:root {
  --bg: #050505;
  --bg-2: #0a0a0a;
  --panel: #0e0e0e;
  --line: #161616;
  --fg: #d6d6d6;
  --fg-dim: #888;
  --fg-faint: #555;
  --accent: #7ac9a8;
  --accent-2: #1f4e3d;
  --radius: 10px;
  --maxw: 1080px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(5,5,5,.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: -.02em;
  font-size: 18px;
}
.brand::before {
  content: "▸ "; color: var(--accent); margin-right: 2px;
}
.nav nav { display: flex; gap: 22px; align-items: center; }
.nav nav a { color: var(--fg-dim); font-size: 14px; transition: color .15s; }
.nav nav a:hover { color: var(--fg); }
.nav nav a.cta {
  background: var(--accent); color: #061a13;
  padding: 8px 14px; border-radius: 6px;
  font-weight: 600;
}
.nav nav a.cta:hover { background: #92dab9; }

/* Hero */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero .wrap { position: relative; z-index: 2; max-width: 780px; }
.pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 28px;
}
h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.05;
  margin: 0 0 22px;
  background: linear-gradient(180deg, #fff 0%, #999 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 600px;
  margin: 0 0 36px;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  transition: transform .12s ease, background .15s, border-color .15s;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  color: #061a13;
}
.btn.primary:hover { background: #92dab9; }
.btn.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
}
.btn.ghost:hover { border-color: var(--fg-faint); }
.btn.big { padding: 16px 32px; font-size: 16px; }
.meta { font-family: var(--mono); font-size: 12px; color: var(--fg-faint); }

.glow {
  position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(closest-side, rgba(122,201,168,.12), transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* Sections */
section h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -.025em;
  margin: 0 0 8px;
}
.sub { color: var(--fg-dim); margin: 0 0 28px; }

.features { padding: 80px 0; border-top: 1px solid var(--line); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 32px;
}
.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent-2); transform: translateY(-2px); }
.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}
.card p { margin: 0; color: var(--fg-dim); font-size: 14px; }

/* Download */
.download {
  padding: 100px 0;
  text-align: center;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(800px 300px at 50% 0%, rgba(122,201,168,.08), transparent 70%),
    var(--bg);
}
.download h2 { font-size: 40px; }
.download .btn { margin: 18px 0 14px; }

/* FAQ */
.faq { padding: 80px 0; border-top: 1px solid var(--line); }
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--bg-2);
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--fg);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--fg-faint); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 10px 0 0; color: var(--fg-dim); font-size: 14px; }

/* Footer */
footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--fg-faint);
  font-size: 13px;
}
footer .wrap { display: flex; gap: 10px; align-items: center; }
.dot { color: var(--line); }

@media (max-width: 600px) {
  .nav nav a:not(.cta) { display: none; }
  .hero { padding: 80px 0 60px; }
  h1 { font-size: 44px; }
  .lede { font-size: 16px; }
  section h2 { font-size: 26px; }
}