:root {
  --ink: #101816;
  --muted: #5c6a67;
  --line: #dfe8e5;
  --paper: #f5f8f7;
  --panel: #ffffff;
  --teal: #0a6a61;
  --teal-dark: #063f3a;
  --cyan: #2eb7c7;
  --amber: #d79235;
  --mint: #e7f4ef;
  --sky: #e8f2f6;
  --shadow: 0 22px 70px rgba(16, 24, 22, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(223, 232, 229, 0.9);
  background: rgba(245, 248, 247, 0.94);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 210px;
}

.brand img {
  width: 100%;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #33433f;
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  padding: 8px 0;
}

.nav-group {
  position: relative;
  padding: 16px 0;
}

.nav-menu {
  position: absolute;
  top: 46px;
  left: 50%;
  display: none;
  min-width: 230px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 45px rgba(16, 24, 22, 0.12);
  transform: translateX(-50%);
}

.nav-group:hover .nav-menu,
.nav-group:focus-within .nav-menu {
  display: grid;
  gap: 4px;
}

.nav-menu a {
  padding: 10px 12px;
  border-radius: 6px;
  white-space: nowrap;
}

.nav-menu a:hover {
  background: var(--mint);
}

.nav-links a.is-active {
  color: var(--teal);
}

.nav-cta {
  padding: 10px 15px !important;
  border: 1px solid var(--teal);
  border-radius: 7px;
  background: #ffffff;
  color: var(--teal-dark);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

#app {
  outline: none;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100vh - 74px);
  padding: 76px 5vw;
  overflow: hidden;
  background: #111a18;
}

.hero.immersive {
  background-image: var(--hero-bg);
  background-size: cover;
  background-position: center;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 14, 13, 0.94) 0%, rgba(4, 14, 13, 0.78) 36%, rgba(4, 14, 13, 0.42) 60%, rgba(4, 14, 13, 0.14) 84%),
    linear-gradient(0deg, rgba(4, 14, 13, 0.52), rgba(4, 14, 13, 0.16)),
    radial-gradient(circle at 28% 48%, rgba(4, 14, 13, 0.72), transparent 34%);
}

.hero .hero-copy {
  max-width: 720px;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 760px;
  color: #ffffff;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(44px, 6.3vw, 78px);
  line-height: 1;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 3.8vw, 52px);
  line-height: 1.07;
}

h3 {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.2;
}

.hero-lede {
  margin: 24px 0 0;
  max-width: 660px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 7px;
  font-weight: 740;
}

.button.primary {
  background: var(--teal-dark);
  color: #ffffff;
  box-shadow: 0 12px 30px rgba(6, 63, 58, 0.24);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  backdrop-filter: blur(10px);
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.proof-strip span {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.hero-media {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #dfe8e5;
  box-shadow: var(--shadow);
}

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

.hero-media img {
  width: 100%;
  height: min(64vh, 620px);
  min-height: 430px;
  object-fit: cover;
}

.section {
  padding: 92px 5vw;
}

.section-heading {
  max-width: 900px;
  margin-bottom: 34px;
}

.section-heading p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.split-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 54px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.split-intro > p {
  margin: 0;
  color: #43534f;
  font-size: 20px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.info-card {
  min-height: 244px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 10px 28px rgba(16, 24, 22, 0.06);
}

.card-kicker {
  display: inline-flex;
  margin-bottom: 26px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 860;
  text-transform: uppercase;
}

.info-card p,
.application-row p,
.application-row li,
.pilot-step p {
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--teal);
  font-weight: 760;
}

.visual-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(460px, 1.22fr);
  align-items: center;
  gap: 52px;
  background: #ffffff;
}

.visual-section.alt {
  background: var(--paper);
  grid-template-columns: minmax(460px, 1.18fr) minmax(0, 0.82fr);
}

.feature-wall {
  position: relative;
  background-image:
    linear-gradient(90deg, rgba(6, 20, 18, 0.92), rgba(6, 20, 18, 0.72)),
    var(--wall-bg);
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.feature-wall .section-heading p,
.feature-wall .info-card p {
  color: rgba(255, 255, 255, 0.72);
}

.feature-wall .info-card {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  box-shadow: none;
  backdrop-filter: blur(14px);
}

