:root {
  color-scheme: light;
  --background: #f8fafb;
  --surface: #f8fafb;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f2f4f5;
  --surface-container: #eceeef;
  --surface-container-high: #e6e8e9;
  --surface-container-highest: #e1e3e4;
  --surface-bright: #f8fafb;
  --surface-dim: #d8dadb;
  --primary: #004367;
  --primary-container: #005c8a;
  --primary-fixed: #cce5ff;
  --primary-fixed-dim: #90cdff;
  --secondary: #1b6d24;
  --secondary-container: #a0f399;
  --tertiary: #004750;
  --tertiary-container: #00606c;
  --on-surface: #191c1d;
  --on-surface-variant: #3f484c;
  --outline-variant: #bfc8cc;
  --error: #ba1a1a;
  --shadow-ambient: 0 24px 54px -28px rgba(0, 67, 103, 0.36);
  --shadow-float: 0 32px 60px -34px rgba(0, 67, 103, 0.42);
  --ghost-outline: inset 0 0 0 1px rgba(111, 121, 124, 0.15);
  --radius: 8px;
  --max: 1280px;
  --mobile-nav-top: 4.6rem;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--on-surface);
  background:
    radial-gradient(circle at 82% 10%, rgba(144, 205, 255, 0.28), transparent 29rem),
    radial-gradient(circle at 9% 20%, rgba(85, 215, 237, 0.14), transparent 24rem),
    var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background: url("/assets/site-background.svg") center / cover no-repeat;
  opacity: 0.1;
}

a {
  color: inherit;
}

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

p {
  max-width: 72ch;
}

:focus-visible {
  outline: 3px solid rgba(0, 92, 138, 0.48);
  outline-offset: 4px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  padding: 0.9rem clamp(1rem, 3vw, 2rem);
  background: rgba(248, 250, 251, 0.72);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 12px 32px -30px rgba(0, 67, 103, 0.42);
}

.brand img {
  width: clamp(10rem, 15vw, 14rem);
}

.desktop-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.15rem;
}

.nav-link,
.nav-menu a,
.mobile-nav a,
.site-footer a {
  text-decoration: none;
}

.nav-link {
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.68rem 0.78rem;
  text-transform: uppercase;
  transition: background-color 180ms ease, color 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: var(--primary);
  background: var(--surface-container-low);
}

.has-menu {
  position: relative;
}

.nav-menu {
  position: absolute;
  top: calc(100% + 0.7rem);
  left: 0;
  min-width: 15rem;
  padding: 0.55rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow-float), var(--ghost-outline);
  opacity: 0;
  transform: translateY(-0.35rem);
  visibility: hidden;
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

.has-menu:hover .nav-menu,
.has-menu:focus-within .nav-menu,
.has-menu.is-open .nav-menu {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.nav-menu a,
.mobile-nav a {
  display: block;
  border-radius: 6px;
  color: var(--on-surface-variant);
  font-weight: 700;
  padding: 0.62rem 0.7rem;
}

.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu a.is-active,
.mobile-nav a:hover,
.mobile-nav a:focus-visible,
.mobile-nav a.is-active {
  color: var(--primary);
  background: var(--surface-container-low);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.86rem 1.18rem;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.1;
  text-decoration: none;
  transition: transform 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 18px 34px -22px rgba(0, 67, 103, 0.72);
}

.button-secondary {
  color: var(--primary);
  background: var(--surface-container-lowest);
  box-shadow: var(--ghost-outline);
}

.button-small {
  min-height: 2.5rem;
  padding: 0.68rem 0.95rem;
  font-size: 0.9rem;
}

.menu-toggle {
  display: none;
  width: 2.8rem;
  height: 2.8rem;
  border: 0;
  border-radius: var(--radius);
  background: var(--surface-container-lowest);
  box-shadow: var(--ghost-outline);
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 4px auto;
  background: var(--primary);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: var(--mobile-nav-top);
  left: 0;
  right: 0;
  z-index: 29;
  max-height: calc(100dvh - var(--mobile-nav-top));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.5rem 1rem 1rem;
  background: rgba(248, 250, 251, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 24px 42px -34px rgba(0, 67, 103, 0.65);
}

.mobile-nav .mobile-sub {
  margin-left: 1rem;
  color: var(--on-surface-variant);
  font-size: 0.93rem;
}

.mobile-nav .button {
  margin-top: 0.5rem;
  width: 100%;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(22rem, 1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5.5rem);
  max-width: var(--max);
  min-height: 820px;
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 7.5rem) clamp(1rem, 4vw, 2rem) clamp(3rem, 7vw, 6rem);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  min-width: 0;
}

.eyebrow {
  width: fit-content;
  margin: 0;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  color: var(--primary);
  background: var(--surface-container-low);
  box-shadow: var(--ghost-outline);
  font-size: 0.73rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  max-width: min(14ch, 100%);
  margin: 0;
  color: var(--on-surface);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.04;
}

h1 {
  font-size: clamp(3rem, 7vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 4.1rem);
}

h3 {
  max-width: 22ch;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.18;
}

