:root {
  color-scheme: dark;
  --ink: #e9f4ef;
  --muted: #9fb6aa;
  --surface: rgba(12, 28, 24, 0.86);
  --line: rgba(137, 255, 197, 0.19);
  --signal: #76ffb4;
  --signal-deep: #18bf73;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 18%, rgba(40, 190, 121, 0.22), transparent 34rem),
    linear-gradient(145deg, #05120e 0%, #081b16 48%, #06100d 100%);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 4vw, 4rem);
}

.hero {
  width: min(58rem, 100%);
  padding: clamp(1.75rem, 6vw, 5rem);
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: var(--surface);
  box-shadow: 0 2rem 8rem rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(18px);
}

.pulse {
  width: 1rem;
  height: 1rem;
  margin-bottom: 2rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(118, 255, 180, 0.55);
  animation: pulse 2.2s infinite;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--signal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 8vw, 6.4rem);
  letter-spacing: -0.065em;
  line-height: 0.94;
}

.lede {
  max-width: 43rem;
  margin: 1.6rem 0 2.2rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.65;
}

.runtime {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 2rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--line);
}

.runtime div { padding: 1rem; background: #0a1d17; }
.runtime dt { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.runtime dd { margin: 0.35rem 0 0; overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.health {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  color: #022413;
  background: var(--signal);
  font-weight: 800;
  text-decoration: none;
}

.health:hover, .health:focus-visible { background: #a2ffcd; outline: 3px solid rgba(118, 255, 180, 0.28); outline-offset: 3px; }

@keyframes pulse {
  70% { box-shadow: 0 0 0 1rem rgba(118, 255, 180, 0); }
  100% { box-shadow: 0 0 0 0 rgba(118, 255, 180, 0); }
}

@media (max-width: 34rem) {
  .hero { border-radius: 1.25rem; }
  .runtime { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .pulse { animation: none; }
}