:root {
  --base: #080b12;
  --rail: #0b1018;
  --surface: #0d121b;
  --surface2: #111823;
  --panel: #0f141d;
  --border: #202734;
  --muted: #8b95a7;
  --dim: #536074;
  --text: #eef3fb;
  --blue: #2f7df6;
  --green: #18c99b;
  --red: #ef4e5a;
  --amber: #f4b73f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--base);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: flex;
  overflow-x: hidden;
}
button, input, select { font: inherit; }

.rail {
  width: 210px;
  flex: 0 0 210px;
  min-height: 100vh;
  background: var(--rail);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 17px 18px; border-bottom: 1px solid var(--border); }
.mark { width: 26px; height: 26px; border-radius: 6px; background: linear-gradient(135deg, #2f7df6, #18c99b); display: grid; place-items: center; font-size: 11px; font-weight: 800; }
.brand-name { font-size: 15px; font-weight: 750; }
.brand-mode { color: var(--blue); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; }
nav { padding: 14px 10px; }
nav a {
  display: block;
  color: #b4bdcc;
  text-decoration: none;
  font-size: 13px;
  padding: 11px 14px;
  border-radius: 5px;
  margin-bottom: 5px;
}
nav a.active, nav a:hover { color: #fff; background: #141c2a; box-shadow: inset 2px 0 0 var(--blue); }
.rail-status { position: absolute; left: 18px; right: 18px; bottom: 18px; border-top: 1px solid var(--border); padding-top: 12px; }
.rail-status span, .status-strip span, .metrics span, label, th, .panel-head span {
  color: var(--dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.rail-status strong { display: block; color: #d8dfeb; font-size: 12px; font-weight: 500; margin: 4px 0 10px; }

.app { flex: 1; min-width: 0; padding: 0; }
.workspace {
  height: 46px;
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 10px;
  border-bottom: 1px solid var(--border);
  margin: 0 0 8px;
  padding: 0 10px;
  background: #080b12;
}
.workspace-left, .workspace-right, .tabs { display: flex; align-items: center; gap: 8px; min-width: 0; }
.workspace-menu, .tab, .icon-button, .small-button {
  height: 32px;
  color: #cbd3df;
  background: #0d121b;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 12px;
  cursor: pointer;
}
.workspace-menu { min-width: 170px; text-align: left; }
.tab { min-width: 160px; text-align: left; color: #9ba6b8; }
.tab.active { color: #fff; border-bottom-color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }
.tab.add { min-width: 36px; width: 36px; text-align: center; font-size: 18px; padding: 0; }
.inline-date {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
  font-size: 12px;
}
.inline-date input { width: 142px; margin: 0; }
.arrow { color: var(--dim); }

.terminal {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 8px;
  align-items: start;
  padding: 0 8px;
}
.main-stack { min-width: 0; }
.chart-terminal, .panel, .metrics div, .config {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.terminal-head, .panel-head, .config-head {
  min-height: 42px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
h1, h2, h3 { margin: 0; letter-spacing: 0; }
h1 { font-size: 15px; font-weight: 700; }
h2 { font-size: 13px; font-weight: 650; }
h3 { font-size: 12px; font-weight: 650; color: #d7deea; margin-bottom: 12px; }
.subline { display: flex; gap: 9px; color: var(--muted); font-size: 12px; margin-top: 8px; }
.chart-actions { display: flex; gap: 7px; }
.small-button { height: 30px; padding: 0 10px; font-size: 12px; }

