@font-face {
  font-family: "Cormorant Garamond";
  src: url("/assets/fonts/cormorant-garamond-latin-400.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Cormorant Garamond";
  src: url("/assets/fonts/cormorant-garamond-latin-600.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 600;
}

@font-face {
  font-family: "Cormorant Garamond";
  src: url("/assets/fonts/cormorant-garamond-latin-700.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 700;
}

@font-face {
  font-family: "Cormorant Garamond";
  src: url("/assets/fonts/cormorant-garamond-latin-400italic.woff2") format("woff2");
  font-display: swap;
  font-style: italic;
  font-weight: 400;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("/assets/fonts/source-sans-3-latin-400.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("/assets/fonts/source-sans-3-latin-600.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 600;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/assets/fonts/jetbrains-mono-latin-400.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/assets/fonts/jetbrains-mono-latin-600.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 600;
}

:root {
  --site-header-height: 0px;
  --amber: #e0aa50;
  --amber-bg: #342a18;
  --bg: #1a1816;
  --border: #3d3833;
  --border-strong: #575048;
  --card: #292622;
  --copper: #d4956a;
  --danger: #ef8467;
  --danger-bg: #38201a;
  --focus: #f6c763;
  --ink: #f0e7da;
  --muted: #b6a99d;
  --sage: #91c496;
  --sage-bg: #203326;
  --surface: #211f1c;
  --teal: #3ecfbf;
  --teal-bg: #153a36;
  --teal-dark: #1a8b80;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Sans 3", system-ui, sans-serif;
  line-height: 1.65;
  margin: 0;
  min-height: 100vh;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #7ce4d9;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.shell {
  margin-inline: auto;
  max-width: 1040px;
  padding-inline: 24px;
  width: 100%;
}

.skip-link {
  background: var(--focus);
  color: #151310;
  left: 16px;
  padding: 10px 14px;
  position: fixed;
  top: -80px;
  z-index: 200;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-layout {
  align-items: center;
  display: flex;
  gap: 22px;
  justify-content: space-between;
  padding-bottom: 8px;
  padding-top: 8px;
}

.identity-block {
  min-width: 0;
}

.back-link {
  color: var(--muted);
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  margin-bottom: 2px;
  text-decoration: none;
}

.title-row {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.title-row h1 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 30px;
  line-height: 1;
  margin: 0;
}

.model-badge,
.eyebrow,
.micro-label {
  color: var(--teal);
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0;
}

.model-badge {
  border: 1px solid var(--teal-dark);
  border-radius: 3px;
  padding: 3px 7px;
}

.subtitle,
.byline {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
  margin: 2px 0 0;
}

.byline {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 13px;
  font-style: italic;
}

.route-nav {
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.route-nav a {
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-size: 12px;
  padding: 4px 10px;
  text-decoration: none;
}

.route-nav a.active {
  border-bottom-color: var(--teal);
  color: var(--teal);
  font-weight: 600;
}

.crypto-status {
  align-items: center;
  color: var(--muted);
  display: flex;
  flex: 0 0 auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  gap: 6px;
  justify-content: flex-end;
  max-width: 270px;
  text-align: right;
  white-space: nowrap;
}

.status-dot {
  background: var(--amber);
  border-radius: 50%;
  flex: 0 0 8px;
  height: 8px;
  width: 8px;
}

.crypto-status.ready .status-dot {
  background: var(--sage);
}

.crypto-status.failed .status-dot {
  background: var(--danger);
}

.tab-shell {
  overflow-x: auto;
  scrollbar-color: var(--border-strong) transparent;
}

.tabs {
  display: flex;
  min-width: max-content;
}

.tab-button {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-size: 12px;
  min-height: 36px;
  padding: 6px 12px;
}

.tab-button:hover {
  color: var(--ink);
}

.tab-button[aria-selected="true"] {
  border-bottom-color: var(--teal);
  color: var(--teal);
  font-weight: 600;
}

.main-content {
  min-height: 70vh;
  padding-bottom: 90px;
  padding-top: 42px;
}

.tab-panel {
  min-width: 0;
}

.section-heading {
  border-bottom: 1px solid var(--border);
  margin-bottom: 30px;
  max-width: 800px;
  padding-bottom: 22px;
}

.eyebrow,
.micro-label {
  margin: 0 0 7px;
  text-transform: uppercase;
}

.section-heading h2 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 34px;
  line-height: 1.12;
  margin: 0 0 10px;
}

.section-heading p:last-child {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
  max-width: 74ch;
}

h3 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 20px;
  line-height: 1.25;
}

.subheading {
  font-size: 18px;
  margin: 0 0 12px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  font-size: 13px;
  font-weight: 600;
  justify-content: center;
  min-height: 40px;
  padding: 9px 16px;
}

