:root {
  --bg: #0a0e14;
  --panel: #0e131b;
  --raised: #151c27;
  --line: #1f2a38;
  --text: #f2f5f8;
  --muted: #8b97a6;
  --teal: #2dd4bf;
  --teal-ink: #04201c;
  --amber: #f5a524;
  --radius: 14px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Nav */
nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 14, 20, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.02em; text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.brand span { color: var(--teal); }
.links { display: flex; gap: 26px; font-size: 15px; color: var(--muted); }
.links a { text-decoration: none; }
.links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 10px;
  font-weight: 700; font-size: 15px; text-decoration: none;
  border: 1px solid var(--line); transition: transform .12s, background .12s;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--teal); color: var(--teal-ink); border-color: var(--teal); }
.btn.ghost { background: var(--raised); }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-img {
  position: absolute; inset: 0;
  background: url(/lab.jpg) center 30% / cover no-repeat;
  opacity: 0.55;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,14,20,0.35) 0%, rgba(10,14,20,0.75) 55%, var(--bg) 100%);
}
.hero .wrap { position: relative; z-index: 1; padding-top: 120px; padding-bottom: 96px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: rgba(45, 212, 191, 0.12); color: var(--teal);
  border: 1px solid rgba(45, 212, 191, 0.35);
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
}
.pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); }
h1 {
  margin: 20px 0 10px;
  font-size: clamp(44px, 8vw, 92px); line-height: 0.98; font-weight: 900; letter-spacing: -0.02em;
}
h1 em { font-style: normal; color: var(--teal); }
.lede { max-width: 620px; font-size: clamp(17px, 2.2vw, 20px); color: #c9d1db; margin: 0 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

/* Sections */
section { padding: 88px 0; }
.eyebrow { color: var(--teal); font-weight: 800; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; }
h2 { font-size: clamp(30px, 4.4vw, 44px); line-height: 1.1; margin: 10px 0 14px; letter-spacing: -0.01em; }
.sub { color: var(--muted); max-width: 640px; margin: 0 0 40px; font-size: 18px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.num {
  width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(45, 212, 191, 0.12); color: var(--teal); font-weight: 900;
  margin-bottom: 16px;
}
.card h3 { margin: 0 0 6px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.feature b { display: block; margin-bottom: 4px; }
.feature span { color: var(--muted); font-size: 14px; }

.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.model {
  background: radial-gradient(circle at 50% 40%, #1a2330, var(--panel) 70%);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.model img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.model .meta { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-top: 1px solid var(--line); }
.model .meta small { color: var(--muted); }
.tag { font-size: 12px; font-weight: 700; color: var(--teal); background: rgba(45,212,191,.12); padding: 4px 10px; border-radius: 999px; }

.checks { list-style: none; padding: 0; margin: 0 0 30px; display: grid; gap: 14px; }
.checks li { display: grid; grid-template-columns: 26px 1fr; gap: 10px; }
.checks li::before {
  content: "✓"; width: 22px; height: 22px; border-radius: 6px; margin-top: 2px;
  display: grid; place-items: center; font-size: 13px; font-weight: 900;
  background: rgba(45, 212, 191, 0.15); color: var(--teal);
}
.checks b { display: block; }
.checks span { color: var(--muted); }

.parents { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

details { border-bottom: 1px solid var(--line); padding: 18px 0; }
details summary { cursor: pointer; font-weight: 700; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 20px; }
details summary::after { content: "+"; color: var(--teal); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 10px 0 0; max-width: 760px; }

footer { padding: 40px 0 56px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--text); }

@media (max-width: 900px) {
  .steps, .split { grid-template-columns: 1fr; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .links { display: none; }
  .hero .wrap { padding-top: 80px; padding-bottom: 64px; }
  section { padding: 64px 0; }
}
@media (max-width: 480px) {
  .features { grid-template-columns: 1fr; }
}

/* Homepage */
.games { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.game { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; transition: border-color .15s, transform .15s; }
a.game:hover { border-color: rgba(45, 212, 191, 0.5); transform: translateY(-2px); }
.game .shot { aspect-ratio: 16 / 9; background: var(--raised) center / cover no-repeat; }
.game .body { padding: 20px 22px 22px; display: grid; gap: 6px; }
.game .body p { margin: 0; color: var(--muted); }
.game h3 { margin: 0; font-size: 22px; }
.game.soon { border-style: dashed; justify-content: center; min-height: 100%; }
.game.soon .body { text-align: center; padding: 40px 22px; }
.stack { display: flex; gap: 8px; flex-wrap: wrap; }
.pill.muted { background: var(--raised); color: var(--muted); border-color: var(--line); }
.pill.muted i { background: var(--muted); box-shadow: none; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) {
  .games, .values { grid-template-columns: 1fr; }
}