@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0a0d0e;
  --panel: #111617;
  --panel2: #151c1d;
  --text: #f3f5f1;
  --muted: #98a3a0;
  --line: #293130;
  --accent: #a7ff54;
  --accent-soft: rgba(167, 255, 84, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 75% 8%, rgba(167,255,84,.08), transparent 25rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

a { color: inherit; text-decoration: none; }

.site-header {
  max-width: 1200px;
  margin: auto;
  padding: 28px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font: 600 13px/1 DM Mono, monospace;
  letter-spacing: .12em;
}
.brand-mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border: 1px solid var(--accent);
  color: var(--accent);
}

nav { display: flex; gap: 28px; }
nav a {
  color: var(--muted);
  font: 500 12px/1 DM Mono, monospace;
  text-transform: uppercase;
  letter-spacing: .08em;
}
nav a:hover { color: var(--text); }

.hero {
  max-width: 1200px;
  min-height: 670px;
  margin: auto;
  padding: 115px 32px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow, .section-label {
  color: var(--accent);
  font: 500 12px/1.4 DM Mono, monospace;
  letter-spacing: .16em;
}
.hero h1 {
  margin: 24px 0 28px;
  max-width: 920px;
  font-size: clamp(64px, 10vw, 130px);
  line-height: .87;
  letter-spacing: -.065em;
}
.hero h1 span { color: var(--accent); }
.lead {
  max-width: 720px;
  margin: 0;
  color: #c5cecb;
  font-size: clamp(18px, 2.1vw, 25px);
  line-height: 1.5;
}
.actions { display: flex; gap: 12px; margin-top: 42px; flex-wrap: wrap; }
.button {
  padding: 14px 18px;
  border: 1px solid var(--line);
  font: 500 12px/1 DM Mono, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.primary { background: var(--accent); color: #0b0e0c; border-color: var(--accent); }
.secondary:hover { border-color: #65706e; }

.signal-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 17px max(32px, calc((100vw - 1136px)/2));
  display: flex;
  gap: 18px;
  align-items: center;
  overflow: hidden;
  color: var(--muted);
  white-space: nowrap;
  font: 500 10px/1 DM Mono, monospace;
  letter-spacing: .12em;
}
.signal-strip i { width: 4px; height: 4px; background: var(--accent); border-radius: 50%; }

.section {
  max-width: 1200px;
  margin: auto;
  padding: 130px 32px;
}
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 28px;
}
h2 {
  margin: 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: .98;
  letter-spacing: -.045em;
}
.split p, .status-panel p {
  margin: 0 0 20px;
  color: #b4bfbc;
  font-size: 18px;
  line-height: 1.7;
}

.system-map {
  margin-top: 85px;
  display: grid;
  grid-template-columns: 1fr auto 1.1fr auto 1fr;
  gap: 18px;
  align-items: stretch;
}
.node {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--panel), rgba(17,22,23,.65));
  padding: 26px;
  min-height: 170px;
  display: flex;
  flex-direction: column;
}
.node small {
  color: var(--muted);
  font: 500 10px/1 DM Mono, monospace;
  letter-spacing: .12em;
}
.node strong { margin-top: 40px; font-size: 20px; }
.node span { margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.node.core {
  border-color: rgba(167,255,84,.55);
  background: linear-gradient(145deg, var(--accent-soft), var(--panel));
}
.node.core small { color: var(--accent); }
.flow { display: grid; place-items: center; color: var(--accent); font-family: DM Mono, monospace; }

.cards { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cards h2 { margin-top: 28px; max-width: 850px; }
.card-grid {
  margin-top: 70px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.card-grid article {
  min-height: 280px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.card-num { color: var(--accent); font: 500 11px DM Mono, monospace; }
.card-grid h3 { margin: 88px 0 12px; font-size: 21px; }
.card-grid p { margin: 0; color: var(--muted); line-height: 1.55; font-size: 14px; }

.status-panel {
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 44px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 70px;
}
.status-panel h2 { margin-top: 24px; font-size: clamp(36px, 5vw, 62px); }
.status-pill {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--accent);
  font: 500 11px DM Mono, monospace;
}
.status-pill span {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(167,255,84,.7);
}

.closing {
  max-width: 1200px;
  min-height: 520px;
  margin: auto;
  padding: 120px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.closing h2 { margin-top: 25px; }
.closing p { color: var(--muted); margin-top: 30px; }

footer {
  max-width: 1200px;
  margin: auto;
  padding: 26px 32px 40px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #6f7a77;
  font: 400 10px/1.4 DM Mono, monospace;
  text-transform: uppercase;
  letter-spacing: .08em;
}

@media (max-width: 850px) {
  nav { display: none; }
  .hero { min-height: 590px; padding-top: 80px; }
  .hero h1 { font-size: clamp(58px, 18vw, 90px); }
  .split, .status-panel { grid-template-columns: 1fr; gap: 36px; }
  .system-map { grid-template-columns: 1fr; }
  .flow { transform: rotate(90deg); height: 24px; }
  .card-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .site-header, .hero, .section, .closing, footer { padding-left: 20px; padding-right: 20px; }
  .hero h1 { font-size: 55px; }
  .card-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}