.button.primary {
  background: var(--teal);
  color: #101b19;
}

.button.primary:hover {
  background: #73e0d5;
}

.button.secondary {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--ink);
}

.button.secondary:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.button.large {
  min-height: 46px;
  width: auto;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.tool-row {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(220px, 1fr) auto;
  margin-bottom: 26px;
}

.tool-row > label {
  color: var(--muted);
  font-size: 12px;
  grid-column: 1 / -1;
  margin-bottom: -8px;
}

.tool-row > .button {
  justify-self: start;
}

.tool-row > .action-status {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  background: #171513;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  color: var(--ink);
  min-height: 42px;
  padding: 9px 11px;
  width: 100%;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #746c63;
}

input[type="checkbox"] {
  accent-color: var(--teal);
  flex: 0 0 18px;
  height: 18px;
  min-height: 18px;
  padding: 0;
  width: 18px;
}

label {
  color: var(--ink);
  display: grid;
  font-size: 13px;
  gap: 6px;
}

.artifact-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 22px;
}

.artifact-input,
.artifact-output {
  border: 1px solid var(--border);
  border-left: 3px solid var(--copper);
  border-radius: 8px;
  min-height: 184px;
  padding: 22px;
}

.artifact-output {
  border-left-color: var(--danger);
}

.artifact-input h3,
.artifact-output h3 {
  font-size: 24px;
  margin: 0 0 10px;
  overflow-wrap: anywhere;
}

.artifact-input p:last-child,
.artifact-output p:last-child {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

.diagnostic-list {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.diagnostic-item {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(96px, auto) 1fr;
  padding: 14px 16px;
}

.diagnostic-marker {
  align-items: center;
  background: #171513;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--muted);
  display: flex;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  min-height: 28px;
  justify-content: center;
  padding: 5px 8px;
  text-transform: uppercase;
  width: 100%;
}

.diagnostic-marker.triggered {
  background: var(--danger-bg);
  border-color: #7a3f31;
  color: var(--danger);
}

.diagnostic-item strong {
  display: block;
  font-size: 13px;
  margin-bottom: 3px;
}

.diagnostic-item p {
  color: var(--muted);
  font-size: 12px;
  margin: 0;
}

.result-banner,
.notice,
.result-area {
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  border-radius: 6px;
  color: var(--muted);
  margin-block: 18px;
  padding: 14px 16px;
}

.result-banner strong,
.notice strong,
.result-area strong {
  color: var(--ink);
}

.result-banner.danger,
.result-area.deny {
  background: var(--danger-bg);
  border-color: #703b30;
  border-left-color: var(--danger);
}

.result-area.pass {
  background: var(--sage-bg);
  border-color: #3f6447;
  border-left-color: var(--sage);
}

.result-area.warn,
.notice.important {
  background: var(--amber-bg);
  border-color: #6f5629;
  border-left-color: var(--amber);
}

.result-area:empty {
  display: none;
}

.action-status {
  color: var(--muted);
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  min-height: 1.65em;
}

.action-status:empty {
  min-height: 0;
}

.action-status.pass {
  color: var(--sage);
}

.action-status.warn {
  color: var(--amber);
}

.action-status.deny {
  color: var(--danger);
}

.hard-rule {
  border-top: 1px solid var(--border);
  color: var(--danger);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  margin-top: 34px;
  padding-top: 18px;
}

.form-section {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0 0 24px;
  padding: 22px;
}

.dva-example-bar {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  display: grid;
  gap: 12px 18px;
  grid-template-columns: minmax(0, 1fr) auto;
  margin: 22px 0;
  padding: 16px 18px;
}

.dva-example-bar p {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

.dva-example-bar p strong {
  color: var(--ink);
}

.dva-example-bar .action-status {
  grid-column: 1 / -1;
}

.error-summary {
  background: var(--danger-bg);
  border: 2px solid var(--danger);
  border-radius: 8px;
  margin: 0 0 26px;
  padding: 16px 18px;
}

.error-summary h3 {
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 17px;
  margin: 0 0 8px;
}

.error-summary ul {
  margin: 0;
  padding-left: 22px;
}

.error-summary li {
  margin-top: 5px;
}

.error-summary a {
  color: var(--ink);
}

.field-error {
  color: #ffad98;
  font-size: 12px;
  font-weight: 600;
  grid-column: 1 / -1;
  margin: 2px 0 0;
}

[aria-invalid="true"] {
  border-color: var(--danger);
}

.attestation {
  flex-wrap: wrap;
}

.attestation .field-error {
  flex-basis: 100%;
}

fieldset.form-section,
.form-section fieldset {
  min-width: 0;
}

.form-section legend {
  color: var(--teal);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  padding-inline: 8px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