.hero-body {
  margin: 0;
  color: var(--on-surface-variant);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.65rem;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem 1rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.hero-proof li {
  position: relative;
  min-height: 2.6rem;
  padding-left: 2rem;
  color: var(--on-surface-variant);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-proof li::before {
  position: absolute;
  top: 0.15rem;
  left: 0;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 999px;
  content: "";
  background: radial-gradient(circle at 50% 50%, var(--secondary) 0 36%, var(--secondary-container) 38% 100%);
}

.hero-visual {
  position: relative;
  min-height: 560px;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  box-shadow: var(--shadow-ambient);
}

.hero-visual::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    radial-gradient(circle at 22% 18%, rgba(144, 205, 255, 0.35), transparent 18rem),
    linear-gradient(180deg, rgba(0, 67, 103, 0.12), rgba(0, 67, 103, 0.34));
  z-index: 1;
  pointer-events: none;
}

.hero-visual::after {
  position: absolute;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  left: clamp(1rem, 3vw, 2rem);
  z-index: 2;
  content: "Network flow rate 12,450 m3/h · 2,4% loss";
  padding: 1.2rem;
  border-radius: var(--radius);
  color: var(--on-surface);
  background: rgba(248, 250, 251, 0.72);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--ghost-outline);
  font-weight: 900;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  padding: clamp(1rem, 3vw, 2rem);
  object-fit: contain;
  filter: saturate(1.08);
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  max-width: var(--max);
  margin: -1rem auto 0;
  padding: 0 clamp(1rem, 4vw, 2rem) 5rem;
}

.trust-strip span {
  border-radius: 999px;
  background: var(--surface-container-low);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  padding: 0.7rem 1rem;
  text-transform: uppercase;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 4vw, 2rem);
}

.section-muted {
  background: var(--surface-container-low);
}

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

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.narrow {
  max-width: 920px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(16rem, 0.72fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.section-copy {
  display: grid;
  gap: 1.2rem;
  color: var(--on-surface-variant);
  font-size: 1.03rem;
}

.section-copy > p:first-child,
.section-lead {
  color: var(--on-surface);
  font-size: clamp(1.18rem, 2vw, 1.45rem);
  line-height: 1.45;
}

.card-grid,
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.mini-card,
.showcase-card,
.inline-cta,
.contact-form,
.faq-list details,
.contact-details {
  border-radius: var(--radius);
  background: var(--surface-container-lowest);
  box-shadow: var(--ghost-outline);
}

.mini-card,
.showcase-card {
  display: grid;
  gap: 0.7rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: background-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.mini-card:hover,
.showcase-card:hover,
.mini-card:focus-within,
.showcase-card:focus-visible {
  background: var(--surface-bright);
  box-shadow: var(--shadow-ambient), var(--ghost-outline);
  transform: translateY(-2px);
}

.mini-card h3,
.showcase-card span {
  color: var(--on-surface);
  font-size: 1.2rem;
  font-weight: 900;
}

.mini-card p,
.showcase-card p {
  margin: 0;
}

.showcase-card {
  min-height: 13rem;
  background: var(--surface-container-low);
}

.showcase-card span {
  color: var(--primary);
}

.check-list,
.section-copy ol {
  display: grid;
  gap: 0.78rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.section-copy ol li {
  position: relative;
  padding-left: 2rem;
}

.check-list li::before,
.section-copy ol li::before {
  position: absolute;
  top: 0.1rem;
  left: 0;
  display: grid;
  place-items: center;
  width: 1.28rem;
  height: 1.28rem;
  border-radius: 999px;
  color: var(--primary);
  background: var(--secondary-container);
  content: "";
  font-size: 0.72rem;
  font-weight: 900;
}

.section-copy ol {
  counter-reset: steps;
}

.section-copy ol li {
  counter-increment: steps;
}

.section-copy ol li::before {
  content: counter(steps);
}

pre.mini-card {
  overflow: auto;
  color: var(--primary-fixed);
  background: var(--primary);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.92em;
}

.inline-cta {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  padding: clamp(1.3rem, 3vw, 2rem);
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: #ffffff;
}

.inline-cta h3,
.inline-cta p {
  color: inherit;
}

.inline-cta .button-secondary {
  width: fit-content;
}

.global-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 24rem) auto;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  max-width: var(--max);
  margin: clamp(3rem, 8vw, 6rem) auto;
  padding: clamp(1.4rem, 4vw, 3rem);
  border-radius: var(--radius);
  background: var(--surface-container-low);
}

.global-cta h2 {
  max-width: 15ch;
}

.global-cta img {
  max-height: 16rem;
  justify-self: center;
}

.microcopy {
  color: var(--on-surface-variant);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(14rem, 1.2fr) repeat(4, minmax(8rem, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(3rem, 6vw, 5rem) clamp(1rem, 4vw, 2rem);
  background: var(--surface-container-high);
}

.site-footer > * {
  max-width: 18rem;
}

.site-footer img {
  width: 12rem;
}

.site-footer h2 {
  margin-bottom: 0.85rem;
  color: var(--on-surface);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  align-content: start;
  gap: 0.42rem;
}