.system-layers-clean {
  background:
    linear-gradient(180deg, #ffffff 0%, #f5f8f7 100%);
  color: var(--ink);
}

.system-layers-clean .section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 40px;
  align-items: end;
  max-width: none;
}

.system-layers-clean .section-heading::after {
  content: "A practical architecture should be easy to read before it is impressive. Each layer has a distinct job: capture the signal, interpret the variation, support the decision, and connect the knowledge.";
  color: var(--muted);
  font-size: 18px;
}

.system-layers-clean .card-grid.four {
  position: relative;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 18px 48px rgba(16, 24, 22, 0.08);
}

.system-layers-clean .info-card {
  min-height: 300px;
  border: 0;
  border-right: 1px solid var(--line);
  border-radius: 0;
  background: #ffffff;
  box-shadow: none;
}

.system-layers-clean .info-card:last-child {
  border-right: 0;
}

.system-layers-clean .card-kicker {
  width: 44px;
  height: 44px;
  margin-bottom: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--mint);
  color: var(--teal-dark);
}

.system-layers-clean .info-card h3 {
  max-width: 230px;
}

.system-layers-glass {
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(180deg, rgba(4, 18, 17, 0.32), rgba(4, 18, 17, 0.5)),
    var(--layers-bg);
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.system-layers-glass .section-heading {
  display: block;
  max-width: 680px;
  margin-bottom: 32px;
}

.system-layers-glass .section-heading h2 {
  max-width: 620px;
  margin-top: 10px;
}

.system-layers-glass .section-heading::after {
  content: "Each layer has a distinct job: capture the signal, interpret the variation, support the decision, and connect the knowledge.";
  display: block;
  max-width: 640px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
  line-height: 1.55;
}

.system-layers-glass .eyebrow {
  color: #8de4dc;
}

.system-layers-glass .card-grid.four {
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.system-layers-glass .info-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(18px);
}

.card-visual {
  width: 100%;
  aspect-ratio: 1.35 / 1;
  object-fit: cover;
  border-radius: 7px;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.system-layers-glass .card-kicker {
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  background: rgba(141, 228, 220, 0.18);
  color: #ffffff;
}

.system-layers-glass .info-card p {
  color: rgba(255, 255, 255, 0.72);
}

.metric-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 0 5vw 92px;
  background: #ffffff;
}

.metric-band div {
  padding: 34px;
  background: var(--teal-dark);
  color: #ffffff;
}

.metric-band strong {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(28px, 4vw, 54px);
  line-height: 1;
}

.metric-band span {
  color: rgba(255, 255, 255, 0.72);
}

.industry-scale {
  padding: 94px 5vw;
  background: #ffffff;
}

.scale-heading {
  max-width: 960px;
  margin-bottom: 36px;
}

.scale-heading p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.scale-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.scale-tile {
  display: grid;
  grid-template-rows: 220px 1fr;
  background: #ffffff;
}

.scale-tile img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.scale-tile div {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
}

.scale-tile p {
  margin: 0;
  color: var(--muted);
}

.scale-tile strong {
  color: var(--teal);
  font-size: 18px;
  line-height: 1.25;
}

.learn-index {
  display: grid;
  gap: 28px;
  background: #ffffff;
}

.learn-hub-card {
  display: grid;
  grid-template-columns: minmax(460px, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 42px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 34px rgba(16, 24, 22, 0.06);
}

.learn-hub-card.reverse {
  grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
}

.learn-hub-card.reverse img {
  order: 2;
}

.learn-hub-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 7px;
}

.learn-hub-card p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.image-band {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(223, 232, 229, 0.9);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.image-band img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.image-band.contain-image {
  background: #061916;
  padding: 18px;
}

.image-band.contain-image img {
  aspect-ratio: auto;
  max-height: 500px;
  object-fit: contain;
  margin: 0 auto;
}

.image-band figcaption {
  padding: 12px 16px;
  color: var(--muted);
  font-size: 13px;
  background: #ffffff;
}

.knowledge-grid {
  background: #ffffff;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  background: #ffffff;
}

