:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5d687a;
  --line: #dbe1ea;
  --wash: #f7f8fb;
  --accent: #236a7c;
  --accent-strong: #174a59;
  --paper: #ffffff;
  --warn: #6f4f12;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
}

.brand {
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem 1rem;
  font-size: 0.94rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover {
  color: var(--accent-strong);
}

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) clamp(1.25rem, 4vw, 2.5rem);
}

.hero {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.kicker {
  color: var(--accent-strong);
  font-size: 0.9rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 1rem;
  color: var(--ink);
  font-size: clamp(2.2rem, 6vw, 4.3rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.article-meta {
  margin: -0.25rem 0 2.25rem;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.45;
  text-align: left;
}

h2 {
  margin-top: 2.8rem;
  padding-top: 0.35rem;
  color: var(--ink);
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.18;
}

h3 {
  margin-top: 2rem;
  color: var(--ink);
  font-size: 1.15rem;
}

p,
li {
  font-size: 1.03rem;
}

.lede {
  max-width: 780px;
  color: var(--muted);
  font-size: clamp(1.12rem, 2.3vw, 1.35rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.55rem 0.9rem;
  background: var(--accent);
  color: white;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: white;
  color: var(--accent-strong);
}

.notice {
  border-left: 4px solid var(--warn);
  background: #fff8e9;
  padding: 1rem 1.1rem;
  color: #3d321c;
}

.diagram-figure {
  margin: 2rem 0;
}

.diagram-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--wash);
}

.diagram-figure figcaption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.toolkit-gallery {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.toolkit-gallery .panel {
  grid-column: span 2;
}

.toolkit-gallery .panel:nth-of-type(4) {
  grid-column: 2 / span 2;
}

.toolkit-gallery .panel:nth-of-type(5) {
  grid-column: 4 / span 2;
}

.panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  background: var(--wash);
  overflow-wrap: anywhere;
}

.panel h3 {
  margin-top: 0;
}

.panel a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.panel a.example-link {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  font-size: 0.9rem;
  line-height: 1.25;
  text-overflow: ellipsis;
  vertical-align: bottom;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
}

.scenario-list {
  display: grid;
  gap: 1rem;
  margin: 2rem 0;
}

.scenario-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  background: var(--wash);
}

.scenario-card h2 {
  margin-top: 0.4rem;
  padding-top: 0;
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
}

.scenario-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1rem;
}

.scenario-card p {
  font-size: 0.98rem;
}

.state-label {
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.column-order {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.5rem;
  margin: 1rem 0;
}

.column-order span {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.5rem 0.6rem;
  background: var(--wash);
  color: var(--ink);
  font-size: 0.9rem;
}

.column-order strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  margin-right: 0.35rem;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font-size: 0.8rem;
}

.scenario-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(230px, 0.75fr);
  gap: 1rem;
  align-items: start;
  margin-top: 1rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.probability-table {
  min-width: 0;
  margin: 0;
  font-size: 0.82rem;
}

.probability-table th,
.probability-table td {
  padding: 0.42rem 0.35rem;
  text-align: right;
}

.probability-table th:first-child,
.probability-table td:first-child {
  color: var(--muted);
  text-align: left;
}

.diagnostic-readout {
  min-width: 0;
  overflow: hidden;
  border: 1px solid #b7d1d8;
  border-radius: 8px;
  padding: 0.85rem;
  background: #eef8fa;
}

.diagnostic-readout dl {
  display: grid;
  grid-template-columns: minmax(5.2rem, 0.55fr) minmax(0, 1fr);
  gap: 0.35rem 0.55rem;
  margin: 0 0 0.85rem;
}

.diagnostic-readout dt {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 750;
}

.diagnostic-readout dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.diagnostic-readout code {
  padding: 0.08rem 0.2rem;
  font-size: 0.9em;
  white-space: normal;
  overflow-wrap: anywhere;
}

.diagnostic-readout p,
.microcopy {
  color: var(--muted);
  font-size: 0.88rem;
}

.microcopy {
  margin: 0.55rem 0 0;
}

.live-demo {
  display: grid;
  gap: 1rem;
  margin: 2rem 0;
  border: 1px solid #b7d1d8;
  border-radius: 8px;
  padding: clamp(1rem, 3vw, 1.25rem);
  background: #f4fbfc;
}

.live-demo-header,
.live-demo-grid {
  display: grid;
  gap: 1rem;
}

.live-demo-header {
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.36fr);
  align-items: end;
}

.live-demo-header h3,
.live-demo-section-title h4,
.live-demo-output h4 {
  margin: 0 0 0.35rem;
}

.live-demo-header p,
.live-demo-section-title p {
  margin: 0;
  color: var(--muted);
}

.live-demo-steps {
  display: grid;
  gap: 0.25rem;
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.live-demo-controls {
  display: grid;
  gap: 0.35rem;
}

.live-demo-controls label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 750;
}

.live-demo select,
.live-demo input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  color: var(--ink);
  font: inherit;
}

.live-demo select {
  min-height: 2.55rem;
  padding: 0.35rem 0.5rem;
}

.live-demo-context {
  border-left: 4px solid var(--accent);
  padding: 0.75rem 0.9rem;
  background: white;
}

.live-demo-context strong {
  color: var(--ink);
}

.live-demo-case-strip {
  display: grid;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 0.9rem;
}

.live-demo-case-strip p {
  margin: 0;
}

.live-demo-case-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr));
  gap: 0.55rem;
}

.case-button {
  min-height: 4.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  background: var(--wash);
  color: var(--ink);
  text-align: left;
}

.case-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: #e9f6f8;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.case-button span,
.case-button small {
  display: block;
}

