:root {
  --bg: #0b0f17;
  --bg-elev: #111827;
  --bg-card: #131a27;
  --bg-hover: #1a2233;
  --line: #1f2a3d;
  --line-soft: #182033;
  --text: #e5edf7;
  --text-dim: #9aa7be;
  --text-mute: #6b7894;
  --accent: #7dd3fc;
  --accent-2: #a78bfa;
  --buy: #34d399;
  --buy-dim: #1b5a45;
  --sell: #f87171;
  --sell-dim: #5a2424;
  --warn: #fbbf24;
  --shadow: 0 4px 20px rgba(0, 0, 0, .35);
  --radius: 12px;
  --radius-sm: 8px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Roboto Mono", monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 24px;
  background: linear-gradient(180deg, #0f1523 0%, #0b0f17 100%);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  font-size: 28px;
  line-height: 1;
  color: var(--accent);
  background: linear-gradient(135deg, #7dd3fc, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.title h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .2px;
}
.title .sub {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-mute);
}

.controls {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: .8px;
}
.field select,
.field input {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font: 13px/1 var(--mono);
  min-width: 90px;
  outline: none;
  transition: border-color .15s;
}
.field select:focus,
.field input:focus { border-color: var(--accent); }

.btn-group { display: flex; gap: 8px; }
.btn {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  font: 600 13px/1 -apple-system, system-ui, sans-serif;
  cursor: pointer;
  transition: all .15s;
}
.btn:hover { background: var(--bg-hover); border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(135deg, #7dd3fc, #a78bfa);
  border-color: transparent;
  color: #0b0f17;
}
.btn.primary:hover { filter: brightness(1.1); }
.btn:active { transform: translateY(1px); }

.layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 16px;
  padding: 16px;
  max-width: 1600px;
  margin: 0 auto;
}
.layout > .chart-card { grid-column: 1; grid-row: 1; }
.layout > .book-card { grid-column: 2; grid-row: 1; }
.layout > .agents-card { grid-column: 1; grid-row: 2; }
.layout > .feed-card { grid-column: 2; grid-row: 2; }
.layout > .stats-card { grid-column: 1 / span 2; grid-row: 3; }
.layout > .about-card { grid-column: 1 / span 2; grid-row: 4; }

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .layout > .chart-card,
  .layout > .book-card,
  .layout > .agents-card,
  .layout > .feed-card,
  .layout > .stats-card,
  .layout > .about-card {
    grid-column: 1;
    grid-row: auto;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.card-head h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .3px;
}
.muted { color: var(--text-mute); font-size: 12px; }
.small { color: var(--text-mute); font-size: 12px; }

.chart-card { min-height: 420px; }
.chart-wrap {
  flex: 1;
  position: relative;
  padding: 8px 16px 12px;
}
.chart-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.price-box {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.price {
  font: 700 22px/1 var(--mono);
  color: var(--text);
}
.price-change {
  font: 600 12px/1 var(--mono);
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--bg-hover);
  color: var(--text-mute);
}
.price-change.up { color: var(--buy); background: rgba(52, 211, 153, 0.12); }
.price-change.down { color: var(--sell); background: rgba(248, 113, 113, 0.12); }

.stock-tabs {
  display: flex;
  gap: 6px;
  padding: 0 16px 14px;
  flex-wrap: wrap;
}
.stock-tabs button {
  background: var(--bg-elev);
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  font: 600 11px/1 var(--mono);
  cursor: pointer;
  letter-spacing: .4px;
}
.stock-tabs button:hover { border-color: var(--accent); color: var(--text); }
.stock-tabs button.active {
  background: linear-gradient(135deg, rgba(125,211,252,.2), rgba(167,139,250,.15));
  border-color: var(--accent);
  color: var(--text);
}

.book { padding: 0 16px 16px; }
.book-col { display: flex; flex-direction: column; }
.book-head,
.book-list li {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  font: 12px/1.8 var(--mono);
}
.book-head {
  color: var(--text-mute);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .8px;
  padding: 10px 8px 6px;
  border-bottom: 1px solid var(--line-soft);
}
.book-list {
  list-style: none;
  margin: 0;
  padding: 2px 0;
  max-height: 220px;
  overflow-y: auto;
}
.book-list.asks { display: flex; flex-direction: column-reverse; }
.book-list li {
  padding: 2px 8px;
  position: relative;
}
.book-list li .num { text-align: right; }
.book-list li .bar {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  opacity: .18;
  border-radius: 2px;
}
.book-list.asks li .bar { background: var(--sell); }
.book-list.bids li .bar { background: var(--buy); }
.book-list.asks li .price { color: var(--sell); }
.book-list.bids li .price { color: var(--buy); }
.book-list li > span { position: relative; z-index: 1; }
.spread {
  padding: 8px;
  margin: 6px 0;
  text-align: center;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  font: 600 11px/1 var(--mono);
  color: var(--text-mute);
  letter-spacing: .5px;
  text-transform: uppercase;
}

