:root {
  color-scheme: dark;
  --ink: #f4f0e8;
  --muted: #a9a59c;
  --dim: #6f6d67;
  --paper: #111210;
  --surface: #181a17;
  --surface-2: #20221e;
  --line: #34372f;
  --acid: #c8f25a;
  --cyan: #5adad1;
  --orange: #ff9d5c;
  --danger: #ff7067;
  --mono: "DM Mono", ui-monospace, monospace;
  --sans: "Manrope", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 0%, rgba(200, 242, 90, .055), transparent 34rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
}

button, input, select { font: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible, .control-actions a:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }

.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0 32px; }
.masthead { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; margin-bottom: 42px; }
.eyebrow, .kicker, .finding-index { margin: 0 0 10px; color: var(--acid); font: 500 11px/1.4 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 13px; max-width: 760px; font-size: clamp(38px, 6vw, 74px); line-height: .96; letter-spacing: -.055em; font-weight: 500; }
h2 { margin-bottom: 8px; font-size: clamp(21px, 3vw, 32px); line-height: 1.13; letter-spacing: -.035em; font-weight: 500; }
h3 { margin-bottom: 14px; font-size: 15px; font-weight: 600; }
.lede { max-width: 720px; margin-bottom: 0; color: var(--muted); font-size: 17px; line-height: 1.65; }
.status { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; color: var(--muted); font: 12px var(--mono); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 5px rgba(200, 242, 90, .08); }

.core-assumption { display: grid; grid-template-columns: minmax(240px, .7fr) minmax(420px, 1.3fr); gap: 48px; align-items: center; margin-bottom: 28px; padding: 22px 24px; border: 1px solid var(--line); border-left: 3px solid var(--acid); background: linear-gradient(105deg, rgba(200, 242, 90, .055), transparent 52%), var(--surface); }
.core-assumption .kicker { margin-bottom: 7px; }
.core-assumption h2 { margin: 0; font-size: clamp(18px, 2.2vw, 24px); }
.core-assumption > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.control-strip { display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 24px; padding: 22px 0; border-block: 1px solid var(--line); }
.control-strip label { display: grid; grid-template-columns: 1fr auto; gap: 10px 14px; color: var(--muted); font-size: 13px; }
.control-strip output { color: var(--ink); font: 12px var(--mono); }
.control-strip input { grid-column: 1 / -1; width: 100%; accent-color: var(--acid); cursor: pointer; }
.control-strip button, .control-strip .control-actions a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); color: var(--ink); padding: 0 16px; cursor: pointer; text-decoration: none; }
.control-strip button:hover, .control-strip .control-actions a:hover { border-color: var(--muted); background: var(--surface-2); }
.control-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; }
.control-actions a:last-child { color: var(--acid); }

.finding { padding: 50px 0 38px; max-width: 880px; }
.finding h2 { font-size: clamp(27px, 4.5vw, 48px); }
.finding p { margin: 14px 0 0; max-width: 760px; color: var(--muted); line-height: 1.65; }
.finding .finding-caution { color: var(--orange); font: 11px/1.5 var(--mono); }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.metrics article { padding: 22px 0; }
.metrics article + article { padding-left: 24px; border-left: 1px solid var(--line); }
.metrics span { display: block; margin-bottom: 9px; color: var(--muted); font-size: 12px; }
.metrics strong { font: 500 25px var(--mono); }

