:root{
  --bg:#ffffff;
  --ink:#0b1d3a;
  --ink-soft:#34456a;
  --muted:#6a7a99;
  --line:#e6ebf3;
  --card:#ffffff;
  --alt:#f5f8fd;
  --accent:#2466f5;
  --accent-2:#5aa2ff;
  --accent-ink:#0c2e88;
  --ok:#0aa06e;
  --warn:#e98a12;
  --shadow:0 10px 30px rgba(11,29,58,.08);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1120px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container.narrow{max-width:820px}

/* Header / Nav */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(1.2) blur(10px);
  -webkit-backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);font-weight:800;letter-spacing:-.01em;
}
.brand:hover{text-decoration:none}
.brand-mark{
  display:inline-grid;place-items:center;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;box-shadow:0 6px 18px rgba(36,102,245,.35);
}
.brand-name{font-size:19px}
.nav-links{display:flex;gap:28px}
.nav-links a{color:var(--ink-soft);font-weight:500;font-size:15px}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-toggle{display:none;background:transparent;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px;transition:transform .2s ease, opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;flex-direction:column;padding:12px 24px 20px;border-bottom:1px solid var(--line);background:#fff}
.mobile-menu a{padding:10px 0;color:var(--ink-soft);font-weight:500;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}

/* Hero */
.hero{position:relative;overflow:hidden;isolation:isolate}
.hero-bg{
  position:absolute;inset:-10% -10% auto -10%;height:120%;z-index:-1;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(90,162,255,.30), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(36,102,245,.18), transparent 60%),
    linear-gradient(180deg,#f3f7ff 0%, #ffffff 70%);
}
.hero-grid{
  display:grid;grid-template-columns:1.1fr 1fr;gap:56px;
  padding:72px 24px 80px;align-items:center;
}
.eyebrow{
  display:inline-block;font-weight:600;font-size:13px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent-ink);
  background:rgba(36,102,245,.08);padding:6px 10px;border-radius:999px;
}
h1{
  font-size:clamp(34px,5vw,56px);line-height:1.07;letter-spacing:-.02em;
  margin:18px 0 16px;font-weight:800;
}
h1 .accent{
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{font-size:18px;color:var(--ink-soft);max-width:56ch}
.hero-bullets{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}
.hero-bullets li{
  position:relative;padding-left:28px;color:var(--ink-soft);font-weight:500;
}
.hero-bullets li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#fff 0 22%,var(--accent) 23% 100%);
  box-shadow:0 4px 10px rgba(36,102,245,.35);
}

/* Hero Visual / Phone mock */
.hero-visual{display:flex;justify-content:center}
.device{
  width:320px;height:620px;border-radius:42px;
  background:linear-gradient(180deg,#0b1d3a,#1d3573);
  padding:14px;box-shadow:0 30px 60px rgba(11,29,58,.25), inset 0 0 0 2px rgba(255,255,255,.06);
  position:relative;
}
.device::before{
  content:"";position:absolute;top:16px;left:50%;transform:translateX(-50%);
  width:120px;height:24px;border-radius:14px;background:#05122a;
}
.device-screen{
  background:linear-gradient(180deg,#eef4ff 0%,#ffffff 60%);
  width:100%;height:100%;border-radius:32px;padding:52px 18px 22px;
  display:flex;flex-direction:column;gap:14px;overflow:hidden;position:relative;
}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;padding:4px 8px;border-radius:999px;width:max-content}
.chip-live{background:rgba(10,160,110,.12);color:var(--ok)}
.flight-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:16px;box-shadow:0 10px 24px rgba(11,29,58,.08);
}
.route{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.route .code{font-weight:800;font-size:26px;letter-spacing:.02em}
.route .path{flex:1;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);position:relative}
.route .plane{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  font-size:18px;color:var(--accent);
}
.flight-card .meta{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:10px}
.flight-card .meta small{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.06em}
.flight-card .meta b{font-size:15px;color:var(--ink)}
.status{font-size:12px;font-weight:600;padding:6px 8px;border-radius:8px;background:rgba(10,160,110,.08);color:var(--ok)}
.mini-list{display:grid;gap:8px}
.mini{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:10px 12px;font-size:12px;display:flex;align-items:center;gap:8px;
}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot-g{background:#0aa06e}
.dot-b{background:#2b8bff}
.dot-o{background:#e98a12}
.dot-p{background:#8a5cf6}

