color: var(--text-muted); font-size: 9px; font-weight: 700;
    font-family: 'IBM Plex Mono', monospace; cursor: help; margin-left: 4px;
    flex-shrink: 0; position: relative;
  }
  .info-dot:hover, .info-dot:focus { border-color: var(--accent-cyan); color: var(--accent-cyan); outline: none; }
  /* Positioned in JS (info-tooltip.js) with fixed top/left in viewport
     coordinates and appended to <body> — never a child of .info-dot — so a
     sidebar's own overflow:auto/hidden can never clip it. */
  .info-dot-popover {
    position: fixed; z-index: 9999;
    width: 240px; max-width: 70vw; background: var(--bg-panel); border: 1px solid var(--border-bright);
    border-radius: 8px; padding: 10px 12px; font-size: 11px; font-weight: 400; line-height: 1.5;
    color: var(--text-primary); text-align: left; cursor: default; white-space: normal;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  }

  /* SIGN-IN BUTTON (topbar) */
  .signin-btn {
    background: transparent;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    padding: 3px 8px;
    cursor: pointer;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: all 0.15s;
  }

  .signin-btn:hover {
    background: rgba(0,255,136,0.1);
  }

  /* ── THEME TOGGLE BUTTON ── */
  .theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 14px;
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
  }

  .theme-toggle:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
  }

  /* ── LIGHT THEME ── */
  [data-theme="light"] {
    --bg-primary: #f5f7fa;
    --bg-secondary: #eef0f5;
    --bg-panel: #f0f2f7;
    --bg-card: #ffffff;
    --bg-hover: #e4e8f0;
    --border: #d0d8e8;
    --border-bright: #b8c4d8;
    --text-primary: #0f1c2e;
    --text-secondary: #3d5470;
    --text-muted: #5c748f;
    --accent-green: #00874a;
    --accent-green-dim: #006638;
    --accent-red: #d0122b;
    --accent-red-dim: #a80f22;
    --accent-blue: #0066cc;
    --accent-blue-dim: #0050a0;
    --accent-amber: #c07800;
    --accent-cyan: #007799;
    --accent-purple: #7722cc;
    --signal-buy: #00874a;
    --signal-sell: #d0122b;
    --signal-hold: #c07800;
  }

  [data-theme="light"] body::before {
    display: none;
  }

  [data-theme="light"] #tierLock {
    background: rgba(240,242,247,0.92) !important;
  }

  [data-theme="light"] .cond-params-row {
    background: var(--bg-secondary);
    border-color: var(--border-bright);
  }

  [data-theme="light"] .cond-params-row input[type="number"],
  [data-theme="light"] .cond-params-row select {
    background: var(--bg-card);
    border-color: var(--border-bright);
    color: var(--text-primary);
  }

  [data-theme="light"] .cond-param-label { color: var(--text-secondary); }

  [data-theme="light"] .ind-param select {
    background-color: var(--bg-card);
    border-color: var(--border-bright);
    color: var(--text-primary);
  }

  /* ─── Apex Site Navigation ──────────────────────────────────────────────── */
  .apex-nav {
    display: flex;
    align-items: stretch;
    height: 38px;
    background: var(--bg-panel);
    border-bottom: 2px solid var(--border);
    padding: 0 8px;
    position: sticky;
    top: 44px;
    z-index: 90;
    gap: 0;
  }

  .apex-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0 18px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
    white-space: nowrap;
  }

  .apex-nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
  }

  .apex-nav-item.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
    background: rgba(0, 136, 255, 0.05);
  }

  .apex-nav-item .nav-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--border-bright);
    flex-shrink: 0;
    transition: background 0.15s;
  }

  .apex-nav-item.active .nav-dot  { background: var(--accent-blue); }
  .apex-nav-item:hover .nav-dot   { background: var(--text-secondary); }

  .apex-nav-item .nav-tag {
    font-size: 7px;
    letter-spacing: 1px;
    padding: 1px 5px;
    border-radius: 1px;
    border: 1px solid;
    line-height: 1.4;
  }

  .apex-nav-sep {
    width: 1px;
    background: var(--border);
    margin: 9px 2px;
    flex-shrink: 0;
  }

  .apex-nav-spacer { flex: 1; }

  .apex-nav-right {
    display: flex;
    align-items: stretch;
  }

  /* light-mode nav */
  [data-theme="light"] .apex-nav {
    background: var(--bg-card);
    border-bottom-color: var(--border-bright);
  }
  [data-theme="light"] .apex-nav-item.active {
    background: rgba(0, 136, 255, 0.06);
  }