.plot-section, .lanes-section, .counterfactual-section, .robustness-section, .clock-section, .assumptions, .method-section { padding: 56px 0; border-bottom: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 28px; }
.section-heading h2 { margin-bottom: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font: 11px var(--mono); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend-line { display: inline-block; width: 24px; border-top: 2px solid; }
.legend-line.pressure { border-color: var(--acid); }
.legend-line.outflow { border-color: var(--cyan); border-top-style: dashed; }
.legend-line.immediate { border-color: var(--danger); }
.legend-line.next { border-color: var(--orange); border-top-style: dashed; }
.legend-line.delayed { border-color: var(--cyan); border-top-style: dashed; }
.legend-line.held { border-color: var(--acid); border-top-style: dotted; }
.chart { width: 100%; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .frame { stroke: var(--dim); stroke-width: 1; }
.chart .series { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.chart .series.pressure { stroke: var(--acid); }
.chart .series.outflow { stroke: var(--cyan); stroke-dasharray: 7 6; }
.chart .axis { fill: var(--muted); font: 11px var(--mono); }
.chart .axis-title { fill: var(--dim); font: 10px var(--mono); letter-spacing: .08em; }
.chart .divergence-band { fill: rgba(255, 157, 92, .09); }
.chart .retire-dot { fill: var(--paper); stroke: var(--acid); stroke-width: 3; }
.chart .finding-guide { stroke: var(--orange); stroke-width: 1; stroke-dasharray: 3 4; }
.chart .finding-dot { fill: var(--paper); stroke: var(--orange); stroke-width: 3; }
.chart .finding-label { fill: var(--orange); font: 10px var(--mono); letter-spacing: .06em; }
.axis-note { margin: 12px 0 0; color: var(--dim); font: 11px/1.5 var(--mono); }
.counterfactual-section { display: grid; grid-template-columns: minmax(260px, .75fr) minmax(520px, 1.5fr); gap: 56px; align-items: center; }
.counterfactual-copy > p:not(.kicker) { color: var(--muted); font-size: 13px; line-height: 1.65; }
.counterfactual-copy .counterfactual-result { margin-top: 28px; color: var(--ink); }
.counterfactual-result strong { display: block; margin-bottom: 4px; color: var(--acid); font: 500 34px var(--mono); }
.counterfactual-copy .counterfactual-footnote { color: var(--orange); font: 11px/1.5 var(--mono); }
.counterfactual-copy .counterfactual-values { color: var(--dim); font: 11px/1.55 var(--mono); }
.counterfactual-legend { justify-content: flex-end; margin-bottom: 14px; }
.counterfactual-chart .series.immediate { stroke: var(--danger); }
.counterfactual-chart .series.next { stroke: var(--orange); stroke-dasharray: 11 5; }
.counterfactual-chart .series.delayed { stroke: var(--cyan); stroke-dasharray: 7 6; }
.counterfactual-chart .series.held { stroke: var(--acid); stroke-dasharray: 2 6; }
.robustness-section { display: grid; grid-template-columns: minmax(260px, .75fr) minmax(520px, 1.5fr); gap: 56px; align-items: center; }
.robustness-copy > p:not(.kicker) { color: var(--muted); font-size: 13px; line-height: 1.65; }
.robustness-copy .robustness-note { margin-top: 24px; color: var(--orange); font: 11px/1.55 var(--mono); }
.heatmap-wrap { position: relative; padding-left: 28px; }
.heatmap { display: grid; grid-template-columns: 44px repeat(7, minmax(42px, 1fr)); gap: 5px; }
.heat-cell, .heat-axis { display: grid; place-items: center; min-height: 38px; font: 11px var(--mono); }
.heat-cell { border-radius: 2px; color: var(--ink); }
.heat-cell:focus-visible { outline: 2px solid var(--acid); outline-offset: 2px; }
.heat-axis { min-height: 28px; color: var(--dim); }
.heat-y { justify-content: end; padding-right: 7px; }
.heatmap-y-title { position: absolute; left: 0; top: 50%; transform: translate(-45%, -50%) rotate(-90deg); color: var(--dim); font: 10px var(--mono); letter-spacing: .08em; }
.heatmap-x-title { margin: 10px 0 0 50px; text-align: center; color: var(--dim); font: 10px var(--mono); letter-spacing: .08em; }
.heatmap-legend { display: flex; align-items: center; justify-content: flex-end; gap: 9px; margin-top: 16px; color: var(--dim); font: 10px var(--mono); }
.heatmap-legend i { width: 88px; height: 8px; background: linear-gradient(90deg, var(--surface), var(--orange)); }

