@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("../fonts/manrope-cyrillic-400-800.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("../fonts/manrope-latin-400-800.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Roboto Condensed";
  font-style: normal;
  font-weight: 600 900;
  font-display: swap;
  src: url("../fonts/roboto-condensed-cyrillic-600-900.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

@font-face {
  font-family: "Roboto Condensed";
  font-style: normal;
  font-weight: 600 900;
  font-display: swap;
  src: url("../fonts/roboto-condensed-latin-600-900.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;
  --paper: #ffffff;
  --soft: #f3f4f7;
  --soft-2: #e8eaf0;
  --ink: #23252b;
  --muted: #555d6c;
  --deep: #11131a;
  --deep-2: #181b25;
  --line: #d6d9e1;
  --accent: #4a3ca6;
  --accent-dark: #302675;
  --accent-light: #a89cff;
  --mint: #82e6c0;
  --danger: #b84a5a;
  --content: 77.5rem;
  --gutter: clamp(1rem, 4vw, 3rem);
  --section-gap: clamp(4rem, 8vw, 7.5rem);
  --font-body: "Manrope", "Segoe UI", Arial, sans-serif;
  --font-display: "Roboto Condensed", "Arial Narrow", "Segoe UI", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
}

body.arecont-city-platform-page {
  margin: 0;
  min-width: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.62;
  overflow-wrap: break-word;
}

.arecont-city-platform-page img {
  display: block;
  max-width: 100%;
}

.arecont-city-platform-page a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

.arecont-city-platform-page a,
.arecont-city-platform-page summary {
  -webkit-tap-highlight-color: transparent;
}

.arecont-city-platform-page :focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.arecont-city-platform-page .hero :focus-visible,
.arecont-city-platform-page .human-section :focus-visible,
.arecont-city-platform-page .pilot-section :focus-visible,
.arecont-city-platform-page .security-section :focus-visible,
.arecont-city-platform-page .contact-section :focus-visible,
.arecont-city-platform-page .site-footer :focus-visible,
.arecont-city-platform-page .mobile-menu nav :focus-visible {
  outline-color: #ffffff;
}

.arecont-city-platform-page .contact-card :focus-visible {
  outline-color: var(--accent-dark);
}

.arecont-city-platform-page .container {
  width: min(calc(100% - (2 * var(--gutter))), var(--content));
  min-width: 0;
  margin-inline: auto;
}

.arecont-city-platform-page .skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.7rem 1rem;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-180%);
}

.arecont-city-platform-page .skip-link:focus {
  transform: translateY(0);
}

.arecont-city-platform-page h1,
.arecont-city-platform-page h2,
.arecont-city-platform-page h3,
.arecont-city-platform-page p,
.arecont-city-platform-page li,
.arecont-city-platform-page summary,
.arecont-city-platform-page small,
.arecont-city-platform-page figcaption {
  overflow-wrap: break-word;
}

.arecont-city-platform-page h1,
.arecont-city-platform-page h2,
.arecont-city-platform-page h3 {
  margin-top: 0;
  font-family: var(--font-display);
  font-weight: 850;
  line-height: 1;
  word-break: normal;
}

.arecont-city-platform-page h1 {
  max-width: 14ch;
  margin-bottom: 1.45rem;
  font-size: clamp(2.35rem, 6vw, 5.5rem);
  letter-spacing: -0.035em;
}

.arecont-city-platform-page h2 {
  margin-bottom: 1.3rem;
  font-size: clamp(2rem, 4vw, 4rem);
  letter-spacing: -0.025em;
}

.arecont-city-platform-page h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
}

.arecont-city-platform-page p {
  margin-top: 0;
}

.arecont-city-platform-page .eyebrow {
  margin-bottom: 1rem;
  color: var(--accent-light);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.35;
  text-transform: uppercase;
}

.arecont-city-platform-page .eyebrow--dark {
  color: var(--accent);
}

.arecont-city-platform-page .button {
  display: inline-flex;
  min-height: 2.75rem;
  min-width: 0;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 0.25rem;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.arecont-city-platform-page .button--primary {
  background: var(--mint);
  color: #11251e;
}

.arecont-city-platform-page .button--primary:hover {
  background: #a2f0d3;
}

.arecont-city-platform-page .button--light {
  border-color: rgba(255, 255, 255, 0.52);
  color: #ffffff;
}