.case-button span {
  font-weight: 800;
  line-height: 1.2;
}

.case-button small {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.live-demo-grid {
  grid-template-columns: minmax(0, 1.25fr) minmax(250px, 0.75fr);
  align-items: start;
}

.live-demo-editor,
.live-demo-output,
.manifold-map-panel,
.live-demo-explain,
.payload-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 1rem;
}

.live-demo-output {
  overflow: hidden;
}

.live-demo-output code {
  overflow-wrap: anywhere;
}

.live-table-wrap {
  margin-top: 0.8rem;
}

.live-demo-table {
  min-width: 650px;
  margin: 0;
}

.live-demo-table th,
.live-demo-table td {
  padding: 0.45rem 0.35rem;
  text-align: right;
}

.live-demo-table th:first-child,
.live-demo-table td:first-child {
  text-align: left;
}

.live-demo-table input {
  min-width: 4.4rem;
  padding: 0.32rem 0.28rem;
  text-align: right;
}

.row-sum {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.row-sum.is-off {
  color: #8a3b16;
}

.live-demo-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.live-demo button {
  cursor: pointer;
  font-family: inherit;
  font-size: 0.94rem;
}

.state-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  background: var(--accent);
  color: white;
  font-size: 0.85rem;
  font-weight: 750;
}

.live-metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0.85rem 0;
}

.live-metric {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.55rem;
  background: var(--wash);
}

.live-metric span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.live-metric strong {
  display: block;
  margin-top: 0.1rem;
  font-size: 1rem;
}

.probability-bars {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.8rem;
  min-width: 0;
}

.probability-bar-row {
  display: grid;
  grid-template-columns: minmax(0, 8.2rem) minmax(3.5rem, 1fr) minmax(2.4rem, max-content);
  gap: 0.45rem;
  align-items: center;
  min-width: 0;
}

.probability-bar-label,
.probability-bar-value {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.probability-bar-label {
  min-width: 0;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.probability-bar-value {
  justify-self: end;
  font-variant-numeric: tabular-nums;
}

.probability-bar-track {
  min-width: 0;
  height: 0.55rem;
  border-radius: 999px;
  background: #dbe1ea;
  overflow: hidden;
}

.probability-bar-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.sequence-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(4.9rem, 1fr));
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.sequence-chip {
  display: block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.45rem;
  background: var(--wash);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 750;
  overflow: hidden;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.manifold-map-panel {
  display: grid;
  gap: 0.85rem;
}

.manifold-map-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: 1rem;
  align-items: start;
}

.manifold-map-header h4,
.manifold-map-header p {
  margin: 0;
}

.manifold-map-header p {
  color: var(--muted);
}

.manifold-scale {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  background: var(--wash);
  font-size: 0.78rem;
  font-weight: 750;
  white-space: nowrap;
}

.manifold-map-frame {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #f6fafb 100%);
  padding: 0.9rem;
}

.manifold-map-frame svg {
  width: min(100%, 25rem);
  height: auto;
  overflow: visible;
}

.state-shape-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
  gap: 0.8rem;
}

.state-shape-card {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 0.55rem;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbfc 100%);
}

.state-shape-card.is-active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent), 0 0.5rem 1.2rem rgba(35, 106, 124, 0.1);
}

.state-shape-card-header {
  display: grid;
  gap: 0.35rem;
  align-items: start;
}

.state-shape-card h5,
.state-shape-card p {
  margin: 0;
}

.state-shape-card h5 {
  font-size: 0.95rem;
  line-height: 1.18;
}

.state-shape-card-header p {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.state-shape-action {
  justify-self: start;
  max-width: 7.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.12rem 0.42rem;
  background: var(--wash);
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 1.2;
  overflow-wrap: anywhere;
  text-align: center;
}

.state-shape-card.is-active .state-shape-action {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.state-shape-svg {
  display: grid;
  place-items: center;
  min-height: 10.6rem;
  border: 1px solid #edf2f6;
  border-radius: 8px;
  background: #ffffff;
}

.state-shape-svg svg {
  width: min(100%, 12rem);
  height: auto;
  overflow: visible;
}

.manifold-axis-label,
.manifold-point-label,
.manifold-start-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 800;
  pointer-events: none;
}

.manifold-axis-label {
  fill: var(--muted);
  font-size: 0.72rem;
}

.manifold-point-label {
  fill: white;
  font-size: 0.48rem;
}

.manifold-start-label {
  fill: var(--muted);
  font-size: 0.62rem;
}

.manifold-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.75rem;
  align-items: center;
}

.manifold-legend-item {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.manifold-swatch {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
}

.live-demo-explain p {
  margin: 0;
}

.payload-panel summary {
  cursor: pointer;
  color: var(--accent-strong);
  font-weight: 750;
}

.payload-panel pre {
  margin-bottom: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.65rem 0.5rem;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 750;
}

code {
  border-radius: 4px;
  background: var(--wash);
  padding: 0.1rem 0.25rem;
  font-size: 0.94em;
}

pre {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--wash);
  padding: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1rem clamp(1.25rem, 4vw, 3rem) 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .toolkit-gallery {
    grid-template-columns: 1fr;
  }

  .toolkit-gallery .panel,
  .toolkit-gallery .panel:nth-of-type(4),
  .toolkit-gallery .panel:nth-of-type(5) {
    grid-column: auto;
  }

  .scenario-detail-grid {
    grid-template-columns: 1fr;
  }

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

  .live-metric-grid {
    grid-template-columns: 1fr;
  }

  .manifold-map-header {
    grid-template-columns: 1fr;
  }

  .manifold-scale {
    justify-self: start;
  }

  .state-shape-action {
    max-width: 100%;
  }

  .probability-bar-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.25rem;
  }

  .page > table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}