:root {
  color-scheme: dark;
  --ink: #f4f7ff;
  --muted: #9ba9c5;
  --line: rgba(255, 255, 255, 0.1);
  --panel: rgba(17, 25, 45, 0.76);
  --accent: #56e0c1;
  --accent-2: #6b8cff;
  --background: #070b14;
  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;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 76% 12%, rgba(76, 112, 255, 0.23), transparent 31rem),
    radial-gradient(circle at 20% 44%, rgba(35, 212, 178, 0.1), transparent 34rem),
    var(--background);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.3;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a {
  color: inherit;
}

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

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  font-size: 1.06rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-accent,
.eyebrow,
.number {
  color: var(--accent);
}

.release-pill {
  padding: 8px 12px;
  color: #c9d3e8;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
  min-height: 670px;
  padding-block: 80px;
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 25px;
  font-size: clamp(3rem, 7vw, 6.2rem);
  line-height: 0.96;
  letter-spacing: -0.067em;
}

.lede {
  max-width: 650px;
  margin-bottom: 34px;
  color: #b7c2d9;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.72;
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  font-size: 0.9rem;
  font-weight: 750;
  border-radius: 14px;
}

.primary-action {
  color: #071711;
  background: var(--accent);
}

.secondary-action {
  border: 1px solid var(--line);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
}

.release-note {
  margin: 16px 0 0;
  color: #7f8da8;
  font-size: 0.82rem;
  line-height: 1.55;
}

.signal-card {
  padding: clamp(28px, 5vw, 52px);
  overflow: hidden;
  border: 1px solid rgba(126, 153, 255, 0.22);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(29, 42, 72, 0.86), rgba(11, 17, 31, 0.88));
  box-shadow: 0 42px 100px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
}

.signal-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 290px);
  aspect-ratio: 1;
  margin: 0 auto 38px;
}

.signal-orbit::before,
.orbit {
  position: absolute;
  border: 1px solid rgba(86, 224, 193, 0.24);
  border-radius: 50%;
  content: "";
}

.signal-orbit::before {
  inset: 17%;
  background: rgba(86, 224, 193, 0.05);
  box-shadow: 0 0 70px rgba(86, 224, 193, 0.16);
}

.orbit-one {
  inset: 3%;
}

.orbit-two {
  inset: 31%;
}

.signal-orbit img {
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 12px 26px rgba(86, 224, 193, 0.25));
}

dl {
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 95px 1fr;
  gap: 18px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-size: 0.82rem;
}

dd {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: 120px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--line);
}

.principles article {
  min-height: 250px;
  padding: 32px;
  background: rgba(9, 14, 25, 0.94);
}

.number {
  display: block;
  margin-bottom: 42px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.principles h2,
.platforms h2 {
  margin-bottom: 15px;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  letter-spacing: -0.035em;
}

.principles p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.platforms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  padding: 40px 0 120px;
}

.platforms ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  margin: 0;
  padding: 0;
  list-style: none;
}

.platforms li {
  padding: 10px 14px;
  color: #c6d0e5;
  font-size: 0.84rem;
  font-weight: 650;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 42px;
  color: #74819a;
  font-size: 0.78rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 820px) {
  .hero,
  .platforms {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-block: 72px;
  }

  .signal-card {
    max-width: 560px;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .platforms ul {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .nav,
  main,
  footer {
    width: min(100% - 28px, 1180px);
  }

  .release-pill {
    font-size: 0.65rem;
  }

  h1 {
    font-size: clamp(2.8rem, 16vw, 4.2rem);
  }

  .actions > * {
    width: 100%;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}