@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,500;0,600;1,500&family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600&display=swap");

:root {
  color-scheme: dark;
  --bg: #0d1117;
  --surface: #11161d;
  --surface-elevated: #161c24;
  --ink: #f5f1e8;
  --ink-soft: #b8b4ac;
  --ink-muted: #7d7a73;
  --rule: #252d37;
  --rule-strong: #3b4653;
  --blue: #7ba5d4;
  --blue-strong: #a8c8eb;
  --brass: #d4a574;
  --brass-strong: #e8b884;
  --lime: #c7f43d;
  --danger: #e58473;
  --allowed: #9bc58f;
  --reduced: #d4a574;
  --denied: #c77e72;
  --max-width: 1320px;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
  --mono: "DM Mono", Consolas, monospace;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f1e8;
  --surface: #ece8df;
  --surface-elevated: #ffffff;
  --ink: #17202a;
  --ink-soft: #4e565e;
  --ink-muted: #74736d;
  --rule: #d8d2c7;
  --rule-strong: #aaa399;
  --blue: #416f9f;
  --blue-strong: #285d91;
  --brass: #9b6636;
  --brass-strong: #7f4d23;
  --lime: #5b7e00;
  --danger: #a74b3d;
  --allowed: #43753a;
  --reduced: #8b5a2b;
  --denied: #9c4438;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--blue-strong);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  transform: translateY(-150%);
  border: 1px solid var(--blue);
  border-radius: 4px;
  background: var(--surface-elevated);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.section {
  padding-block: 112px;
}

.section--ruled {
  border-block: 1px solid var(--rule);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--bg) 93%, transparent);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(calc(100% - 48px), var(--max-width));
  min-height: 72px;
  margin-inline: auto;
  gap: 32px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  text-decoration: none;
}

.primary-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
}

.primary-nav a,
.sierra-link {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.primary-nav a:hover,
.sierra-link:hover {
  color: var(--ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.icon-button {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 20px;
}

.icon-button:hover {
  border-color: var(--blue);
  color: var(--blue-strong);
}

.hero {
  display: flex;
  min-height: calc(100vh - 72px);
  align-items: center;
  padding-block: 92px 72px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(440px, 0.95fr);
  align-items: center;
  gap: 80px;
}

.eyebrow,
.utility-label {
  margin: 0;
  color: var(--brass-strong);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 830px;
  margin: 24px 0 28px;
  font-family: var(--serif);
  font-size: 78px;
  font-weight: 500;
  line-height: 0.94;
}

.hero h1 em {
  color: var(--brass-strong);
  font-weight: 500;
}

.hero__lede {
  max-width: 690px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 20px;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 18px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.button--primary {
  border-color: var(--brass);
  background: var(--brass);
  color: #11161d;
}

.button--primary:hover {
  border-color: var(--brass-strong);
  background: var(--brass-strong);
}

.button--quiet {
  background: transparent;
  color: var(--ink);
}

.button--quiet:hover {
  border-color: var(--blue);
  color: var(--blue-strong);
}

.button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.packet-figure {
  border-left: 1px solid var(--rule-strong);
  padding-left: 46px;
}

.packet-figure__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.packet-caption {
  max-width: 220px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  text-align: right;
}

.packet-track {
  position: relative;
  display: grid;
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
}

.packet-track::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 19px;
  width: 1px;
  background: var(--rule-strong);
  content: "";
}

.packet-track li {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  min-height: 68px;
  align-content: center;
  padding: 10px 10px 10px 0;
  border-bottom: 1px solid var(--rule);
  transition: color 180ms ease, border-color 180ms ease;
}

.packet-track li > span {
  grid-row: 1 / 3;
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
}

.packet-track li strong {
  font-size: 16px;
}

.packet-track li small {
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
}

.packet-track li.is-active {
  border-color: var(--brass);
  color: var(--brass-strong);
}

.packet-track li.is-past {
  color: var(--blue-strong);
}

.context-packet {
  position: absolute;
  top: 23px;
  left: 14px;
  display: grid;
  width: 12px;
  height: 12px;
  place-items: center;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: var(--brass-strong);
  box-shadow: 0 0 0 1px var(--brass);
  transition: transform 480ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.text-command {
  min-height: 44px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
}

.text-command:hover {
  border-color: var(--blue);
  color: var(--blue-strong);
}

.text-command--small {
  min-height: 36px;
  font-size: 11px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 56px;
}

