:root {
  color-scheme: light;
  --paper: #f5f4ef;
  --paper-bright: #fbfaf6;
  --ink: #14201f;
  --muted: #5d6966;
  --line: #d7dbd5;
  --line-strong: #bfc7c1;
  --teal: #0e7068;
  --teal-dark: #07544f;
  --teal-soft: #d8ece8;
  --blue: #315fa4;
  --blue-soft: #dfe8f7;
  --amber: #aa681b;
  --amber-soft: #f5e7cf;
  --red: #a74438;
  --red-soft: #f2ded8;
  --charcoal: #14201f;
  --white: #ffffff;
  --topbar-height: 58px;
  --controls-height: 52px;
  --rail-width: 44px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Arial Narrow", "Avenir Next Condensed", Inter, ui-sans-serif, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
}

.skip-link:focus {
  transform: none;
}

.topbar {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  height: var(--topbar-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 28px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--paper-bright) 92%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: var(--ink);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  position: relative;
  width: 18px;
  height: 18px;
  border: 5px solid var(--teal);
  border-right-color: var(--blue);
  border-radius: 50%;
}

.topbar-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.topbar-meta a {
  color: var(--teal);
  text-decoration: none;
}

.topbar-meta a:hover {
  color: var(--teal-dark);
}

.meta-divider {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line-strong);
}

.icon-button {
  justify-self: end;
  width: 34px;
  height: 34px;
  display: grid;
  grid-template-columns: repeat(2, 5px);
  place-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.icon-button span {
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: currentColor;
}

.icon-button:hover {
  border-color: var(--ink);
  background: var(--white);
}

.rail {
  position: fixed;
  z-index: 40;
  top: var(--topbar-height);
  bottom: var(--controls-height);
  left: 0;
  width: var(--rail-width);
  display: flex;
  align-items: center;
  justify-content: center;
}

.rail ol {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rail button {
  display: block;
  width: 5px;
  height: 5px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--line-strong);
  cursor: pointer;
  transition: height 180ms ease, background 180ms ease, border-radius 180ms ease;
}

.rail button:hover {
  background: var(--muted);
}

.rail button[aria-current="true"] {
  height: 19px;
  border-radius: 5px;
  background: var(--teal);
}

.deck {
  position: relative;
}

.slide {
  position: relative;
  min-height: 100svh;
  display: flex;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.slide:nth-child(even):not(.closing-slide) {
  background: var(--paper-bright);
}

.slide-inner {
  width: min(1260px, calc(100vw - 130px));
  min-height: calc(100svh - var(--topbar-height) - var(--controls-height));
  margin: var(--topbar-height) auto var(--controls-height);
  padding: clamp(40px, 6vh, 76px) 20px 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(22px, 3vh, 34px);
}

.slide-footer {
  position: absolute;
  right: 26px;
  bottom: calc(var(--controls-height) + 14px);
  display: flex;
  gap: 10px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.slide-footer span:first-child {
  color: var(--teal);
}

.section-heading {
  max-width: 960px;
}

.section-heading h2,
.overview-header h2 {
  margin: 5px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(36px, 4.6vw, 66px);
  font-stretch: condensed;
  font-weight: 760;
  letter-spacing: -.05em;
  line-height: .98;
}

.section-heading > p:last-child {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 1.5vw, 19px);
  line-height: 1.5;
}

.compact-heading {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.eyebrow,
.mini-label,
.model-tier {
  display: block;
  margin: 0;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.hero-slide {
  background: var(--charcoal);
  color: var(--white);
}

.hero-slide::before,
.closing-slide::before {
  content: "";
  position: absolute;
  width: min(70vw, 920px);
  aspect-ratio: 1;
  top: 50%;
  right: -18%;
  transform: translateY(-50%);
  border: 1px solid color-mix(in srgb, var(--teal-soft) 24%, transparent);
  border-radius: 50%;
}

