:root {
  --bg: #f7f8f5;
  --surface: #ffffff;
  --surface-muted: #eef3ef;
  --ink: #17211c;
  --muted: #5d6b64;
  --line: #d8e0da;
  --accent: #285c4d;
  --accent-dark: #173c34;
  --accent-soft: #dfeae4;
  --gold: #a6752d;
  --shadow: 0 16px 42px rgba(23, 33, 28, 0.09);
  --container-max: 1180px;
  --container-pad: 24px;
  --header-height: 56px;
  --section-block-padding: 36px;
  --anchor-gap: 14px;
  --nav-offset: max(0px, calc(var(--header-height) + var(--anchor-gap) - var(--section-block-padding)));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-offset);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.nav,
.hero,
.section,
.footer {
  width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
  margin-right: auto;
  margin-left: auto;
}

section[id],
main[id] {
  scroll-margin-top: var(--nav-offset);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 248, 245, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--accent-dark);
}

.hero {
  padding: 24px 0 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(210px, clamp(210px, 22vw, 260px));
  gap: 22px;
  align-items: center;
}

.hero-content {
  width: 100%;
  max-width: none;
}

.eyebrow,
.panel-label {
  margin: 0 0 12px;
  color: var(--gold);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 4px;
  color: var(--accent-dark);
  font-size: clamp(2.45rem, 5.8vw, 4.4rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: clamp(1.35rem, 2.45vw, 2rem);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 3px;
  color: var(--accent-dark);
  font-size: 1rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.subtitle {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: clamp(1.04rem, 2.2vw, 1.55rem);
  line-height: 1.12;
}

.tagline {
  max-width: min(100%, 92ch);
  margin-bottom: 12px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.94rem;
  line-height: 1.4;
}

.authors {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.86rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent-dark);
  background: transparent;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.button:hover,
.button:focus {
  background: var(--accent-soft);
}

.button.primary {
  color: #ffffff;
  background: var(--accent);
}

.button.primary:hover,
.button.primary:focus {
  background: var(--accent-dark);
}

.hero-panel {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: none;
}

.hero-panel p {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  line-height: 1.35;
  margin-bottom: 0;
}

.math-callout {
  color: var(--accent-dark);
  border: 1px solid var(--line);
  background: var(--surface-muted);
  font-family: "Times New Roman", Georgia, serif;
  font-weight: 700;
  text-align: center;
}

.math-callout {
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 1rem;
}

.section {
  padding: var(--section-block-padding) 0;
  border-top: 1px solid var(--line);
}

.section.compact {
  width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
}

.section-heading {
  width: 100%;
  max-width: 1000px;
}

.lead {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
  max-width: min(100%, 1000px);
  line-height: 1.35;
  margin-bottom: 0;
}

.demo-section {
  padding-top: 18px;
  padding-bottom: 32px;
}

.demo-section .section-heading {
  max-width: none;
}

.demo-shell {
  margin-top: 12px;
}

.tab-bar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}

.tab-list {
  min-width: 0;
  display: flex;
  flex: 1 1 auto;
  gap: 4px;
  overflow-x: auto;
}

.tab-group {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: stretch;
}

.demo-tab,
.tab-add-button {
  min-height: 28px;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  cursor: pointer;
}

.demo-tab {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 7px 0 9px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.56);
}

.tab-group.has-close .demo-tab {
  border-right: 0;
  border-radius: 6px 0 0 0;
}

.demo-tab.is-active {
  position: relative;
  bottom: -1px;
  color: var(--accent-dark);
  background: #ffffff;
  font-weight: 700;
}

.tab-close {
  width: 24px;
  min-height: 28px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-left: 0;
  border-radius: 0 6px 0 0;
  color: inherit;
  background: rgba(255, 255, 255, 0.56);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  line-height: 1;
  cursor: pointer;
}

.tab-close:hover,
.tab-close:focus {
  background: rgba(23, 33, 28, 0.08);
}

.tab-group.is-active .tab-close {
  position: relative;
  bottom: -1px;
  color: var(--accent-dark);
  background: #ffffff;
  font-weight: 700;
}

.tab-add-button {
  flex: 0 0 auto;
  padding: 0 9px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  font-weight: 700;
}

