:root {
  --bg: #07090b;
  --bg2: #0e1318;
  --card: #121820;
  --line: rgba(232, 240, 230, 0.1);
  --text: #e8f0e6;
  --muted: #8b9a90;
  --accent: #c8f542;
  --accent-ink: #10140a;
  --warn: #ff6b4a;
  --radius: 18px;
  --font-display: "Archivo Black", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(1000px 500px at 10% -10%, rgba(200, 245, 66, 0.12), transparent 55%),
    radial-gradient(800px 400px at 90% 10%, rgba(80, 140, 120, 0.18), transparent 50%),
    linear-gradient(180deg, var(--bg), var(--bg2) 40%, #050607);
  line-height: 1.6;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.04;
  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='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.top, main, footer { position: relative; z-index: 1; }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 24px 0;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}
.brand span { color: var(--accent); }
nav { display: flex; gap: 18px; align-items: center; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
nav a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink) !important;
  font-weight: 700;
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 24px 48px;
}
.eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--accent);
}
h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 10vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
}
.mark { color: var(--accent); }
.lede {
  max-width: 34rem;
  margin: 22px 0 28px;
  font-size: 1.12rem;
  color: var(--muted);
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 48px 0 0;
  padding: 0;
}
.stats li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 24, 32, 0.7);
  backdrop-filter: blur(8px);
}
.stats strong { display: block; font-size: 1rem; margin-bottom: 4px; }
.stats span { color: var(--muted); font-size: 0.88rem; }

.panel {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}
.section-head { margin-bottom: 28px; }
.section-head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
}
.section-head p { margin: 0; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.grid article {
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(24, 32, 40, 0.9), rgba(12, 16, 20, 0.95));
}
.grid h3 { margin: 0 0 8px; font-size: 1.1rem; }
.grid p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.steps li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(18, 24, 32, 0.65);
}
.steps .n {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 600;
  font-size: 1.1rem;
}
.steps h3 { margin: 0 0 6px; }
.steps p { margin: 0; color: var(--muted); }
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--accent);
}

.download-card {
  padding: clamp(28px, 5vw, 48px);
  border-radius: 28px;
  border: 1px solid rgba(200, 245, 66, 0.28);
  background:
    linear-gradient(135deg, rgba(200, 245, 66, 0.1), transparent 40%),
    var(--card);
}
.lede-sm { max-width: 36rem; color: var(--muted); margin: 10px 0 24px; }
.hint { margin: 18px 0 0; color: var(--muted); font-size: 0.85rem; }

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 48px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}
footer strong { color: var(--text); margin-right: 10px; }

@media (max-width: 820px) {
  nav a:not(.nav-cta) { display: none; }
  .stats, .grid { grid-template-columns: 1fr; }
  .steps li { grid-template-columns: 48px 1fr; }
  .hero { padding-top: 48px; }
}