:root {
  color-scheme: dark;
  --background: #061322;
  --background-soft: #0a1c31;
  --card: #102a48;
  --card-border: #1e426d;
  --text: #f7fbff;
  --muted: #9eb0c8;
  --blue: #079cff;
  --blue-bright: #35b7ff;
  --gold: #ffb51f;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 10%, rgba(0, 153, 255, .17), transparent 30rem),
    radial-gradient(circle at 8% 65%, rgba(255, 181, 31, .07), transparent 25rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a { color: var(--blue-bright); }

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

.site-header {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(158, 176, 200, .18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 750;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(53, 183, 255, .45);
  border-radius: 12px;
  background: linear-gradient(145deg, #12385e, #07192d);
  color: var(--blue-bright);
  font-size: 1.55rem;
  line-height: 1;
  box-shadow: 0 8px 24px rgba(0, 153, 255, .12);
}

nav, footer div { display: flex; gap: 24px; }

nav a,
footer a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
}

nav a:hover,
nav a:focus-visible,
footer a:hover,
footer a:focus-visible { color: var(--text); }

.hero {
  max-width: 840px;
  padding: clamp(76px, 12vw, 150px) 0 clamp(64px, 9vw, 110px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue-bright);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .18em;
}

h1 {
  margin: 0;
  font-size: clamp(3.2rem, 9vw, 7rem);
  line-height: .94;
  letter-spacing: -.065em;
}

h1 span { color: var(--blue); }

.intro {
  max-width: 660px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 750;
}

.button.primary {
  background: var(--blue);
  color: #00182b;
}

.button.secondary {
  border-color: var(--card-border);
  background: rgba(16, 42, 72, .55);
  color: var(--text);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-bottom: 100px;
}

.feature-card,
.content-card {
  border: 1px solid var(--card-border);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(16, 42, 72, .96), rgba(9, 28, 50, .95));
  box-shadow: 0 22px 70px rgba(0, 0, 0, .16);
}

.feature-card { padding: 28px; }

.feature-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 13px;
  background: rgba(0, 153, 255, .14);
  color: var(--blue-bright);
  font-size: 1.3rem;
}

h2, h3 { line-height: 1.22; }

.feature-card h2 {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

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

.page-heading {
  max-width: 790px;
  padding: 72px 0 32px;
}

.page-heading h1 {
  font-size: clamp(2.7rem, 6vw, 5rem);
  line-height: 1;
}

.page-heading p:last-child {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.15rem;
}

.content-card {
  max-width: 850px;
  padding: clamp(24px, 5vw, 54px);
  margin-bottom: 90px;
}

.content-card h2 {
  margin: 2.2em 0 .55em;
  font-size: 1.45rem;
}

.content-card h2:first-child { margin-top: 0; }

.content-card h3 {
  margin: 1.8em 0 .45em;
  font-size: 1.12rem;
}

.content-card p,
.content-card li { color: #c6d2e2; }

.content-card ul { padding-left: 1.25rem; }

.contact-box {
  margin-top: 34px;
  padding: 22px;
  border: 1px solid rgba(53, 183, 255, .28);
  border-radius: 16px;
  background: rgba(0, 153, 255, .08);
}

.contact-box p { margin: 0; }

footer {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(158, 176, 200, .18);
  color: var(--muted);
  font-size: .92rem;
}

@media (max-width: 760px) {
  .site-header, main, footer { width: min(calc(100% - 28px), var(--max)); }
  .site-header { min-height: 72px; }
  nav { gap: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; padding: 28px 0; }
}

@media (prefers-reduced-motion: no-preference) {
  .button, nav a, footer a { transition: color .2s ease, background-color .2s ease, transform .2s ease; }
  .button:hover { transform: translateY(-2px); }
}