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

.date-pair {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.nested-fieldset {
  border: 0;
  border-top: 1px solid var(--border);
  margin-top: 22px;
  padding: 18px 0 0;
}

.checkbox-grid {
  display: grid;
  gap: 8px 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.checkbox-grid label,
.attestation {
  align-items: center;
  display: flex;
  gap: 9px;
}

.condition-list {
  display: grid;
  gap: 10px;
}

.condition-option {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  display: grid;
  gap: 12px;
  grid-template-columns: 20px 1fr;
  padding: 13px 14px;
}

.condition-option:has(input:checked) {
  border-color: var(--teal-dark);
}

.condition-copy strong {
  display: block;
}

.condition-copy span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-top: 2px;
}

.operation-determinations {
  display: grid;
  gap: 9px;
  margin: 14px 0 20px;
}

.operation-row {
  align-items: center;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(130px, 1fr) minmax(250px, 2fr);
}

.operation-row span {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}

.determination-fields {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.attestation {
  margin: 18px 0;
}

.field-help,
.empty-state {
  color: var(--muted);
  font-size: 12px;
}

.empty-state {
  font-style: italic;
  margin: 4px 0;
}

.crypto-caveat {
  display: grid;
  gap: 6px;
}

.crypto-caveat span {
  font-size: 13px;
}

.definition-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 24px 0;
}

.definition-grid > div {
  background: var(--surface);
  min-width: 0;
  padding: 14px;
}

.definition-grid dt {
  color: var(--muted);
  font-size: 11px;
}

.definition-grid dd {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  margin: 6px 0 0;
  overflow-wrap: anywhere;
}

.code-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-block: 24px;
}

.code-grid h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

pre {
  background: #11100f;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: #cfeee9;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  line-height: 1.6;
  margin: 0;
  max-height: 430px;
  overflow: auto;
  padding: 16px;
  white-space: pre-wrap;
  word-break: break-word;
}

.signature-line {
  align-items: start;
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
  display: grid;
  gap: 12px;
  grid-template-columns: 100px 1fr;
  padding-block: 14px;
}

.signature-line span {
  color: var(--muted);
  font-size: 12px;
}

.signature-line code,
.capability-panel code {
  color: var(--teal);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  overflow-wrap: anywhere;
}

.boundary-list {
  margin-top: 32px;
}

.output-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-block: 18px 24px;
}

.output-actions .action-status {
  flex-basis: 100%;
}

.boundary-list h3 {
  margin-bottom: 8px;
}

.boundary-list li,
.limits-grid li {
  color: var(--muted);
  margin-bottom: 7px;
}

.gate-layout {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(250px, 0.8fr) minmax(0, 1.7fr);
}

.scenario-list {
  display: grid;
  gap: 9px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.scenario-button {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--ink);
  display: block;
  min-height: 74px;
  padding: 12px 14px;
  text-align: left;
  width: 100%;
}

.scenario-button:hover,
.scenario-button[aria-current="true"] {
  border-color: var(--teal-dark);
}

.scenario-button[aria-current="true"] {
  background: var(--teal-bg);
}

.scenario-button strong,
.scenario-button span {
  display: block;
}

.scenario-button strong {
  font-size: 13px;
}

.scenario-button span {
  color: var(--muted);
  font-size: 11px;
  margin-top: 3px;
}

.gate-workspace {
  min-width: 0;
}

.gate-sticky-actions {
  background: var(--bg);
}

.scenario-summary {
  border-left: 3px solid var(--copper);
  margin-bottom: 18px;
  padding: 4px 0 4px 16px;
}

.scenario-summary h3 {
  margin: 0 0 6px;
}

.scenario-summary p {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 8px;
}

.expected-line strong {
  color: var(--amber);
  font-family: "JetBrains Mono", monospace;
}

.gate-steps {
  counter-reset: gate-step;
  display: grid;
  gap: 7px;
  list-style: none;
  margin: 22px 0;
  padding: 0;
}

.gate-step {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: grid;
  gap: 10px;
  grid-template-columns: 30px minmax(120px, 0.7fr) 70px minmax(0, 1.7fr);
  padding: 10px 12px;
}

.gate-step-number {
  align-items: center;
  background: #171513;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  height: 26px;
  justify-content: center;
  width: 26px;
}

.gate-step-label {
  font-size: 12px;
  font-weight: 600;
}

.step-status {
  border-radius: 3px;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  padding: 3px 5px;
  text-align: center;
}

.step-status.pass,
.step-status.ready,
.step-status.sealed {
  background: var(--sage-bg);
  color: var(--sage);
}

.step-status.deny {
  background: var(--danger-bg);
  color: var(--danger);
}

.step-status.withheld,
.step-status.unavailable,
.step-status.no-longer-valid {
  background: var(--amber-bg);
  color: var(--amber);
}

