:root {
  color-scheme: light;
  --ink: #101a2b;
  --muted: #5d6879;
  --line: #dce4ee;
  --paper: #ffffff;
  --wash: #f4f8fc;
  --blue: #0b58cf;
  --blue-deep: #073884;
  --green: #16833a;
  --shadow: 0 24px 70px rgba(20, 50, 88, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, Arial, Helvetica, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-160%);
}

.skip-link:focus { transform: none; }

.site-header {
  width: min(1180px, calc(100% - 40px));
  min-height: 86px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  text-decoration: none;
}

.brand-name {
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.045em;
}

.brand-name span { color: var(--blue-deep); }
.brand-name { color: var(--green); }

.brand-note {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.header-link,
.text-link {
  color: var(--blue-deep);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

main,
.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  align-items: center;
  gap: 72px;
  padding: 86px 0 92px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 800px;
  margin-bottom: 28px;
  font-size: clamp(48px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.lead {
  max-width: 760px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.48;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 52px;
  padding: 13px 21px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--blue-deep);
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible { transform: translateY(-2px); }

.button-primary {
  background: var(--blue-deep);
  color: #fff;
  box-shadow: 0 12px 30px rgba(7, 56, 132, 0.2);
}

.button-secondary { background: #fff; }

.hero-mark {
  position: relative;
  width: min(34vw, 390px);
  aspect-ratio: 1;
  justify-self: center;
  border: 1px solid #b9d0ed;
  border-radius: 50%;
  background: radial-gradient(circle at 36% 28%, #fff 0 15%, #d9efff 40%, #7bb6f1 70%, #164c9d 100%);
  box-shadow: var(--shadow);
}

.hero-mark::before,
.hero-mark::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.78);
}

.hero-mark::before { inset: 10%; }
.hero-mark::after { inset: 22%; }

.hero-mark-core {
  position: absolute;
  inset: 34%;
  z-index: 2;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  color: var(--blue-deep);
  font-size: clamp(28px, 5vw, 54px);
  font-weight: 900;
  letter-spacing: -0.06em;
}

.hero-mark-orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 118%;
  height: 38%;
  border: 2px solid rgba(11, 88, 207, 0.4);
  border-radius: 50%;
}

.hero-mark-orbit-one { transform: translate(-50%, -50%) rotate(24deg); }
.hero-mark-orbit-two { transform: translate(-50%, -50%) rotate(-28deg); }

.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  column-gap: 64px;
  align-items: end;
  margin-bottom: 46px;
}

.section-heading .eyebrow { grid-column: 1 / -1; }

h2 {
  margin-bottom: 0;
  font-size: clamp(35px, 4.6vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.section-heading > p:last-child,
.principles-copy,
.platform p {
  color: var(--muted);
  font-size: 18px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  min-height: 280px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--wash);
}

.feature-number {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.feature-card h3 {
  margin: 58px 0 14px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.principles,
.platform {
  margin: 18px 0 96px;
  padding: clamp(34px, 6vw, 72px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  border-radius: 28px;
}

.principles {
  background: var(--blue-deep);
  color: #fff;
}

.principles .eyebrow { color: #9dc9ff; }
.principles-copy { color: rgba(255, 255, 255, 0.82); }
.principles-copy p:last-child { margin-bottom: 0; }

.platform {
  align-items: center;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}

.platform img {
  width: min(100%, 430px);
  height: auto;
}

.platform h2 { margin-bottom: 20px; }

.site-footer {
  padding: 38px 0 44px;
  display: grid;
  grid-template-columns: 1.3fr 1fr auto;
  gap: 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer strong { color: var(--ink); font-size: 18px; }
.site-footer p { max-width: 420px; margin: 7px 0 0; }

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 7px;
}

.footer-owner { text-align: right; }

@media (max-width: 820px) {
  .brand-note { display: none; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 58px; padding: 64px 0 76px; }
  .hero-mark { width: min(76vw, 360px); }
  .section-heading,
  .principles,
  .platform { grid-template-columns: 1fr; gap: 28px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 230px; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-owner { text-align: left; }
}

@media (max-width: 520px) {
  .site-header,
  main,
  .site-footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 72px; }
  .header-link { font-size: 14px; }
  h1 { font-size: clamp(43px, 14vw, 64px); }
  .lead { font-size: 18px; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .section { padding: 72px 0; }
  .feature-card { padding: 24px; }
  .principles,
  .platform { margin-bottom: 72px; padding: 28px 22px; border-radius: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}