.table-wrap { overflow: auto; max-height: 320px; }
.agents-table {
  width: 100%;
  border-collapse: collapse;
  font: 12px/1.4 var(--mono);
}
.agents-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 1;
  text-align: left;
  padding: 10px 12px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-mute);
  border-bottom: 1px solid var(--line-soft);
  font-weight: 600;
}
.agents-table tbody td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line-soft);
}
.agents-table tbody tr:hover { background: var(--bg-hover); }
.agents-table .num { text-align: right; }
.agents-table .pl-up { color: var(--buy); }
.agents-table .pl-down { color: var(--sell); }
.agents-table .agent-name {
  display: flex;
  align-items: center;
  gap: 8px;
}
.agent-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}
.type-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font: 600 10px/1.4 -apple-system, system-ui, sans-serif;
  letter-spacing: .3px;
  text-transform: uppercase;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  color: var(--text-dim);
}

.feed-card { min-height: 320px; max-height: 360px; }
.feed {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  overflow-y: auto;
  flex: 1;
  font: 12px/1.5 var(--mono);
}
.feed li {
  padding: 6px 16px;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 8px;
  align-items: center;
}
.feed li .t { color: var(--text-mute); font-size: 11px; }
.feed li .side { font-weight: 700; letter-spacing: .3px; }
.feed li.buy .side { color: var(--buy); }
.feed li.sell .side { color: var(--sell); }
.feed li .price { color: var(--text); font-weight: 600; }
.feed-empty { color: var(--text-mute); text-align: center; padding: 24px; font-size: 12px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  padding: 16px;
}
.stat {
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.stat .k {
  font: 600 10px/1.4 -apple-system, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-mute);
}
.stat .v {
  font: 700 16px/1.2 var(--mono);
  color: var(--text);
  margin-top: 4px;
}

.about-card .about-body {
  padding: 14px 18px 18px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
}
.about-card p { margin: 0 0 10px; }
.about-card p:last-child { margin: 12px 0 0; }

.footer {
  padding: 12px 24px;
  border-top: 1px solid var(--line);
  color: var(--text-mute);
  font: 12px/1 var(--mono);
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  background: var(--bg-elev);
}
.footer .dot { opacity: .5; }
.footer b { color: var(--text); }

/* llm badge in footer */
.llm-badge {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-hover);
  border: 1px solid var(--line);
  color: var(--text-mute);
  font: 600 11px/1.4 var(--mono);
  letter-spacing: .3px;
}
.llm-badge.live {
  color: #0b0f17;
  background: linear-gradient(135deg, #7dd3fc, #a78bfa);
  border-color: transparent;
}

/* agent source badge */
.src-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font: 600 9px/1.4 -apple-system, system-ui, sans-serif;
  letter-spacing: .4px;
  text-transform: uppercase;
  margin-left: 6px;
}
.src-badge.llm { background: rgba(167, 139, 250, 0.18); color: #c4b5fd; }
.src-badge.rule { background: rgba(125, 211, 252, 0.12); color: var(--text-mute); }

/* reasoning tooltip */
.reasoning {
  color: var(--text-mute);
  font-size: 11px;
  font-style: italic;
  margin-top: 2px;
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* modal */
.modal-root {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-root.open { display: flex; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 9, 16, .72);
  backdrop-filter: blur(4px);
}
.modal {
  position: relative;
  width: min(560px, 94vw);
  max-height: 90vh;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modal-in .18s ease-out;
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: none; }
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line-soft);
  gap: 14px;
}
.modal-head h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}
.modal-head p { margin: 4px 0 0; }
.btn-icon {
  background: transparent;
  color: var(--text-mute);
  border: none;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
  transition: color .15s;
}
.btn-icon:hover { color: var(--text); }

.modal-body {
  padding: 18px 20px 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.warning {
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.6;
}
.warning b { color: var(--warn); }
.warning code {
  background: var(--bg-elev);
  padding: 1px 5px;
  border-radius: 3px;
  font: 11px var(--mono);
  color: var(--text);
}

.field-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field-block > span:first-child {
  font: 600 11px/1 -apple-system, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-mute);
}
.field-block input[type="text"],
.field-block input[type="password"],
.field-block select {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: 13px var(--mono);
  outline: none;
  transition: border-color .15s;
}
.field-block input:focus,
.field-block select:focus { border-color: var(--accent); }
.field-block input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.field-block .hint {
  font: 12px var(--mono);
  color: var(--text-mute);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 14px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.toggle input { display: none; }
.toggle-track {
  width: 36px;
  height: 20px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 20px;
  position: relative;
  transition: background .2s;
  flex: none;
}
.toggle-thumb {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 16px;
  height: 16px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform .2s, background .2s;
}
.toggle input:checked + .toggle-track {
  background: linear-gradient(135deg, #7dd3fc, #a78bfa);
  border-color: transparent;
}
.toggle input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
  background: #0b0f17;
}
.toggle-label {
  font: 12px -apple-system, system-ui, sans-serif;
  color: var(--text-dim);
  text-transform: none;
  letter-spacing: normal;
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.test-result {
  font: 12px var(--mono);
  color: var(--text-mute);
  flex: 1 1 100%;
  order: 1;
}
.test-result.ok { color: var(--buy); }
.test-result.err { color: var(--sell); }

/* scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-hover); }