:root {
  --bg: #050816;
  --panel: rgba(10, 16, 36, .78);
  --line: rgba(88, 220, 255, .18);
  --text: #f8fbff;
  --muted: #94a3b8;
  --cyan: #38e8ff;
  --blue: #3478ff;
  --violet: #a65cff;
  --green: #5dffb0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 18% 8%, rgba(56,232,255,.20), transparent 34%),
    radial-gradient(circle at 82% 12%, rgba(166,92,255,.22), transparent 34%),
    linear-gradient(180deg, #050816, #050712 68%, #02030a);
}
.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .24;
  background-image:
    linear-gradient(rgba(88,220,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88,220,255,.08) 1px, transparent 1px);
  background-size: 72px 72px;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px min(5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(5,8,22,.84);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand span {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(56,232,255,.38);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(56,232,255,.18), rgba(166,92,255,.22));
  color: var(--cyan);
  font-weight: 900;
}
.nav {
  display: flex;
  gap: 24px;
  color: #dbeafe;
  font-size: 14px;
}
.menu {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(56,232,255,.28);
  border-radius: 14px;
  color: var(--text);
  background: rgba(10,16,36,.7);
}
main {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
}
.hero {
  min-height: 76vh;
  display: grid;
  grid-template-columns: 1fr .9fr;
  align-items: center;
  gap: 42px;
  padding: 72px 0 44px;
}
.eyebrow {
  display: inline-flex;
  margin-bottom: 22px;
  border: 1px solid rgba(56,232,255,.30);
  border-radius: 999px;
  padding: 9px 14px;
  color: var(--cyan);
  background: rgba(56,232,255,.06);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 12px;
  font-weight: 900;
}
h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(48px, 7vw, 94px);
  line-height: .96;
  letter-spacing: -.06em;
}
h2 { font-size: clamp(30px, 4vw, 54px); margin: 0 0 14px; }
p { color: var(--muted); line-height: 1.8; }
.hero p { font-size: 18px; }
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.btn {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(56,232,255,.28);
  border-radius: 16px;
  padding: 14px 22px;
  font-weight: 900;
  background: rgba(10,16,36,.68);
}
.btn.primary {
  border-color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
  box-shadow: 0 0 34px rgba(56,232,255,.22);
}
.terminal-card,
.answer,
.cards article,
.panel {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  box-shadow: inset 0 0 44px rgba(56,232,255,.04);
}
.terminal-card {
  min-height: 390px;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 34px;
}
.terminal-card small {
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: .16em;
}
code {
  display: block;
  border: 1px solid rgba(56,232,255,.18);
  border-radius: 18px;
  padding: 18px;
  color: var(--cyan);
  background: #030712;
  overflow-wrap: anywhere;
}
.terminal-card span { color: var(--muted); }
.answer {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 28px;
  margin: 30px 0;
  padding: 34px;
}
.answer ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.answer li {
  border: 1px solid rgba(56,232,255,.14);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255,255,255,.035);
}
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 30px 0;
}
.cards article {
  min-height: 252px;
  padding: 24px;
}
.cards span { color: var(--cyan); font-weight: 900; }
.cards h3 { margin: 28px 0 12px; font-size: 24px; }
.panel {
  margin: 30px 0;
  padding: 34px;
}
.route-table {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 22px;
}
.route-table div {
  border: 1px solid rgba(56,232,255,.14);
  border-radius: 18px;
  padding: 18px;
  background: rgba(255,255,255,.035);
}
.route-table span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}
.footer {
  display: flex;
  justify-content: space-between;
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 50px;
  color: var(--muted);
}
@media (max-width: 980px) {
  .nav { display: none; }
  .nav.is-open {
    position: absolute;
    top: calc(100% + 1px);
    left: 16px;
    right: 16px;
    display: grid;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(5,8,22,.98);
    overflow: hidden;
  }
  .nav.is-open a {
    padding: 15px 18px;
    border-bottom: 1px solid rgba(56,232,255,.12);
  }
  .menu { display: block; }
  .hero,
  .answer,
  .cards,
  .route-table { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  main,
  .footer { width: min(100% - 24px, 1220px); }
  .topbar { padding: 14px 12px; }
  h1 { font-size: clamp(42px, 14vw, 62px); }
}