.section-heading--split {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.65fr);
  align-items: end;
  gap: 64px;
}

.section-heading h2 {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-size: 58px;
  font-weight: 500;
  line-height: 1.03;
}

.section-heading > p,
.section-heading--split > p {
  margin: 0;
  color: var(--ink-soft);
}

.section-heading .eyebrow + h2 + p {
  margin-top: 22px;
}

.editorial-sequence {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
  list-style: none;
}

.editorial-sequence li {
  display: grid;
  grid-template-columns: 120px 260px minmax(0, 1fr);
  gap: 28px;
  padding-block: 32px;
  border-bottom: 1px solid var(--rule);
}

.editorial-sequence li > div {
  display: contents;
}

.sequence-number {
  color: var(--brass);
  font-family: var(--serif);
  font-size: 34px;
  font-style: italic;
}

.editorial-sequence h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
}

.editorial-sequence p {
  max-width: 680px;
  margin: 0;
  color: var(--ink-soft);
}

.demo-tool {
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  background: var(--surface);
  overflow: hidden;
}

.demo-toolbar {
  display: flex;
  min-height: 62px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--rule);
}

.demo-toolbar > div {
  display: flex;
  gap: 22px;
}

.demo-progress-label {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 12px;
}

.demo-stepper {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-bottom: 1px solid var(--rule);
}

.demo-stepper button {
  display: grid;
  min-height: 70px;
  align-content: center;
  gap: 2px;
  padding: 10px 16px;
  border: 0;
  border-right: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-muted);
  text-align: left;
  cursor: pointer;
}

.demo-stepper button:last-child {
  border-right: 0;
}

.demo-stepper button span {
  font-family: var(--mono);
  font-size: 10px;
}

.demo-stepper button[aria-selected="true"] {
  background: var(--surface-elevated);
  box-shadow: inset 0 3px 0 var(--brass);
  color: var(--ink);
}

.demo-stepper button.is-complete {
  color: var(--blue-strong);
}

.demo-body {
  display: grid;
  grid-template-columns: minmax(320px, 0.75fr) minmax(0, 1.25fr);
  min-height: 520px;
}

.stage-copy {
  display: flex;
  flex-direction: column;
  padding: 44px;
  border-right: 1px solid var(--rule);
}

.stage-copy h3 {
  margin: 20px 0 16px;
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 500;
  line-height: 1.04;
}

.stage-copy > p:not(.utility-label) {
  margin: 0;
  color: var(--ink-soft);
}

.stage-callout {
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}

.stage-callout p {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.status-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 9px;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.status-tag--request { border-color: var(--blue); color: var(--blue-strong); }
.status-tag--private { border-color: var(--ink-muted); color: var(--ink); }
.status-tag--reduced { border-color: var(--brass); color: var(--brass-strong); }
.status-tag--allowed { border-color: var(--allowed); color: var(--allowed); }
.status-tag--recorded { border-color: var(--blue); color: var(--blue-strong); }
.status-tag--proposal { border-color: var(--brass); color: var(--brass-strong); }

.stage-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
  padding-top: 34px;
}

.field-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px minmax(0, 1fr);
  align-items: stretch;
  padding: 44px;
}

.field-column {
  min-width: 0;
}

.field-column__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.field-column__head small {
  color: var(--ink-muted);
  font-size: 10px;
}

.field-column ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.field-column li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  min-height: 56px;
  align-items: center;
  padding-block: 10px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.field-column li small {
  color: var(--ink-muted);
  font-size: 9px;
  text-transform: uppercase;
}

.field-column li[data-state="private"] small { color: var(--ink-soft); }
.field-column li[data-state="allowed"] small { color: var(--allowed); }
.field-column li[data-state="reduced"] small { color: var(--reduced); }
.field-column li[data-state="denied"] { color: var(--ink-muted); text-decoration: line-through; }
.field-column li[data-state="denied"] small { color: var(--denied); text-decoration: none; }

.field-arrow {
  display: grid;
  place-items: center;
  color: var(--brass);
}

.disclosure-row {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(240px, 1fr) 54px;
  align-items: center;
  gap: 24px;
  padding: 24px;
  border-top: 1px solid var(--rule);
}

.disclosure-row > div:first-child {
  display: grid;
}

.disclosure-row strong {
  margin-top: 4px;
  font-size: 14px;
}

.meter {
  height: 8px;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
}

.meter span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--brass);
  transition: width 380ms ease;
}