.clock-intro { max-width: 470px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.clock-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin: 28px 0 38px; border-block: 1px solid var(--line); }
.clock-metrics article { padding: 22px 0; }
.clock-metrics article + article { padding-left: 24px; border-left: 1px solid var(--line); }
.clock-metrics strong, .clock-metrics span { display: block; }
.clock-metrics strong { margin-bottom: 8px; color: var(--acid); font: 500 25px var(--mono); }
.clock-metrics span { color: var(--muted); font-size: 12px; }
.condition-explorer { margin-bottom: 32px; padding: 26px; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(200, 242, 90, .035), transparent 55%), var(--surface); }
.condition-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 24px; }
.condition-heading h3 { margin-bottom: 0; font-size: 22px; }
.condition-heading > p { max-width: 480px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.condition-controls { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.condition-controls label { display: grid; grid-template-columns: 1fr auto; gap: 10px; color: var(--muted); font-size: 11px; }
.condition-controls select, .condition-controls input { grid-column: 1 / -1; width: 100%; }
.condition-controls select { min-height: 38px; padding: 0 9px; border: 1px solid var(--line); border-radius: 2px; background: var(--surface-2); color: var(--ink); }
.condition-controls input { accent-color: var(--acid); }
.condition-controls output { color: var(--ink); font: 11px var(--mono); }
.condition-result { display: grid; grid-template-columns: 190px 190px 1fr; align-items: center; gap: 22px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); }
.condition-result article span, .condition-result article strong { display: block; }
.condition-result article span { margin-bottom: 7px; color: var(--muted); font-size: 11px; }
.condition-result article strong { font: 500 25px var(--mono); }
.condition-result .positive { color: var(--acid); }
.condition-result .negative { color: var(--danger); }
.condition-result .neutral { color: var(--dim); }
.condition-result p { margin: 0; color: var(--ink); font-size: 13px; line-height: 1.55; }
.condition-note { margin: 14px 0 0; color: var(--dim); font: 11px/1.55 var(--mono); }
.study-tables { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; }
.study-tables article { min-width: 0; padding: 24px; border: 1px solid var(--line); background: var(--surface); }
.study-tables h3 { margin-bottom: 20px; }
.study-tables p, .clock-caution { margin: 18px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.table-scroll { overflow-x: auto; }
.study-tables table { width: 100%; border-collapse: collapse; white-space: nowrap; font: 11px var(--mono); }
.study-tables th, .study-tables td { padding: 10px 9px; border-bottom: 1px solid var(--line); text-align: right; }
.study-tables th:first-child { text-align: left; }
.study-tables thead th { color: var(--dim); font-weight: 400; }
.study-tables tbody th { color: var(--ink); font-weight: 400; }
.study-tables td { color: var(--muted); }
.study-tables td.positive { color: var(--acid); }
.study-tables td.negative { color: var(--danger); }
.study-tables td.neutral { color: var(--dim); }
.clock-caution { color: var(--orange); font-family: var(--mono); }
.accounting-audit, .defense-audit { margin-top: 32px; padding: 26px; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(255, 165, 82, .04), transparent 58%), var(--surface); }
.defense-audit { background: linear-gradient(135deg, rgba(87, 214, 199, .045), transparent 58%), var(--surface); }
.accounting-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 20px; }
.accounting-heading h3 { margin-bottom: 0; font-size: 22px; }
.accounting-heading > p { max-width: 520px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.accounting-audit table, .defense-audit table { width: 100%; border-collapse: collapse; white-space: nowrap; font: 11px var(--mono); }
.accounting-audit th, .accounting-audit td, .defense-audit th, .defense-audit td { padding: 11px 9px; border-bottom: 1px solid var(--line); text-align: right; }
.accounting-audit th:first-child, .defense-audit th:first-child { text-align: left; }
.accounting-audit thead th, .defense-audit thead th { color: var(--dim); font-weight: 400; }
.accounting-audit tbody th, .defense-audit tbody th { color: var(--ink); font-weight: 400; }
.accounting-audit td, .defense-audit td { color: var(--muted); }
.accounting-audit td.positive, .defense-audit td.positive { color: var(--acid); }
.accounting-audit td.negative, .defense-audit td.negative { color: var(--danger); }
.accounting-audit td.neutral, .defense-audit td.neutral { color: var(--dim); }
.defense-audit td small { color: var(--dim); font-size: 9px; }
.accounting-note { margin: 17px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.accounting-note strong { color: var(--orange); font-weight: 500; }