.step-status.not-run {
  background: #171513;
  color: var(--muted);
}

.gate-step-detail {
  color: var(--muted);
  font-size: 11px;
  margin: 0;
}

.capability-panel {
  border: 1px solid var(--teal-dark);
  border-radius: 8px;
  margin-top: 22px;
  padding: 18px;
}

.capability-panel h3 {
  margin: 0 0 5px;
}

.capability-panel p {
  color: var(--muted);
  font-size: 12px;
}

.capability-panel code {
  display: block;
  margin: 12px 0;
}

.policy-taxonomy {
  border-block: 1px solid var(--border);
  margin-bottom: 26px;
  padding-block: 16px;
}

.policy-taxonomy h3 {
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 13px;
  margin: 0 0 9px;
}

.policy-dimensions {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.policy-dimensions li {
  border-left: 2px solid var(--teal-dark);
  color: var(--muted);
  font-size: 12px;
  padding: 3px 8px;
}

.nde-demo {
  border-bottom: 1px solid var(--border);
  margin-bottom: 30px;
  padding-bottom: 30px;
}

.nde-demo h3 {
  margin-bottom: 6px;
}

.nde-demo > p {
  color: var(--muted);
  font-size: 13px;
}

.response-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.response-record {
  background: #11100f;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 15px;
}

.response-record h4 {
  font-size: 12px;
  margin: 0 0 8px;
}

.response-record dl {
  display: grid;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  gap: 4px 10px;
  grid-template-columns: 70px 1fr;
  margin: 0;
}

.response-record dt {
  color: var(--muted);
}

.response-record dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.timing-caveat {
  border-left: 3px solid var(--amber);
  color: var(--muted);
  font-size: 12px;
  margin-top: 18px;
  padding-left: 14px;
}

#governance-record-form fieldset {
  border: 0;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
}

.store-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 32px;
}

.store-grid > section {
  border-top: 2px solid var(--copper);
  min-width: 0;
  padding-top: 12px;
}

.store-grid h3 {
  align-items: center;
  display: flex;
  font-size: 17px;
  gap: 8px;
  justify-content: space-between;
}

.store-grid h3 span {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--muted);
  font: 10px/24px "JetBrains Mono", monospace;
  height: 26px;
  text-align: center;
  width: 26px;
}

.record-list {
  display: grid;
  gap: 10px;
}

.authored-record {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 13px;
}

.authored-record code {
  color: var(--copper);
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  overflow-wrap: anywhere;
}

.authored-record p {
  color: var(--muted);
  font-size: 12px;
  margin: 7px 0 0;
}

.prose-panel {
  max-width: 900px;
}

.principle-grid,
.limits-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.principle-grid article,
.limits-grid section {
  border-top: 2px solid var(--copper);
  padding-top: 12px;
}

.principle-grid h3,
.limits-grid h3 {
  margin: 0 0 7px;
}

.principle-grid p,
.limits-grid li {
  color: var(--muted);
  font-size: 13px;
}

.limits-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 28px;
}

.limits-grid ul {
  margin: 0;
  padding-left: 20px;
}

.text-link {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}

.about-copy {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 20px;
  line-height: 1.7;
  max-width: 760px;
}

.about-copy p {
  margin: 0 0 22px;
}

.author-block {
  align-items: center;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 26px;
  grid-template-columns: 150px 1fr;
  margin-top: 42px;
  padding-top: 28px;
}

.author-block picture,
.author-block img {
  display: block;
  width: 100%;
}

.author-block img {
  aspect-ratio: 4 / 5;
  border-radius: 6px;
  object-fit: cover;
}

.author-block h3 {
  font-size: 25px;
  margin: 0 0 5px;
}

.author-block p {
  color: var(--muted);
  font-size: 13px;
  margin: 4px 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  line-height: 1.8;
  padding-block: 28px;
}

.site-footer p {
  margin: 0 0 5px;
}

@media (min-width: 841px) {
  .gate-sticky-actions {
    padding-bottom: 12px;
    position: sticky;
    top: calc(var(--site-header-height, 150px) + 12px);
    z-index: 5;
  }
}

@media (max-width: 840px) {
  .header-layout {
    align-items: flex-start;
    flex-direction: column;
  }

  .crypto-status {
    flex: 0 0 auto;
    justify-content: flex-start;
    text-align: left;
    white-space: normal;
  }

  .gate-layout,
  .limits-grid {
    grid-template-columns: 1fr;
  }

  .scenario-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .policy-dimensions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gate-step {
    grid-template-columns: 30px minmax(120px, 1fr) 70px;
  }