.meter-value {
  font-family: var(--mono);
  font-size: 12px;
  text-align: right;
}

.protocol-data {
  border-top: 1px solid var(--rule);
}

.protocol-data summary {
  min-height: 48px;
  padding: 12px 24px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
}

.protocol-data pre {
  max-height: 360px;
  margin: 0;
  padding: 24px;
  overflow: auto;
  border-top: 1px solid var(--rule);
  background: var(--bg);
  color: var(--blue-strong);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.65;
}

.layer-explorer {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 560px;
  border-block: 1px solid var(--rule-strong);
}

.layer-tabs {
  display: grid;
  align-content: start;
  border-right: 1px solid var(--rule-strong);
}

.layer-tabs button {
  display: grid;
  grid-template-columns: 44px 1fr;
  min-height: 76px;
  align-items: center;
  padding: 12px 20px;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  text-align: left;
  cursor: pointer;
}

.layer-tabs button span {
  color: var(--ink-muted);
  font-family: var(--serif);
  font-size: 24px;
  font-style: italic;
}

.layer-tabs button[aria-selected="true"] {
  background: var(--surface);
  box-shadow: inset 3px 0 0 var(--brass);
  color: var(--ink);
}

.layer-panel {
  padding: 42px 48px;
}

.layer-panel__intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.65fr);
  gap: 48px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--rule);
}

.layer-panel__intro h3 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 500;
}

.layer-panel__intro p {
  margin: 0;
  color: var(--ink-soft);
}

.layer-nodes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.layer-nodes li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  min-height: 120px;
  align-content: center;
  padding: 22px 24px 22px 0;
  border-bottom: 1px solid var(--rule);
}

.layer-nodes li:nth-child(odd) {
  border-right: 1px solid var(--rule);
}

.layer-nodes li:nth-child(even) {
  padding-left: 24px;
}

.node-index {
  color: var(--brass);
  font-family: var(--mono);
  font-size: 10px;
}

.layer-nodes h4 {
  margin: 0;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
}

.layer-nodes p {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.layer-nodes small {
  display: block;
  margin-top: 8px;
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 10px;
}

.map-reference {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-block: 28px;
}

.map-reference p {
  margin: 0;
  color: var(--ink-soft);
}

.map-reference > div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.guide-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.75fr) minmax(0, 1.25fr);
  gap: 76px;
}

.guide-grid .section-heading {
  margin: 0;
}

.guide-tool {
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  background: var(--surface);
  overflow: hidden;
}

.guide-status,
.voice-controls {
  display: flex;
  min-height: 52px;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
}

.prompt-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--rule);
}

.prompt-list button {
  min-height: 38px;
  padding: 7px 10px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
}

.prompt-list button:hover {
  border-color: var(--blue);
  color: var(--blue-strong);
}

.guide-transcript {
  min-height: 170px;
  max-height: 280px;
  padding: 22px 24px;
  overflow: auto;
}

.guide-transcript p {
  margin: 0 0 18px;
  color: var(--ink-soft);
}

.guide-transcript p:last-child {
  margin-bottom: 0;
}

.guide-transcript strong {
  display: block;
  margin-bottom: 3px;
  color: var(--brass-strong);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.guide-transcript .is-user strong {
  color: var(--blue-strong);
}

.guide-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 16px 18px;
  border-top: 1px solid var(--rule);
}

.guide-form input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink);
}

.guide-form input::placeholder {
  color: var(--ink-muted);
}

.voice-controls {
  justify-content: space-between;
  border-top: 1px solid var(--rule);
  border-bottom: 0;
}

.voice-controls label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.reference-list {
  border-top: 1px solid var(--rule-strong);
}

.reference-list a {
  display: grid;
  grid-template-columns: 70px minmax(220px, 0.7fr) minmax(260px, 1fr) 30px;
  align-items: center;
  gap: 22px;
  min-height: 92px;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.reference-list a:hover strong,
.reference-list a:hover b {
  color: var(--blue-strong);
}

.reference-list span,
.reference-list small {
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
}

.reference-list strong {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
}

.reference-list b {
  font-size: 18px;
  font-weight: 400;
  text-align: right;
}

.status-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 22px;
  max-width: 860px;
  margin-top: 40px;
}

.status-note p {
  margin: 0;
  color: var(--ink-soft);
}

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 34px;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
}