.demo-controls {
  display: grid;
  gap: 0;
  margin-bottom: 10px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 8px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  background: rgba(255, 255, 255, 0.74);
}

.demo-control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(142px, 1fr));
  gap: 8px 10px;
  align-items: end;
}

.control-group {
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: minmax(18px, auto) 30px;
  gap: 2px 6px;
  align-items: center;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  line-height: 1.18;
}

.visualization-control {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0;
  border: 0;
  grid-template-rows: minmax(18px, auto) 30px auto;
}

.visualization-control legend {
  grid-column: 1 / -1;
  padding: 0;
}

.segmented-control {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 30px;
  border: 1px solid #b9c7bf;
  border-radius: 6px;
  overflow: hidden;
  background: #ffffff;
}

.segmented-control label {
  min-width: 0;
  display: grid;
}

.segmented-control input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented-control span {
  display: grid;
  place-items: center;
  min-height: 28px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
}

.segmented-control label + label span {
  border-left: 1px solid var(--line);
}

.segmented-control input:checked + span {
  color: #ffffff;
  background: var(--accent);
}

.segmented-control input:focus-visible + span {
  outline: 2px solid rgba(40, 92, 77, 0.34);
  outline-offset: -2px;
}

.segmented-control input:disabled + span {
  color: rgba(93, 107, 100, 0.74);
  background: rgba(238, 243, 239, 0.62);
  cursor: not-allowed;
}

.control-note {
  grid-column: 1 / -1;
  margin: 1px 0 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.7rem;
  line-height: 1.18;
}

#demo-vertex-control[hidden] {
  display: none;
}

.control-label-row {
  position: relative;
  min-width: 0;
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  gap: 4px;
  overflow: visible;
}

.control-label-row label,
.control-text-label {
  align-self: end;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.15;
  white-space: normal;
}

.control-group select,
.control-group input[type="range"] {
  grid-column: 1 / -1;
}

.control-group:has(input[type="range"]) {
  grid-template-columns: minmax(0, 1fr) max-content;
  column-gap: 4px;
  align-items: center;
}

.control-group:has(input[type="range"]) input[type="range"] {
  grid-column: 1;
  grid-row: 2;
}

.control-group:has(input[type="range"]) output {
  grid-column: 2;
  grid-row: 2;
  min-width: 2.4ch;
  min-height: 30px;
  display: flex;
  align-items: center;
  padding-left: 0;
  font-variant-numeric: tabular-nums;
  justify-self: start;
  text-align: left;
}

.control-button {
  grid-row: 2;
  width: 100%;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: #ffffff;
  background: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.control-button:hover,
.control-button:focus {
  background: var(--accent-dark);
}

.control-group select {
  width: 100%;
  min-width: 0;
  min-height: 30px;
  padding: 0 24px 0 8px;
  border: 1px solid #b9c7bf;
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
}

.control-group output {
  min-width: 2.4ch;
  color: var(--gold);
  font-weight: 700;
  text-align: left;
}

.control-action {
  grid-template-columns: 1fr;
}

.demo-control-grid:has(#demo-vertex-control[hidden]) > .control-action {
  grid-column: span 2;
}

.control-tooltip {
  position: relative;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  overflow: visible;
}

.tooltip-trigger {
  width: 16px;
  height: 16px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(40, 92, 77, 0.5);
  border-radius: 50%;
  color: var(--accent-dark);
  background: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.66rem;
  font-weight: 800;
  line-height: 1;
  cursor: help;
}

.tooltip-trigger:hover,
.tooltip-trigger:focus {
  border-color: var(--accent-dark);
  background: var(--accent-soft);
  outline: none;
}

.tooltip-trigger:focus-visible {
  box-shadow: 0 0 0 2px rgba(40, 92, 77, 0.24);
}

.tooltip-popover {
  --tooltip-x: -50%;
  position: absolute;
  z-index: 20;
  bottom: calc(100% + 7px);
  left: 50%;
  right: auto;
  width: min(260px, calc(100vw - 32px));
  max-width: calc(100vw - 32px);
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(23, 33, 28, 0.16);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translate(var(--tooltip-x), 2px);
  transition: opacity 120ms ease, transform 120ms ease;
}