  .gate-step-detail {
    grid-column: 2 / -1;
  }
}

@media (max-width: 680px) {
  .shell {
    padding-inline: 16px;
  }

  .site-header {
    position: static;
  }

  .tab-shell {
    overflow-x: visible;
  }

  .tabs {
    flex-wrap: wrap;
    min-width: 0;
  }

  .tab-button {
    flex: 1 1 92px;
  }

  .main-content {
    padding-top: 30px;
  }

  .section-heading h2 {
    font-size: 30px;
  }

  .artifact-grid,
  .code-grid,
  .definition-grid,
  .form-grid.two-column,
  .principle-grid,
  .response-grid,
  .store-grid {
    grid-template-columns: 1fr;
  }

  .tool-row {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .dva-example-bar {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .dva-example-bar .action-status {
    grid-column: auto;
  }

  .tool-row > label {
    grid-column: auto;
  }

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

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

  .operation-row {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .condition-option {
    grid-template-columns: 20px 1fr;
  }

  .author-block {
    align-items: start;
    grid-template-columns: 96px 1fr;
  }
}

@media (max-width: 420px) {
  .title-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .model-badge {
    overflow-wrap: anywhere;
  }

  .route-nav a,
  .tab-button {
    padding-inline: 10px;
  }

  .form-section {
    padding: 16px;
  }

  .checkbox-grid,
  .date-pair,
  .policy-dimensions {
    grid-template-columns: 1fr;
  }

  .gate-step {
    grid-template-columns: 30px 1fr;
  }

  .step-status {
    grid-column: 2;
    justify-self: start;
  }

  .gate-step-detail {
    grid-column: 2;
  }

  .signature-line {
    grid-template-columns: 1fr;
  }

  .author-block {
    grid-template-columns: 1fr;
  }

  .author-block picture {
    max-width: 160px;
  }
}

@page {
  margin: 0.65in;
}

@media print {
  html {
    background: #fff;
    color-scheme: light;
  }

  body,
  .site-header,
  .gate-sticky-actions,
  .artifact-input,
  .artifact-output,
  .diagnostic-item,
  .form-section,
  .dva-example-bar,
  .definition-grid > div,
  .scenario-button,
  .gate-step,
  .capability-panel,
  .notice,
  .result-area,
  .result-banner,
  .error-summary,
  .condition-option,
  input,
  select,
  textarea,
  pre {
    background: #fff !important;
    color: #111 !important;
  }

  body {
    font-size: 11pt;
    min-height: 0;
  }

  a,
  .route-nav a,
  .back-link,
  .text-link {
    color: #111 !important;
    text-decoration: underline;
  }

  .site-header,
  .gate-sticky-actions {
    position: static;
  }

  .site-header {
    border-color: #777;
  }

  .header-layout {
    padding-inline: 0;
  }

  .tab-shell,
  .route-nav,
  .crypto-status,
  .button,
  .action-status,
  .skip-link,
  .reference-status__dismiss,
  .reference-status__restore {
    display: none !important;
  }

  .reference-status {
    background: #fff !important;
    border: 1px solid #777;
    color: #111 !important;
    position: static;
  }

  .reference-status.is-collapsed .reference-status__inner,
  .reference-status__inner {
    display: flex !important;
    max-width: none;
    padding: 10px 12px;
  }

  .reference-status__copy,
  .reference-status__copy strong,
  .section-heading p:last-child,
  .diagnostic-item p,
  .field-help,
  .empty-state,
  .scenario-button span,
  .scenario-summary p,
  .gate-step-detail,
  .boundary-list li,
  .limits-grid li,
  .policy-dimensions li,
  .site-footer {
    color: #222 !important;
  }

  .main-content {
    min-height: 0;
    padding: 24px 0 0;
  }

  .shell {
    max-width: none;
    padding-inline: 0;
  }

  .tab-panel {
    break-inside: auto;
  }

  pre {
    border-color: #777;
    font-size: 9pt;
    max-height: none !important;
    overflow: visible !important;
    white-space: pre-wrap;
  }

  .code-grid,
  .gate-layout {
    grid-template-columns: 1fr;
  }

  .gate-steps,
  .result-area,
  .result-banner,
  .notice,
  .code-grid,
  .signature-line,
  .capability-panel {
    break-inside: avoid-page;
  }

