:root {
  --ink: #0b111a;
  --navy: #07111f;
  --blue: #087dea;
  --blue-dark: #0759c4;
  --ice: #edf5fb;
  --paper: #f7f9fb;
  --muted: #687485;
  --line: #dce3ea;
  --white: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--white);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { display: block; }
h1, h2, h3, p { margin-top: 0; }

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(220, 227, 234, .9);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  height: 88px;
  padding: 0 clamp(24px, 5.6vw, 90px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand { display: block; width: 142px; }
.brand img { display: block; height: auto; width: 100%; }
nav { display: flex; gap: clamp(24px, 3.2vw, 48px); }
nav a {
  color: #374252;
  font-size: 13px;
  font-weight: 700;
  transition: color 180ms ease;
}
nav a:hover { color: var(--blue); }
.header-tools { align-items: center; display: flex; gap: 18px; justify-self: end; }
.language {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: flex;
  padding: 3px;
}
.language button {
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: #7b8593;
  cursor: pointer;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
  padding: 7px 9px;
}
.language button.active { background: var(--navy); color: var(--white); }
.portal {
  align-items: center;
  display: flex;
  font-size: 12px;
  font-weight: 800;
  gap: 7px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.lock { color: var(--blue); font-size: 18px; transform: rotate(-35deg); }

.hero {
  background:
    radial-gradient(circle at 76% 47%, rgba(0, 133, 255, .11), transparent 23%),
    linear-gradient(112deg, var(--white) 0%, var(--paper) 58%, #edf3f8 100%);
  display: grid;
  grid-template-columns: minmax(0, .93fr) minmax(480px, 1.07fr);
  min-height: calc(100vh - 88px);
  overflow: hidden;
  padding: clamp(70px, 9vh, 118px) clamp(24px, 6.8vw, 108px);
  position: relative;
}
.hero::before {
  background: linear-gradient(90deg, var(--blue), #40bfff);
  content: "";
  height: 3px;
  left: 0;
  position: absolute;
  top: 0;
  width: 24%;
}
.hero-copy { align-self: center; max-width: 760px; position: relative; z-index: 5; }
.eyebrow, .section-label {
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.eyebrow { align-items: center; display: flex; gap: 10px; margin-bottom: 28px; }
.eyebrow span {
  background: var(--blue);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(8, 125, 234, .12);
  height: 7px;
  width: 7px;
}
h1 {
  font-size: clamp(52px, 5.8vw, 88px);
  letter-spacing: -.06em;
  line-height: .98;
  margin-bottom: 30px;
}
h1 em { color: var(--blue); font-style: normal; }
.lead {
  color: var(--muted);
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 650px;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  align-items: center;
  border-radius: 3px;
  display: inline-flex;
  font-size: 13px;
  font-weight: 800;
  gap: 13px;
  justify-content: center;
  min-height: 54px;
  padding: 0 23px;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.button svg, .mail-link svg {
  fill: none;
  height: 18px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
  width: 18px;
}
.button:hover { transform: translateY(-2px); }
.primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  box-shadow: 0 14px 34px rgba(8, 125, 234, .2);
  color: var(--white);
}
.secondary { background: var(--white); border: 1px solid var(--line); }

.hero-visual {
  align-self: center;
  aspect-ratio: 1.15;
  justify-self: end;
  max-width: 690px;
  position: relative;
  width: 100%;
}
.hero-visual::before {
  background-image:
    linear-gradient(rgba(8, 125, 234, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 125, 234, .08) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  inset: 0;
  mask-image: radial-gradient(circle, black 15%, transparent 67%);
  position: absolute;
}
.mesh {
  border: 1px solid rgba(8, 125, 234, .18);
  border-radius: 50%;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
}
.mesh-a { height: 56%; width: 49%; }
.mesh-b { border-style: dashed; height: 86%; width: 75%; }
.pulse {
  background: rgba(8, 125, 234, .04);
  border: 1px solid rgba(8, 125, 234, .11);
  border-radius: 50%;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
}
.pulse-one { height: 38%; width: 33%; }
.pulse-two { height: 70%; width: 61%; }
.center-node {
  align-items: center;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(205, 219, 232, .95);
  border-radius: 50%;
  box-shadow: 0 30px 70px rgba(26, 62, 99, .18), inset 0 0 0 10px rgba(242, 247, 251, .9);
  display: flex;
  height: 210px;
  justify-content: center;
  left: 50%;
  overflow: hidden;
  padding: 42px;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 210px;
  z-index: 3;
}
.center-node img { height: auto; width: 100%; }
.data-chip {
  align-items: center;
  background: rgba(255,255,255,.94);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 12px 34px rgba(31, 57, 82, .1);
  color: #445065;
  display: flex;
  font-size: 10px;
  font-weight: 900;
  gap: 8px;
  letter-spacing: .12em;
  padding: 10px 13px;
  position: absolute;
  z-index: 4;
}
.data-chip span { background: #23d18b; border-radius: 50%; height: 6px; width: 6px; }
.chip-a { left: 12%; top: 24%; }
.chip-b { right: 8%; top: 29%; }
.chip-c { bottom: 18%; left: 19%; }
.signal-card {
  background: var(--navy);
  bottom: 11%;
  color: var(--white);
  min-width: 220px;
  padding: 17px 20px;
  position: absolute;
  right: 5%;
  z-index: 5;
}
.signal-card::before {
  background: var(--blue);
  content: "";
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 3px;
}
.signal-card small, .signal-card strong { display: block; }
.signal-card small { color: #84bff6; font-size: 9px; letter-spacing: .16em; margin-bottom: 5px; text-transform: uppercase; }
.signal-card strong { font-size: 13px; }
.scroll-mark {
  align-items: center;
  bottom: 28px;
  color: #8d97a5;
  display: flex;
  font-size: 8px;
  font-weight: 800;
  gap: 8px;
  left: clamp(24px, 6.8vw, 108px);
  letter-spacing: .2em;
  position: absolute;
}
.scroll-mark span { background: var(--blue); height: 1px; width: 34px; }