.scene-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 560px;
  overflow: hidden;
  border-radius: 8px;
  background-image:
    linear-gradient(180deg, rgba(7, 18, 16, 0.06), rgba(7, 18, 16, 0.86)),
    var(--scene-bg);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.scene-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 14, 13, 0.08) 0%, rgba(4, 14, 13, 0.48) 44%, rgba(4, 14, 13, 0.9) 100%),
    linear-gradient(90deg, rgba(4, 14, 13, 0.54), rgba(4, 14, 13, 0.12));
}

.scene-card-content {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 30px;
  color: #ffffff;
}

.scene-card-content p,
.scene-card-content li {
  color: rgba(255, 255, 255, 0.76);
}

.scene-card-content ul {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.scene-card-content li {
  position: relative;
  padding-left: 20px;
}

.scene-card-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

.application-scenarios {
  background:
    linear-gradient(180deg, #eef6fb 0%, #ffffff 18%, #ffffff 100%);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.scenario-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 390px;
  overflow: hidden;
  border-radius: 8px;
  background-image: var(--scenario-bg);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.scenario-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 14, 13, 0.04) 0%, rgba(4, 14, 13, 0.42) 40%, rgba(4, 14, 13, 0.92) 100%),
    linear-gradient(90deg, rgba(4, 14, 13, 0.5), rgba(4, 14, 13, 0.08));
}

.scenario-card-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  padding: 26px;
  color: #ffffff;
}

.scenario-card-content h3 {
  margin: 0;
  font-size: 29px;
  line-height: 1.08;
}

.scenario-card-content p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.scenario-card-content span {
  display: inline-flex;
  width: fit-content;
  margin-top: 6px;
  padding: 8px 10px;
  border: 1px solid rgba(141, 228, 220, 0.42);
  border-radius: 6px;
  background: rgba(6, 63, 58, 0.48);
  color: #d9fffb;
  font-size: 13px;
  font-weight: 760;
  line-height: 1.35;
}

.pilot-board {
  background:
    linear-gradient(180deg, #ffffff 0%, #edf6f3 100%);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.pilot-step {
  min-height: 240px;
  padding: 24px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid var(--line);
}

.pilot-step span {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 860;
}

.contact-page {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  align-items: center;
  gap: 54px;
  min-height: calc(100vh - 74px);
  padding: 64px 5vw;
  background: linear-gradient(115deg, #f7faf9, #e8f2f6);
}

.contact-page p {
  max-width: 680px;
  color: var(--muted);
  font-size: 19px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button.secondary.light {
  border-color: rgba(6, 63, 58, 0.28);
  background: #ffffff;
  color: var(--teal-dark);
}

.contact-note {
  margin-top: 18px;
  font-size: 16px !important;
}

.contact-note a {
  color: var(--teal);
  font-weight: 760;
}

.contact-page img {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 5vw;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer div {
  display: grid;
  gap: 4px;
}

.site-footer strong {
  color: var(--ink);
}

.site-footer a {
  color: var(--teal);
  font-weight: 760;
}

@media (max-width: 1080px) {
  .nav-links {
    gap: 14px;
    font-size: 13px;
  }

  .brand {
    width: 180px;
  }

  .card-grid.four,
  .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .menu-toggle { display: block; }

  .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 5vw 22px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
  }

  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 13px 0; }
  .nav-group { padding: 0; }
  .nav-menu {
    position: static;
    display: grid;
    min-width: 0;
    padding: 4px 0 8px 16px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transform: none;
  }

  .hero,
  .split-intro,
  .visual-section,
  .visual-section.alt,
  .contact-page {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }


  .hero-media img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

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

  .scene-grid,
  .scenario-grid,
  .metric-band,
  .scale-grid,
  .learn-hub-card,
  .learn-hub-card.reverse {
    grid-template-columns: 1fr;
  }

  .learn-hub-card.reverse img { order: 0; }

  .scene-card {
    min-height: 440px;
  }
}

@media (max-width: 560px) {
  .site-header { min-height: 66px; }
  .nav-links { top: 66px; }
  .brand { width: 168px; }
  .hero, .section, .contact-page { padding-left: 22px; padding-right: 22px; }
  .hero { padding-top: 34px; }
  h1 { font-size: 41px; }
  .hero-lede, .contact-page p { font-size: 17px; }
  .card-grid.four, .step-grid { grid-template-columns: 1fr; }
  .scene-card-content { padding: 22px; }
  .site-footer { flex-direction: column; }
}