.arecont-city-platform-page .button--light:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.arecont-city-platform-page .button--outline {
  border-color: var(--accent-dark);
  color: var(--accent-dark);
}

.arecont-city-platform-page .button--outline:hover {
  background: var(--soft-2);
}

.arecont-city-platform-page .button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.arecont-city-platform-page .site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid #dfe1e7;
  background: rgba(255, 255, 255, 0.98);
}

.arecont-city-platform-page .site-header__inner {
  display: flex;
  min-height: 5.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.arecont-city-platform-page .brand {
  display: inline-flex;
  min-height: 2.75rem;
  min-width: 0;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.arecont-city-platform-page .brand__mark {
  width: 2.55rem;
  height: auto;
  flex: 0 0 auto;
}

.arecont-city-platform-page .brand--footer {
  justify-self: start;
}

.arecont-city-platform-page .brand__text {
  display: grid;
  min-width: 0;
  gap: 0.05rem;
  line-height: 1.15;
}

.arecont-city-platform-page .brand__text strong {
  min-width: 0;
  max-width: 100%;
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  overflow-wrap: anywhere;
}

.arecont-city-platform-page .brand__text small {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
}

.arecont-city-platform-page .primary-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.arecont-city-platform-page .primary-nav > a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 750;
  text-decoration: none;
}

.arecont-city-platform-page .primary-nav > a:hover,
.arecont-city-platform-page .primary-nav > a[aria-current="page"] {
  color: var(--accent);
}

.arecont-city-platform-page .primary-nav .primary-nav__cta {
  margin-left: 0.45rem;
  padding-inline: 1rem;
  background: var(--accent);
  color: #ffffff;
}

.arecont-city-platform-page .primary-nav .primary-nav__cta:hover {
  background: var(--accent-dark);
  color: #ffffff;
}

.arecont-city-platform-page .mobile-menu {
  display: none;
  position: relative;
}

.arecont-city-platform-page .mobile-menu summary {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line);
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.arecont-city-platform-page .mobile-menu summary::-webkit-details-marker {
  display: none;
}

.arecont-city-platform-page .mobile-menu nav {
  position: absolute;
  top: calc(100% + 0.65rem);
  right: 0;
  display: grid;
  width: min(19rem, calc(100vw - 2rem));
  padding: 0.75rem;
  background: var(--deep);
  box-shadow: 0 1rem 3rem rgba(17, 19, 26, 0.3);
  color: #ffffff;
}

.arecont-city-platform-page .mobile-menu nav a {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  text-decoration: none;
}

.arecont-city-platform-page .hero {
  padding: clamp(2.25rem, 5vw, 4.5rem) 0 var(--section-gap);
  background:
    linear-gradient(135deg, rgba(74, 60, 166, 0.3), transparent 45%),
    var(--deep);
  color: #ffffff;
}

.arecont-city-platform-page .breadcrumbs {
  margin-bottom: clamp(2.25rem, 5vw, 4.5rem);
}

.arecont-city-platform-page .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  color: #c5c9d4;
  font-size: 0.78rem;
  list-style: none;
}

.arecont-city-platform-page .breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: #7b8191;
}

.arecont-city-platform-page .breadcrumbs a {
  display: inline-flex;
  min-width: 2.75rem;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
}

.arecont-city-platform-page .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(24rem, 0.95fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6.5rem);
}

.arecont-city-platform-page .hero__copy,
.arecont-city-platform-page .system-map {
  min-width: 0;
}

.arecont-city-platform-page .hero__lead {
  max-width: 43rem;
  margin-bottom: 1.8rem;
  color: #d9dce5;
  font-size: clamp(1.1rem, 2vw, 1.32rem);
  line-height: 1.58;
}

.arecont-city-platform-page .concept-notice {
  max-width: 42rem;
  margin-top: 2rem;
  padding: 1.05rem 1.2rem;
  border-left: 3px solid var(--mint);
  background: rgba(255, 255, 255, 0.07);
}

.arecont-city-platform-page .concept-notice strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--mint);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arecont-city-platform-page .concept-notice p {
  margin-bottom: 0;
  color: #d9dce5;
  font-size: 0.9rem;
}

