:root {
  --ink: #101418;
  --coal: #161b20;
  --slate: #2c3944;
  --steel: #5d7280;
  --mist: #f4f7f7;
  --paper: #ffffff;
  --line: rgba(16, 20, 24, 0.12);
  --gold: #c99a38;
  --green: #4d8067;
  --blue: #2f6f8f;
  --shadow: 0 24px 80px rgba(16, 20, 24, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--mist);
  line-height: 1.6;
  overflow-x: hidden;
}

main,
section,
header,
footer,
.wrap,
.nav,
.section-head,
.grid-3,
.grid-4,
.split,
.guide-grid,
.trust-grid,
.article-cta,
.band .wrap,
.footer .wrap,
.service,
.guide-card,
.stat,
.article-card,
.process-step,
.visual-panel {
  min-width: 0;
}

h1,
h2,
h3,
p,
li,
a,
strong,
span {
  overflow-wrap: break-word;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(16, 20, 24, 0.82);
  color: var(--paper);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
  flex: 0 1 auto;
}

.brand img {
  width: 42px;
  height: 54px;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-size: 0.9rem;
  line-height: 1.1;
}

.brand span {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  margin-top: 2px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
  gap: 18px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.88rem;
}

.nav-links .button {
  width: auto;
  min-width: max-content;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--paper);
}

.button,
.button-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 4px;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.button {
  background: var(--gold);
  color: #15110a;
}

.button-light {
  background: var(--paper);
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 88vh;
  color: var(--paper);
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(16, 20, 24, 0.9), rgba(16, 20, 24, 0.45) 56%, rgba(16, 20, 24, 0.18)),
    linear-gradient(0deg, rgba(16, 20, 24, 0.92), rgba(16, 20, 24, 0.08) 54%);
  z-index: 1;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 170px 0 72px;
}

.choice-hero,
.division-hero {
  position: relative;
  color: var(--paper);
  overflow: hidden;
}

.choice-hero {
  min-height: 74vh;
  display: grid;
  align-items: end;
}

.choice-hero::before,
.division-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(13, 17, 21, 0.94), rgba(13, 17, 21, 0.6) 46%, rgba(13, 17, 21, 0.18) 72%),
    linear-gradient(0deg, rgba(13, 17, 21, 0.92), rgba(13, 17, 21, 0.08) 62%);
}

.choice-hero img,
.division-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.choice-hero-content,
.division-hero .wrap {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.choice-hero-content {
  padding: 138px 0 82px;
}

.choice-hero h1,
.division-hero h1 {
  max-width: 780px;
}

.division-hero {
  min-height: 620px;
  display: grid;
  align-items: end;
}

.division-hero .wrap {
  padding: 150px 0 82px;
}

.division-hero p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.silo-selector {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  background: #0d1115;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.silo-card {
  min-height: 330px;
  padding: clamp(26px, 4vw, 42px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid rgba(255, 255, 255, 0.13);
  color: var(--paper);
  background:
    linear-gradient(180deg, rgba(13, 17, 21, 0.7), rgba(13, 17, 21, 0.95)),
    var(--coal);
  transition: background 180ms ease, transform 180ms ease;
}

.silo-card:last-child {
  border-right: 0;
}

.silo-card:hover {
  transform: translateY(-3px);
  background:
    linear-gradient(180deg, rgba(201, 154, 56, 0.22), rgba(13, 17, 21, 0.94)),
    var(--coal);
}

.silo-card h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.55rem);
  line-height: 1.06;
  margin: 16px 0;
}

.silo-card p {
  color: rgba(255, 255, 255, 0.72);
  max-width: 440px;
}

.silo-card strong {
  color: var(--gold);
  margin-top: 34px;
}

.engineering-card {
  background:
    linear-gradient(180deg, rgba(13, 17, 21, 0.66), rgba(13, 17, 21, 0.95)),
    url("/assets/infrastructure.jpg") center / cover;
}

