:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f0f3f8;
  --ink: #10131a;
  --muted: #616978;
  --line: #dfe4ec;
  --brand: #315efb;
  --brand-2: #6d5dfc;
  --atlas: #0d9f8f;
  --origin: #315efb;
  --robotics: #8255e7;
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(19, 27, 45, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 4%, rgba(49,94,251,.09), transparent 28rem),
    radial-gradient(circle at 12% 30%, rgba(109,93,252,.06), transparent 24rem),
    var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { max-width: 100%; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,249,252,.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(223,228,236,.75);
}
.nav { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 760; letter-spacing: -.025em; }
.brand-mark { width: 30px; height: 30px; display: inline-grid; place-items: center; }
.brand-name { font-size: 1.08rem; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; color: #394150; font-size: .94rem; font-weight: 600; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { padding: 10px 16px; border-radius: 999px; background: var(--ink); color: #fff !important; }
.menu-button { display:none; border:0; background:transparent; padding:8px; font:inherit; }
.hero { padding: 112px 0 70px; overflow: hidden; }
.eyebrow { display:inline-flex; align-items:center; gap:8px; font-size:.78rem; font-weight:750; letter-spacing:.12em; text-transform:uppercase; color:#4f5969; }
.eyebrow::before { content:""; width:24px; height:1px; background:currentColor; }
h1,h2,h3 { margin:0; line-height:1.08; letter-spacing:-.04em; }
h1 { font-size: clamp(3.3rem, 7vw, 6.8rem); max-width: 980px; font-weight: 760; }
h2 { font-size: clamp(2.15rem, 4vw, 3.6rem); font-weight: 720; }
h3 { font-size: 1.45rem; font-weight: 700; }
.lead { max-width: 780px; margin: 28px 0 0; font-size: clamp(1.12rem,2vw,1.42rem); line-height:1.58; color:#515b6a; }
.hero-actions, .section-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:34px; }
.button { display:inline-flex; align-items:center; justify-content:center; gap:9px; padding:13px 19px; border-radius:999px; text-decoration:none; font-weight:700; border:1px solid var(--line); background:var(--surface); }
.button.primary { background:var(--ink); color:#fff; border-color:var(--ink); }
.button:hover { transform: translateY(-1px); }
.hero-visual { margin-top: 72px; border:1px solid var(--line); border-radius:30px; background:rgba(255,255,255,.76); box-shadow:var(--shadow); padding:24px; overflow:hidden; }
.system-map { min-height: 300px; position:relative; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; align-items:center; }
.system-map::before { content:""; position:absolute; left:7%; right:7%; top:50%; height:1px; background:linear-gradient(90deg, transparent, #cbd3df 16%, #cbd3df 84%, transparent); }
.node { position:relative; z-index:2; min-height:210px; padding:26px; border-radius:20px; background:#fff; border:1px solid var(--line); display:flex; flex-direction:column; justify-content:space-between; }
.node small { color:var(--muted); font-weight:650; }
.node .node-index { font-size:.76rem; font-weight:760; letter-spacing:.12em; color:#8a93a3; }
.node.atlas { box-shadow: inset 0 3px 0 var(--atlas); }
.node.origin { box-shadow: inset 0 3px 0 var(--origin); }
.node.robotics { box-shadow: inset 0 3px 0 var(--robotics); }
section { padding: 92px 0; }
.section-intro { display:grid; grid-template-columns:.8fr 1.2fr; gap:70px; align-items:start; margin-bottom:44px; }
.section-intro p { margin:0; color:var(--muted); font-size:1.08rem; max-width:680px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.card { background:rgba(255,255,255,.88); border:1px solid var(--line); border-radius:var(--radius); padding:30px; box-shadow:0 10px 34px rgba(28,38,58,.035); }
.product-card { min-height:360px; display:flex; flex-direction:column; }
.product-card .status { margin-bottom:46px; }
.product-card p { color:var(--muted); margin:16px 0 24px; }