  .site-footer {
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}


/* Connected learning route and progressive reference inspection. */
.site-header { position: static; }
.header-layout { padding-block: 22px 18px; align-items: center; }
.title-row h1 { font-size: 44px; line-height: 1; }
.subtitle { margin: 8px 0 4px; max-width: 54ch; }
.byline { margin: 4px 0 10px; }
.revision-label { color: var(--muted); font-size: 13px; text-align: right; }
.route-nav { display: flex; gap: 8px 22px; flex-wrap: wrap; }
.route-nav a { font-size: 15px; padding: 7px 0; }
.route-nav a[aria-current="location"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--teal); text-underline-offset: 8px; }
.main-content { padding-top: 35px; }
.reference-status__copy { font-size: 14px; }
.learning-intro { max-width: 780px; margin-bottom: 26px; }
.learning-intro h2 { font-family: "Cormorant Garamond", Georgia, serif; font-size: clamp(34px, 4.4vw, 52px); line-height: 1.08; margin: 12px 0 20px; letter-spacing: -.025em; }
.learning-intro > p:not(.eyebrow) { font-size: 18px; max-width: 68ch; }
.learning-intro .learning-foundation { color: var(--muted); font-size: 16px !important; }
.featured-case { background: var(--surface); border: 1px solid var(--border-strong); border-left: 3px solid var(--teal); padding: 26px 30px; display: flex; gap: 30px; align-items: center; }
.featured-case > div { flex: 1; }
.featured-case h3 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 30px; line-height: 1.15; margin: 5px 0 10px; }
.featured-case p { margin-bottom: 0; }
.featured-case .button { flex-shrink: 0; }
.case-library-heading { margin: 38px 0 20px; }
.case-library-heading h3 { margin-bottom: 4px; font-size: 23px; }
.case-library-heading p { margin: 0; color: var(--muted); }
.case-library { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.case-card { border: 1px solid var(--border); background: var(--surface); padding: 24px; display: flex; align-items: flex-start; flex-direction: column; }
.case-card h3 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 28px; line-height: 1.2; margin: 6px 0; }
.case-card > p:not(.eyebrow) { color: var(--muted); }
.case-card .button { margin-top: auto; }
.eyebrow, .micro-label, .model-badge { font-size: 12px; }
.button, .tab-button { font-size: 15px; min-height: 44px; }
.button:disabled { cursor: default; opacity: .55; }
.case-topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.case-topbar .field-help { margin: 0; text-align: center; }
.case-progress { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 6px; margin: 14px 0 28px; }
.case-step { color: var(--muted); border: 1px solid var(--border); border-radius: 3px; background: var(--surface); padding: 10px 8px; font-size: 14px; min-height: 46px; }
.case-step[aria-current="step"] { color: var(--ink); background: var(--teal-bg); border-color: var(--teal); }
.case-stage-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px 20px; }
.case-stage-heading h2 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 35px; line-height: 1.18; margin: 0 0 18px; }
.simulation-clock { font-size: 15px; color: var(--muted); margin: 0 0 18px; }
.simulation-time-details { font-size: 15px; color: var(--muted); max-width: 100%; }
.simulation-time-details summary { cursor: pointer; padding-block: 7px; }
.simulation-time-details p { margin: 8px 0; }
.simulation-time-details time, .simulation-time-details code { overflow-wrap: anywhere; }
.case-share-fallback { border: 1px solid var(--border-strong); padding: 16px; margin-bottom: 22px; }
.case-share-fallback input { font-size: 16px; }
.grant-remaining { color: var(--teal); font-size: 16px; }
.case-context { background: var(--surface); border: 1px solid var(--border); margin-bottom: 24px; }
.case-context summary { padding: 12px 16px; font-size: 15px; cursor: pointer; }
.case-context .case-definition-grid { padding: 0 18px 14px; margin: 0; }
.case-stage { max-width: 100%; }
.case-question { font-size: 21px; color: var(--ink); max-width: 65ch; }
.case-definition-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 28px; margin: 22px 0; }
.case-definition-grid div { min-width: 0; }
.case-definition-grid dt { font-weight: 600; color: var(--muted); font-size: 14px; margin-bottom: 5px; }
.case-definition-grid dd { margin: 0; font-size: 17px; overflow-wrap: anywhere; }
.evidence-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 24px 0; }
.evidence-grid article { border-top: 2px solid var(--border-strong); padding: 12px 18px; background: var(--surface); }
.evidence-grid h3 { font-size: 19px; line-height: 1.35; }
.evidence-category { color: var(--teal); font-weight: 600; }
.authored-decision { border-left: 3px solid var(--copper); background: var(--surface); padding: 22px 26px; }
.authored-decision h3 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 29px; line-height: 1.2; }
.lesson-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0; }
.case-result { border: 1px solid var(--border-strong); border-left: 3px solid var(--amber); background: var(--surface); padding: 22px 26px; margin: 20px 0; }
.case-result.permitted { border-left-color: var(--sage); }
.case-result h3 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 29px; margin: 4px 0 14px; line-height: 1.2; }
.case-result p { max-width: 76ch; }
.current-grant { border-top: 1px solid var(--border); padding-top: 12px; color: var(--muted); }
.case-companions, .case-ledger { border-top: 1px solid var(--border); padding-top: 12px; margin-top: 14px; }
.case-answer { border-left: 3px solid var(--copper); margin: 14px 0; padding: 4px 16px; }
.case-answer p { margin: 6px 0; }
.case-companions h4, .case-ledger h4 { font-size: 17px; margin: 0 0 6px; }
.case-companions li, .case-ledger li { margin-block: 6px; max-width: 76ch; overflow-wrap: anywhere; }
.prediction-feedback { font-style: italic; }
.obligations-panel { margin: 28px 0; }
.obligations-panel h3 { font-size: 21px; }
.variation-label { display: block; margin-bottom: 8px; font-weight: 600; }