.site-footer a {
  display: block;
  width: fit-content;
  border-radius: 6px;
  color: var(--on-surface-variant);
  font-weight: 700;
  line-height: 1.35;
  padding: 0.14rem 0;
}

.footer-brand {
  display: grid;
  gap: 1rem;
  color: var(--on-surface-variant);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(20rem, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--on-surface);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.contact-form label:has(textarea),
.contact-form button,
.form-status {
  grid-column: 1 / -1;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 0;
  border-radius: var(--radius);
  background: var(--surface-container-low);
  color: var(--on-surface);
  font: inherit;
  letter-spacing: 0;
  padding: 0.9rem 1rem;
  text-transform: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 0;
  background: var(--surface-container-lowest);
  box-shadow: inset 0 0 0 2px var(--primary);
}

.form-status {
  min-height: 1.5rem;
  margin: 0;
  color: var(--primary);
  font-weight: 800;
}

.contact-details {
  margin-top: 1.5rem;
  padding: 1.4rem;
}

.faq-list {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

.faq-list details {
  padding: 1.2rem 1.35rem;
}

.faq-list summary {
  cursor: pointer;
  color: var(--on-surface);
  font-size: 1.08rem;
  font-weight: 900;
}

.faq-list details > *:not(summary) {
  color: var(--on-surface-variant);
}

.selected-hero h1 span {
  color: var(--primary);
}

.centered-hero {
  grid-template-columns: minmax(0, 1fr);
  min-height: 520px;
  text-align: center;
}

.centered-hero .hero-copy {
  align-items: center;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
}

.compact-hero {
  min-height: 430px;
  padding-bottom: 2rem;
}

.selected-heading {
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.selected-heading.centered {
  align-items: center;
  text-align: center;
}

.selected-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--on-surface-variant);
  font-size: 1.15rem;
}

.selected-card-grid,
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.timeline-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.authority-card,
.solution-card,
.step-card,
.governance-card,
.selected-panel,
.form-panel {
  border-radius: var(--radius);
  background: var(--surface-container-lowest);
  box-shadow: var(--ghost-outline);
}

.authority-card,
.step-card,
.governance-card {
  display: grid;
  gap: 0.9rem;
  padding: clamp(1.3rem, 3vw, 2.4rem);
}

.authority-card > span,
.step-card > span {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  color: #ffffff;
  background: var(--primary);
  font-weight: 900;
}

.authority-card p,
.step-card p,
.governance-card p,
.solution-card p,
.selected-panel p {
  margin: 0;
  color: var(--on-surface-variant);
}

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

.solution-card {
  display: grid;
  min-height: 18rem;
  align-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.4rem, 4vw, 3rem);
  background: var(--surface-container-low);
  text-decoration: none;
  transition: background-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.solution-card:hover,
.solution-card:focus-visible {
  background: var(--surface-bright);
  box-shadow: var(--shadow-ambient), var(--ghost-outline);
  transform: translateY(-2px);
}

.solution-card span {
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.governance-card {
  grid-column: span 6;
  min-height: 16rem;
}

.governance-card.wide {
  grid-column: span 8;
}

.governance-card.dark {
  grid-column: span 4;
  color: #ffffff;
  background: var(--primary);
}

.governance-card.dark h3,
.governance-card.dark p {
  color: inherit;
}

.governance-card a,
.linkish {
  color: var(--primary);
  font-weight: 900;
}

.partnership-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.78fr) minmax(0, 1.2fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.partnership-stack {
  display: grid;
  gap: 1rem;
}

.selected-panel {
  padding: clamp(1.4rem, 3vw, 2.3rem);
}

.selected-panel h2 {
  max-width: 16ch;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.form-panel {
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.4rem, 4vw, 3rem);
}

.strategic-form {
  padding: 0;
  background: transparent;
  box-shadow: none;
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
    justify-self: end;
  }

  .mobile-nav.is-open {
    display: grid;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    min-height: 420px;
  }

  .hero-visual img {
    min-height: 420px;
  }

  .split-section,
  .contact-grid,
  .partnership-grid,
  .global-cta,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .global-cta .button {
    width: fit-content;
  }
}

@media (max-width: 680px) {
  .hero {
    padding-top: 3rem;
  }

  .hero-proof,
  .card-grid,
  .showcase-grid,
  .selected-card-grid,
  .timeline-grid,
  .solution-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

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

  .governance-card,
  .governance-card.wide,
  .governance-card.dark {
    grid-column: auto;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 340px;
  }

  .hero-visual::after {
    font-size: 0.9rem;
  }

  .section {
    padding-block: 3.5rem;
  }
}

@media (max-width: 900px) {
  .centered-hero h1 {
    max-width: 11ch;
    overflow-wrap: break-word;
    font-size: clamp(2.1rem, 6vw, 3rem);
  }
}

@media (max-width: 420px) {
  .brand img {
    width: 9.4rem;
  }

  h1 {
    font-size: 2.35rem;
  }

  .centered-hero h1 {
    max-width: 12ch;
  }

  .button,
  .hero-actions,
  .global-cta .button {
    width: 100%;
  }

  .trust-strip {
    justify-content: flex-start;
  }
}