.hero-slide::after,
.closing-slide::after {
  content: "";
  position: absolute;
  width: min(48vw, 640px);
  aspect-ratio: 1;
  top: 50%;
  right: -7%;
  transform: translateY(-50%);
  border: 1px solid color-mix(in srgb, var(--blue-soft) 24%, transparent);
  border-radius: 50%;
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, black, transparent 72%);
}

.hero-content {
  position: relative;
  z-index: 2;
  align-items: flex-start;
}

.hero-content .eyebrow,
.closing-content .eyebrow {
  color: #8ed8cf;
}

.hero-content h1 {
  max-width: 1020px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(64px, 8.5vw, 126px);
  font-stretch: condensed;
  font-weight: 760;
  letter-spacing: -.065em;
  line-height: .82;
}

.hero-lede {
  max-width: 810px;
  margin: 2px 0 0;
  color: #c6cecb;
  font-size: clamp(16px, 1.65vw, 22px);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.primary-button,
.secondary-button {
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--teal);
  border-radius: 999px;
  background: var(--teal);
  color: var(--white);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.primary-button:hover {
  background: #11877d;
}

.secondary-button {
  border-color: rgba(255,255,255,.35);
  background: transparent;
}

.secondary-button:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.08);
}

.keyboard-hint {
  color: #9caaa6;
  font-size: 12px;
}

kbd {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  place-content: center;
  margin: 0 2px;
  border: 1px solid #52615d;
  border-radius: 5px;
  color: #dce2e0;
  font-family: var(--font-sans);
  font-size: 11px;
}

.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 6px;
  border-top: 1px solid rgba(255,255,255,.16);
}

.hero-stats div {
  min-width: 175px;
  padding: 16px 28px 0 0;
}

.hero-stats div + div {
  padding-left: 28px;
  border-left: 1px solid rgba(255,255,255,.16);
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 24px;
}

.hero-stats span {
  margin-top: 4px;
  color: #9caaa6;
  font-size: 11px;
}

.hero-slide .slide-footer,
.closing-slide .slide-footer {
  color: #87938f;
}

.hero-slide .slide-footer span:first-child,
.closing-slide .slide-footer span:first-child {
  color: #8ed8cf;
}

.split-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  min-height: 390px;
  padding: clamp(24px, 3vw, 38px);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.product-card-code {
  border-top-color: var(--blue);
}

.product-label,
.column-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 20px 0 10px;
  font-size: clamp(25px, 2.4vw, 34px);
  letter-spacing: -.035em;
}

.product-card > p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.clean-list {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.4;
}

.clean-list li::before {
  content: "";
  position: absolute;
  top: .42em;
  left: 0;
  width: 7px;
  height: 7px;
  border: 2px solid var(--teal);
  border-radius: 50%;
}

.product-card-code .clean-list li::before {
  border-color: var(--blue);
}

.audience {
  margin-top: auto;
  padding-top: 22px;
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 750;
}

.product-card-code .audience {
  color: var(--blue);
}

.recommendation-strip,
.principle-banner,
.survey-rule {
  display: grid;
  grid-template-columns: 180px 1fr;
  align-items: center;
  gap: 24px;
  padding: 18px 22px;
  border-left: 4px solid var(--teal);
  background: var(--teal-soft);
  font-size: 14px;
}

.recommendation-strip span,
.principle-banner span,
.survey-rule span {
  color: var(--teal-dark);
}

.shift-grid {
  display: grid;
  grid-template-columns: 1fr 54px 1fr;
  align-items: center;
}

.shift-column {
  display: grid;
  border-top: 1px solid var(--line);
}

.shift-column .column-label {
  padding: 0 16px 14px;
}

.shift-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 17px 16px;
  border-bottom: 1px solid var(--line);
}

.shift-item b {
  font-size: 13px;
}

.shift-item span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.shift-column-target {
  border-top-color: var(--teal);
  background: color-mix(in srgb, var(--teal-soft) 42%, transparent);
}

.shift-column-target .shift-item {
  border-color: color-mix(in srgb, var(--teal) 16%, transparent);
}