/* Sections */
.section{padding:88px 0}
.section-alt{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;max-width:720px;margin:0 auto 44px}
.section-head h2{
  font-size:clamp(26px,3.6vw,38px);letter-spacing:-.02em;line-height:1.15;margin:14px 0 12px;font-weight:800;
}
.section-head p{color:var(--ink-soft);font-size:17px}

/* Features */
.feature-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.feature{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:transform .18s ease, box-shadow .18s ease;
}
.feature:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(11,29,58,.10)}
.feature h3{margin:14px 0 8px;font-size:18px;letter-spacing:-.01em}
.feature p{color:var(--ink-soft);margin:0;font-size:15px}
.icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 8px 20px rgba(36,102,245,.28);
}
.icon svg{width:22px;height:22px}
.icon-track{background:linear-gradient(135deg,#2466f5,#5aa2ff)}
.icon-bell{background:linear-gradient(135deg,#e98a12,#ffb547)}
.icon-family{background:linear-gradient(135deg,#8a5cf6,#c09bff)}
.icon-inbound{background:linear-gradient(135deg,#0aa06e,#3fd19f)}
.icon-sync{background:linear-gradient(135deg,#0b1d3a,#34456a)}
.icon-watch{background:linear-gradient(135deg,#e25b7a,#ff95ae)}
.icon-map{background:linear-gradient(135deg,#1098ad,#5ccfe6)}
.icon-board{background:linear-gradient(135deg,#2466f5,#0c2e88)}
.icon-tips{background:linear-gradient(135deg,#f0a500,#ffd36b)}

/* Steps */
.steps{
  list-style:none;padding:0;margin:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;
}
.steps li{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;position:relative;box-shadow:var(--shadow);
}
.step-num{
  display:inline-block;font-weight:800;font-size:14px;letter-spacing:.08em;
  color:var(--accent);background:rgba(36,102,245,.08);
  padding:4px 8px;border-radius:8px;margin-bottom:10px;
}
.steps h3{margin:6px 0 8px;font-size:18px}
.steps p{margin:0;color:var(--ink-soft);font-size:15px}

/* Stats */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  background:linear-gradient(135deg,#0b1d3a,#1d3573);
  color:#fff;border-radius:24px;padding:36px;
  box-shadow:0 30px 60px rgba(11,29,58,.25);
}
.stat{text-align:center;padding:10px}
.stat-num{font-size:clamp(28px,3.2vw,38px);font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(90deg,#fff,#b9d1ff);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:14px;color:#b9c7e8;margin-top:4px}

/* FAQ */
.faq{display:grid;gap:12px}
details{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;transition:box-shadow .18s ease;
}
details[open]{box-shadow:var(--shadow)}
summary{
  list-style:none;cursor:pointer;font-weight:600;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"";width:12px;height:12px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .2s ease;
}
details[open] summary::after{transform:rotate(-135deg)}
details p{color:var(--ink-soft);margin:10px 0 0}

/* Contact card */
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;text-align:center;box-shadow:var(--shadow);
}
.contact-line{font-size:22px;font-weight:700;color:var(--accent-ink)}
.contact-sub{color:var(--ink-soft);margin-top:8px}

/* Footer */
.site-footer{
  background:#0b1d3a;color:#cbd5ea;padding:56px 0 28px;margin-top:40px;
}
.footer-grid{
  display:grid;grid-template-columns:1fr 1.3fr;gap:32px;align-items:start;
}
.footer-brandmark{color:#fff;font-weight:800}
.footer-brandmark .brand-name{color:#fff}
.footer-tag{color:#8ea1c8;margin:10px 0 0;max-width:40ch}
.footer-address{font-style:normal;color:#cbd5ea;line-height:1.7}
.footer-address strong{color:#fff;letter-spacing:.02em}
.footer-address a{color:#9dc0ff}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.08);margin-top:36px;padding-top:20px;gap:16px;flex-wrap:wrap;
}
.footer-bottom small{color:#8ea1c8}
.footer-nav{display:flex;gap:18px}
.footer-nav a{color:#cbd5ea;font-size:14px}

/* Responsive */
@media (max-width: 960px){
  .hero-grid{grid-template-columns:1fr;gap:28px;padding:56px 24px 48px}
  .hero-visual{order:2}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .nav-links{display:none}
  .nav-toggle{display:inline-block}
  .mobile-menu[data-open="true"]{display:flex}
  .feature-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .device{width:280px;height:560px}
  .device-screen{padding:48px 14px 18px}
}

/* Focus states */
a:focus-visible, button:focus-visible, summary:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;
}