:root {
  color-scheme: light;
  --ink: #111317;
  --muted: #5e656b;
  --paper: #f7f3ea;
  --panel: #ffffff;
  --line: #d8d2c5;
  --teal: #155e63;
  --rust: #b85f3a;
  --gold: #d49a2a;
  --night: #141b1e;
  --shadow: 0 18px 40px rgba(17, 19, 23, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 6vw;
  color: #fff;
  background: rgba(17, 19, 23, 0.54);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(16px);
}

.brand,
.nav-links,
.hero-actions,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 750;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.78rem;
}

.nav-links {
  gap: 26px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: #fff;
}

.hero {
  min-height: 84svh;
  display: flex;
  align-items: center;
  padding: 132px 6vw 76px;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(10, 12, 14, 0.88) 0%, rgba(10, 12, 14, 0.72) 38%, rgba(10, 12, 14, 0.24) 72%),
    linear-gradient(0deg, rgba(10, 12, 14, 0.56), rgba(10, 12, 14, 0.08)),
    url("hero-operations.png") center / cover no-repeat;
}

.hero-content {
  width: min(650px, 100%);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.systems-copy h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1;
}

.hero h1 {
  max-width: 9ch;
  font-size: 4.6rem;
  font-weight: 820;
}

.hero-copy {
  max-width: 610px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.2rem;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 750;
}

.button.primary {
  color: #151719;
  background: var(--gold);
}

.button.secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

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

.metric {
  min-height: 132px;
  padding: 28px 6vw 26px;
  background: var(--paper);
}

.metric strong {
  display: block;
  color: var(--teal);
  font-size: 2rem;
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.section,
.systems-band {
  padding: 88px 6vw;
}

.section-heading {
  max-width: 770px;
  margin-bottom: 34px;
}

.section-heading h2,
.systems-copy h2 {
  font-size: 2.6rem;
}

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

.capability {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.capability-index {
  display: inline-block;
  margin-bottom: 42px;
  color: var(--rust);
  font-weight: 800;
}

.capability h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.capability p,
.systems-copy p,
.timeline span {
  color: var(--muted);
}

.capability p,
.systems-copy p {
  margin: 0;
}

.systems-band {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: 42px;
  align-items: start;
  color: #fff;
  background: var(--night);
}

.systems-copy {
  max-width: 620px;
}

.systems-copy p {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.08rem;
}

.timeline {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.timeline div {
  min-height: 126px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: 24px;
  background: #1f292d;
}

.timeline strong {
  color: var(--gold);
  font-size: 1.35rem;
}

.timeline span {
  color: rgba(255, 255, 255, 0.72);
}

.contact-section {
  min-height: 360px;
  background: #fbfaf6;
}

.contact-link {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  font-size: 1.08rem;
  font-weight: 750;
}

.site-footer {
  justify-content: space-between;
  gap: 18px;
  padding: 28px 6vw;
  color: rgba(255, 255, 255, 0.74);
  background: #0f1214;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .site-header {
    position: absolute;
  }

  .hero {
    min-height: 78svh;
    padding-top: 118px;
    background-position: 58% center;
  }

  .hero h1 {
    font-size: 3.4rem;
  }

  .metrics,
  .capability-grid,
  .systems-band {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: 112px;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    padding: 16px 20px;
  }

  .brand {
    gap: 10px;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .section,
  .systems-band {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    min-height: 76svh;
    padding-bottom: 54px;
  }

  .hero h1 {
    font-size: 2.65rem;
  }

  .hero-copy {
    font-size: 1.04rem;
  }

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

  .button,
  .contact-link {
    width: 100%;
  }

  .metric {
    padding: 24px 20px;
  }

  .section,
  .systems-band {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .section-heading h2,
  .systems-copy h2 {
    font-size: 2rem;
    line-height: 1.06;
  }

  .capability {
    min-height: 228px;
    padding: 24px;
  }

  .timeline div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
  }
}