:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: #0d1b2e;
  --panel-2: #12243b;
  --text: #f4f8fc;
  --muted: #9fb2c7;
  --accent: #44d7b6;
  --accent-2: #5aa7ff;
  --line: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.hero {
  min-height: 76vh;
  padding: 0 6vw 5rem;
  background:
    radial-gradient(circle at 82% 15%, rgba(68, 215, 182, 0.18), transparent 32%),
    radial-gradient(circle at 15% 70%, rgba(90, 167, 255, 0.16), transparent 34%),
    linear-gradient(145deg, #07111f, #0a1727 60%, #07111f);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.nav .brand {
  margin-right: auto;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--text);
}

.hero-content {
  width: min(900px, 100%);
  padding-top: clamp(5rem, 10vw, 9rem);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 750px;
  margin: 2rem 0 2.4rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.identity {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.identity span {
  padding: 0.62rem 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
}

.identity strong {
  margin-right: 0.35rem;
  color: var(--text);
}

main {
  width: min(1180px, calc(100% - 12vw));
  margin: 0 auto;
}

.overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: -2.5rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.26);
}

.overview article {
  padding: 1.5rem;
}

.overview article + article {
  border-left: 1px solid var(--line);
}

.metric {
  display: block;
  color: var(--accent-2);
  font-size: 1.1rem;
  font-weight: 800;
}

.overview p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.section {
  padding: clamp(5rem, 10vw, 8rem) 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2.5rem;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.section-heading > p:last-child {
  color: var(--muted);
  font-size: 1.08rem;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}

.flow li {
  min-height: 190px;
  padding: 1.4rem;
}

.flow li + li {
  border-left: 1px solid var(--line);
}

.flow li > span {
  display: block;
  margin-bottom: 3.2rem;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
}

.flow strong,
.flow small {
  display: block;
}

.flow small {
  margin-top: 0.35rem;
  color: var(--muted);
  line-height: 1.35;
}

.security {
  border-top: 1px solid var(--line);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.cards article {
  padding: 1.8rem;
  background: linear-gradient(145deg, var(--panel), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: 16px;
}

.cards h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

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

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 6vw;
  color: var(--muted);
  background: #050c16;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}

footer p {
  margin: 0;
}

code {
  color: var(--accent);
}

@media (max-width: 850px) {
  .nav a {
    display: none;
  }

  .overview,
  .flow,
  .cards {
    grid-template-columns: 1fr;
  }

  .overview article + article,
  .flow li + li {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .flow li {
    min-height: auto;
  }

  .flow li > span {
    margin-bottom: 1rem;
  }

  footer {
    flex-direction: column;
  }
}