#lesson-variation, #lesson-prediction, #lesson-observer { width: 100%; min-height: 46px; font-size: 16px; margin: 8px 0; }
.changed-condition { border-left: 3px solid var(--copper); padding: 8px 18px; margin: 18px 0; font-size: 18px; }
.technical-details, .learning-glossary, .reference-key-details { border: 1px solid var(--border); background: var(--surface); margin: 18px 0; }
.technical-details > summary, .learning-glossary > summary, .reference-key-details > summary { padding: 14px 18px; cursor: pointer; font-weight: 600; font-size: 16px; }
.technical-details > :not(summary), .learning-glossary > :not(summary), .reference-key-details > :not(summary) { margin-inline: 18px; }
.technical-details > :last-child { margin-bottom: 18px; }
.boundary-view pre, .technical-details pre { max-height: 420px; font-size: 13px; white-space: pre-wrap; overflow-wrap: anywhere; }
.lesson-trace { padding-inline-start: 30px; }
.lesson-trace li { margin-block: 16px; }
.lesson-trace p { color: var(--muted); margin: 4px 0; }
.lesson-navigation { display: flex; justify-content: flex-end; gap: 12px; border-top: 1px solid var(--border); padding-top: 22px; margin-top: 30px; }
.lesson-navigation .secondary { margin-right: auto; }
.learning-live { color: var(--teal); min-height: 1.4em; margin: 16px 0; }
.learning-glossary { margin-top: 36px; }
.glossary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 28px; padding: 8px 0 16px; }
.glossary-grid dt { font-weight: 600; color: var(--teal); }
.glossary-grid dd { margin: 5px 0 0; }
.version-note { color: var(--muted); font-size: 14px; max-width: 80ch; margin-top: 25px; }
.version-note code { font-size: 13px; overflow-wrap: anywhere; }
.essay-map { border: 1px solid var(--border); border-left: 3px solid var(--copper); background: var(--surface); padding: 20px 24px; margin-top: 36px; }
.essay-map h3 { font-family: "Cormorant Garamond", Georgia, serif; font-size: 27px; line-height: 1.2; margin: 0 0 6px; }
.essay-map > p { color: var(--muted); margin: 0 0 12px; }
.essay-map-list { list-style: none; margin: 0; padding: 0; }
.essay-map-list li { border-top: 1px solid var(--border); padding: 10px 0; overflow-wrap: anywhere; }
.essay-map-list strong { display: block; font-weight: 600; margin-bottom: 3px; }
.essay-map-list a { display: inline-block; padding-block: 3px; }
.inspect-summary { margin-top: 4px; }
.changelog { border-top: 1px solid var(--border); margin-top: 34px; padding-top: 24px; max-width: 760px; }
.changelog h3 { font-size: 22px; margin: 0 0 8px; }
.changelog p { color: var(--muted); }
.changelog li { margin-block: 8px; }
.reference-heading h2 { font-size: 31px; margin-bottom: 8px; }
.reference-heading p { color: var(--muted); max-width: 75ch; }
.tab-shell { padding: 0; margin: 22px 0 30px; }
.tabs { position: static; }
.tab-button { padding: 12px 10px; }
.gate-sticky-actions { position: static; }
.field-help, .gate-step-detail, .scenario-button span { font-size: 15px; }
#reference label, #reference .tool-row > label, #reference .action-status, #reference .dva-example-bar p { font-size: 15px; }
#reference input:not([type="checkbox"]), #reference select, #reference textarea { font-size: 16px; }
#reference .hard-rule { font-size: 14px; line-height: 1.6; }
.gate-step-label { font-size: 15px; }
.plain-summary, .policy-difference { background: var(--surface); border-left: 3px solid var(--teal); padding: 18px 22px; margin: 20px 0; }
.policy-difference h3 { font-size: 20px; margin-top: 0; }
.policy-difference p { margin-bottom: 0; }
.result-banner.neutral { background: var(--surface); border-color: var(--border-strong); }
.print-transcript { display: none; }
@media (max-width: 700px) {
  .shell { padding-inline: 18px; }
  .header-layout { padding-block: 16px; }
  .revision-label { display: none; }
  .title-row h1 { font-size: 35px; }
  .model-badge { font-size: 10px; padding: 4px 7px; }
  .subtitle { font-size: 15px; }
  .byline { font-size: 13px; }
  .route-nav { gap: 4px 18px; }
  .route-nav a { font-size: 14px; }
  .main-content { padding-top: 25px; }
  .learning-intro h2 { font-size: 35px; }
  .learning-intro > p:not(.eyebrow) { font-size: 17px; }
  .learning-foundation { display: block; }
  .featured-case { flex-direction: column; align-items: flex-start; padding: 21px; gap: 20px; }
  .featured-case h3 { font-size: 27px; }
  .case-library, .case-definition-grid, .evidence-grid, .glossary-grid { grid-template-columns: 1fr; }
  .essay-map { padding: 16px 18px; }
  .essay-map h3 { font-size: 24px; }
  .case-card { padding: 21px; }
  .case-progress { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; margin-bottom: 20px; }
  .case-step { font-size: 13px; padding: 8px 5px; }
  .case-topbar { flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
  .case-topbar .field-help { display: none; }
  .case-stage-heading h2 { font-size: 29px; }
  .simulation-clock { margin-bottom: 10px; font-size: 14px; }
  .case-result, .authored-decision { padding: 18px; }
  .case-result h3 { font-size: 27px; }
  .case-question { font-size: 19px; }
  .case-definition-grid dd { font-size: 16px; }
  .lesson-navigation { flex-wrap: wrap; }
  .tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tab-button { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media (forced-colors: active) {
  .case-step[aria-current="step"], .case-result, .featured-case { border: 2px solid CanvasText; }
  .route-nav a[aria-current="location"] { text-decoration-color: LinkText; }
}
@media print {
  .site-header, .reference-status, .site-footer, .case-topbar, .case-progress, .lesson-navigation, .lesson-actions, .learning-live, .learning-glossary, .case-workspace > :not(.print-transcript), .version-note, .essay-map { display: none !important; }
  .print-transcript { display: block !important; white-space: pre-wrap; color: #111; background: #fff; font: 11pt/1.5 Georgia, serif; }
  .case-workspace, #learning-content, #learning-root { display: block; }
  .technical-details, .case-context { background: white; color: black; border-color: #999; }
}

