:root {
  --bg-0: #06101c;
  --bg-1: #0b1c33;
  --ink: #e7f0ff;
  --muted: #8fa6c4;
  --accent: #6ec8ff;
  --accent-hot: #ffb454;
  --line: rgba(110, 200, 255, 0.2);
  --font-display: "Space Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-mono);
  background:
    radial-gradient(900px 500px at 80% 0%, rgba(110, 200, 255, 0.16), transparent 55%),
    radial-gradient(700px 420px at 10% 70%, rgba(255, 180, 84, 0.08), transparent 50%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 55%, #071525);
  overflow-x: hidden;
}

.stars,
.horizon {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
}

.stars {
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(1px 1px at 28% 42%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1.5px 1.5px at 63% 22%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 78% 58%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1px 1px at 44% 70%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1.5px 1.5px at 91% 14%, rgba(110, 200, 255, 0.9), transparent),
    radial-gradient(1px 1px at 8% 78%, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0.85;
  animation: drift 28s linear infinite;
}

.horizon {
  background:
    linear-gradient(180deg, transparent 58%, rgba(110, 200, 255, 0.05) 72%, rgba(7, 21, 37, 0.9) 100%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 48px,
      rgba(110, 200, 255, 0.04) 48px,
      rgba(110, 200, 255, 0.04) 49px
    );
  mask-image: linear-gradient(180deg, transparent 35%, black 70%);
}

@keyframes drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-18px);
  }
}

.topbar,
.hero,
.brief,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
}

.logo {
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-hot);
  box-shadow: 0 0 0 0 rgba(255, 180, 84, 0.5);
  animation: pulse 2.2s ease-out infinite;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 10px rgba(255, 180, 84, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 180, 84, 0);
  }
}

.hero {
  min-height: calc(100vh - 4.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 6vw, 5rem) clamp(1.25rem, 4vw, 3rem) 3rem;
  max-width: 48rem;
}

.callsign {
  margin: 0 0 1rem;
  color: var(--accent-hot);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0;
  animation: rise 0.8s ease forwards 0.1s;
}

.brand {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.2rem, 10vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  opacity: 0;
  animation: rise 0.9s ease forwards 0.2s;
}

.lede {
  margin: 1.4rem 0 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: clamp(0.98rem, 2vw, 1.08rem);
  line-height: 1.6;
  opacity: 0;
  animation: rise 0.9s ease forwards 0.35s;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.1rem;
  opacity: 0;
  animation: rise 0.9s ease forwards 0.5s;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0 1.2rem;
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.cta.primary {
  background: var(--accent);
  color: #06101c;
  font-weight: 600;
}

.cta.primary:hover {
  transform: translateY(-2px);
  background: #8fd4ff;
}

.cta.ghost {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(8, 24, 40, 0.45);
}

.cta.ghost:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brief {
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem) 4rem;
}

.brief h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.meta {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.meta > div {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.meta dt {
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.meta dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.key-card {
  margin: 1.5rem 0 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: #fff8e8;
  max-width: 28rem;
}

.key-card img {
  display: block;
  width: 100%;
  height: auto;
}

.key-card figcaption {
  margin-top: 0.75rem;
  color: #5a3a28;
  font-size: 0.78rem;
  line-height: 1.45;
}

.footer {
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem) 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .callsign,
  .brand,
  .lede,
  .cta-row {
    opacity: 1;
  }
}