.survey-card {
  background:
    linear-gradient(180deg, rgba(13, 17, 21, 0.56), rgba(13, 17, 21, 0.95)),
    url("/assets/field-survey-hero.png") center / cover;
}

.research-card {
  background:
    linear-gradient(180deg, rgba(13, 17, 21, 0.82), rgba(13, 17, 21, 0.96)),
    url("/assets/research-dashboard.png") center / cover;
}

.text-service {
  min-height: 250px;
}

.text-service div {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eyebrow {
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(2.55rem, 4.8vw, 4.85rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.8rem, 3.8vw, 3.35rem);
  line-height: 1.06;
  letter-spacing: 0;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.16rem;
  line-height: 1.25;
  margin-bottom: 10px;
}

.hero-copy {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.02rem, 1.55vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 46px;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(920px, 100%);
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.proof-strip div {
  padding: 18px;
  background: rgba(16, 20, 24, 0.62);
}

.proof-strip strong {
  display: block;
  color: var(--paper);
  font-size: 1.35rem;
  line-height: 1;
}

.proof-strip span {
  display: block;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.78rem;
  margin-top: 8px;
}

.section {
  padding: 86px 0;
}

.section.dark {
  background: var(--coal);
  color: var(--paper);
}

.section.paper {
  background: var(--paper);
}

.trust-section {
  background: #edf3f1;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1.15fr) repeat(3, minmax(0, 0.8fr));
  gap: 18px;
  align-items: stretch;
}

.trust-grid h2 {
  max-width: 560px;
  margin-bottom: 0;
}

.trust-item {
  padding: 22px;
  border-top: 4px solid var(--gold);
  background: var(--paper);
  box-shadow: 0 12px 34px rgba(16, 20, 24, 0.06);
}

.trust-item strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.02rem;
}

.trust-item p {
  margin-bottom: 0;
  color: var(--steel);
  font-size: 0.94rem;
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.62fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 34px;
}

.section-head p {
  color: var(--steel);
  font-size: 1.02rem;
}

.dark .section-head p,
.dark .muted {
  color: rgba(255, 255, 255, 0.68);
}

.muted {
  color: var(--steel);
}

.grid-3,
.grid-4,
.split {
  display: grid;
  gap: 18px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.split {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 44px;
}

.split > *,
.section-head > *,
.grid-3 > *,
.grid-4 > *,
.guide-grid > *,
.trust-grid > * {
  min-width: 0;
}

.service,
.stat,
.article-card,
.process-step {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 8px;
  overflow: hidden;
}

.dark .service,
.dark .stat,
.dark .article-card,
.dark .process-step {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.service img {
  width: 100%;
  min-width: 0;
  aspect-ratio: 1.55;
  object-fit: cover;
}

.service div,
.article-card,
.process-step,
.stat {
  padding: 22px;
}

.service p,
.article-card p,
.process-step p,
.stat p {
  color: var(--steel);
  margin-bottom: 0;
}

.dark .service p,
.dark .article-card p,
.dark .process-step p,
.dark .stat p {
  color: rgba(255, 255, 255, 0.66);
}

.visual-panel {
  position: relative;
}

.visual-panel img {
  width: 100%;
  min-height: 440px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.float-note {
  position: absolute;
  right: 24px;
  bottom: 24px;
  max-width: 300px;
  padding: 18px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 50px rgba(16, 20, 24, 0.18);
}

.float-note strong {
  display: block;
  margin-bottom: 6px;
}

.float-note p {
  margin: 0;
  color: var(--slate);
  font-size: 0.9rem;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: flex;
  min-width: 0;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.feature-list li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 8px;
  flex: 0 0 auto;
  background: var(--gold);
}

.dark .feature-list li {
  border-color: rgba(255, 255, 255, 0.14);
}

.band {
  background: var(--green);
  color: var(--paper);
  padding: 46px 0;
}

.band .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: center;
}

.band p {
  color: rgba(255, 255, 255, 0.76);
  margin-bottom: 0;
}

.process {
  counter-reset: step;
}

.process-step {
  position: relative;
}

.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  color: var(--gold);
  font-weight: 850;
  margin-bottom: 16px;
}

