:root {
  color-scheme: dark;
  --bg: #071214;
  --panel: #0e2024;
  --line: rgba(153, 246, 228, 0.18);
  --text: #ecfffb;
  --muted: rgba(236, 255, 251, 0.68);
  --faint: rgba(236, 255, 251, 0.48);
  --accent: #2dd4bf;
  --blue: #38bdf8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0, rgba(45, 212, 191, 0.18), transparent 34rem),
    radial-gradient(circle at 85% 15%, rgba(56, 189, 248, 0.14), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 18, 20, 0.84);
  backdrop-filter: blur(18px);
}

/* The MAH dev host injects a fixed environment banner before page content. */
body > div[style*="position:fixed"][style*="z-index:99999"] + .site-header {
  top: 29px;
  margin-top: 29px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  border-radius: 8px;
  border: 1px solid rgba(45, 212, 191, 0.5);
  background: rgba(45, 212, 191, 0.1);
  color: var(--accent);
  font-weight: 800;
}

.brand small, .eyebrow, .lead, p, footer, .checklist {
  color: var(--muted);
}

nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a, .button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.62rem 0.8rem;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.035);
}

nav a:hover, .button:hover {
  background: rgba(45, 212, 191, 0.1);
}

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(19rem, 0.72fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: center;
  min-height: calc(100vh - 5rem);
  padding: clamp(2rem, 7vw, 6rem) 0;
}

.eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--accent);
}

h1, h2, h3 { letter-spacing: 0; }
h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.92;
}
h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1;
}
h3 { margin: 0 0 0.6rem; }

.lead {
  max-width: 42rem;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.button.primary {
  border-color: rgba(45, 212, 191, 0.7);
  background: var(--accent);
  color: #04201c;
  font-weight: 800;
}

.signal-panel, .band article, .split, .timeline div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(14, 32, 36, 0.72);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
}

.signal-panel {
  padding: 1rem;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  color: var(--faint);
  font-size: 0.82rem;
}

.meter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
  margin: 1rem 0;
}

.meter-grid div {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.85rem;
  background: rgba(255, 255, 255, 0.035);
}

.meter-grid small {
  display: block;
  color: var(--faint);
  margin-bottom: 0.35rem;
}

.meter-grid strong {
  font-size: 1.45rem;
}

.pulse-line {
  height: 7rem;
  border-radius: 8px;
  background:
    linear-gradient(90deg, transparent 0 7%, rgba(45, 212, 191, 0.32) 7% 8%, transparent 8% 17%, rgba(56, 189, 248, 0.55) 17% 18%, transparent 18% 34%, rgba(45, 212, 191, 0.72) 34% 35%, transparent 35% 100%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 18px);
}

.band, .split {
  margin: 2rem 0;
  padding: clamp(1rem, 3vw, 2rem);
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.band article {
  padding: 1rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.78fr);
  gap: 2rem;
  align-items: start;
}

.checklist {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.8;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.timeline div {
  display: grid;
  gap: 0.7rem;
  padding: 1rem;
}

.timeline strong {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: rgba(45, 212, 191, 0.14);
  color: var(--accent);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  width: min(1180px, calc(100% - 2rem));
  margin: 4rem auto 0;
  padding: 1.5rem 0 2rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .site-header, .hero, .split {
    grid-template-columns: 1fr;
  }
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }
  nav {
    justify-content: flex-start;
  }
  .cards, .timeline {
    grid-template-columns: 1fr;
  }
  h1 {
    max-width: 10ch;
  }
}