.demo-control-grid > .control-group:first-child .tooltip-popover {
  --tooltip-x: 0;
  left: 0;
  right: auto;
}

.demo-control-grid > .control-group:last-child .tooltip-popover {
  --tooltip-x: 0;
  right: 0;
  left: auto;
}

.tooltip-trigger:hover + .tooltip-popover,
.tooltip-trigger:focus + .tooltip-popover,
.tooltip-trigger:focus-visible + .tooltip-popover,
.control-tooltip.is-open .tooltip-popover {
  opacity: 1;
  transform: translate(var(--tooltip-x), 0);
}

.control-tooltip.is-suppressed .tooltip-popover {
  opacity: 0;
  pointer-events: none;
  transform: translate(var(--tooltip-x), 2px);
}

.control-group input[type="range"] {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.objective-note {
  margin: 6px 0 0;
  max-width: 100%;
  padding: 6px 9px 7px;
  overflow-x: auto;
  border: 1px solid rgba(40, 92, 77, 0.18);
  border-left: 3px solid var(--gold);
  border-radius: 7px;
  background: rgba(238, 243, 239, 0.68);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  line-height: 1.22;
  overflow-wrap: anywhere;
}

.formulation-block {
  display: grid;
  gap: 2px;
  align-content: start;
}

.objective-note h3 {
  margin: 0;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.15;
  text-transform: uppercase;
}

.formulation-body {
  min-width: 0;
  max-width: 100%;
  color: var(--muted);
  line-height: 1.2;
}

.formulation-body--stable-summary {
  display: grid;
  gap: 2px;
}

.formulation-summary {
  display: grid;
  gap: 2px;
  min-height: calc(2 * 1.2em + 2px);
  line-height: 1.2;
}

.formulation-summary-row {
  min-width: 0;
}

.formulation-summary-values {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 16px;
  align-items: baseline;
}

.formulation-summary-value {
  white-space: nowrap;
}

.formulation-summary-number {
  display: inline-block;
  min-width: 16.5ch;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.formulation-summary-values .formulation-summary-value:nth-child(2) .formulation-summary-number {
  min-width: 23.5ch;
}

.formulation-body mjx-container[jax="CHTML"][display="true"] {
  margin: 0.08em 0 0.14em;
  overflow-x: auto;
  overflow-y: hidden;
  color: var(--ink);
  font-size: 0.94em;
  line-height: 1.08;
}

.formulation-body mjx-container[jax="CHTML"]:not([display="true"]) {
  color: var(--ink);
}

.q-controls {
  margin-top: 7px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
}

.q-controls[hidden] {
  display: none;
}

.q-controls summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  cursor: pointer;
  color: var(--accent-dark);
  font-weight: 700;
}

.q-controls summary::marker {
  color: var(--muted);
}

.q-controls summary strong {
  padding: 2px 6px;
  border: 1px solid rgba(40, 92, 77, 0.22);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.68rem;
}

.q-control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, max-content));
  gap: 7px 10px;
  align-items: end;
  margin-top: 5px;
}

.q-control-grid label {
  display: grid;
  gap: 2px;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 700;
}

.q-control-grid input {
  width: 86px;
  min-height: 30px;
  padding: 0 7px;
  border: 1px solid #b9c7bf;
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  font: inherit;
  font-weight: 400;
}

.q-reset-button {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent-dark);
  background: transparent;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  cursor: pointer;
}

.q-reset-button:hover,
.q-reset-button:focus {
  background: var(--accent-soft);
}

.q-status {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.25;
}

.demo-grid {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(230px, 1fr) minmax(220px, 0.78fr);
  gap: 10px;
  align-items: stretch;
}

.demo-panel {
  min-width: 0;
  min-height: 392px;
  display: flex;
  flex-direction: column;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: none;
}

.demo-panel-heading {
  min-height: 34px;
  margin-bottom: 5px;
}

.demo-panel-heading h3 {
  margin-bottom: 2px;
}

.demo-panel-heading p,
.demo-legend,
.risk-explainer,
.demo-note {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  line-height: 1.25;
}

