:root {
  color-scheme: dark;
  --bg: #07090b;
  --panel: rgba(15, 18, 20, 0.88);
  --panel-soft: rgba(255, 248, 234, 0.045);
  --ink: #fff8ea;
  --muted: rgba(255, 248, 234, 0.58);
  --line: rgba(255, 248, 234, 0.13);
  --teal: #69d5c7;
  --amber: #f2b967;
  --red: #d66a5e;
  --green: #65d59a;
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 12%, rgba(105, 213, 199, 0.12), transparent 30%),
    radial-gradient(circle at 10% 8%, rgba(242, 185, 103, 0.1), transparent 26%),
    var(--bg);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.terminal-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.side-panel {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-right: 1px solid var(--line);
  background: rgba(7, 9, 11, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.brand span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--amber);
  color: #080a0b;
  font-weight: 900;
}

.brand strong {
  font-size: 18px;
}

.side-nav {
  display: grid;
  gap: 8px;
  margin-top: 24px;
}

.side-nav a {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  font-weight: 780;
}

.side-nav a:hover,
.side-nav a.active {
  color: var(--ink);
  background: rgba(255, 248, 234, 0.07);
  border-color: var(--line);
}

.data-card {
  margin-top: auto;
  display: flex;
  gap: 12px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.045);
}

.live-dot {
  width: 10px;
  height: 10px;
  margin-top: 4px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(101, 213, 154, 0.13);
}

.data-card strong,
.data-card small {
  display: block;
}

.data-card small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.engine-page {
  min-width: 0;
  padding: 24px;
}

.engine-header {
  min-height: 148px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(105, 213, 199, 0.12), transparent 34%),
    linear-gradient(90deg, rgba(255, 248, 234, 0.06), rgba(255, 248, 234, 0.02));
}

.eyebrow {
  margin: 0;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 9px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: 0.9;
}

h2 {
  margin-top: 6px;
  font-size: 22px;
  line-height: 1.1;
}

.home-link,
.run-button,
#export-button,
#manual-add {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 248, 234, 0.06);
  color: var(--ink);
  font-weight: 850;
}

.home-link:hover,
#export-button:hover,
#manual-add:hover {
  border-color: rgba(105, 213, 199, 0.4);
}

.control-grid,
.result-grid,
.insight-grid,
.analysis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(360px, 0.8fr);
  gap: 16px;
  margin-top: 16px;
}

.panel,
.metric-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.26);
}

.panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input,
select {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  color: var(--ink);
  color-scheme: dark;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  background-color: rgba(255, 248, 234, 0.055);
}

input:focus,
select:focus {
  border-color: rgba(105, 213, 199, 0.58);
  box-shadow: 0 0 0 3px rgba(105, 213, 199, 0.1);
}

select option {
  color: var(--ink);
  background: #15191a;
}

select option:checked {
  color: #080a0b;
  background: var(--amber);
}

.search-results {
  display: grid;
  gap: 8px;
  min-height: 52px;
  margin-top: 10px;
}

.search-result {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.04);
}

.search-result strong,
.search-result small {
  display: block;
}

.search-result strong {
  color: var(--teal);
}

.search-result small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.search-result button {
  min-height: 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(242, 185, 103, 0.5);
  background: rgba(242, 185, 103, 0.12);
  color: var(--ink);
  font-weight: 850;
}

.asset-table-wrap,
.table-scroll {
  overflow-x: auto;
}

.asset-table-wrap {
  margin-top: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  font-size: 13px;
  white-space: nowrap;
}

th:first-child,
td:first-child,
th:nth-child(2),
td:nth-child(2) {
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.asset-table input {
  height: 36px;
}

.ticker-input {
  max-width: 110px;
}

.weight-input {
  max-width: 86px;
  text-align: right;
}

.remove-button {
  width: 34px;
  height: 34px;
  border: 1px solid rgba(214, 106, 94, 0.38);
  border-radius: var(--radius);
  background: rgba(214, 106, 94, 0.08);
  color: var(--red);
  font-weight: 900;
}

.weight-state {
  margin-top: 12px;
  color: var(--green);
  font-weight: 900;
}

.weight-state.invalid {
  color: var(--red);
}

.settings-form {
  display: grid;
  gap: 12px;
}

.mode-switch {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.04);
}

.mode-switch button {
  height: 38px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  font-weight: 900;
}

.mode-switch button.active {
  color: #080a0b;
  background: var(--amber);
}

label {
  display: grid;
  gap: 6px;
}

label span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.run-button {
  margin-top: 6px;
  min-height: 48px;
  color: #080a0b;
  background: linear-gradient(135deg, #ffd58c, var(--amber));
  border-color: rgba(255, 213, 140, 0.7);
}