.expertise { padding: 120px clamp(24px, 6.8vw, 108px) 130px; }
.section-intro { display: grid; grid-template-columns: .65fr 1.25fr 1fr; gap: 50px; margin-bottom: 68px; }
.section-intro h2, .approach h2, .contact h2 {
  font-size: clamp(36px, 3.7vw, 58px);
  letter-spacing: -.045em;
  line-height: 1.05;
  margin-bottom: 0;
}
.section-intro > p:last-child {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  max-width: 500px;
}
.cards { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); }
.cards article { min-height: 330px; padding: 42px 38px; position: relative; }
.cards article + article { border-left: 1px solid var(--line); }
.card-icon {
  align-items: center;
  background: var(--ice);
  color: var(--blue);
  display: flex;
  height: 54px;
  justify-content: center;
  margin-bottom: 50px;
  width: 54px;
}
.card-icon svg { fill: none; height: 30px; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.5; width: 30px; }
.card-number { color: #a0aab6; font-size: 10px; font-weight: 800; position: absolute; right: 30px; top: 30px; }
.cards h3 { font-size: 22px; margin-bottom: 15px; }
.cards p { color: var(--muted); line-height: 1.7; margin-bottom: 0; }

.approach {
  align-items: end;
  background:
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
    var(--navy);
  background-size: 80px 80px;
  color: var(--white);
  display: grid;
  gap: 100px;
  grid-template-columns: 1fr 1fr;
  padding: 115px clamp(24px, 6.8vw, 108px);
}
.section-label.light { color: #65b8ff; }
.approach-copy > p:last-child { color: #a8b5c7; font-size: 16px; line-height: 1.8; margin: 28px 0 0; max-width: 650px; }
.approach ol { list-style: none; margin: 0; padding: 0; }
.approach li { align-items: center; border-top: 1px solid #263446; display: grid; grid-template-columns: 70px 1fr; min-height: 82px; }
.approach li:last-child { border-bottom: 1px solid #263446; }
.approach li span { color: var(--blue); font-size: 11px; font-weight: 800; }
.approach li strong { font-size: 20px; }

.contact { padding: 120px clamp(24px, 6.8vw, 108px) 130px; }
.contact-grid { display: grid; gap: 80px; grid-template-columns: 1.15fr .85fr; margin-top: 34px; }
.contact-grid > div > p { color: var(--muted); font-size: 17px; line-height: 1.75; max-width: 580px; }
.mail-link {
  align-items: center;
  border-bottom: 1px solid var(--ink);
  display: flex;
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 800;
  justify-content: space-between;
  margin-top: 40px;
  padding-bottom: 14px;
  transition: color 180ms ease;
}
.mail-link:hover { color: var(--blue); }
.phone-link {
  color: var(--muted);
  display: inline-block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  margin-top: 19px;
}
.phone-link:hover { color: var(--blue); }

footer {
  align-items: center;
  background: #f2f5f7;
  border-top: 1px solid var(--line);
  color: #778290;
  display: grid;
  font-size: 10px;
  gap: 26px;
  grid-template-columns: 1fr auto auto auto auto;
  letter-spacing: .04em;
  padding: 34px clamp(24px, 6.8vw, 108px);
}
footer img { width: 108px; }
footer p { margin: 0; }
footer a { color: var(--ink); font-weight: 800; text-transform: uppercase; }
.footer-phone { letter-spacing: .05em; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; }
  nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-bottom: 70px; }
  .hero-copy { max-width: 700px; }
  .hero-visual { margin: 25px auto 0; max-width: 600px; }
  .section-intro { grid-template-columns: 1fr; gap: 20px; }
  .section-intro > p:last-child { max-width: 700px; }
  .approach { gap: 60px; grid-template-columns: 1fr; }
  footer { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .site-header { height: 74px; padding: 0 18px; }
  .brand { width: 112px; }
  .header-tools { gap: 10px; }
  .portal { font-size: 0; }
  .portal .lock { font-size: 18px; }
  .language button { padding: 6px 7px; }
  .hero { min-height: auto; padding: 70px 20px 62px; }
  h1 { font-size: clamp(43px, 13vw, 62px); }
  .hero-visual { margin-top: 45px; }
  .center-node { height: 148px; padding: 30px; width: 148px; }
  .signal-card { bottom: 5%; min-width: 190px; right: 0; }
  .scroll-mark { display: none; }
  .expertise, .contact { padding: 85px 20px; }
  .cards { grid-template-columns: 1fr; }
  .cards article { min-height: 285px; padding: 34px 25px; }
  .cards article + article { border-left: 0; border-top: 1px solid var(--line); }
  .approach { padding: 85px 20px; }
  .contact-grid { gap: 38px; grid-template-columns: 1fr; }
  footer { align-items: start; grid-template-columns: 1fr; padding: 32px 20px; }
}