.article-hero {
  padding: 150px 0 74px;
  background: var(--coal);
  color: var(--paper);
}

.article-hero p {
  max-width: 780px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.15rem;
}

.article-body {
  background: var(--paper);
  padding: 72px 0;
}

.article-body .content {
  max-width: 820px;
}

.article-body h2 {
  font-size: 2rem;
  margin-top: 44px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-note {
  margin-bottom: 32px;
  padding: 16px 18px;
  border-left: 4px solid var(--gold);
  background: var(--mist);
  color: var(--slate);
  font-size: 0.95rem;
}

.source-list a,
.text-link {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 54px;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--mist);
}

.article-cta h2 {
  margin-bottom: 10px;
}

.article-cta p {
  margin-bottom: 0;
  color: var(--slate);
}

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

.guide-card {
  min-height: 235px;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--paper);
  border-top: 4px solid var(--gold);
  display: flex;
  flex-direction: column;
  box-shadow: 0 14px 34px rgba(16, 20, 24, 0.06);
}

.guide-card h3 {
  margin: 10px 0 8px;
  font-size: 1.34rem;
}

.guide-card p {
  color: var(--slate);
  font-size: 0.95rem;
  margin-bottom: 22px;
}

.guide-card .text-link {
  margin-top: auto;
  text-decoration: none;
}

.footer {
  background: #0d1115;
  color: var(--paper);
  padding: 54px 0;
}

.footer .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
}

.footer p {
  color: rgba(255, 255, 255, 0.66);
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    flex-wrap: wrap;
    justify-content: flex-start;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .nav-links .button {
    width: auto;
  }

  .proof-strip,
  .section-head,
  .grid-3,
  .grid-4,
  .split,
  .silo-selector,
  .guide-grid,
  .trust-grid,
  .article-cta,
  .band .wrap,
  .footer .wrap {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 820px;
  }

  .choice-hero,
  .division-hero {
    min-height: 660px;
  }

  .hero-content {
    padding-top: 150px;
  }

  .choice-hero-content,
  .division-hero .wrap {
    padding-top: 150px;
  }

  .silo-card {
    min-height: 250px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  }

  .visual-panel img {
    min-height: 320px;
  }

  .split {
    gap: 30px;
  }

  .split .visual-panel {
    width: 100%;
    overflow: hidden;
  }

  .float-note {
    position: static;
    max-width: none;
    margin-top: 14px;
  }
}

@media (max-width: 560px) {
  .nav {
    gap: 10px;
  }

  .brand {
    min-width: 0;
  }

  .nav-links {
    width: 100%;
    gap: 13px;
    font-size: 0.8rem;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .nav-links .button {
    width: 100%;
    min-width: 0;
  }

  h1 {
    font-size: 2.45rem;
    line-height: 1.04;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-content,
  .hero-copy {
    max-width: calc(100vw - 32px);
  }

  .hero-copy {
    max-width: 330px;
    font-size: 1rem;
  }

  .hero {
    min-height: 700px;
  }

  .choice-hero,
  .division-hero {
    min-height: 620px;
  }

  .hero-actions,
  .hero-actions .button,
  .hero-actions .button-light,
  .band .button-light,
  .footer .button {
    width: 100%;
  }

  .section,
  .article-body {
    padding: 58px 0;
  }

  .article-hero {
    padding: 96px 0 58px;
  }

  .article-hero p,
  .division-hero p {
    font-size: 1rem;
  }

  .split {
    gap: 24px;
  }

  .visual-panel img {
    width: 100%;
    min-height: 260px;
    max-height: 360px;
  }

  .feature-list {
    gap: 8px;
  }

  .feature-list li {
    display: grid;
    grid-template-columns: 9px minmax(0, 1fr);
    gap: 12px;
  }

  .guide-card,
  .service div,
  .article-card,
  .process-step,
  .stat {
    padding: 18px;
  }
}