.shift-column-target .shift-item span {
  color: var(--teal-dark);
}

.shift-arrow {
  position: relative;
  height: 1px;
  background: var(--teal);
}

.shift-arrow::after {
  content: "";
  position: absolute;
  top: -4px;
  right: 0;
  width: 8px;
  height: 8px;
  border-top: 1px solid var(--teal);
  border-right: 1px solid var(--teal);
  transform: rotate(45deg);
}

.pull-quote {
  margin: 0;
  padding: 4px 0;
  color: var(--ink);
  font-family: Georgia, serif;
  font-size: clamp(21px, 2.2vw, 30px);
  font-style: italic;
  text-align: center;
}

.billing-toggle {
  display: flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
}

.billing-toggle button {
  padding: 8px 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.billing-toggle button.is-selected {
  background: var(--ink);
  color: var(--white);
}

.calculator {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(250px, .7fr);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
}

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

.seat-control {
  padding: clamp(25px, 3vw, 38px);
}

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

.seat-control-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.seat-control h3 {
  margin: 5px 0 0;
  font-size: 21px;
}

.seat-control output {
  color: var(--teal);
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -.04em;
}

.seat-control label {
  display: block;
  margin-top: 27px;
}

.seat-control label > span {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.seat-control label b {
  color: var(--ink);
  font-size: 14px;
}

input[type="range"] {
  width: 100%;
  height: 4px;
  appearance: none;
  border-radius: 999px;
  background: var(--line);
  accent-color: var(--teal);
}

input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  appearance: none;
  border: 3px solid var(--white);
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 1px var(--teal);
  cursor: grab;
}

.seat-control > p {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.calculator-summary {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(26px, 3vw, 38px);
  background: var(--charcoal);
  color: var(--white);
}

.calculator-summary .mini-label {
  color: #8ed8cf;
}

.calculator-summary > strong {
  margin-top: 8px;
  font-size: clamp(42px, 5vw, 66px);
  letter-spacing: -.06em;
}

.calculator-summary > span:not(.mini-label) {
  color: #aab5b1;
  font-size: 12px;
}

.summary-rule {
  height: 1px;
  margin: 24px 0;
  background: #394541;
}

.calculator-summary > p {
  margin: 0;
  color: #9eaaa6;
  font-size: 11px;
  line-height: 1.5;
}

.seat-note {
  margin-top: 28px;
  padding: 15px;
  border: 1px solid #40504b;
  border-radius: 10px;
}

.seat-note b,
.seat-note span {
  display: block;
  font-size: 11px;
  line-height: 1.5;
}

.seat-note span {
  margin-top: 4px;
  color: #9eaaa6;
}

.comparison-table-wrap,
.harness-table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.comparison-table th,
.comparison-table td {
  padding: 15px 17px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  line-height: 1.4;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.comparison-table th {
  background: color-mix(in srgb, var(--ink) 4%, transparent);
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.comparison-table th:first-child {
  width: 18%;
}

.comparison-table td:first-child {
  font-weight: 700;
}

.comparison-table td:nth-child(2) {
  color: var(--muted);
}

.comparison-table td:nth-child(3) {
  background: color-mix(in srgb, var(--teal-soft) 35%, transparent);
  color: var(--teal-dark);
}

.callout-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.callout {
  min-height: 76px;
  display: grid;
  grid-template-columns: 170px 1fr;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.callout span {
  color: var(--muted);
  line-height: 1.45;
}

.callout-positive {
  border-color: color-mix(in srgb, var(--teal) 26%, var(--line));
  background: color-mix(in srgb, var(--teal-soft) 36%, transparent);
}

.callout-caution {
  border-color: color-mix(in srgb, var(--amber) 22%, var(--line));
  background: color-mix(in srgb, var(--amber-soft) 44%, transparent);
}

.model-ladder {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: stretch;
  gap: 10px;
}

.model-ladder article {
  min-height: 180px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}

.model-ladder article:nth-child(1) {
  opacity: .72;
}

.model-ladder .model-featured {
  border-top: 4px solid var(--teal);
}

.model-ladder h3 {
  margin: 23px 0 9px;
  font-size: 18px;
  line-height: 1.1;
}