.run-button:disabled {
  cursor: progress;
  opacity: 0.68;
}

.form-message {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.metric-grid article {
  min-height: 128px;
  padding: 17px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 3px solid var(--teal);
}

.metric-grid article:nth-child(2) {
  border-top-color: var(--amber);
}

.metric-grid article:nth-child(3) {
  border-top-color: var(--green);
}

.metric-grid article:nth-child(4) {
  border-top-color: #8ba0ff;
}

.metric-grid article:nth-child(5) {
  border-top-color: var(--amber);
}

.metric-grid article:nth-child(6) {
  border-top-color: var(--red);
}

.metric-grid article:nth-child(7) {
  border-top-color: #c994e8;
}

.metric-grid article:nth-child(8) {
  border-top-color: var(--teal);
}

.metric-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.metric-grid strong {
  margin-top: 13px;
  font-size: clamp(25px, 3vw, 34px);
}

.metric-grid small {
  color: var(--muted);
}

.chart-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chart-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 22px;
  height: 3px;
  display: inline-block;
  border-radius: 99px;
}

.legend-dot.portfolio {
  background: var(--teal);
}

.legend-dot.invested {
  background: rgba(255, 248, 234, 0.45);
}

.legend-dot.benchmark {
  background: var(--amber);
}

canvas {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 248, 234, 0.055), rgba(255, 248, 234, 0.02)),
    rgba(7, 9, 11, 0.68);
}

.chart-stage {
  position: relative;
}

.chart-tooltip {
  position: absolute;
  z-index: 5;
  min-width: 178px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 248, 234, 0.18);
  border-radius: var(--radius);
  background: rgba(7, 9, 11, 0.92);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.34);
  color: var(--ink);
  font-size: 12px;
  line-height: 1.45;
  pointer-events: none;
  backdrop-filter: blur(14px);
}

.chart-tooltip strong,
.chart-tooltip span {
  display: block;
}

.chart-tooltip span {
  color: var(--muted);
}

#equity-chart {
  height: 430px;
}

#allocation-chart {
  height: 260px;
}

#drawdown-chart,
#volatility-chart {
  height: 320px;
}

.correlation-matrix {
  display: grid;
  gap: 6px;
  overflow-x: auto;
}

.correlation-row {
  display: grid;
  gap: 6px;
}

.correlation-cell {
  min-width: 64px;
  min-height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 248, 234, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.04);
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    filter 180ms ease;
}

.correlation-cell.header {
  color: var(--muted);
  background: rgba(255, 248, 234, 0.035);
}

.correlation-cell.value:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 248, 234, 0.34);
  filter: brightness(1.18);
}

.allocation-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.allocation-item {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 9px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.color-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.table-panel {
  margin-top: 16px;
}

.table-panel table,
.returns-panel table {
  min-width: 1040px;
}

.returns-panel,
.heatmap-panel {
  margin-top: 16px;
}

.monthly-heatmap {
  display: grid;
  gap: 6px;
  overflow-x: auto;
}

.heatmap-row {
  display: grid;
  grid-template-columns: 64px repeat(12, minmax(58px, 1fr));
  gap: 6px;
}

.heatmap-cell {
  min-height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 248, 234, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.04);
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    filter 180ms ease;
}

.heatmap-cell.header,
.heatmap-cell.year {
  color: var(--muted);
  background: rgba(255, 248, 234, 0.035);
}

.heatmap-cell.value:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 248, 234, 0.34);
  filter: brightness(1.14);
}

.stat-list {
  display: grid;
  gap: 8px;
}

.stat-row {
  min-height: 44px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 248, 234, 0.038);
}

.stat-row span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.stat-row strong {
  font-size: 14px;
  text-align: right;
}

.empty-state {
  height: 92px;
  text-align: center;
  color: var(--muted);
}

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

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

@media (max-width: 1120px) {
  .terminal-shell {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
    height: auto;
  }

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

  .data-card {
    margin-top: 18px;
  }

  .control-grid,
  .result-grid,
  .insight-grid,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  .engine-page,
  .side-panel {
    padding: 12px;
  }

  .engine-header {
    flex-direction: column;
    padding: 20px;
  }

  .search-box,
  .metric-grid,
  .side-nav {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 46px;
  }

  #equity-chart {
    height: 330px;
  }

  #drawdown-chart,
  #volatility-chart {
    height: 260px;
  }

  .panel-head,
  .chart-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .chart-legend {
    justify-content: flex-start;
  }
}