.arecont-city-platform-page .system-map {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: var(--deep-2);
  box-shadow: 0 2.5rem 5rem rgba(0, 0, 0, 0.25);
}

.arecont-city-platform-page .system-map__head {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: #b7bcc9;
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arecont-city-platform-page .system-map__canvas {
  position: relative;
  display: grid;
  grid-template-columns: minmax(5.5rem, 0.65fr) minmax(7rem, 0.9fr) minmax(11rem, 1.25fr);
  align-items: center;
  gap: 1rem;
  min-height: 22rem;
  padding: clamp(1rem, 3vw, 1.7rem);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 2rem 2rem;
}

.arecont-city-platform-page .system-map__canvas::before,
.arecont-city-platform-page .system-map__canvas::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 50%;
  height: 1px;
  background: var(--accent-light);
  opacity: 0.6;
}

.arecont-city-platform-page .system-map__canvas::before {
  left: 24%;
  width: 12%;
}

.arecont-city-platform-page .system-map__canvas::after {
  left: 56%;
  width: 10%;
}

.arecont-city-platform-page .source-stack,
.arecont-city-platform-page .context-node,
.arecont-city-platform-page .operator-panel {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.arecont-city-platform-page .source-stack {
  display: grid;
  gap: 0.55rem;
}

.arecont-city-platform-page .source-stack span {
  display: flex;
  min-width: 0;
  min-height: 2.65rem;
  align-items: center;
  padding: 0.55rem 0.7rem;
  border: 1px solid rgba(168, 156, 255, 0.45);
  background: rgba(74, 60, 166, 0.22);
  color: #e6e3ff;
  font-size: 0.72rem;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.arecont-city-platform-page .context-node {
  display: grid;
  gap: 0.45rem;
  padding: 1rem;
  border: 1px solid var(--mint);
  background: #172a26;
}

.arecont-city-platform-page .context-node small,
.arecont-city-platform-page .context-node span {
  color: #b6d8cb;
  font-size: 0.65rem;
}

.arecont-city-platform-page .context-node strong {
  font-size: 0.8rem;
  line-height: 1.35;
}

.arecont-city-platform-page .operator-panel {
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: #f7f8fa;
  color: var(--ink);
}

.arecont-city-platform-page .operator-panel__top {
  display: flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.63rem;
  font-weight: 800;
}

.arecont-city-platform-page .operator-panel__top i {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--mint);
}

.arecont-city-platform-page .operator-panel__event {
  padding: 1rem 0.8rem;
}

.arecont-city-platform-page .operator-panel__event small {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--accent);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.arecont-city-platform-page .operator-panel__event strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.arecont-city-platform-page .operator-panel__event p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.45;
}

.arecont-city-platform-page .operator-panel__decision {
  display: grid;
  grid-template-columns: 1fr 1.45fr;
  gap: 0.45rem;
  padding: 0.65rem;
  border-top: 1px solid var(--line);
}

.arecont-city-platform-page .operator-panel__decision span,
.arecont-city-platform-page .operator-panel__decision strong {
  display: flex;
  min-width: 0;
  min-height: 2.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  text-align: center;
  font-size: 0.6rem;
  overflow-wrap: anywhere;
}

.arecont-city-platform-page .operator-panel__decision span {
  border: 1px solid var(--line);
}

.arecont-city-platform-page .operator-panel__decision strong {
  background: var(--accent);
  color: #ffffff;
}

.arecont-city-platform-page .system-map figcaption {
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: #aeb4c1;
  font-size: 0.7rem;
  line-height: 1.5;
}

.arecont-city-platform-page .principle-strip {
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.arecont-city-platform-page .principle-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.arecont-city-platform-page .principle-strip__grid > div {
  display: grid;
  min-width: 0;
  padding: 1.35rem clamp(0.75rem, 2vw, 1.5rem);
  border-right: 1px solid var(--line);
}

.arecont-city-platform-page .principle-strip__grid > div:last-child {
  border-right: 0;
}

.arecont-city-platform-page .principle-strip span,
.arecont-city-platform-page .scenario-grid > article > span,
.arecont-city-platform-page .commercial-layer > div > span,
.arecont-city-platform-page .maturity-grid > li > span {
  margin-bottom: 0.4rem;
  color: var(--accent);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arecont-city-platform-page .principle-strip strong,
.arecont-city-platform-page .principle-strip small {
  display: block;
}

