:root {
  color-scheme: dark;
  --bg: #07110f;
  --panel: #0c1916;
  --line: rgba(209, 255, 232, 0.13);
  --text: #ecfff6;
  --muted: #9eb8ac;
  --accent: #69f0b5;
  --accent-2: #b7ff4a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 8%, rgba(105, 240, 181, .13), transparent 30rem),
    linear-gradient(180deg, #081411 0%, var(--bg) 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
.site-header, main, footer { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.site-header {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; letter-spacing: .08em; font-size: 14px; }
.brand strong { color: var(--accent); }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: #07110f;
  background: var(--accent);
  font-weight: 900;
}
nav { display: flex; gap: 28px; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--text); }

.hero {
  min-height: 620px;
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  gap: 64px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.eyebrow { margin: 0 0 20px; color: var(--accent); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 700; }
h1 { max-width: 780px; margin: 0; font-size: clamp(52px, 7vw, 92px); line-height: .96; letter-spacing: -.055em; }
.lead { max-width: 690px; margin: 30px 0 0; color: var(--muted); font-size: 20px; line-height: 1.65; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; }
.button { padding: 14px 20px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 700; }
.button.primary { color: #07110f; background: var(--accent); border-color: var(--accent); }
.button.secondary:hover { border-color: var(--accent); }

.system-card { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: rgba(12, 25, 22, .72); box-shadow: 0 28px 70px rgba(0, 0, 0, .28); }
.status-row { display: flex; align-items: center; gap: 10px; padding-bottom: 22px; color: var(--accent); font-size: 13px; text-transform: uppercase; letter-spacing: .1em; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 18px var(--accent-2); }
.metric { display: flex; justify-content: space-between; gap: 24px; padding: 18px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.metric strong { color: var(--text); font-weight: 600; }

.section { padding: 110px 0; border-bottom: 1px solid var(--line); }
.section-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; }
h2 { margin: 0; font-size: clamp(34px, 5vw, 56px); line-height: 1.04; letter-spacing: -.04em; }
.section-grid > p { margin: 0; color: var(--muted); font-size: 19px; line-height: 1.75; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cards article { min-height: 270px; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: rgba(12, 25, 22, .45); }
.card-number { color: var(--accent); font-size: 12px; letter-spacing: .14em; }
h3 { margin: 64px 0 16px; font-size: 24px; }
.cards p { margin: 0; color: var(--muted); line-height: 1.65; }

.contact { margin: 100px 0; padding: 48px; display: flex; justify-content: space-between; align-items: end; gap: 40px; border-radius: 24px; background: var(--accent); color: #07110f; }
.contact .eyebrow { color: #174c39; }
.contact-link { flex: none; padding-bottom: 6px; border-bottom: 1px solid rgba(7, 17, 15, .35); font-size: 18px; font-weight: 800; }
footer { padding: 30px 0 44px; display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }

@media (max-width: 800px) {
  nav { display: none; }
  .hero { min-height: auto; padding: 90px 0; grid-template-columns: 1fr; gap: 48px; }
  .section-grid, .cards { grid-template-columns: 1fr; }
  .section-grid { gap: 28px; }
  .section { padding: 80px 0; }
  .cards article { min-height: 220px; }
  .contact { align-items: start; flex-direction: column; padding: 34px; }
  footer { gap: 16px; flex-direction: column; }
}