.demo-panel-heading p,
.risk-explainer {
  margin-bottom: 0;
}

.demo-panel canvas {
  flex: 0 0 auto;
  display: block;
  width: min(100%, 300px);
  max-width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  margin: 0 auto;
  border: 1px solid #d2dcd5;
  border-radius: 6px;
  background: #fbfcfa;
}

#decision-canvas {
  cursor: default;
  touch-action: none;
}

#decision-canvas[hidden] {
  display: none;
}

#decision-canvas.is-binary-mode {
  cursor: pointer;
}

#decision-canvas.is-vertex-select-mode {
  cursor: pointer;
}

#decision-canvas.is-direct-manipulation {
  cursor: grab;
}

#decision-canvas.is-direct-manipulation.is-dragging {
  cursor: grabbing;
}

.linear3d-weights {
  display: grid;
  gap: 5px;
  width: min(100%, 300px);
  margin: 5px auto 0;
  padding: 6px 7px;
  border: 1px solid rgba(40, 92, 77, 0.18);
  border-radius: 6px;
  background: rgba(238, 243, 239, 0.5);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
}

.linear3d-weights[hidden] {
  display: none;
}

.linear3d-weights-heading {
  display: grid;
  gap: 1px;
}

.linear3d-weights-heading h4 {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.76rem;
  line-height: 1.15;
}

.linear3d-weights-heading p,
.linear3d-weight-formula,
.linear3d-weight-coordinate {
  margin: 0;
  font-size: 0.7rem;
  line-height: 1.15;
}

.linear3d-weight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px 8px;
}

.linear3d-weight-control {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: 1px 5px;
  align-items: center;
  color: var(--accent-dark);
  font-size: 0.7rem;
  font-weight: 700;
}

.linear3d-weight-control span {
  grid-column: 1 / -1;
}

.linear3d-weight-control input {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.linear3d-weight-control output {
  min-width: 3.1ch;
  color: #8b4d1e;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.linear3d-weight-coordinate {
  color: #8b4d1e;
  font-weight: 700;
}

.knapsack4d-ui {
  display: grid;
  gap: 8px;
  align-content: start;
  width: min(100%, 300px);
  min-height: 300px;
  margin: 0 auto;
  padding: 10px;
  border: 1px solid #d2dcd5;
  border-radius: 6px;
  background: #fbfcfa;
}

.knapsack4d-ui[hidden] {
  display: none;
}

.knapsack4d-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  justify-content: space-between;
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
}

.knapsack4d-summary strong {
  color: #8b4d1e;
  font-size: 0.9rem;
}

.knapsack4d-items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.knapsack4d-item {
  min-height: 74px;
  display: grid;
  gap: 3px;
  justify-items: start;
  padding: 8px;
  border: 1px solid rgba(40, 92, 77, 0.28);
  border-radius: 7px;
  background: #ffffff;
  color: var(--accent-dark);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.knapsack4d-item:hover,
.knapsack4d-item:focus {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.knapsack4d-item.is-selected {
  border-color: rgba(178, 106, 44, 0.64);
  background: rgba(178, 106, 44, 0.1);
  color: #8b4d1e;
}

.knapsack4d-item:disabled {
  border-color: rgba(93, 107, 100, 0.24);
  background: rgba(238, 243, 239, 0.58);
  color: rgba(93, 107, 100, 0.78);
  cursor: not-allowed;
}

.knapsack4d-item-name,
.knapsack4d-item-state {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  line-height: 1.05;
}

.knapsack4d-item-name {
  font-size: 0.78rem;
}

.knapsack4d-item-state,
.knapsack4d-item-weight {
  font-size: 0.72rem;
}

.knapsack4d-status {
  margin: 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  line-height: 1.25;
}

#outcome-canvas {
  cursor: crosshair;
}

#outcome-canvas.is-3d-mode {
  cursor: grab;
  touch-action: none;
}

#outcome-canvas.is-3d-mode:active {
  cursor: grabbing;
}

#outcome-canvas:focus-visible {
  outline: 2px solid rgba(40, 92, 77, 0.34);
  outline-offset: 3px;
}

.demo-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  align-items: center;
  margin-top: 0;
  padding-top: 6px;
}

#decision-legend {
  margin-top: auto;
}

#decision-legend[hidden] {
  display: none;
}

.demo-legend span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  display: inline-block;
  border-radius: 50%;
}

