:root {
  --bg0: #0c1210;
  --bg1: #15241c;
  --ink: #e8f0ea;
  --muted: #9bb0a3;
  --accent: #c8f542;
  --accent-ink: #10210f;
  --line: rgba(232, 240, 234, 0.14);
  --font: "Manrope", system-ui, sans-serif;
  --display: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg0);
  line-height: 1.5;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(200, 245, 66, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 20%, rgba(56, 120, 90, 0.35), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 45%, #0a100e);
}
.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  opacity: 0.35;
  pointer-events: none;
}

.top {
  max-width: 920px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.brand {
  font-family: var(--display);
  font-size: 1.5rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.top-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.top-link:hover { color: var(--accent); }

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.hero {
  min-height: min(78vh, 720px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 0 2.5rem;
  animation: rise 0.8s ease both;
}
.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.4rem, 10vw, 5.8rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
}
.lead {
  margin: 1.25rem 0 0;
  max-width: 34rem;
  font-size: 1.15rem;
  color: var(--muted);
  animation: rise 0.9s 0.1s ease both;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
  animation: rise 1s 0.2s ease both;
}

.section {
  padding: 2.75rem 0 0.5rem;
  border-top: 1px solid var(--line);
  animation: rise 0.7s ease both;
}
.section h2 {
  margin: 0 0 0.5rem;
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 400;
}
.section-lead {
  margin: 0 0 1.25rem;
  max-width: 36rem;
  color: var(--muted);
}
.section-lead a { color: var(--accent); }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.2rem;
  border-radius: 0.35rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

.key-box {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 0 0.25rem;
}
.key-box code {
  display: block;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  background: rgba(0, 0, 0, 0.28);
  color: var(--ink);
  font-size: 0.82rem;
  word-break: break-all;
  line-height: 1.45;
}
.copied {
  margin: 0;
  color: var(--accent);
  font-size: 0.9rem;
}
.hint {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 38rem;
}
.hint a { color: var(--accent); }

.steps {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink);
  max-width: 38rem;
}
.steps li { margin: 0.55rem 0; color: var(--muted); }
.steps strong { color: var(--ink); font-weight: 600; }
.steps a { color: var(--accent); }

footer {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 560px) {
  .hero { min-height: auto; padding-top: 2.5rem; }
  .btn { width: 100%; }
}