:root {
  --bg: #f5f6f7;
  --surface: #ffffff;
  --surface-soft: #eef1f3;
  --text: #17202a;
  --muted: #5f6b76;
  --line: #d9dee3;
  --accent: #234f73;
  --accent-dark: #17354f;
  --dark: #111a22;
  --dark-soft: #1b2731;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(23, 32, 42, 0.10);
  --radius: 22px;
  --shell: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

button, input, textarea, select { font: inherit; }

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

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  background: var(--white);
  color: var(--text);
  padding: 10px 14px;
  z-index: 1000;
  border-radius: 8px;
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

.shell { width: var(--shell); margin-inline: auto; }

.section {
  position: relative;
  padding: 110px 0;
}

.section-light { background: var(--surface); }

.section-dark {
  background:
    radial-gradient(circle at 15% 15%, rgba(67, 120, 162, .18), transparent 33%),
    linear-gradient(145deg, var(--dark), var(--dark-soft));
  color: var(--white);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 246, 247, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(217, 222, 227, .85);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--text);
  border-radius: 50%;
  font-size: .78rem;
  letter-spacing: .08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  text-decoration: none;
  font-size: .95rem;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus { color: var(--text); }

.site-nav .nav-cta {
  color: var(--white);
  background: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.menu-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
}

.hero {
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-art {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0 72%, rgba(35, 79, 115, .05) 72% 72.15%, transparent 72.15%),
    linear-gradient(0deg, transparent 0 70%, rgba(35, 79, 115, .05) 70% 70.15%, transparent 70.15%),
    url("assets/technology-grid.svg") center right / min(58vw, 880px) auto no-repeat;
  opacity: .92;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.45fr .75fr;
  gap: 70px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-section h2 {
  margin: 0;
  letter-spacing: -.045em;
  line-height: 1.05;
  font-weight: 660;
}

.hero h1 {
  max-width: 850px;
  font-size: clamp(3.2rem, 7vw, 6.3rem);
}

.hero-lead {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }

.button-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(35, 79, 115, .22);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.66);
}

.executive-card {
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.portrait-placeholder {
  min-height: 270px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 65% 25%, rgba(255,255,255,.28), transparent 28%),
    linear-gradient(145deg, var(--accent-dark), #6e8799);
  color: rgba(255,255,255,.95);
}
.portrait-placeholder span {
  font-size: 4rem;
  font-weight: 300;
  letter-spacing: .12em;
}

.executive-card-body { padding: 28px; }
.executive-card h2 { margin: 0; font-size: 1.6rem; }
.executive-card p { margin: 8px 0 24px; color: var(--muted); }

.facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 0;
}
.facts div { border-top: 1px solid var(--line); padding-top: 14px; }
.facts dt { font-size: 1.25rem; font-weight: 800; color: var(--accent); }
.facts dd { margin: 3px 0 0; color: var(--muted); font-size: .9rem; }

.split-layout {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 90px;
  align-items: start;
}

.section-heading h2,
.contact-section h2 {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
}

.prose { font-size: 1.07rem; color: var(--muted); }
.prose p { margin: 0 0 22px; }
.prose .lead-paragraph { color: var(--text); font-size: 1.25rem; }

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 70px;
  background: var(--line);
  border: 1px solid var(--line);
}
.capability-grid article {
  min-height: 250px;
  padding: 30px;
  background: var(--surface);
}
.capability-index {
  display: inline-block;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
}
.capability-grid h3 { margin: 42px 0 12px; font-size: 1.25rem; }
.capability-grid p { margin: 0; color: var(--muted); }

.heading-row {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 58px;
}
.heading-note { margin: 0; color: var(--muted); font-size: 1.06rem; }

.track-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.track-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  padding: 30px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.48);
  border-radius: 18px;
}
.track-number {
  font-size: .78rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .12em;
}
.track-label {
  margin: 0 0 8px;
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
}
.track-card h3 { margin: 0 0 12px; font-size: 1.35rem; }
.track-card p:last-child { margin: 0; color: var(--muted); }

.perspective-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 90px;
}
.section-dark .eyebrow { color: #9fc4df; }
.section-dark .section-heading p:last-child {
  color: rgba(255,255,255,.7);
  font-size: 1.08rem;
  max-width: 650px;
}

.principles article {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 22px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,.16);
}
.principles article:last-child { border-bottom: 1px solid rgba(255,255,255,.16); }
.principles span { color: #9fc4df; font-weight: 800; }
.principles h3 { margin: 0 0 8px; font-size: 1.3rem; }
.principles p { margin: 0; color: rgba(255,255,255,.68); }

.focus-list {
  border-top: 1px solid var(--line);
}
.focus-list > div {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 40px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.focus-list h3 { margin: 0; font-size: 1.25rem; }
.focus-list p { margin: 0; color: var(--muted); }

.contact-section { background: #e9eef2; }
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 80px;
  align-items: start;
}
.contact-panel {
  background: var(--surface);
  padding: 34px;
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.contact-panel p { margin-top: 0; color: var(--muted); }
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 28px 0;
}
.contact-links a {
  width: fit-content;
  color: var(--accent);
  font-weight: 800;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.contact-note { margin-bottom: 0 !important; font-size: .92rem; }

.site-footer {
  padding: 24px 0;
  background: var(--dark);
  color: rgba(255,255,255,.7);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}
.footer-row p { margin: 0; }
.footer-row a { text-decoration: none; }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.portrait-photo img {
  width: 100%;
  height: 100%;
  min-height: 270px;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .button { transition: none; }
}

@media (max-width: 980px) {
  .hero-grid,
  .split-layout,
  .perspective-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero { min-height: auto; }
  .executive-card { max-width: 620px; }

  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .heading-row { grid-template-columns: 1fr; gap: 24px; }
  .track-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 28px, 1180px); }
  .section { padding: 78px 0; }
  .hero { padding-top: 58px; }

  .menu-toggle { display: block; }

  .site-nav {
    position: absolute;
    inset: 78px 14px auto 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: 16px;
    padding: 12px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 14px; }
  .site-nav .nav-cta { border-radius: 10px; text-align: center; margin-top: 6px; }

  .hero h1 { font-size: clamp(2.65rem, 14vw, 4.5rem); }
  .hero-art { opacity: .55; }

  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid article { min-height: auto; }
  .capability-grid h3 { margin-top: 24px; }

  .focus-list > div { grid-template-columns: 1fr; gap: 8px; }

  .footer-row { flex-direction: column; }
}

@media (max-width: 520px) {
  .brand-text { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .facts { grid-template-columns: 1fr; }
  .track-card { grid-template-columns: 1fr; }
  .principles article { grid-template-columns: 42px 1fr; }
}