.arecont-city-platform-page .principle-strip strong {
  margin-bottom: 0.15rem;
  font-size: 0.88rem;
}

.arecont-city-platform-page .principle-strip small {
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.4;
}

.arecont-city-platform-page .section {
  padding: var(--section-gap) 0;
}

.arecont-city-platform-page .section--light {
  background: var(--soft);
}

.arecont-city-platform-page .section-heading,
.arecont-city-platform-page .problem-grid,
.arecont-city-platform-page .human-section__grid,
.arecont-city-platform-page .pilot-section__heading,
.arecont-city-platform-page .metrics-grid,
.arecont-city-platform-page .security-section__grid,
.arecont-city-platform-page .faq-grid,
.arecont-city-platform-page .contact-section__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 6rem);
}

.arecont-city-platform-page .section-heading {
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.arecont-city-platform-page .section-heading > p,
.arecont-city-platform-page .section-intro > p,
.arecont-city-platform-page .pilot-section__heading > p,
.arecont-city-platform-page .faq-grid__heading > p {
  color: var(--muted);
  font-size: 1rem;
}

.arecont-city-platform-page .section-heading h2,
.arecont-city-platform-page .section-intro h2,
.arecont-city-platform-page .pilot-section__heading h2,
.arecont-city-platform-page .security-section h2,
.arecont-city-platform-page .contact-section h2 {
  max-width: 15ch;
}

.arecont-city-platform-page .section-lead {
  font-size: 1.08rem;
  font-weight: 650;
}

.arecont-city-platform-page .signal-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.arecont-city-platform-page .signal-board article {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.arecont-city-platform-page .signal-board span {
  display: block;
  margin-bottom: 1.3rem;
  color: var(--accent);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arecont-city-platform-page .signal-board p,
.arecont-city-platform-page .scenario-grid p,
.arecont-city-platform-page .maturity-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.arecont-city-platform-page .boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.arecont-city-platform-page .boundary-card {
  min-width: 0;
  padding: clamp(1.4rem, 4vw, 2.7rem);
  border: 1px solid var(--line);
}

.arecont-city-platform-page .boundary-card--research {
  border-top: 4px solid var(--accent);
  background: #f6f4ff;
}

.arecont-city-platform-page .boundary-card--limits {
  border-top: 4px solid var(--danger);
  background: #fff6f7;
}

.arecont-city-platform-page .boundary-card__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.35rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.arecont-city-platform-page .boundary-card__head span {
  display: inline-flex;
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--paper);
}

.arecont-city-platform-page .boundary-card ul,
.arecont-city-platform-page .pilot-output ul {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding-left: 1.15rem;
}

.arecont-city-platform-page .boundary-card li,
.arecont-city-platform-page .pilot-output li {
  padding-left: 0.25rem;
}

.arecont-city-platform-page .human-section,
.arecont-city-platform-page .pilot-section,
.arecont-city-platform-page .security-section,
.arecont-city-platform-page .contact-section {
  padding: var(--section-gap) 0;
  background: var(--deep);
  color: #ffffff;
}

.arecont-city-platform-page .human-section__grid,
.arecont-city-platform-page .security-section__grid,
.arecont-city-platform-page .contact-section__grid {
  align-items: center;
}

.arecont-city-platform-page .human-section p,
.arecont-city-platform-page .security-section p,
.arecont-city-platform-page .contact-section p {
  color: #cdd1db;
}

.arecont-city-platform-page .human-note,
.arecont-city-platform-page .security-section__copy aside {
  margin-top: 1.8rem;
  padding: 1rem 1.1rem;
  border-left: 3px solid var(--mint);
  background: rgba(255, 255, 255, 0.07);
}

.arecont-city-platform-page .human-note strong,
.arecont-city-platform-page .security-section__copy aside strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--mint);
}

.arecont-city-platform-page .human-note p,
.arecont-city-platform-page .security-section__copy aside p {
  margin-bottom: 0;
  font-size: 0.85rem;
}

