:root {
  --color-ink: #151411;
  --color-muted: #41464c;
  --color-soft: #f7f4ef;
  --color-surface: #ffffff;
  --color-line: #e8dfd4;
  --color-accent: #ff6b00;
  --color-accent-deep: #a83f00;
  --color-accent-display: #c15300;
  --color-accent-soft: #fff0e4;
  --color-forest: #1f3a35;
  --color-night: #161b22;
  --shadow-soft: 0 24px 70px rgba(34, 25, 15, 0.1);
  --radius-small: 8px;
  --container: min(1120px, calc(100% - 48px));
  --header-height: 84px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-surface);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 4px;
}

p,
h1,
h2,
h3 {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--color-surface);
  background: var(--color-ink);
  border-radius: var(--radius-small);
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

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

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

.svg-definitions {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.concept-icon {
  display: block;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-surface);
  border-bottom: 1px solid rgba(232, 223, 212, 0.7);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  width: 190px;
  height: 50px;
}

.brand-mark img {
  max-width: none;
  width: 190px;
  height: 50px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding: 10px 12px;
  text-decoration: none;
  border-radius: 999px;
  transition: color 180ms ease, background-color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: var(--color-ink);
  background: var(--color-accent-soft);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-open .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.section {
  padding: 96px 0;
  scroll-margin-top: var(--header-height);
}

main:focus,
section[tabindex]:focus {
  outline: none;
}

.hero {
  min-height: min(640px, calc(100svh - var(--header-height)));
  display: flex;
  align-items: center;
  padding: 64px 0 80px;
  background:
    linear-gradient(90deg, rgba(255, 107, 0, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 107, 0, 0.06) 1px, transparent 1px),
    #fffdf9;
  background-size: 56px 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.7fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--color-accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  margin-top: 14px;
  font-size: 8rem;
  color: var(--color-accent-display);
}

h2 {
  margin-top: 12px;
  font-size: 2.5rem;
  line-height: 1.2;
}

h3 {
  font-size: 1.25rem;
}

.hero-lede {
  max-width: 720px;
  margin-top: 18px;
  color: var(--color-ink);
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 2.25rem;
  line-height: 1.25;
}

.hero-copy h1 {
  margin-top: 0;
}

.hero-copy h1 sup {
  display: inline-block;
  position: relative;
  top: 0.45em;
  margin-left: -0.1em;
  color: var(--color-accent-deep);
  font-size: 0.24em;
  line-height: 1;
  vertical-align: top;
}

.hero-text {
  color: var(--color-muted);
  font-size: 1.08rem;
  max-width: 620px;
  margin-top: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--color-ink);
  background: var(--color-accent);
  box-shadow: 0 14px 28px rgba(255, 107, 0, 0.22);
}

.button-primary:hover,
.button-primary:focus-visible {
  color: var(--color-surface);
  background: var(--color-accent-deep);
}

.button-secondary {
  color: var(--color-ink);
  background: var(--color-surface);
  border-color: var(--color-line);
}

.hero-system {
  position: relative;
  width: min(100%, 440px);
  aspect-ratio: 1 / 1.08;
  justify-self: center;
  isolation: isolate;
}

.system-experience {
  position: absolute;
  top: 9%;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.system-experience strong {
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
}

.system-experience span {
  color: var(--color-muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.system-feed {
  position: absolute;
  top: calc(9% + 2.352rem + 8px);
  left: 50%;
  z-index: 1;
  width: 1px;
  height: calc(21% - 2.352rem - 8px);
  background: rgba(255, 107, 0, 0.45);
}

.system-feed::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  transform: translateX(-50%);
}

.system-layers {
  position: absolute;
  inset: 0;
}

.system-layer {
  position: absolute;
  left: 7%;
  width: 86%;
  height: 42%;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.system-layer::before {
  content: "";
  position: absolute;
  inset: 1px;
  clip-path: inherit;
}

.system-layer-base {
  top: 40%;
  background: #cbd1cc;
}

.system-layer-base::before {
  inset: 1.5px;
  background: #fffdf9;
}

.system-layer-middle {
  top: 35%;
  background: #f0bc93;
}

.system-layer-middle::before {
  inset: 1.5px;
  background: #fffaf5;
}

.system-layer-top {
  top: 30%;
  background: #ff8933;
}

.system-layer-top::before {
  background: #fff5ec;
}

.system-connections {
  position: absolute;
  top: 82%;
  left: calc((100% - 16px) / 6);
  right: calc((100% - 16px) / 6);
  z-index: 1;
  height: 3%;
  border-bottom: 1px solid rgba(201, 76, 0, 0.32);
}

.system-connections::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(255, 107, 0, 0.55);
}

.system-connections::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  transform: translateX(-50%);
}