.lanes { border-top: 1px solid var(--line); }
.lane-context { max-width: 760px; margin: -12px 0 24px; color: var(--orange); font: 11px/1.55 var(--mono); }
.lane-row { display: grid; grid-template-columns: minmax(220px, 1fr) minmax(360px, 2.2fr) 110px; align-items: center; gap: 24px; min-height: 94px; border-bottom: 1px solid var(--line); }
.lane-label strong, .lane-result strong { display: block; font-size: 14px; font-weight: 600; }
.lane-label span, .lane-result span { color: var(--muted); font-size: 11px; line-height: 1.5; }
.lane-label small { display: block; margin-top: 7px; color: var(--dim); font: 10px/1.5 var(--mono); }
.lane-track { position: relative; height: 2px; background: var(--line); }
.lane-marker { position: absolute; top: 50%; display: grid; place-items: center; width: 25px; height: 25px; transform: translate(-50%, -50%); border-radius: 50%; color: var(--paper); font: 500 10px var(--mono); cursor: help; }
.lane-marker.retire { background: var(--acid); }
.lane-marker.sell { top: calc(50% + 28px); background: var(--cyan); }
.lane-marker:hover::after { content: attr(aria-label); position: absolute; z-index: 2; bottom: 32px; left: 50%; width: max-content; max-width: 220px; transform: translateX(-50%); padding: 8px 10px; border: 1px solid var(--line); background: var(--surface-2); color: var(--ink); font: 11px/1.45 var(--mono); }
.no-action { position: absolute; left: 50%; top: -8px; transform: translateX(-50%); color: var(--dim); font: 11px var(--mono); }
.lane-result { text-align: right; }
.lane-result strong { font: 500 18px var(--mono); }
.behavior-rules { margin-top: 20px; color: var(--muted); font-size: 12px; }
.behavior-rules summary { width: fit-content; cursor: pointer; color: var(--ink); font: 12px var(--mono); }
.behavior-rules > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 20px; }
.behavior-rules article { padding-top: 14px; border-top: 1px solid var(--line); }
.behavior-rules strong { color: var(--ink); }
.behavior-rules p { margin: 7px 0 0; color: var(--muted); line-height: 1.6; }

.assumptions { display: grid; grid-template-columns: .8fr 1.5fr; gap: 70px; }
.assumption-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.assumption-grid article:first-child h3 { color: var(--acid); }
.assumption-grid article:last-child h3 { color: var(--orange); }
.assumption-grid ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.method-section { display: grid; grid-template-columns: .8fr 1.5fr; gap: 70px; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.method-grid article { padding-top: 16px; border-top: 1px solid var(--line); }
.method-grid article:first-child h3 { color: var(--acid); }
.method-grid article:nth-child(2) h3 { color: var(--orange); }
.method-grid article:last-child h3 { color: var(--cyan); }
.method-grid ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 12px; line-height: 1.7; }
footer { display: flex; justify-content: space-between; gap: 24px; padding-top: 26px; color: var(--dim); font: 11px/1.5 var(--mono); }
footer p { margin: 0; }
footer a { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 820px) {
  .shell { width: min(100% - 28px, 720px); padding-top: 30px; }
  .masthead, .section-heading { align-items: flex-start; flex-direction: column; }
  .core-assumption { grid-template-columns: 1fr; gap: 16px; }
  .control-strip { grid-template-columns: 1fr 1fr; }
  .control-strip button, .control-strip .control-actions a { width: 100%; }
  .assumptions, .method-section { grid-template-columns: 1fr; gap: 28px; }
  .counterfactual-section { grid-template-columns: 1fr; gap: 30px; }
  .robustness-section { grid-template-columns: 1fr; gap: 30px; }
  .study-tables { grid-template-columns: 1fr; }
  .condition-controls { grid-template-columns: 1fr 1fr; }
  .condition-result { grid-template-columns: 1fr 1fr; }
  .condition-result p { grid-column: 1 / -1; }
  .counterfactual-legend { justify-content: flex-start; }
  .lane-row { grid-template-columns: 180px 1fr 90px; gap: 14px; }
  .method-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 580px) {
  .control-strip, .metrics, .clock-metrics, .assumption-grid { grid-template-columns: 1fr; }
  .control-actions { flex-direction: column; }
  .behavior-rules > div { grid-template-columns: 1fr; }
  .metrics article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .clock-metrics article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .condition-heading { align-items: flex-start; flex-direction: column; }
  .accounting-heading { align-items: flex-start; flex-direction: column; }
  .condition-controls, .condition-result { grid-template-columns: 1fr; }
  .condition-result p { grid-column: auto; }
  .lane-row { grid-template-columns: 1fr; gap: 22px; padding: 22px 0; }
  .lane-track { margin: 8px 12px 18px; }
  .lane-result { text-align: left; }
  footer { flex-direction: column; }
  .heatmap { grid-template-columns: 38px repeat(7, minmax(30px, 1fr)); gap: 3px; }
  .heat-cell, .heat-axis { min-height: 34px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}