.arecont-city-platform-page .decision-flow,
.arecont-city-platform-page .pilot-steps,
.arecont-city-platform-page .security-checklist,
.arecont-city-platform-page .contact-card ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.arecont-city-platform-page .decision-flow li,
.arecont-city-platform-page .security-checklist li {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  min-width: 0;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.arecont-city-platform-page .decision-flow li > span,
.arecont-city-platform-page .security-checklist li > span {
  color: var(--accent-light);
  font-size: 0.7rem;
  font-weight: 800;
}

.arecont-city-platform-page .decision-flow strong,
.arecont-city-platform-page .decision-flow small,
.arecont-city-platform-page .security-checklist strong,
.arecont-city-platform-page .security-checklist small {
  display: block;
}

.arecont-city-platform-page .decision-flow small,
.arecont-city-platform-page .security-checklist small {
  margin-top: 0.15rem;
  color: #aeb4c2;
}

.arecont-city-platform-page .decision-flow__human {
  border-left: 3px solid var(--mint);
  background: rgba(130, 230, 192, 0.08);
}

.arecont-city-platform-page .scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.arecont-city-platform-page .scenario-grid article {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: #ffffff;
}

.arecont-city-platform-page .scenario-grid h3 {
  margin-top: 1.2rem;
}

.arecont-city-platform-page .commercial-layer {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  margin-top: 1.5rem;
  padding: clamp(1.3rem, 4vw, 2.5rem);
  border-left: 4px solid var(--accent);
  background: #ffffff;
}

.arecont-city-platform-page .commercial-layer p {
  color: var(--muted);
}

.arecont-city-platform-page .text-link {
  display: inline-flex;
  max-width: 100%;
  min-height: 2.75rem;
  min-width: 0;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--accent-dark);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.arecont-city-platform-page .pilot-section {
  background:
    linear-gradient(135deg, rgba(74, 60, 166, 0.24), transparent 50%),
    var(--deep);
}

.arecont-city-platform-page .pilot-section__heading {
  align-items: end;
  margin-bottom: 2.25rem;
}

.arecont-city-platform-page .pilot-section__heading > p {
  color: #cdd1db;
}

.arecont-city-platform-page .pilot-section blockquote {
  margin: 0 0 2.25rem;
  padding: 1.25rem clamp(1rem, 4vw, 2rem);
  border-left: 4px solid var(--mint);
  background: rgba(255, 255, 255, 0.07);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
}

.arecont-city-platform-page .pilot-steps {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.arecont-city-platform-page .pilot-steps li {
  min-width: 0;
  padding: 1.35rem;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.arecont-city-platform-page .pilot-steps li > span {
  display: block;
  margin-bottom: 1rem;
  color: var(--mint);
  font-size: 0.72rem;
  font-weight: 800;
}

.arecont-city-platform-page .pilot-steps h3 {
  font-size: 1.25rem;
}

.arecont-city-platform-page .pilot-steps p {
  margin-bottom: 0;
  color: #bfc4d0;
  font-size: 0.83rem;
}

.arecont-city-platform-page .pilot-output {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 2rem;
  margin-top: 2rem;
  padding: clamp(1.4rem, 4vw, 2.5rem);
  background: #ffffff;
  color: var(--ink);
}

.arecont-city-platform-page .pilot-output h3 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.arecont-city-platform-page .metrics-grid {
  align-items: start;
}

.arecont-city-platform-page .metric-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.arecont-city-platform-page .metric-list article {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}

.arecont-city-platform-page .metric-list article > span {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
}

.arecont-city-platform-page .metric-list h3 {
  margin-bottom: 0.2rem;
}

.arecont-city-platform-page .metric-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.arecont-city-platform-page .security-checklist {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.arecont-city-platform-page .maturity-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--line);
  list-style: none;
}

.arecont-city-platform-page .maturity-grid li {
  position: relative;
  min-width: 0;
  padding: clamp(1.3rem, 3vw, 2rem);
  background: #ffffff;
}

.arecont-city-platform-page .maturity-grid__active {
  box-shadow: inset 0 4px 0 var(--accent);
}

.arecont-city-platform-page .maturity-grid__active::after {
  content: "";
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--mint);
}

.arecont-city-platform-page .maturity-grid h3 {
  margin-top: 1.2rem;
}

.arecont-city-platform-page .faq-grid {
  align-items: start;
}

.arecont-city-platform-page .faq-grid__heading {
  position: sticky;
  top: 1rem;
}

