:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f8fbff;
  --surface-strong: #eef5ff;
  --ink: #061640;
  --muted: #49617e;
  --line: #d8e3f2;
  --blue: #0757f8;
  --blue-dark: #003fc2;
  --green: #45a33b;
  --shadow: 0 18px 50px rgba(5, 31, 78, 0.09);
  --max: 1140px;
  --header: 76px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

button,
input {
  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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header);
  padding: 0 clamp(20px, 6vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--blue);
}

.brand-mark svg,
.feature svg,
.button svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 42px);
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--ink);
}

.site-nav a {
  position: relative;
  padding: 28px 0 24px;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 14px;
  left: 0;
  height: 2px;
  background: var(--blue);
  border-radius: 99px;
  content: "";
  opacity: 0;
  transform: scaleX(0.45);
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  border-radius: 99px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.88fr) minmax(420px, 1.12fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: 560px;
  padding: clamp(42px, 6vw, 68px) clamp(20px, 6vw, 72px) clamp(38px, 5vw, 56px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 610px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(4rem, 8.8vw, 6.75rem);
  line-height: 0.94;
  font-weight: 850;
  letter-spacing: 0;
}

.hero p {
  max-width: 560px;
  margin: 22px 0 0;
  color: var(--ink);
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  line-height: 1.38;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  gap: 12px;
  border: 1px solid var(--blue);
  border-radius: 8px;
  font-weight: 800;
  line-height: 1;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button svg {
  width: 22px;
  height: 22px;
  stroke-width: 2.2;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 24px rgba(7, 87, 248, 0.2);
}

.button-primary:hover {
  background: var(--blue-dark);
}

.button-secondary {
  color: var(--blue);
  background: #fff;
}

.hero-visual {
  position: relative;
  min-height: 400px;
  overflow: hidden;
}

.map-grid {
  position: absolute;
  inset: 8% 0 2%;
  background-image: radial-gradient(circle, rgba(7, 87, 248, 0.16) 1.2px, transparent 1.4px);
  background-size: 12px 12px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 70%);
}

.network {
  position: relative;
  width: 100%;
  min-width: 560px;
  height: auto;
}

.network .world-band {
  fill: url("#dots");
  opacity: 0.55;
}

.network .orbit,
.network .line {
  fill: none;
  stroke: #87b4ff;
  stroke-width: 1.5;
  stroke-dasharray: 5 8;
}

.network .line {
  stroke-dasharray: none;
}

.node circle {
  fill: #fff;
  stroke: #75a7ff;
  stroke-width: 2;
}

.node path {
  fill: none;
  stroke: var(--blue);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.node-main circle {
  fill: rgba(255, 255, 255, 0.85);
  stroke: #8ab6ff;
  stroke-dasharray: 4 7;
}

.node-main path {
  stroke: var(--ink);
}

.node.green circle {
  stroke: #8bbf68;
}

.node.green path,
.pin.green {
  stroke: var(--green);
  fill: none;
}

.pin {
  fill: var(--blue);
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.feature {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 24px;
  min-height: 196px;
  padding: 44px clamp(24px, 4vw, 72px);
  border-right: 1px solid var(--line);
}

.feature:last-child {
  border-right: 0;
}

.feature svg {
  width: 66px;
  color: var(--blue);
  stroke-width: 2.6;
}

.feature:nth-child(2) svg {
  color: var(--green);
}

.feature h2,
.section-heading h2,
.contact-band h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.12;
  font-weight: 820;
}

.feature p,
.section-heading p,
.news-card p,
.contact-band p {
  margin: 12px 0 0;
  color: var(--muted);
}

.feature a,
.news-card a,
.section-heading a {
  display: inline-flex;
  margin-top: 14px;
  color: var(--blue);
  font-weight: 800;
}

.feature a::after,
.news-card a::after,
.section-heading a::after {
  content: "→";
  margin-left: 8px;
}

.section {
  padding: 44px clamp(20px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: var(--max);
  margin: 0 auto 28px;
  text-align: center;
}

.section-heading p {
  max-width: 650px;
  margin-right: auto;
  margin-left: auto;
}

.section-heading.compact {
  display: flex;
  align-items: end;
  justify-content: space-between;
  text-align: left;
}

.logo-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  max-width: var(--max);
  margin: 0 auto;
}

.logo-row span {
  display: grid;
  min-height: 72px;
  place-items: center;
  padding: 12px;
  color: #425677;
  font-size: 0.8rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 8px;
}

.news {
  background: linear-gradient(180deg, #fff 0%, var(--surface) 100%);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: var(--max);
  margin: 0 auto;
}

.news-card {
  min-height: 190px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(5, 31, 78, 0.04);
}

.news-card time {
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 800;
}

.news-card h3 {
  margin: 10px 0 0;
  font-size: 1.05rem;
  line-height: 1.26;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  align-items: center;
  gap: 32px;
  padding: 34px clamp(20px, 6vw, 72px);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.contact-band > * {
  max-width: 420px;
}

address {
  display: grid;
  gap: 3px;
  padding-left: 32px;
  color: var(--muted);
  font-style: normal;
  border-left: 1px solid var(--line);
}

address strong {
  color: var(--ink);
}

address a {
  color: var(--blue);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 6vw, 72px);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .site-header {
    min-height: 68px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    right: 16px;
    left: 16px;
    display: grid;
    gap: 0;
    padding: 8px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 12px;
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 44px;
  }

  .hero-visual {
    min-height: 330px;
  }

  .network {
    min-width: 560px;
    margin-left: -86px;
  }

  .feature-strip,
  .news-grid,
  .logo-row,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .feature {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature:last-child {
    border-bottom: 0;
  }

  .section-heading.compact {
    align-items: start;
  }

  address {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 620px) {
  .brand {
    font-size: 1.1rem;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 11.8vw, 3.25rem);
  }

  .hero p {
    font-size: 1.18rem;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 20px;
  }

  .section {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .contact-band {
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .site-footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}