.model-ladder p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.benchmark-panel {
  display: grid;
  grid-template-columns: .8fr 1.4fr;
  align-items: center;
  gap: 28px;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: var(--charcoal);
  color: var(--white);
}

.benchmark-panel .mini-label {
  color: #8ed8cf;
}

.benchmark-panel h3 {
  margin: 5px 0 0;
  font-size: 17px;
}

.mini-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.mini-table th,
.mini-table td {
  padding: 8px 10px;
  border-bottom: 1px solid #3b4844;
  text-align: right;
}

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

.mini-table th {
  color: #9faaa7;
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.mini-table b {
  color: #8ed8cf;
}

.fine-print {
  margin: -18px 0 0;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.4;
}

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

.capability-grid article {
  min-height: 205px;
  display: flex;
  flex-direction: column;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}

.capability-grid article > span {
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
}

.capability-grid h3 {
  margin: 12px 0 8px;
  font-size: 17px;
}

.capability-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.capability-grid b {
  margin-top: auto;
  padding-top: 14px;
  color: var(--teal);
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.source-chip,
.plan-chip {
  width: fit-content;
  padding: 7px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.bar-chart {
  display: grid;
  gap: 8px;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(200px, 3fr) 54px 58px;
  align-items: center;
  gap: 12px;
  font-size: 11px;
}

.bar-row > span {
  overflow: hidden;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-row > div {
  height: 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--line) 70%, transparent);
  overflow: hidden;
}

.bar-row i {
  display: block;
  width: calc(var(--score) * 1%);
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
}

.bar-row:nth-child(2) i,
.bar-row:nth-child(3) i {
  background: var(--blue);
}

.bar-row:nth-child(4) i,
.bar-row:nth-child(5) i,
.bar-row:nth-child(8) i {
  background: #6689bd;
}

.bar-row b {
  text-align: right;
}

.bar-row em {
  color: var(--muted);
  font-size: 10px;
  font-style: normal;
  text-align: right;
}

.chart-legend {
  display: flex;
  justify-content: space-between;
  margin-top: -15px;
  color: var(--muted);
  font-size: 9px;
}

.harness-table th:first-child {
  width: 20%;
}

.harness-table td:nth-child(2),
.harness-table td:nth-child(3) {
  color: var(--ink);
  background: transparent;
}

.harness-table .recommended-row td {
  background: color-mix(in srgb, var(--teal-soft) 42%, transparent);
}

.tag {
  display: inline-block;
  margin-left: 8px;
  padding: 3px 6px;
  border-radius: 999px;
  background: var(--teal);
  color: var(--white);
  font-size: 8px;
  letter-spacing: .05em;
  text-transform: uppercase;
  vertical-align: 2px;
}

.harness-note {
  padding: 16px 20px;
  border-left: 4px solid var(--blue);
  background: var(--blue-soft);
  color: #29466f;
  font-size: 12px;
  line-height: 1.5;
}

.steering-flow {
  counter-reset: steering;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.steering-flow article {
  position: relative;
  min-height: 190px;
  padding: 22px;
  border-top: 3px solid var(--teal);
  background: var(--white);
}

.steering-flow article:nth-child(2),
.steering-flow article:nth-child(5) {
  border-top-color: var(--blue);
}

.steering-flow article:nth-child(3),
.steering-flow article:nth-child(6) {
  border-top-color: var(--amber);
}

.steering-flow article > span {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.steering-flow h3 {
  margin: 18px 0 8px;
  font-size: 16px;
}

.steering-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.pilot-cost {
  text-align: right;
}

.pilot-cost span,
.pilot-cost b {
  display: block;
}

.pilot-cost span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.pilot-cost b {
  margin-top: 4px;
  color: var(--teal);
  font-size: 24px;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.timeline::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 29px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--line-strong);
}

.timeline article {
  position: relative;
  z-index: 1;
  min-height: 300px;
  padding: 0 18px 22px;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--white);
}

