:root{
    --navy:#0F1A2E; --navy2:#16243d; --cyan:#3EA5FF; --cyan-d:#1f86e0;
    --ink:#26303f; --muted:#5b6676; --line:#e6ebf1; --bg:#f6f8fb; --white:#ffffff;
    --head:"Futura","Century Gothic","Avenir Next","Trebuchet MS",system-ui,sans-serif;
    --body:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--body);color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
  h1,h2,h3{font-family:var(--head);color:var(--navy);font-weight:600;line-height:1.15;letter-spacing:.3px}
  a{color:var(--cyan-d);text-decoration:none}
  .wrap{max-width:1140px;margin:0 auto;padding:0 24px}
  .btn{display:inline-block;padding:13px 26px;border-radius:8px;font-weight:600;font-size:15px;font-family:var(--head);letter-spacing:.4px;cursor:pointer;transition:.15s}
  .btn-primary{background:var(--cyan);color:#06223f}
  .btn-primary:hover{background:#5cb4ff}
  .btn-ghost{border:1.5px solid rgba(255,255,255,.5);color:#fff}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
  .btn-dark{background:var(--navy);color:#fff}.btn-dark:hover{background:var(--navy2)}

  /* Header */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
  .nav img{height:34px}
  .nav nav a{color:var(--ink);font-weight:500;margin:0 16px;font-size:15px}
  .nav nav a:hover{color:var(--cyan-d)}
  .nav .cta{display:flex;align-items:center;gap:18px}
  @media(max-width:760px){.nav nav{display:none}}

  /* Mobile menu (no JS: a hidden checkbox drives the panel) */
  .mnav-btn{display:none;font-size:24px;line-height:1;color:var(--navy);cursor:pointer;padding:2px 6px;user-select:none}
  @media(max-width:760px){
    .nav nav{display:none}
    .mnav-btn{display:inline-block}
    #mnav:checked ~ .wrap nav{display:block;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);padding:6px 24px 16px;box-shadow:0 10px 24px rgba(16,26,46,.10)}
    #mnav:checked ~ .wrap nav a{display:block;margin:0;padding:12px 0;border-bottom:1px solid var(--line);font-size:16px}
    #mnav:checked ~ .wrap nav a:last-child{border-bottom:0}
  }

  /* Hero */
  .hero{background:radial-gradient(1200px 500px at 75% -10%,#1d3358 0,var(--navy) 55%);color:#dfe7f2;padding:96px 0 104px;position:relative;overflow:hidden}
  .hero .eyebrow{color:var(--cyan);font-family:var(--head);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:18px}
  .hero h1{color:#fff;font-size:46px;max-width:880px;margin-bottom:22px}
  .hero p.sub{font-size:20px;color:#aebbcf;max-width:760px;margin-bottom:34px}
  .hero .actions{display:flex;gap:14px;flex-wrap:wrap}
  .hero .pulse{position:absolute;right:-60px;top:40px;opacity:.13;width:520px}
  @media(max-width:760px){.hero h1{font-size:33px}.hero p.sub{font-size:17px}}

  /* Sections */
  section.block{padding:84px 0}
  .alt{background:var(--bg)}
  .lead{max-width:720px;margin-bottom:50px}
  .lead .tag{color:var(--cyan-d);font-family:var(--head);font-size:13px;letter-spacing:1.5px;text-transform:uppercase;font-weight:600}
  .lead h2{font-size:34px;margin:10px 0 14px}
  .lead p{font-size:18px;color:var(--muted)}
  h2{font-size:34px}

  .grid{display:grid;gap:24px}
  .g3{grid-template-columns:repeat(3,1fr)}
  .g2{grid-template-columns:repeat(2,1fr)}
  @media(max-width:860px){.g3,.g2{grid-template-columns:1fr}}
  .card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 1px 2px rgba(16,26,46,.04)}
  .alt .card{background:#fff}
  .card .ic{width:46px;height:46px;border-radius:10px;background:rgba(62,165,255,.12);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:22px}
  .card h3{font-size:19px;margin-bottom:8px}
  .card p{color:var(--muted);font-size:15px}
  .card ul{list-style:none;margin:0 0 20px}
  .card li{padding:6px 0 6px 26px;position:relative;font-size:15px;color:var(--ink)}
  .card li:before{content:"";position:absolute;left:0;top:12px;width:12px;height:12px;border:2px solid var(--cyan);border-radius:50%}

  /* Split */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
  @media(max-width:860px){.split{grid-template-columns:1fr;gap:32px}}
  .split ul{list-style:none;margin-top:18px}
  .split li{padding:8px 0 8px 30px;position:relative;color:var(--ink)}
  .split li:before{content:"";position:absolute;left:0;top:14px;width:14px;height:14px;border:2px solid var(--cyan);border-radius:50%}
  .panel{background:var(--navy);border-radius:18px;padding:34px;color:#cdd9e8}
  .panel h4{color:#fff;font-family:var(--head);font-size:15px;letter-spacing:1px;text-transform:uppercase;margin-bottom:18px}
  .row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px}
  .row:last-child{border:0}
  .row .ok{color:#3fb950;font-weight:700}.row .gap{color:#f0883e;font-weight:700}

  /* CTA band */
  .ctaband{background:linear-gradient(100deg,var(--navy),#1c3357);color:#fff;border-radius:20px;padding:54px;text-align:center;margin:0 auto}
  .ctaband h2{color:#fff;font-size:30px;margin-bottom:12px}
  .ctaband p{color:#aebbcf;max-width:620px;margin:0 auto 26px;font-size:17px}

  /* Footer */
  footer{background:var(--navy);color:#9fb0c8;padding:54px 0 30px;font-size:14px}
  footer img{height:30px;margin-bottom:16px}
  .fgrid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;margin-bottom:30px}
  footer a{color:#cdd9e8}
  footer .legal{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;color:#6f819b;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

  /* Landing-page additions (subpages only; index.html keeps its own inline copy) */
  .crumb{font-size:13px;color:#8fa2ba;margin-bottom:16px}
  .crumb a{color:#8fa2ba}
  .prose{max-width:820px}
  .prose h2{font-size:30px;margin:0 0 14px}
  .prose h3{font-size:20px;margin:26px 0 8px}
  .prose p{color:var(--muted);font-size:17px;margin-bottom:16px}
  .prose ul{list-style:none;margin:0 0 22px}
  .prose li{padding:8px 0 8px 30px;position:relative;color:var(--ink);font-size:16px}
  .prose li:before{content:"";position:absolute;left:0;top:15px;width:13px;height:13px;border:2px solid var(--cyan);border-radius:50%}
  .prose strong{color:var(--ink)}
  .note{border-left:3px solid var(--cyan);background:rgba(62,165,255,.06);padding:18px 22px;border-radius:0 10px 10px 0;margin:0 0 24px}
  .note p{margin:0;font-size:16px}
  .related{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
  .related a{border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:14px;color:var(--ink);background:#fff}
  .related a:hover{border-color:var(--cyan);color:var(--cyan-d)}