.arecont-city-platform-page .faq-list {
  border-top: 1px solid var(--line);
}

.arecont-city-platform-page .faq-list details {
  border-bottom: 1px solid var(--line);
}

.arecont-city-platform-page .faq-list summary {
  position: relative;
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  padding: 1rem 3rem 1rem 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 800;
  line-height: 1.2;
  list-style: none;
}

.arecont-city-platform-page .faq-list summary::-webkit-details-marker {
  display: none;
}

.arecont-city-platform-page .faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0.25rem;
  display: inline-flex;
  width: 2.25rem;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--accent);
}

.arecont-city-platform-page .faq-list details[open] summary::after {
  content: "−";
}

.arecont-city-platform-page .faq-list details p {
  max-width: 47rem;
  padding: 0 2rem 1.25rem 0;
  color: var(--muted);
}

.arecont-city-platform-page .contact-links {
  display: grid;
  justify-items: start;
  gap: 0.25rem;
  margin-top: 1.5rem;
}

.arecont-city-platform-page .contact-copy {
  min-width: 0;
}

.arecont-city-platform-page .contact-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: #ffffff;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 800;
}

.arecont-city-platform-page .contact-card {
  min-width: 0;
  padding: clamp(1.3rem, 4vw, 2.5rem);
  background: #ffffff;
  color: var(--ink);
}

.arecont-city-platform-page .contact-card__label {
  margin-bottom: 1.2rem;
  color: var(--accent) !important;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.arecont-city-platform-page .contact-card li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.arecont-city-platform-page .contact-card li > span {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
}

.arecont-city-platform-page .contact-card li p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.arecont-city-platform-page .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.3rem;
}

.arecont-city-platform-page .contact-card__note {
  margin: 1rem 0 0;
  color: var(--muted) !important;
  font-size: 0.72rem;
}

.arecont-city-platform-page .site-footer {
  padding: clamp(3rem, 6vw, 5.5rem) 0 1.5rem;
  border-top: 1px solid #303441;
  background: #0b0d12;
  color: #ffffff;
}

.arecont-city-platform-page .site-footer__grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, minmax(0, 0.75fr));
  gap: clamp(1.5rem, 4vw, 3.5rem);
}

.arecont-city-platform-page .site-footer__grid > div {
  display: grid;
  align-content: start;
  min-width: 0;
}

.arecont-city-platform-page .site-footer .brand__text strong {
  color: #ffffff;
}

.arecont-city-platform-page .site-footer .brand__text small,
.arecont-city-platform-page .site-footer p {
  color: #aab0be;
}

.arecont-city-platform-page .site-footer h2 {
  margin-bottom: 0.75rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.arecont-city-platform-page .site-footer__grid a:not(.brand) {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  color: #d5d8df;
  font-size: 0.83rem;
}

.arecont-city-platform-page .site-footer__grid > div:first-child > p {
  max-width: 25rem;
  margin-top: 1rem;
  font-size: 0.85rem;
}

.arecont-city-platform-page .site-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid #303441;
}

.arecont-city-platform-page .site-footer__bottom p {
  margin: 0;
  font-size: 0.72rem;
}

@media (min-width: 90rem) {
  .arecont-city-platform-page .hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(27rem, 0.86fr);
  }
}

@media (max-width: 68rem) {
  .arecont-city-platform-page .primary-nav {
    display: none;
  }

  .arecont-city-platform-page .mobile-menu {
    display: block;
  }

  .arecont-city-platform-page .hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .system-map {
    width: min(100%, 43rem);
  }

  .arecont-city-platform-page .scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .arecont-city-platform-page .pilot-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .arecont-city-platform-page .maturity-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .arecont-city-platform-page .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 48rem) {
  :root {
    --section-gap: 4rem;
  }

  .arecont-city-platform-page .site-header__inner {
    min-height: 4.5rem;
  }

  .arecont-city-platform-page .brand__text small {
    max-width: 14rem;
  }

  .arecont-city-platform-page .section-heading,
  .arecont-city-platform-page .problem-grid,
  .arecont-city-platform-page .human-section__grid,
  .arecont-city-platform-page .pilot-section__heading,
  .arecont-city-platform-page .metrics-grid,
  .arecont-city-platform-page .security-section__grid,
  .arecont-city-platform-page .faq-grid,
  .arecont-city-platform-page .contact-section__grid,
  .arecont-city-platform-page .commercial-layer,
  .arecont-city-platform-page .pilot-output {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .faq-grid__heading {
    position: static;
  }

