body.page-graph-algorithm .eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.ga-definition {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  margin: 16px 0;
  padding: 17px 19px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--panel);
}

.ga-definition p {
  margin: 0;
}

.ga-order-example {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}

.ga-order-example span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 750;
}

.ga-order-example i {
  color: var(--muted);
  font-style: normal;
}

.ga-cost {
  color: var(--accent);
  font-size: 1.08rem;
  font-weight: 750;
  white-space: nowrap;
}

.ga-proof-grid,
.ga-exercises {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.ga-proof-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ga-proof-grid article,
.ga-exercises article {
  padding: 15px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.ga-proof-grid article > span,
.ga-exercises article > span {
  color: var(--accent);
  font-size: 0.73rem;
  font-weight: 750;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.ga-proof-grid h4 {
  margin: 5px 0 7px;
}

.ga-proof-grid p,
.ga-exercises p {
  margin: 0;
}

.ga-exercises {
  margin-top: 18px;
}

.ga-lab {
  overflow: hidden;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.ga-lab button,
.ga-lab input,
.ga-lab select {
  font: inherit;
}

.ga-lab button {
  min-height: 38px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-alt);
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 650;
}

.ga-lab button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.ga-lab button:focus-visible,
.ga-lab input:focus-visible,
.ga-lab select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ga-lab button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.ga-toolbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
}

.ga-switch {
  display: flex;
  gap: 5px;
  margin-right: auto;
}

.ga-switch button {
  min-width: 105px;
}

.ga-switch button.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.ga-source span,
.ga-editor > label,
.ga-presets > span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ga-source select {
  min-width: 75px;
  min-height: 38px;
  padding: 6px 26px 6px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
}

.ga-editor {
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-alt);
}

.ga-editor > div:first-of-type {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto;
  gap: 6px;
}

.ga-editor input[type="text"] {
  width: 100%;
  min-height: 41px;
  box-sizing: border-box;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
}

.ga-editor input[aria-invalid="true"] {
  border-color: #b63535;
}

.ga-editor small {
  display: block;
  margin: 5px 0 10px;
  color: var(--muted);
  font-size: 0.75rem;
}

.ga-editor small.is-error {
  color: #b63535;
}

.ga-presets {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.ga-presets > span {
  margin: 0 4px 0 0;
}

.ga-presets button {
  min-height: 32px;
  padding: 5px 9px;
  font-size: 0.78rem;
}

.ga-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(245px, 0.75fr);
  min-height: 470px;
}

.ga-canvas-wrap {
  overflow-x: auto;
  border-right: 1px solid var(--line);
  background-color: var(--panel-alt);
  background-image: radial-gradient(circle, color-mix(in srgb, var(--line) 72%, transparent) 1px, transparent 1px);
  background-size: 18px 18px;
}

.ga-canvas-wrap svg {
  display: block;
  width: 100%;
  min-width: 530px;
  height: 470px;
}

.ga-edge {
  fill: none;
  stroke: color-mix(in srgb, var(--muted) 65%, var(--line));
  stroke-width: 2.2;
  transition: stroke 140ms ease, opacity 140ms ease;
}

.ga-edge.is-removed {
  stroke-dasharray: 6 5;
  opacity: 0.25;
}

.ga-edge.is-current {
  stroke: #d18418;
  stroke-width: 5;
  opacity: 1;
}

.ga-edge.is-accepted {
  stroke: #2e7c50;
  stroke-width: 5;
  opacity: 1;
}

.ga-edge.is-rejected {
  stroke: #b34545;
  stroke-width: 3;
  stroke-dasharray: 6 4;
  opacity: 0.75;
}

.ga-arrow { fill: color-mix(in srgb, var(--muted) 65%, var(--line)); }
.ga-arrow--current { fill: #d18418; }
.ga-arrow--removed { fill: color-mix(in srgb, var(--muted) 28%, transparent); }

.ga-node {
  outline: none;
}

.ga-node circle {
  fill: var(--panel);
  stroke: var(--line);
  stroke-width: 2.5;
  transition: fill 140ms ease, stroke 140ms ease;
}

.ga-node > text {
  fill: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  font-weight: 750;
  text-anchor: middle;
}

.ga-node.is-available circle {
  fill: color-mix(in srgb, #dba13f 23%, var(--panel));
  stroke: #bd7712;
}

.ga-node.is-current circle {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 5;
}

.ga-node.is-done circle,
.ga-node.is-selected circle {
  fill: color-mix(in srgb, #2e7c50 20%, var(--panel));
  stroke: #2e7c50;
}

.ga-node.is-cycle circle {
  fill: color-mix(in srgb, #b34545 17%, var(--panel));
  stroke: #b34545;
}