.legend-dot.selected {
  background: #b26a2c;
  box-shadow: 0 0 0 2px rgba(178, 106, 44, 0.2);
}

.legend-dot.vertex {
  background: #37413d;
}

.legend-dot.binary-feasible {
  background: #285c4d;
}

.legend-dot.binary-infeasible {
  border: 1px solid rgba(93, 107, 100, 0.72);
  background: transparent;
}

.legend-dot.inside {
  background: #285c4d;
}

.legend-dot.outside {
  background: #b84d3f;
}

.legend-swatch {
  width: 14px;
  height: 8px;
  display: inline-block;
  border: 1px solid rgba(55, 105, 129, 0.32);
  border-radius: 2px;
}

.legend-swatch.feasible {
  background: rgba(103, 112, 108, 0.26);
  border-color: #1f2421;
}

.legend-swatch.distribution {
  background: rgba(47, 120, 200, 0.28);
  border-color: rgba(47, 120, 200, 0.74);
}

.legend-swatch.inverse {
  background: rgba(126, 143, 151, 0.18);
  border-color: rgba(83, 102, 111, 0.72);
}

.legend-swatch.volume {
  background: rgba(178, 106, 44, 0.16);
  border-color: rgba(178, 106, 44, 0.66);
}

.demo-shell:not([data-visualization-mode="3d"]) .demo-legend span:has(.legend-swatch.volume) {
  display: none;
}

.outcome-note {
  margin: 6px 0 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  line-height: 1.25;
}

.risk-panel {
  grid-column: auto;
  display: flex;
  flex-direction: column;
  gap: 7px;
  align-items: stretch;
}

.risk-panel .demo-panel-heading {
  min-height: 0;
  margin-bottom: 0;
}

.risk-number {
  min-height: 54px;
  display: grid;
  align-content: center;
  justify-items: start;
  padding: 10px;
  border: 1px solid rgba(40, 92, 77, 0.22);
  border-radius: 8px;
  background: var(--surface-muted);
}

.risk-true {
  display: grid;
  gap: 3px;
  align-content: center;
  min-height: 54px;
  padding: 10px;
  border: 1px solid rgba(178, 106, 44, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.18;
}

.risk-true strong {
  color: var(--accent-dark);
  font-size: 0.74rem;
}

.risk-true span {
  color: #8b4d1e;
  font-size: clamp(1.65rem, 3.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1;
}

.risk-number span {
  color: var(--accent-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(1.65rem, 3.4vw, 2.25rem);
  font-weight: 800;
  line-height: 0.95;
}

.risk-number small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.76rem;
}

.risk-bars {
  display: grid;
  gap: 4px;
  width: 100%;
  overflow: visible;
  padding-right: 0;
}

.risk-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px;
  gap: 4px 6px;
  align-items: center;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
}

.risk-label {
  color: var(--accent-dark);
  font-weight: 700;
}

.risk-track {
  grid-column: 1 / -1;
  display: block;
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(40, 92, 77, 0.12);
}

.risk-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.risk-row.is-selected .risk-fill {
  background: #b26a2c;
}

.risk-row.is-selected .risk-label {
  color: #8b4d1e;
}

.risk-boundary-summary {
  padding: 5px 7px;
  border: 1px solid rgba(40, 92, 77, 0.14);
  border-radius: 6px;
  background: rgba(238, 243, 239, 0.72);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.25;
}

.risk-row-value {
  color: var(--accent-dark);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.risk-explainer {
  margin-top: 2px;
  max-width: 680px;
}

.demo-note {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-left: 3px solid var(--gold);
  background: rgba(255, 255, 255, 0.62);
}

.code-section,
.citation {
  padding-top: 44px;
  padding-bottom: 44px;
}

.code-section .section-heading,
.citation .section-heading,
.code-section .lead,
.citation pre {
  max-width: min(100%, 1040px);
}

.code-section .lead {
  margin-bottom: 18px;
  font-size: 0.98rem;
  line-height: 1.5;
}