.product-card a { margin-top:auto; text-decoration:none; font-weight:750; }
.status { display:inline-flex; width:max-content; align-items:center; gap:8px; padding:6px 10px; border:1px solid var(--line); border-radius:999px; background:#fafbfc; color:#5e6775; font-size:.76rem; font-weight:750; }
.status::before { content:""; width:7px; height:7px; border-radius:50%; background:#9ba4b2; }
.principles { background:#11151d; color:#fff; }
.principles .section-intro p { color:#aeb8c8; }
.principle { padding:26px 0; border-top:1px solid #2a313e; }
.principle span { display:block; color:#7f8a9a; font-size:.78rem; font-weight:750; letter-spacing:.1em; margin-bottom:10px; }
.principle p { color:#b8c0cc; margin:10px 0 0; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:26px; }
.panel { border-radius:28px; padding:42px; border:1px solid var(--line); background:rgba(255,255,255,.9); }
.panel.dark { background:#11151d; color:#fff; border-color:#11151d; }
.panel p { color:var(--muted); }
.panel.dark p { color:#b8c0cc; }
.kicker { font-size:.82rem; font-weight:800; text-transform:uppercase; letter-spacing:.12em; color:#717b8b; }
.product-hero { padding:100px 0 54px; }
.product-hero h1 { font-size:clamp(3rem,6vw,5.8rem); }
.product-hero .meta { display:flex; gap:10px; flex-wrap:wrap; margin-top:25px; }
.feature-list { display:grid; grid-template-columns:repeat(2,1fr); gap:1px; border:1px solid var(--line); border-radius:24px; overflow:hidden; background:var(--line); }
.feature { background:#fff; padding:28px; }
.feature p { color:var(--muted); margin:10px 0 0; }
.notice { margin-top:26px; padding:18px 20px; border-radius:16px; border:1px solid #d8deea; background:#f6f8fb; color:#596374; font-size:.95rem; }
.cta-band { padding:50px; border-radius:30px; background:linear-gradient(135deg,#11151d,#212a3a); color:#fff; display:flex; justify-content:space-between; align-items:center; gap:30px; }
.cta-band p { color:#b8c1cf; margin:12px 0 0; max-width:650px; }
.cta-band .button { background:#fff; color:#11151d; border-color:#fff; flex:none; }
.site-footer { padding:56px 0 38px; border-top:1px solid var(--line); }
.footer-grid { display:grid; grid-template-columns:1.4fr repeat(3,.6fr); gap:32px; }
.footer-copy { color:var(--muted); max-width:420px; }
.footer-col h4 { margin:0 0 14px; font-size:.82rem; text-transform:uppercase; letter-spacing:.1em; color:#788291; }
.footer-col a { display:block; text-decoration:none; color:#3e4755; margin:8px 0; font-size:.93rem; }
.footer-bottom { display:flex; justify-content:space-between; gap:20px; margin-top:44px; padding-top:22px; border-top:1px solid var(--line); color:#7c8593; font-size:.88rem; }
.prose { max-width:790px; }
.prose p, .prose li { color:#555f6e; }
.prose h2 { font-size:2rem; margin:44px 0 18px; }
.prose h3 { margin:30px 0 12px; }
.prose ul { padding-left:20px; }
.accent-atlas { color:var(--atlas); }
.accent-origin { color:var(--origin); }
.accent-robotics { color:var(--robotics); }
@media (max-width: 900px) {
  .nav-links { display:none; position:absolute; left:20px; right:20px; top:70px; padding:20px; border:1px solid var(--line); border-radius:18px; background:#fff; box-shadow:var(--shadow); flex-direction:column; align-items:stretch; }
  .nav-links.open { display:flex; }
  .menu-button { display:block; }
  .section-intro, .split, .footer-grid { grid-template-columns:1fr; gap:26px; }
  .grid-3 { grid-template-columns:1fr; }
  .system-map { grid-template-columns:1fr; }
  .system-map::before { display:none; }
  .feature-list { grid-template-columns:1fr; }
  .cta-band { align-items:flex-start; flex-direction:column; }
}
@media (max-width: 560px) {
  .container { width:min(calc(100% - 28px), var(--max)); }
  .hero { padding-top:78px; }
  section { padding:70px 0; }
  .panel, .card, .hero-visual, .cta-band { padding:24px; border-radius:20px; }
  .footer-bottom { flex-direction:column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { transition:none !important; animation:none !important; }
}