.timeline-week {
  width: fit-content;
  height: 58px;
  display: flex;
  align-items: center;
  margin: 0 auto 26px;
  padding: 0 11px;
  border: 1px solid var(--teal);
  border-radius: 999px;
  background: var(--paper-bright);
  color: var(--teal);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .04em;
  text-align: center;
  text-transform: uppercase;
}

.timeline h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.measurement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.measurement-grid article {
  display: grid;
  grid-template-columns: 46px 160px 1fr;
  align-items: center;
  gap: 15px;
  min-height: 100px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}

.measure-number {
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
}

.measurement-grid h3 {
  margin: 0;
  font-size: 15px;
}

.measurement-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.measurement-grid .measure-wide {
  grid-column: 1 / -1;
  grid-template-columns: 46px 160px 1fr;
  background: var(--charcoal);
  color: var(--white);
}

.formula {
  display: flex;
  align-items: center;
  gap: 13px;
}

.formula span {
  padding: 10px 13px;
  border: 1px solid #44524e;
  border-radius: var(--radius-sm);
  color: #c8cfcc;
  font-size: 10px;
  text-align: center;
}

.formula > b {
  color: #71807b;
}

.formula strong {
  margin-left: auto;
  color: #8ed8cf;
  font-size: 15px;
}

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

.milestone-columns > article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.milestone-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--charcoal);
  color: var(--white);
}

.milestone-header span {
  font-size: 18px;
  font-weight: 800;
}

.milestone-header b {
  color: #8ed8cf;
  font-size: 11px;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.metric-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.metric-list li {
  display: grid;
  grid-template-columns: 105px 1fr;
  align-items: center;
  gap: 14px;
  min-height: 58px;
  padding: 8px 24px;
  border-bottom: 1px solid var(--line);
}

.metric-list li:last-child {
  border-bottom: 0;
}

.metric-list strong {
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 25px;
}

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

.survey-timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.survey-timeline article {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
}

.survey-timeline article > span {
  width: fit-content;
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.survey-timeline h3 {
  margin: 25px 0 8px;
  font-size: 25px;
}

.survey-timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.survey-timeline b {
  margin-top: auto;
  padding-top: 18px;
  color: var(--teal);
  font-size: 11px;
}

.survey-slide .slide-inner {
  gap: 20px;
}

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

.question-grid ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: question;
}

.question-grid ol[start="6"] {
  counter-reset: question 5;
}

.question-grid ol[start="7"] {
  counter-reset: question 6;
}

.question-grid li {
  counter-increment: question;
  position: relative;
  min-height: 57px;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 14px;
  padding: 10px 12px 10px 48px;
  border-bottom: 1px solid var(--line);
}

.question-grid li::before {
  content: counter(question, decimal-leading-zero);
  position: absolute;
  top: 12px;
  left: 10px;
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
}

.question-grid li b {
  font-size: 11px;
}

.question-grid li span {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.target-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--charcoal);
  color: #c5ceca;
  font-size: 10px;
}

.target-strip span {
  padding: 0 17px;
  text-align: center;
}

.target-strip span + span {
  border-left: 1px solid #41504b;
}

.target-strip b {
  color: #8ed8cf;
}

.gate-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.gate-grid article {
  min-height: 230px;
  padding: 20px;
  border-top: 5px solid var(--teal);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.gate-grid article:nth-child(2) {
  border-top-color: var(--blue);
}

.gate-grid article:nth-child(3) {
  border-top-color: #6b7280;
}

.gate-grid article:nth-child(4) {
  border-top-color: var(--amber);
}

.gate-grid article:nth-child(5) {
  border-top-color: var(--red);
}

.gate-grid span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.gate-grid b {
  display: block;
  margin-top: 33px;
  font-size: 20px;
  line-height: 1.25;
}

.gate-grid p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.decision-scale {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--line);
}

.decision-scale > div {
  position: relative;
  padding: 17px 18px 17px 44px;
  background: var(--white);
}

.decision-scale b,
.decision-scale p {
  display: block;
  margin: 0;
  font-size: 11px;
}