.chart-canvas {
  position: relative;
  background:
    radial-gradient(circle at 78% 8%, rgba(47,125,246,.08), transparent 34%),
    linear-gradient(180deg, #090f19 0%, #05080d 58%, #040609 100%);
}
.draw-tools {
  display: none;
}
.draw-tools button {
  width: 22px;
  height: 22px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: #8b95a7;
  cursor: pointer;
}
.draw-tools button:hover { color: #fff; background: #141c2a; border-color: #273247; }
.ohlc-readout {
  position: absolute;
  z-index: 3;
  left: 12px;
  top: 10px;
  display: grid;
  gap: 4px;
  color: #b8c2d2;
  font-size: 12px;
  pointer-events: none;
}
.ohlc-readout strong { color: #eaf0f8; font-weight: 650; }
.ohlc-readout span { color: #8b95a7; }
.ohlc-readout b { color: #18c99b; font-weight: 650; font-variant-numeric: tabular-nums; }
.ohlc-readout b.fast { color: #3c85ff; }
.ohlc-readout b.slow { color: #f4b73f; }
.ohlc-readout b.volume { color: #18c99b; }
.ohlc-readout em { font-style: normal; margin-left: 8px; font-variant-numeric: tabular-nums; }
svg { width: 100%; height: 300px; display: block; padding: 0; }
#priceChart {
  width: 100%;
  height: 410px;
  background: #070b12;
}
#equityChart, #drawdownChart { height: 255px; }
.chart-footer {
  height: 34px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 14px;
  color: var(--muted);
  font-size: 12px;
}
.chart-footer span[data-range] {
  cursor: pointer;
  border-radius: 4px;
  padding: 3px 5px;
}
.chart-footer span[data-range]:hover,
.chart-footer span[data-range].active {
  color: #fff;
  background: rgba(47,125,246,.16);
}
.chart-footer strong { margin-left: auto; color: #cbd3df; font-size: 11px; font-weight: 500; }

.metrics {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 1px;
  margin: 10px 0;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
}
.metrics div { border: 0; border-radius: 0; padding: 12px 14px; min-width: 0; background: #0d121b; }
.metrics strong { display: block; margin-top: 7px; font-size: 17px; font-weight: 750; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr .85fr;
  gap: 10px;
}
.panel-head { padding: 9px 12px; min-height: 38px; }
.legend { color: var(--muted); font-size: 11px; display: flex; align-items: center; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.legend i { width: 14px; height: 2px; display: inline-block; background: #e4e4e7; }
.legend .fast { background: var(--amber); }
.legend .slow { background: var(--muted); }
.legend .buy { background: var(--green); height: 8px; width: 8px; border-radius: 999px; }
.legend .sell { background: var(--red); height: 8px; width: 8px; border-radius: 999px; }
.legend .equity { background: var(--green); }
.legend .bench { background: var(--blue); }

.config {
  position: sticky;
  top: 56px;
  max-height: calc(100vh - 66px);
  overflow: auto;
}
.config-head span {
  border: 1px solid rgba(47,125,246,.35);
  background: rgba(47,125,246,.1);
  color: #8eb7ff;
  border-radius: 4px;
  padding: 3px 7px;
  font-size: 10px;
  text-transform: uppercase;
}
.config-tabs { display: grid; grid-template-columns: repeat(3, 1fr); padding: 0 12px; border-bottom: 1px solid var(--border); }
.config-tabs button {
  height: 42px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.config-tabs .active { color: #fff; border-bottom-color: var(--blue); }
.config-section { padding: 16px 14px; border-bottom: 1px solid var(--border); }
label { display: block; color: #9ba6b8; margin-bottom: 10px; }
input, select {
  display: block;
  width: 100%;
  height: 32px;
  margin-top: 6px;
  background: #090d14;
  color: #eef3fb;
  border: 1px solid #2a3342;
  border-radius: 4px;
  padding: 0 9px;
}
input[type="range"] { padding: 0; accent-color: var(--blue); border: 0; background: transparent; }
.slider-row {
  display: grid;
  grid-template-columns: 72px 1fr 46px;
  gap: 10px;
  align-items: center;
}
.slider-row input { margin: 0; }
output { height: 28px; display: grid; place-items: center; border: 1px solid #2a3342; border-radius: 4px; color: #dfe6f2; font-size: 12px; }
.run-button, .save-button {
  width: calc(100% - 28px);
  height: 38px;
  margin: 14px;
  border: 0;
  border-radius: 4px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.save-button { margin-top: 0; background: #0d121b; border: 1px solid var(--border); color: #d8dfeb; }
button:disabled { opacity: .55; cursor: wait; }