.site-footer p {
  margin: 0;
}

.site-footer a:hover {
  color: var(--blue-strong);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 1080px) {
  .primary-nav { gap: 18px; }
  .sierra-link { display: none; }
  .hero__grid { grid-template-columns: 1fr 0.8fr; gap: 48px; }
  .hero h1 { font-size: 64px; }
  .section-heading h2 { font-size: 50px; }
  .guide-grid { gap: 48px; }
}

@media (max-width: 860px) {
  .site-header__inner { grid-template-columns: 1fr auto; min-height: 64px; }
  .primary-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    gap: 22px;
    padding-bottom: 12px;
    overflow-x: auto;
  }
  .primary-nav a { flex: 0 0 auto; }
  .header-actions { grid-column: 2; grid-row: 1; }
  .hero { min-height: auto; }
  .hero__grid,
  .section-heading--split,
  .guide-grid { grid-template-columns: 1fr; }
  .packet-figure { border-left: 0; padding-left: 0; border-top: 1px solid var(--rule-strong); padding-top: 34px; }
  .editorial-sequence li { grid-template-columns: 72px 180px minmax(0, 1fr); }
  .demo-body { grid-template-columns: 1fr; }
  .stage-copy { min-height: 410px; border-right: 0; border-bottom: 1px solid var(--rule); }
  .layer-explorer { grid-template-columns: 1fr; }
  .layer-tabs { grid-template-columns: repeat(5, minmax(140px, 1fr)); overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--rule-strong); }
  .layer-tabs button { border-right: 1px solid var(--rule); border-bottom: 0; }
  .layer-tabs button[aria-selected="true"] { box-shadow: inset 0 3px 0 var(--brass); }
  .guide-grid .section-heading { margin-bottom: 0; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .shell,
  .site-header__inner { width: min(calc(100% - 32px), var(--max-width)); }
  .section { padding-block: 76px; }
  .site-header__inner { gap: 8px 18px; }
  .primary-nav { gap: 18px; }
  .hero { padding-block: 70px 64px; }
  .hero h1 { margin-top: 18px; font-size: 50px; line-height: 0.98; }
  .hero__lede { font-size: 17px; }
  .hero__actions { display: grid; }
  .packet-figure__head { display: grid; }
  .packet-caption { max-width: none; text-align: left; }
  .section-heading { margin-bottom: 38px; }
  .section-heading--split { gap: 20px; }
  .section-heading h2 { font-size: 42px; }
  .editorial-sequence li { grid-template-columns: 54px 1fr; gap: 14px; }
  .editorial-sequence li > div { display: block; }
  .editorial-sequence h3 { font-size: 28px; }
  .editorial-sequence p { margin-top: 8px; }
  .demo-toolbar { padding-inline: 16px; }
  .demo-toolbar > div { display: grid; gap: 0; }
  .demo-stepper { grid-template-columns: repeat(6, minmax(92px, 1fr)); overflow-x: auto; }
  .demo-stepper button { min-height: 64px; padding-inline: 12px; }
  .stage-copy,
  .field-comparison { padding: 28px 20px; }
  .stage-copy { min-height: 460px; }
  .stage-copy h3 { font-size: 36px; }
  .stage-actions { display: grid; }
  .field-comparison { grid-template-columns: 1fr; }
  .field-arrow { min-height: 44px; transform: rotate(90deg); }
  .disclosure-row { grid-template-columns: 1fr 50px; gap: 12px; }
  .disclosure-row > div:first-child { grid-column: 1 / -1; }
  .layer-panel { padding: 30px 20px; }
  .layer-panel__intro,
  .layer-nodes { grid-template-columns: 1fr; }
  .layer-panel__intro { gap: 18px; }
  .layer-panel__intro h3 { font-size: 36px; }
  .layer-nodes li,
  .layer-nodes li:nth-child(even) { padding: 20px 0; border-right: 0; }
  .map-reference { display: grid; }
  .map-reference > div { display: grid; }
  .guide-form { grid-template-columns: 1fr; }
  .voice-controls { align-items: flex-start; flex-direction: column; }
  .reference-list a { grid-template-columns: 42px 1fr 24px; gap: 12px; padding-block: 20px; }
  .reference-list small { grid-column: 2; }
  .reference-list b { grid-column: 3; grid-row: 1; }
  .status-note { grid-template-columns: 1fr; }
  .site-footer__inner { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}