.decision-scale p {
  margin-top: 4px;
  color: var(--muted);
}

.decision-dot {
  position: absolute;
  top: 20px;
  left: 18px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.decision-dot.scale {
  background: var(--teal);
}

.decision-dot.extend {
  background: var(--amber);
}

.decision-dot.stop {
  background: var(--red);
}

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

.governance-grid article {
  min-height: 360px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.governance-grid h3 {
  margin: 26px 0 25px;
  font-size: 28px;
}

.governance-grid .clean-list {
  gap: 16px;
}

.governance-grid .clean-list li {
  font-size: 13px;
}

.governance-enterprise {
  border-top: 5px solid var(--blue) !important;
}

.governance-enterprise .plan-chip {
  border-color: var(--blue);
  color: var(--blue);
}

.governance-enterprise .clean-list li::before {
  border-color: var(--blue);
}

.governance-note {
  margin: 0;
  color: var(--muted);
  font-family: Georgia, serif;
  font-size: 16px;
  font-style: italic;
  text-align: center;
}

.closing-slide {
  background: var(--charcoal);
  color: var(--white);
}

.closing-content {
  position: relative;
  z-index: 2;
  align-items: flex-start;
}

.closing-content h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(62px, 8vw, 112px);
  letter-spacing: -.06em;
  line-height: .86;
}

.ask-grid {
  width: min(970px, 100%);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 10px;
  border-top: 1px solid #3b4844;
  border-bottom: 1px solid #3b4844;
}

.ask-grid div {
  padding: 19px 19px 19px 0;
}

.ask-grid div + div {
  padding-left: 19px;
  border-left: 1px solid #3b4844;
}

.ask-grid span,
.ask-grid b,
.ask-grid small {
  display: block;
}

.ask-grid span {
  color: #8ed8cf;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.ask-grid b {
  margin-top: 7px;
  font-size: 19px;
}

.ask-grid small {
  margin-top: 4px;
  color: #929f9a;
  font-size: 9px;
}

.closing-line {
  margin: -3px 0 0;
  color: #aeb8b4;
  font-size: 15px;
}

.sources-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.sources-columns h3 {
  margin: 0 0 15px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.sources-columns a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
}

.sources-columns a:hover {
  color: var(--teal);
  text-decoration-color: var(--teal);
}

.sources-slide .fine-print {
  margin: 0;
}

.deck-controls {
  position: fixed;
  z-index: 50;
  inset: auto 0 0;
  height: var(--controls-height);
  display: grid;
  grid-template-columns: 36px minmax(100px, 250px) auto 36px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  border-top: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--paper-bright) 92%, transparent);
  backdrop-filter: blur(18px);
}

.control-button {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.control-button:hover:not(:disabled) {
  border-color: var(--ink);
  background: var(--white);
}

.control-button:disabled {
  opacity: .3;
  cursor: default;
}

.progress-track {
  height: 3px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.progress-track span {
  display: block;
  width: 5%;
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
  transition: width 180ms ease;
}

.slide-count {
  min-width: 44px;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.slide-count b {
  color: var(--ink);
}

.overview-dialog {
  width: min(1000px, calc(100vw - 50px));
  max-height: calc(100svh - 50px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper-bright);
  color: var(--ink);
}

.overview-dialog::backdrop {
  background: rgba(10, 19, 18, .7);
  backdrop-filter: blur(7px);
}

.overview-header {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-bright);
}

.overview-header h2 {
  margin: 5px 0 0;
  font-size: 32px;
}

.close-button {
  display: grid;
  grid-template-columns: none;
  font-size: 23px;
  line-height: 1;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 22px 28px 28px;
}

.overview-card {
  min-height: 105px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.overview-card:hover,
.overview-card.is-current {
  border-color: var(--teal);
}

.overview-card span {
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 800;
}

.overview-card b {
  font-size: 11px;
}

.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-height: 780px) and (min-width: 900px) {
  .slide-inner {
    padding-top: 28px;
    padding-bottom: 24px;
    gap: 17px;
  }