  .arecont-city-platform-page .principle-strip__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .arecont-city-platform-page .principle-strip__grid > div:nth-child(2) {
    border-right: 0;
  }

  .arecont-city-platform-page .principle-strip__grid > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .arecont-city-platform-page .boundary-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .pilot-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 34rem) {
  .arecont-city-platform-page h1 {
    font-size: clamp(2rem, 12vw, 3.15rem);
  }

  .arecont-city-platform-page h2 {
    font-size: clamp(1.75rem, 10vw, 2.6rem);
  }

  .arecont-city-platform-page .brand__text small {
    display: none;
  }

  .arecont-city-platform-page .system-map__head {
    display: grid;
    justify-content: start;
  }

  .arecont-city-platform-page .system-map__canvas {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  .arecont-city-platform-page .system-map__canvas::before,
  .arecont-city-platform-page .system-map__canvas::after {
    display: none;
  }

  .arecont-city-platform-page .source-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .arecont-city-platform-page .signal-board,
  .arecont-city-platform-page .scenario-grid,
  .arecont-city-platform-page .pilot-steps,
  .arecont-city-platform-page .maturity-grid,
  .arecont-city-platform-page .site-footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .principle-strip__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .principle-strip__grid > div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .arecont-city-platform-page .principle-strip__grid > div:last-child {
    border-bottom: 0;
  }

  .arecont-city-platform-page .button-row,
  .arecont-city-platform-page .contact-card__actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .button {
    width: 100%;
  }

  .arecont-city-platform-page .site-footer__bottom {
    display: grid;
  }
}

@media (max-width: 24.5rem) {
  :root {
    --gutter: 0.75rem;
    --section-gap: 3.25rem;
  }

  .arecont-city-platform-page :is(h1, h2, h3, p, li, a, span, strong, small, summary) {
    min-width: 0;
    hyphens: auto;
    overflow-wrap: anywhere;
  }

  .arecont-city-platform-page .site-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.5rem;
  }

  .arecont-city-platform-page .site-header__inner > .brand {
    grid-column: 1 / -1;
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }

  .arecont-city-platform-page .site-header__inner > .arecont-global-nav {
    grid-column: 1;
  }

  .arecont-city-platform-page .site-header__inner > .mobile-menu {
    grid-column: 2;
  }

  .arecont-city-platform-page .brand__text {
    flex: 1 1 0;
    min-width: 0;
  }

  .arecont-city-platform-page .brand__mark {
    width: 2.15rem;
  }

  .arecont-city-platform-page .brand__text strong {
    display: block;
    width: 100%;
    font-size: 1.05rem;
    letter-spacing: 0;
  }

  .arecont-city-platform-page .mobile-menu summary {
    padding-inline: 0.65rem;
  }

  .arecont-city-platform-page .breadcrumbs ol,
  .arecont-city-platform-page .system-map__head {
    font-size: 0.62rem;
  }

  .arecont-city-platform-page .operator-panel__decision {
    grid-template-columns: minmax(0, 1fr);
  }

  .arecont-city-platform-page .operator-panel__decision span,
  .arecont-city-platform-page .operator-panel__decision strong {
    padding-inline: 0.15rem;
  }

  .arecont-city-platform-page .decision-flow li,
  .arecont-city-platform-page .security-checklist li,
  .arecont-city-platform-page .contact-card li,
  .arecont-city-platform-page .metric-list article {
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: 0.6rem;
  }

  .arecont-city-platform-page .boundary-card,
  .arecont-city-platform-page .scenario-grid article,
  .arecont-city-platform-page .contact-card,
  .arecont-city-platform-page .pilot-output {
    padding: 1rem;
  }
}

@media (max-width: 15rem) {
  .arecont-city-platform-page .brand__text {
    display: none;
  }
}

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

  .arecont-city-platform-page *,
  .arecont-city-platform-page *::before,
  .arecont-city-platform-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}