:root {
  --bg: #070b10;
  --bg-2: #0d151c;
  --ink: #e8eef4;
  --muted: #8b9aab;
  --accent: #2dd4bf;
  --accent-2: #38bdf8;
  --line: rgba(232, 238, 244, 0.12);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Syne", "DM Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(45, 212, 191, 0.14), transparent 60%),
    radial-gradient(900px 500px at -10% 40%, rgba(56, 189, 248, 0.1), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg-2) 45%, #081018);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  backdrop-filter: blur(12px);
  background: rgba(7, 11, 16, 0.72);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.04em;
}
nav { display: flex; gap: 1.25rem; align-items: center; font-size: 0.92rem; }
nav a { opacity: 0.85; }
nav a:hover { opacity: 1; color: var(--accent); }
.cta-nav {
  border: 1px solid rgba(45, 212, 191, 0.45);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  color: var(--accent) !important;
}

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
  padding: 3rem 1.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--accent-2);
  margin: 0 0 1rem;
}
.wordmark {
  font-family: var(--display);
  font-size: clamp(3.2rem, 9vw, 5.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.95;
  background: linear-gradient(120deg, #f4fffd 10%, var(--accent) 55%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h1 { margin: 0; }
.lede {
  margin: 1.1rem 0 1.75rem;
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 28ch;
  line-height: 1.5;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.2rem;
  border-radius: 0.55rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: var(--accent);
  color: #042f2e;
}
.btn.ghost {
  border-color: var(--line);
  color: var(--ink);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero-visual {
  min-height: 320px;
  display: grid;
  place-items: center;
}
.orbit {
  width: min(360px, 80vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(45, 212, 191, 0.28);
  position: relative;
  animation: spin 28s linear infinite;
  box-shadow: inset 0 0 80px rgba(45, 212, 191, 0.08);
}
.orbit span {
  position: absolute;
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px;
  background: rgba(7, 11, 16, 0.85);
  animation: spin-rev 28s linear infinite;
}
.orbit span:nth-child(1) { top: 8%; left: 38%; }
.orbit span:nth-child(2) { bottom: 18%; left: 6%; }
.orbit span:nth-child(3) { bottom: 22%; right: 4%; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-rev { to { transform: rotate(-360deg); } }

.band {
  padding: 4.5rem 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.band.alt {
  max-width: none;
  background: rgba(255, 255, 255, 0.02);
  border-block: 1px solid var(--line);
}
.band.alt > * { max-width: 900px; margin-left: auto; margin-right: auto; }
.band h2 {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.5rem;
}
.sub { color: var(--muted); margin: 0 0 1.75rem; max-width: 48ch; }
.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.9rem;
}
.steps li {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: rgba(13, 21, 28, 0.65);
}
.cells {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}
.cells li {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  text-align: center;
  font-weight: 500;
}
.close { text-align: center; }
.close .sub { margin-left: auto; margin-right: auto; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 2rem; }
  .hero-visual { order: -1; min-height: 240px; }
  nav a:not(.cta-nav) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .orbit, .orbit span { animation: none; }
  .btn { transition: none; }
}