  .section-heading h2 {
    font-size: clamp(34px, 4.1vw, 52px);
  }

  .product-card {
    min-height: 330px;
  }

  .model-ladder article {
    min-height: 150px;
  }

  .capability-grid article {
    min-height: 175px;
  }

  .timeline article {
    min-height: 245px;
  }

  .gate-grid article {
    min-height: 190px;
  }
}

@media (max-width: 980px) {
  :root {
    --rail-width: 0px;
  }

  .rail {
    display: none;
  }

  .slide-inner {
    width: min(100% - 48px, 880px);
  }

  .model-ladder {
    grid-template-columns: repeat(3, 1fr);
  }

  .timeline {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .gate-grid {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
  }

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

  .calculator-summary {
    min-height: 230px;
  }

  .overview-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 720px) {
  :root {
    --topbar-height: 52px;
    --controls-height: 48px;
  }

  html {
    scroll-snap-type: none;
  }

  .topbar {
    grid-template-columns: 1fr auto;
    padding: 0 14px;
  }

  .topbar-meta {
    display: none;
  }

  .slide {
    min-height: auto;
    overflow: visible;
  }

  .slide-inner {
    width: 100%;
    min-height: auto;
    margin: var(--topbar-height) 0 var(--controls-height);
    padding: 54px 22px;
  }

  .slide-footer {
    display: none;
  }

  .hero-content h1 {
    font-size: clamp(55px, 18vw, 86px);
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-stats {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-stats div {
    min-width: 0;
    padding-right: 10px;
  }

  .hero-stats div + div {
    padding-left: 10px;
  }

  .split-cards,
  .calculator-controls,
  .callout-row,
  .benchmark-panel,
  .capability-grid,
  .steering-flow,
  .measurement-grid,
  .milestone-columns,
  .survey-timeline,
  .question-grid,
  .governance-grid,
  .sources-columns {
    grid-template-columns: 1fr;
  }

  .calculator-controls {
    display: block;
  }

  .seat-control + .seat-control {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .shift-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .shift-arrow {
    width: 1px;
    height: 22px;
    margin: 0 auto;
  }

  .shift-arrow::after {
    top: auto;
    right: -4px;
    bottom: 0;
    transform: rotate(135deg);
  }

  .compact-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .model-ladder {
    grid-template-columns: repeat(2, 1fr);
  }

  .comparison-table {
    min-width: 700px;
  }

  .bar-row {
    grid-template-columns: minmax(130px, 1fr) minmax(90px, 2fr) 46px;
  }

  .bar-row em {
    display: none;
  }

  .measurement-grid .measure-wide {
    grid-column: auto;
  }

  .measurement-grid article,
  .measurement-grid .measure-wide {
    grid-template-columns: 38px 1fr;
  }

  .measurement-grid p,
  .formula {
    grid-column: 1 / -1;
  }

  .formula {
    align-items: stretch;
    flex-direction: column;
  }

  .formula > b {
    display: none;
  }

  .formula strong {
    margin: 6px 0 0;
  }

  .target-strip,
  .decision-scale,
  .ask-grid {
    grid-template-columns: 1fr;
  }

  .target-strip span {
    padding: 9px 0;
  }

  .target-strip span + span {
    border-top: 1px solid #41504b;
    border-left: 0;
  }

  .ask-grid div + div {
    padding-left: 0;
    border-top: 1px solid #3b4844;
    border-left: 0;
  }

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

  .deck-controls {
    grid-template-columns: 34px minmax(70px, 180px) auto 34px;
    padding: 0 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root {
    --topbar-height: 0px;
    --controls-height: 0px;
  }

  @page {
    size: 16in 9in;
    margin: 0;
  }

  html,
  body {
    background: var(--white);
  }

  .topbar,
  .rail,
  .deck-controls,
  .slide-footer,
  .primary-button,
  .secondary-button {
    display: none !important;
  }

  .slide {
    width: 16in;
    height: 9in;
    min-height: 9in;
    page-break-after: always;
    break-after: page;
    overflow: hidden;
  }

  .slide-inner {
    width: 100%;
    min-height: 100%;
    margin: 0;
    padding: .6in .75in;
  }
}