.donut-wrap { display: grid; grid-template-columns: 135px 1fr; gap: 18px; padding: 18px; align-items: center; }
.donut {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--blue) 0 62%, var(--green) 62% 82%, var(--amber) 82% 92%, #2a3342 92% 100%);
  position: relative;
}
.donut::after { content: ""; position: absolute; inset: 18px; border-radius: 50%; background: var(--panel); }
.donut span, .donut small { position: relative; z-index: 1; display: block; text-align: center; }
.donut span { font-size: 18px; font-weight: 750; }
.donut small { color: var(--muted); font-size: 11px; margin-top: 22px; position: absolute; }
.risk-list { display: grid; gap: 9px; color: #c6cfdd; font-size: 12px; }
.risk-list div { display: grid; grid-template-columns: 12px 1fr auto; gap: 8px; align-items: center; }
.risk-list i { width: 8px; height: 8px; background: #6b7280; display: block; border-radius: 2px; }
.risk-list .blue { background: var(--blue); }
.risk-list .green { background: var(--green); }
.risk-list .red { background: var(--red); }
.risk-list .amber { background: var(--amber); }

.bottom-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, .7fr) minmax(300px, .7fr);
  gap: 8px;
  margin: 8px 8px 0;
}
.audit-grid { grid-template-columns: 1fr 1fr; }
.heatmap { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; padding: 14px; height: 204px; }
.heatmap span { background: #153b7a; border: 1px solid rgba(255,255,255,.02); }
.heatmap span:nth-child(3n) { background: #1ca87d; }
.heatmap span:nth-child(4n) { background: #b7ca35; }
.heatmap span:nth-child(5n) { background: #0f5aa8; }
.heatmap .selected { outline: 2px solid #fff; outline-offset: -4px; background: #28c98f; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 9px 11px; border-bottom: 1px solid #1a2130; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--dim); text-transform: uppercase; font-size: 10px; letter-spacing: .08em; font-weight: 500; }
td { color: #d4dcea; }
.empty { text-align: left; color: var(--muted); }
.good { color: var(--green); }
.bad { color: var(--red); }
.pill { display: inline-block; min-width: 42px; text-align: center; border-radius: 999px; padding: 2px 7px; background: #171f2d; color: var(--muted); }
.pill.buy { color: var(--green); background: rgba(24,201,155,.08); }
.pill.sell { color: var(--red); background: rgba(239,78,90,.08); }
.error { border: 1px solid rgba(239,78,90,.38); color: #ff8b95; background: rgba(239,78,90,.08); padding: 10px 12px; border-radius: 5px; margin-bottom: 10px; font-size: 12px; }
.hidden { display: none; }
footer { color: var(--dim); font-size: 11px; margin: 14px 0 4px; }

.axis-label {
  fill: rgba(188,199,216,.72);
  font-size: 10px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}
.crosshair line {
  stroke: rgba(238,243,251,.46);
  stroke-width: 1;
  stroke-dasharray: 3 5;
  pointer-events: none;
}
.chart-hit-area { cursor: crosshair; }
.chart-tooltip {
  position: fixed;
  z-index: 20;
  width: 210px;
  border: 1px solid rgba(122,136,158,.35);
  background: rgba(8,12,20,.86);
  backdrop-filter: blur(14px);
  color: #e4eaf4;
  border-radius: 7px;
  padding: 9px 10px;
  box-shadow: 0 16px 40px rgba(0,0,0,.48);
  pointer-events: none;
}
.chart-tooltip strong { display: block; color: #fff; font-size: 12px; margin-bottom: 5px; }
.chart-tooltip span { display: block; color: #b6c0cf; font-size: 11px; line-height: 1.45; font-variant-numeric: tabular-nums; }

@media (max-width: 1320px) {
  body { display: block; }
  .rail { width: 100%; min-height: auto; position: relative; border-right: 0; border-bottom: 1px solid var(--border); }
  .rail-status { position: static; display: flex; gap: 12px; padding: 10px 18px; }
  nav { display: flex; overflow-x: auto; }
  .terminal, .analytics-grid, .bottom-grid, .audit-grid { grid-template-columns: 1fr; }
  .config { position: relative; top: 0; max-height: none; }
  .metrics { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 760px) {
  .workspace { height: auto; flex-direction: column; padding: 8px; }
  .workspace-left, .workspace-right, .tabs { flex-wrap: wrap; }
  .tab, .workspace-menu { min-width: 0; flex: 1; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .donut-wrap { grid-template-columns: 1fr; }
  th, td { padding: 8px; font-size: 11px; }
}