.system-core {
  position: absolute;
  top: calc(51% - 3px);
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
  transform: translateY(-50%);
}

.system-core span {
  display: block;
  position: relative;
  color: var(--color-accent-deep);
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
}

.system-core sup {
  position: absolute;
  top: 0.2em;
  left: calc(100% + 2px);
  font-size: 0.28em;
  line-height: 1;
}

.system-core strong {
  display: block;
  margin-top: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.25;
}

.system-outcomes {
  position: absolute;
  top: 85%;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  list-style: none;
}

.system-outcomes li {
  position: relative;
  min-width: 0;
  padding-top: 16px;
  color: var(--color-muted);
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
}

.system-outcomes li::before {
  content: "";
  position: absolute;
  top: -2px;
  left: calc(50% - 2px);
  width: 4px;
  height: 4px;
  background: var(--color-accent);
}

.section-heading {
  align-self: start;
}

.section-heading > p:not(.eyebrow) {
  max-width: 720px;
  margin-top: 22px;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.section-heading-wide {
  max-width: 1040px;
}

.story-layout,
.evolution-layout,
.closing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.story-copy {
  padding-left: 28px;
  border-left: 2px solid var(--color-accent);
  color: var(--color-muted);
  font-size: 1.08rem;
}

.experience-progression {
  position: relative;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid #c5d0c9;
  list-style: none;
}

.experience-progression li {
  position: relative;
  min-width: 0;
}

.experience-progression li::before {
  content: "";
  position: absolute;
  top: -27px;
  left: 8px;
  width: 6px;
  height: 6px;
  background: var(--color-accent-deep);
}

.experience-progression .concept-icon {
  margin-bottom: 16px;
  color: var(--color-forest);
}

.experience-progression p {
  font-weight: 600;
  line-height: 1.45;
}

.experience-progression span {
  display: block;
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

.foundation-section {
  background: #f5f7f7;
}

.foundation-diagram {
  position: relative;
  margin: 56px 0 40px;
}

.foundation-identity {
  position: relative;
  width: fit-content;
  margin: 0 auto;
  text-align: center;
}

.foundation-wordmark {
  color: var(--color-accent-deep);
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.1;
}

.foundation-wordmark sup {
  font-size: 0.28em;
  vertical-align: super;
}

.foundation-identity > p:last-child {
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.foundation-identity::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  width: 1px;
  height: 32px;
  background: #e4b592;
}

.foundation-modules {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin-top: 64px;
  list-style: none;
}

.foundation-modules::before {
  content: "";
  position: absolute;
  top: -32px;
  left: calc((100% - 64px) / 10);
  right: calc((100% - 64px) / 10);
  height: 1px;
  background: #e4b592;
}

.foundation-modules li {
  position: relative;
  min-width: 0;
  padding: 12px 0;
  text-align: center;
}

.foundation-modules li::before {
  content: "";
  position: absolute;
  top: -32px;
  left: 50%;
  width: 1px;
  height: 32px;
  background: #e4b592;
}

.foundation-modules li::after {
  content: "";
  position: absolute;
  top: -3px;
  left: calc(50% - 3px);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-deep);
}

.foundation-modules h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
}

.foundation-platform {
  position: relative;
  height: 48px;
  margin-top: 8px;
}

.foundation-platform span {
  position: absolute;
  inset: 0 0 12px;
  background: #f0b183;
  clip-path: polygon(3% 0, 97% 0, 100% 70%, 50% 100%, 0 70%);
}

.foundation-platform span:first-child {
  top: 12px;
  bottom: 0;
  background: #c4d1cb;
}

.foundation-platform span:last-child::after {
  content: "";
  position: absolute;
  inset: 1px 1px 2px;
  background: #fff7f0;
  clip-path: inherit;
}

.runtime-architecture {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid #dce3e1;
}

.runtime-architecture h3 {
  color: var(--color-muted);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.runtime-pair {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 1.125rem;
  font-weight: 600;
}

.runtime-pair > span:not(.runtime-plus) {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 2px solid var(--color-accent-deep);
}

.runtime-plus {
  color: var(--color-muted);
  font-size: 1.5rem;
  font-weight: 400;
}

.core-technologies {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: center;
  gap: 48px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid #dce3e1;
}

.core-technology-copy {
  min-width: 0;
}

.core-technology-copy h3 {
  font-size: 1.375rem;
  line-height: 1.35;
}

.core-technology-copy p {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 1rem;
}

.core-technology-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 24px;
  list-style: none;
}

.core-technology-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 16px 0;
  border-bottom: 1px solid #dce3e1;
  font-weight: 600;
  line-height: 1.45;
}

.core-technology-list .concept-icon {
  color: var(--color-forest);
}

.core-technology-list li:first-child .concept-icon {
  color: var(--color-accent-deep);
}

