:root{
  --navy:#0b1f3a;
  --navy-2:#13294b;
  --blue:#2563eb;
  --blue-dark:#1d4ed8;
  --ink:#1a2333;
  --muted:#566074;
  --line:#e3e8f0;
  --bg:#ffffff;
  --bg-alt:#f5f8fc;
  --radius:14px;
  --maxw:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:var(--blue-dark)}
img{max-width:100%}
h1,h2,h3{line-height:1.2;color:var(--navy)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:100}
.skip-link:focus{left:8px;top:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:700}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--navy);color:#fff;font-size:14px;letter-spacing:.5px}
.brand-name{font-size:15px;letter-spacing:.3px}
.main-nav{display:flex;gap:26px;align-items:center}
.main-nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15px}
.main-nav a:hover{color:var(--navy)}
.nav-cta{padding:9px 16px;background:var(--navy);color:#fff!important;border-radius:9px}

/* Hero */
.hero{background:linear-gradient(160deg,#0b1f3a 0%,#13294b 55%,#1b3a6b 100%);color:#fff;padding:84px 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:13px;color:#9fc1ff;margin:0 0 14px}
.hero h1{color:#fff;font-size:clamp(30px,4.4vw,48px);margin:0 0 18px}
.lede{font-size:clamp(17px,2vw,20px);color:#d4e0f5;max-width:36ch;margin:0 0 28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 24px;border-radius:10px;font-weight:600;text-decoration:none;font-size:15px;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#3b76f5}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25)}

/* Hero device illustration */
.hero-panel{display:flex;justify-content:center}
.device-frame{width:230px;height:330px;border-radius:30px;background:#0a1730;border:1px solid rgba(255,255,255,.18);padding:16px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.device-screen{height:100%;border-radius:18px;background:linear-gradient(180deg,#16315c,#0e2147 100%);padding:18px 14px;position:relative;overflow:hidden}
.device-screen .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.4);margin-right:5px}
.screen-bar{height:12px;border-radius:6px;background:rgba(255,255,255,.25);margin:18px 0 10px}
.screen-bar.short{width:55%}
.screen-card{height:54px;border-radius:12px;background:rgba(159,193,255,.22);margin-top:14px}

/* Sections */
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.section h2{font-size:clamp(24px,3vw,32px);margin:0 0 14px}
.section-intro{color:var(--muted);max-width:60ch;margin:0 0 34px;font-size:17px}
.section p{color:var(--ink)}
#about p{max-width:72ch;color:#3b4762}

/* Grids */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:box-shadow .18s ease,transform .18s ease}
.card:hover{box-shadow:0 14px 30px rgba(16,38,76,.10);transform:translateY(-2px)}
.card h3{font-size:18px;margin:0 0 8px}
.card p{color:var(--muted);margin:0}
.feature{padding:24px 26px;border-left:3px solid var(--blue);background:#fff;border-radius:0 var(--radius) var(--radius) 0;box-shadow:0 6px 18px rgba(16,38,76,.05)}
.feature h3{font-size:18px;margin:0 0 8px}
.feature p{color:var(--muted);margin:0}

/* Contact */
.section-contact{background:var(--bg-alt)}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;box-shadow:0 10px 30px rgba(16,38,76,.06)}
.contact-list{margin:0;display:grid;gap:16px}
.contact-list div{display:grid;gap:2px}
.contact-list dt{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
.contact-list dd{margin:0;font-size:16px;color:var(--ink)}

/* Footer */
.site-footer{background:var(--navy);color:#c8d3e6;padding:44px 0}
.footer-inner{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.site-footer a{color:#9fc1ff}
.footer-brand{font-weight:700;color:#fff;margin:0 0 6px;letter-spacing:.3px}
.site-footer p{margin:2px 0;font-size:14px}
.copyright{align-self:flex-end;font-size:13px;color:#8ea2c0}

/* Responsive */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;text-align:left}
  .hero-panel{display:none}
  .grid-3{grid-template-columns:1fr 1fr}
  .main-nav{gap:16px}
}
@media (max-width:600px){
  .hero{padding:56px 0}
  .section{padding:52px 0}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .main-nav a:not(.nav-cta){display:none}
  .contact-card{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}