.ga-badge {
  fill: var(--panel);
  stroke: var(--accent);
  stroke-width: 1.5;
}

.ga-badge-text,
.ga-node-meta {
  fill: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10px;
  font-weight: 750;
  text-anchor: middle;
}

.ga-node-meta {
  fill: var(--muted);
}

.ga-weight-bg {
  fill: var(--panel);
  stroke: var(--line);
}

.ga-weight {
  fill: var(--text);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
  font-weight: 750;
  text-anchor: middle;
}

.ga-inspector {
  overflow: auto;
  max-height: 470px;
}

.ga-inspector section {
  padding: 13px 15px;
  border-bottom: 1px solid var(--line);
}

.ga-inspector h4 {
  margin: 0 0 9px;
  color: var(--muted);
  font-size: 0.69rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.ga-inspector p {
  margin: 0;
}

.ga-boxes,
.ga-edge-list {
  display: flex;
  min-height: 35px;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
}

.ga-boxes span,
.ga-edge-list span {
  display: inline-grid;
  min-width: 31px;
  min-height: 31px;
  box-sizing: border-box;
  place-items: center;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel-alt);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 700;
}

.ga-boxes--order span {
  border-color: color-mix(in srgb, #2e7c50 55%, var(--line));
}

.ga-edge-list span.is-current { border-color: #d18418; }
.ga-edge-list span.is-accepted { border-color: #2e7c50; }

.ga-pairs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.73rem;
}

.ga-pairs b {
  color: var(--accent);
}

.ga-total {
  color: var(--accent);
  font-size: 1.65rem;
  font-weight: 750;
}

.ga-status {
  display: flex;
  min-height: 67px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.ga-status p { margin: 0; }
.ga-status span { flex: 0 0 auto; color: var(--muted); font-size: 0.76rem; }

.ga-transport {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-alt);
}

.ga-transport > div { display: flex; gap: 5px; }
.ga-transport .ga-play { min-width: 94px; border-color: var(--accent); background: var(--accent-soft); }
.ga-transport > label { display: grid; grid-template-columns: auto minmax(80px, 125px) 25px; align-items: center; gap: 7px; color: var(--muted); font-size: 0.76rem; }
.ga-transport input { width: 100%; accent-color: var(--accent); }

.ga-code-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(230px, 0.75fr);
}

.ga-code {
  overflow-x: auto;
  padding: 13px 0;
  border-right: 1px solid var(--line);
  background: var(--panel-alt);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.74rem;
  line-height: 1.65;
}

.ga-code > div {
  min-width: 520px;
  padding: 1px 16px;
  white-space: pre;
}

.ga-code > div.is-active {
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  color: var(--accent);
  font-weight: 700;
}

.ga-code .line-number {
  display: inline-block;
  width: 26px;
  color: var(--muted);
  font-weight: 400;
}

.ga-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.ga-metrics div {
  padding: 12px 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.ga-metrics dt { color: var(--muted); font-size: 0.66rem; line-height: 1.25; text-transform: uppercase; }
.ga-metrics dd { margin: 3px 0 0; color: var(--accent); font-size: 1.08rem; font-weight: 750; font-variant-numeric: tabular-nums; }

@media (max-width: 900px) {
  .ga-stage { grid-template-columns: 1fr; }
  .ga-canvas-wrap { border-right: 0; border-bottom: 1px solid var(--line); }
  .ga-inspector { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: none; }
  .ga-code-layout { grid-template-columns: 1fr; }
  .ga-code { border-right: 0; border-bottom: 1px solid var(--line); }
}

@media (max-width: 650px) {
  .ga-definition { grid-template-columns: 1fr; }
  .ga-order-example { overflow-x: auto; }
  .ga-proof-grid,
  .ga-proof-grid--two,
  .ga-exercises,
  .ga-inspector { grid-template-columns: 1fr; }
  .ga-toolbar,
  .ga-editor,
  .ga-status,
  .ga-transport { padding-right: 12px; padding-left: 12px; }
  .ga-switch { width: 100%; }
  .ga-switch button { min-width: 0; flex: 1; }
  .ga-toolbar { flex-wrap: wrap; }
  .ga-editor > div:first-of-type { grid-template-columns: 1fr; }
  .ga-status,
  .ga-transport { align-items: stretch; flex-direction: column; }
  .ga-transport > div { display: grid; grid-template-columns: repeat(5, 1fr); }
  .ga-transport .ga-play { min-width: 0; }
  .ga-transport > label { grid-template-columns: auto minmax(80px, 1fr) 25px; }
}

@media (prefers-reduced-motion: reduce) {
  .ga-edge,
  .ga-node circle { transition: none; }
}