.core-technology-list span {
  min-width: 0;
}

.supporting-ui-technology {
  margin-top: 24px;
  padding-left: 18px;
  border-left: 2px solid #c5d0c9;
}

.supporting-ui-technology h3 {
  font-size: 1rem;
  line-height: 1.4;
}

.supporting-ui-technology p {
  max-width: 900px;
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 1rem;
}

.framework-roles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 48px;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  list-style: none;
}

.framework-roles li {
  min-width: 0;
  padding: 32px;
  border-left: 1px solid var(--color-line);
}

.framework-roles li:first-child {
  padding-left: 0;
  border-left: 0;
}

.framework-role {
  color: var(--color-accent-deep);
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.2;
}

.framework-roles li:nth-child(2) .framework-role {
  color: var(--color-forest);
}

.framework-roles li:nth-child(3) .framework-role {
  color: var(--color-ink);
}

.framework-roles h3 {
  margin-top: 12px;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
}

.role-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 22px;
  color: var(--color-accent-deep);
}

.framework-roles li:nth-child(2) .role-icon {
  color: var(--color-forest);
}

.framework-roles li:nth-child(3) .role-icon {
  color: var(--color-ink);
}

.role-description {
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.solutions-section {
  padding-top: 0;
}

.solution-heading > p.solution-lede {
  max-width: none;
  margin-top: 18px;
  color: var(--color-ink);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.45;
}

.solution-heading > p:last-child {
  max-width: 900px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.solution-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid #d6dedb;
  border-radius: var(--radius-small);
}

.solution-intro {
  min-height: 322px;
}

.solution-visual {
  display: block;
  width: 100%;
  height: 104px;
  margin-bottom: 18px;
  color: var(--color-forest);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.visual-accent {
  stroke: var(--color-accent-deep);
}

.visual-ground {
  stroke: #c5d0c9;
}

.solution-card h3 {
  font-size: 1.375rem;
  line-height: 1.25;
}

.solution-subtitle {
  margin-top: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.5;
}

.solution-description {
  margin-top: 14px;
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.solution-scope {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid #d6dedb;
}

.solution-scope h4 {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.4;
}

.solution-capabilities {
  display: grid;
  gap: 16px;
  list-style: none;
}

.solution-capabilities li {
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.solution-capabilities strong {
  color: var(--color-ink);
  font-weight: 600;
}

.solution-closing {
  max-width: 900px;
  margin: 40px auto 0;
  text-align: center;
}

.solution-closing h3 {
  font-size: 1.25rem;
  line-height: 1.4;
}

.solution-closing p {
  margin-top: 12px;
  color: var(--color-muted);
}

.evolution-section {
  background: #f5f8f7;
}

.evolution-directions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 32px;
  margin-top: 24px;
  border-top: 1px solid #c5d0c9;
  list-style: none;
}

.evolution-directions li {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
  padding: 22px 0;
  border-bottom: 1px solid #dce3e1;
  font-size: 1.125rem;
  font-weight: 600;
}

.evolution-directions li > div {
  min-width: 0;
}

.evolution-directions .concept-icon {
  color: var(--color-forest);
}

.evolution-directions span {
  display: block;
  line-height: 1.35;
}

.evolution-directions small {
  display: block;
  margin-top: 7px;
  color: var(--color-muted);
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.55;
}

.evolution-source {
  position: relative;
  color: var(--color-accent-deep);
  font-weight: 600;
  text-align: center;
}

.evolution-source::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  height: 24px;
  width: 1px;
  background: #c5d0c9;
}

.closing-section {
  border-top: 1px solid var(--color-line);
}

.closing-philosophy {
  color: var(--color-accent-deep);
  font-family: "Segoe UI Semibold", "Segoe UI", Arial, sans-serif;
  font-size: 3.5rem;
  font-weight: 600;
  line-height: 1.1;
}

.closing-heading h2 {
  max-width: 480px;
  margin-top: 20px;
  font-size: 1.75rem;
  line-height: 1.25;
}

.closing-copy p {
  max-width: 440px;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.closing-copy .button {
  margin-top: 28px;
}

.site-footer {
  padding: 36px 0;
  color: var(--color-muted);
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-company {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.footer-company-logo-link {
  flex: 0 0 auto;
}

.footer-company-logo {
  width: 80px;
  height: auto;
}

.footer-company-copy {
  min-width: 0;
}

.footer-company-name {
  color: var(--color-ink);
  font-weight: 600;
}

.footer-company-tagline {
  margin-top: 4px;
  font-size: 0.85rem;
}

.reveal-enabled .reveal {
  opacity: 1;
  transform: none;
}

.reveal-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 1101px) {
  .story-copy p,
  .solution-heading > p:last-child {
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
  }
}