.learning-foundation { color: var(--muted); max-width: 76ch; margin: 24px 0; font-size: 16px; }
@media (max-width: 700px) {
  .title-row { flex-direction: row; align-items: center; gap: 12px; }
  .model-badge { margin: 0; }
  .route-nav { gap: 3px 14px; }
  .route-nav a { font-size: 14px; }
  .learning-intro h2 { font-size: 35px; margin: 10px 0 14px; }
  .learning-intro { margin-bottom: 22px; }
  .reference-status__copy { font-size: 13px; }
  .featured-case h3 { font-size: 26px; }
}

/* Plain-language summaries and labelled JSON views (2026-09-30.1). */
.inspect-summary { background: var(--teal-bg); border-left: 3px solid var(--teal); color: var(--ink); padding: 10px 14px; margin-block: 8px 14px; max-width: 76ch; }
.json-view { margin: 14px 0 0; }
.json-caption { display: block; color: var(--muted); font-size: 15px; font-weight: 600; margin: 0 0 6px; }
.json-view pre { margin-top: 0; }
.case-library-heading p { max-width: 76ch; }

/* Small screens: the version stays in the header, and the first case and its first action fit above the fold. */
@media (max-width: 840px) {
  .header-layout { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 0 14px; }
  .identity-block { display: contents; }
  .title-row { grid-column: 1; grid-row: 1; }
  .revision-label { display: block; grid-column: 2; grid-row: 1; margin: 0; font-size: 12px; line-height: 1.35; }
  .subtitle, .byline, .route-nav { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .header-layout { padding-block: 10px 6px; }
  .model-badge { display: none; }
  .title-row h1 { font-size: 32px; }
  .subtitle { font-size: 14px; margin: 4px 0 0; }
  .byline { font-size: 13px; margin: 1px 0 4px; }
  .route-nav a { padding-block: 5px; }
  .main-content { padding-top: 16px; }
  .learning-intro { margin-bottom: 16px; }
  /* The eyebrow repeats the heading's question; on a phone the heading carries it alone. */
  .learning-intro > .eyebrow { display: none; }
  .learning-intro h2 { font-size: 30px; margin: 4px 0 8px; }
  .learning-intro > p:not(.eyebrow) { font-size: 16px; margin: 0; }
  .featured-case { padding: 16px 18px; gap: 12px; }
  .featured-case h3 { font-size: 25px; margin: 2px 0 6px; }
}