.code-button {
  min-height: 40px;
  padding: 0 18px;
  font-size: 0.9rem;
}

.citation pre {
  overflow-x: auto;
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #13211b;
  color: #f5f2e8;
  font-size: 0.95rem;
  line-height: 1.55;
}

.footer {
  padding: 30px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.92rem;
}

.footer p {
  margin: 0;
}

.footer-credit {
  margin-top: 8px;
  font-size: 0.82rem;
  line-height: 1.4;
}

.footer-credit a {
  color: var(--accent-dark);
  text-decoration-color: rgba(23, 60, 52, 0.42);
  text-underline-offset: 3px;
}

.footer-credit a:hover,
.footer-credit a:focus {
  color: var(--accent);
  text-decoration-color: currentColor;
}

@media (max-width: 1080px) {
  .demo-controls {
    grid-template-columns: 1fr;
  }

  .demo-control-grid {
    grid-template-columns: repeat(4, minmax(150px, 1fr));
  }

  .demo-control-grid > .control-group .tooltip-popover {
    --tooltip-x: -50%;
    right: auto;
    left: 50%;
  }

  .demo-control-grid > .control-group:nth-child(4n+1) .tooltip-popover {
    --tooltip-x: 0;
    right: auto;
    left: 0;
  }

  .demo-control-grid > .control-group:nth-child(4n) .tooltip-popover,
  .demo-control-grid > .control-group:nth-child(8) .tooltip-popover {
    --tooltip-x: 0;
    right: 0;
    left: auto;
  }

  .demo-control-grid:has(#demo-vertex-control[hidden]) > .control-group:has(#demo-k) .tooltip-popover {
    --tooltip-x: 0;
    right: 0;
    left: auto;
  }

  .demo-grid {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
  }

  .risk-panel {
    grid-column: 1 / -1;
  }

  .risk-row {
    grid-template-columns: minmax(142px, 0.28fr) minmax(0, 1fr) 52px;
  }

  .risk-track {
    grid-column: auto;
  }
}

@media (max-width: 680px) {
  .demo-control-grid {
    grid-template-columns: 1fr;
  }

  .q-control-grid {
    grid-template-columns: 1fr;
  }

  .q-control-grid input,
  .q-reset-button {
    width: 100%;
  }

  .tab-bar {
    align-items: stretch;
    flex-direction: column;
    border-bottom: 0;
  }

  .tab-list {
    border-bottom: 1px solid var(--line);
  }

  .tab-add-button {
    align-self: flex-start;
    border-bottom: 1px solid var(--line);
    border-radius: 6px;
  }

  .control-group {
    min-width: 0;
  }

  .control-action {
    grid-template-rows: 30px;
  }

  .control-action .control-button {
    grid-row: 1;
  }

  .demo-control-grid:has(#demo-vertex-control[hidden]) > .control-action {
    grid-column: auto;
  }

  .control-tooltip {
    position: static;
  }

  .demo-control-grid > .control-group .tooltip-popover,
  .demo-control-grid > .control-group:nth-child(4n+1) .tooltip-popover,
  .demo-control-grid > .control-group:nth-child(4n) .tooltip-popover,
  .demo-control-grid > .control-group:nth-child(8) .tooltip-popover,
  .demo-control-grid:has(#demo-vertex-control[hidden]) > .control-group:has(#demo-k) .tooltip-popover {
    --tooltip-x: 0;
    right: auto;
    left: 0;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 124px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .risk-explainer {
    grid-column: 1;
  }

  .risk-row {
    grid-template-columns: minmax(112px, 0.42fr) minmax(0, 1fr) 48px;
  }

  .risk-track {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  :root {
    --container-pad: 18px;
    --section-block-padding: 42px;
  }

  .hero {
    padding-bottom: 28px;
  }

  .section {
    padding: var(--section-block-padding) 0;
  }

  .button {
    width: 100%;
  }

  .hero-panel,
  .demo-controls,
  .demo-panel {
    padding: 14px;
  }

  .control-group {
    grid-template-columns: 1fr;
  }

  .linear3d-weight-grid {
    grid-template-columns: 1fr;
  }

  .control-group output {
    text-align: left;
  }

  .risk-row {
    grid-template-columns: minmax(112px, 0.42fr) minmax(0, 1fr) 48px;
    gap: 8px;
  }
}