@media (max-width: 1100px) {
  .solution-grid {
    grid-template-columns: 1fr;
  }

  .solution-card {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 32px;
  }

  .solution-intro {
    min-height: 0;
  }

  .solution-scope {
    margin-top: 0;
    padding: 0 0 0 24px;
    border-top: 0;
    border-left: 1px solid #d6dedb;
  }
}

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

  .reveal-enabled .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  :root {
    --container: min(100% - 36px, 760px);
    --header-height: 76px;
  }

  .js-enabled .nav-toggle {
    display: block;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 12px 32px;
  }

  .site-nav {
    flex-wrap: wrap;
    width: 100%;
    padding-bottom: 12px;
  }

  .js-enabled .header-inner {
    flex-wrap: nowrap;
  }

  .js-enabled .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 18px;
    left: 18px;
    display: grid;
    width: auto;
    max-height: calc(100svh - var(--header-height) - 18px);
    overflow-y: auto;
    gap: 4px;
    padding: 14px;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-small);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  }

  .js-enabled.nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero {
    min-height: auto;
    padding: 72px 0 88px;
  }

  .section {
    padding: 84px 0;
  }

  h2 {
    font-size: 2.25rem;
  }

  h1 {
    font-size: 7rem;
  }

  .hero-lede {
    font-size: 2.125rem;
  }

  .experience-progression {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 32px;
  }

  .story-layout,
  .evolution-layout,
  .closing-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .foundation-diagram {
    padding: 0 24px;
    margin-top: 40px;
  }

  .foundation-identity {
    margin: 0;
    padding-left: 28px;
    text-align: left;
  }

  .foundation-identity::after {
    left: 0;
    height: 28px;
  }

  .foundation-modules {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 28px;
    padding-left: 28px;
    border-left: 1px solid #e4b592;
  }

  .foundation-modules::before {
    display: none;
  }

  .foundation-modules li {
    padding: 16px 0;
    text-align: left;
  }

  .foundation-modules li::before {
    top: 50%;
    left: -28px;
    width: 18px;
    height: 1px;
  }

  .foundation-modules li::after {
    top: calc(50% - 3px);
    left: -31px;
  }

  .core-technologies {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .framework-roles li {
    padding: 28px 20px;
  }

  .solutions-section {
    padding-top: 0;
  }

}

@media (max-width: 640px) {
  :root {
    --container: calc(100% - 28px);
  }

  h1 {
    font-size: 5.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-lede {
    font-size: 1.875rem;
  }

  .experience-progression {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 0 0 24px;
    border-top: 0;
    border-left: 1px solid #c5d0c9;
  }

  .experience-progression li {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    column-gap: 16px;
  }

  .experience-progression li::before {
    top: 10px;
    left: -28px;
  }

  .experience-progression .concept-icon {
    grid-column: 1;
    grid-row: 1 / span 2;
    margin-bottom: 0;
  }

  .experience-progression span {
    grid-column: 2;
  }

  .hero-actions,
  .footer-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .footer-inner {
    align-items: center;
    gap: 8px;
    text-align: center;
  }

  .footer-company {
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .footer-inner > p {
    width: 100%;
    text-align: center;
  }

  .button {
    width: 100%;
  }

  .hero-system {
    width: min(100%, 360px);
  }

  .system-core span {
    font-size: 2.125rem;
  }

  .system-core strong {
    font-size: 0.75rem;
  }

  .system-outcomes li {
    padding-top: 8px;
    font-size: 0.78rem;
  }

  .story-copy {
    padding-left: 20px;
  }

  .foundation-diagram {
    padding: 0 16px;
  }

  .foundation-wordmark {
    font-size: 2.25rem;
  }

  .runtime-architecture {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .runtime-pair {
    gap: 20px;
  }

  .framework-roles {
    grid-template-columns: 1fr;
  }

  .framework-roles li,
  .framework-roles li:first-child {
    padding: 24px 0;
    border-left: 0;
  }

  .framework-roles li + li {
    border-top: 1px solid var(--color-line);
  }

  .solution-card {
    display: block;
    padding: 22px;
  }

  .solution-scope {
    margin-top: 24px;
    padding: 22px 0 0;
    border-left: 0;
    border-top: 1px solid #d6dedb;
  }

  .solution-closing {
    text-align: left;
  }

  .evolution-directions {
    column-gap: 18px;
  }

  .evolution-directions li {
    font-size: 1rem;
  }

  .closing-philosophy {
    font-size: 2.75rem;
  }

  .closing-heading h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 380px) {
  h1 {
    font-size: 4.5rem;
  }

  .evolution-directions {
    grid-template-columns: 1fr;
  }

  .closing-philosophy {
    font-size: 2.375rem;
  }
}