:root {
  --bg: #07100f;
  --bg-soft: #0d1b19;
  --surface: rgba(246, 239, 221, 0.08);
  --surface-strong: rgba(246, 239, 221, 0.14);
  --text: #f4efdf;
  --muted: #aebdb2;
  --line: rgba(244, 239, 223, 0.16);
  --accent: #d6ff7f;
  --accent-2: #6ee7c9;
  --ink: #14211f;
  --radius-xl: 34px;
  --radius-lg: 24px;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Aptos Display", "Gill Sans", "Trebuchet MS", sans-serif;
  background:
    radial-gradient(circle at 18% 12%, rgba(214, 255, 127, 0.22), transparent 28%),
    radial-gradient(circle at 82% 0%, rgba(110, 231, 201, 0.22), transparent 34%),
    linear-gradient(145deg, #06100f 0%, #0a1715 45%, #101b15 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.26;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1160px, calc(100% - 40px));
  margin: 18px auto 0;
  padding: 12px 12px 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(7, 16, 15, 0.72);
  backdrop-filter: blur(18px);
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, var(--accent), var(--accent-2)),
    var(--accent);
  box-shadow: 0 0 24px rgba(214, 255, 127, 0.28);
}

.nav {
  gap: 6px;
}

.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: color 180ms ease, background 180ms ease;
}

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

main {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 52px;
  align-items: center;
  min-height: 720px;
  padding: 76px 0 84px;
}

.hero h1,
.section h2 {
  margin: 0;
  max-width: 760px;
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: clamp(48px, 8vw, 104px);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

.hero p,
.section p {
  margin: 28px 0 0;
  max-width: 590px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: -0.02em;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--ink);
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.button-ghost {
  color: var(--text);
  background: rgba(244, 239, 223, 0.05);
}

.signal-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(160deg, rgba(244, 239, 223, 0.13), rgba(244, 239, 223, 0.05)),
    rgba(7, 16, 15, 0.78);
  box-shadow: var(--shadow);
}

.signal-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -38% -20%;
  height: 180px;
  background: radial-gradient(circle, rgba(214, 255, 127, 0.32), transparent 64%);
}

.signal-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.signal-header strong {
  color: var(--text);
}

.route-map {
  position: relative;
  height: 310px;
  margin-top: 18px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 45%, rgba(214, 255, 127, 0.16), transparent 30%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.node,
.route {
  position: absolute;
  display: block;
}

.node {
  width: 18px;
  height: 18px;
  border: 4px solid rgba(7, 16, 15, 0.9);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(214, 255, 127, 0.12);
}

.node-a { left: 18%; top: 22%; }
.node-b { right: 18%; top: 28%; background: var(--accent-2); }
.node-c { left: 31%; bottom: 20%; background: #f3c96b; }
.node-d { right: 27%; bottom: 28%; }

.route {
  height: 2px;
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, rgba(214, 255, 127, 0.85), transparent);
}

.route-one {
  left: 23%;
  top: 27%;
  width: 210px;
  transform: rotate(4deg);
}

.route-two {
  left: 34%;
  top: 62%;
  width: 180px;
  transform: rotate(-14deg);
}

.route-three {
  left: 21%;
  top: 33%;
  width: 170px;
  transform: rotate(64deg);
}

.metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 18px 0 0;
}

.metrics div,
.feature-grid article,
.status-board {
  border: 1px solid var(--line);
  background: var(--surface);
}

.metrics div {
  padding: 14px;
  border-radius: 18px;
}

.metrics dt {
  color: var(--muted);
  font-size: 12px;
}

.metrics dd {
  margin: 7px 0 0;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.section {
  padding: 88px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  font-size: clamp(38px, 5vw, 70px);
}

.split {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 56px;
  align-items: start;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article {
  min-height: 220px;
  padding: 24px;
  border-radius: var(--radius-lg);
}

.icon {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(214, 255, 127, 0.98), rgba(110, 231, 201, 0.88));
}

.feature-grid h3 {
  margin: 42px 0 0;
  font-size: 24px;
  letter-spacing: -0.05em;
}

.feature-grid p {
  margin-top: 12px;
  font-size: 15px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 30px;
}

.section-heading p {
  max-width: 360px;
  margin: 0;
  font-size: 17px;
}

.status-board {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.status-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  padding: 22px 26px;
}

.status-row + .status-row {
  border-top: 1px solid var(--line);
}

.status-row span {
  color: var(--muted);
}

.status-row strong {
  color: var(--accent);
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 42px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .site-header {
    position: static;
  }

  .nav {
    display: none;
  }

  .hero,
  .split,
  .contact,
  .section-heading {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }

  .signal-card {
    max-width: 560px;
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .footer {
    width: min(100% - 28px, 1160px);
  }

  .hero h1,
  .section h2 {
    letter-spacing: -0.06em;
  }

  .hero p,
  .section p {
    font-size: 17px;
  }

  .feature-grid,
  .metrics {
    grid-template-columns: 1fr;
  }

  .route-map {
    height: 240px;
  }

  .footer {
    flex-direction: column;
  }
}