/* FlagshipX — Core Styles (Dark-first) */
:root{
  --fx-navy-900:#042144; --fx-navy-700:#011D40; --fx-navy-600:#0D4986;
  --fx-cream-100:#F9F4EB; --fx-cream-200:#FAF2EA;
  --fx-toggle-green:#3BE697; --fx-azure-500:#2884CA;
  --fx-slate-700:#2F445F; --fx-steel-500:#5F7288; --fx-air-400:#8AA4AA; --fx-mist-300:#C5C9CB; --fx-ink-000:#FFFFFF;

  --radius-md:12px; --radius-lg:16px; --radius-pill:9999px;
  --shadow-fx:0 6px 24px rgba(12,34,68,.35);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: var(--fx-navy-900);
  color: var(--fx-cream-100);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img{max-width:100%;height:auto}
a{color:var(--fx-azure-500);text-decoration:underline;text-underline-offset:2px}
a:hover{filter:brightness(1.08)}
h1,h2,h3,h4{font-family: Manrope, Inter, system-ui, sans-serif; letter-spacing:-0.01em; margin:0 0 8px}
h1{font-weight:800;font-size: clamp(2rem, 4vw, 3rem); line-height:1.1}
h2{font-weight:800;font-size: clamp(1.5rem, 2.8vw, 2rem)}
h3{font-weight:700;font-size: clamp(1.15rem, 2vw, 1.25rem)}
p{margin:0 0 12px;color:var(--fx-cream-100)}
.section-title{text-align:center;margin-bottom:24px}
.lead{font-size:1.125rem;color:var(--fx-cream-100)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.center{text-align:center}
.mt-12{margin-top:12px}
.mt-24{margin-top:24px}

/* Accessibility */
.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{
  position:fixed;left:16px;top:16px;width:auto;height:auto;padding:8px 12px;
  background:var(--fx-azure-500);color:var(--fx-ink-000);z-index:1000;border-radius:8px;
}
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  background: linear-gradient(0deg, rgba(4,33,68,0.85), rgba(4,33,68,0.85));
  backdrop-filter: saturate(120%) blur(8px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-text{color:var(--fx-cream-100);font-weight:800;letter-spacing:0.2px}
.site-nav ul{display:flex;align-items:center;gap:20px;list-style:none;margin:0;padding:0}
.site-nav a{text-decoration:none;color:var(--fx-cream-100)}
.site-nav a:hover{color:var(--fx-cream-200)}
.nav-cta .btn{padding:8px 14px}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.12);color:var(--fx-cream-100);border-radius:10px;padding:6px 10px}

/* Hero */
.hero{
  background:
    radial-gradient(1200px 600px at 10% 30%, rgba(40,132,202,.12), transparent 60%),
    radial-gradient(1000px 500px at 80% 20%, rgba(59,230,151,.08), transparent 60%),
    var(--fx-navy-900);
  padding:48px 0;
}
.hero-grid{
  display:grid; gap:24px;
  grid-template-columns: 1.15fr;
  align-items:center;
}
.hero-copy .badge{
  display:inline-flex; align-items:center; gap:8px;
  background: rgba(255,255,255,.06); color: var(--fx-cream-200);
  padding:6px 10px; border-radius: 999px; font-size:.8rem; letter-spacing:.3px;
  border:1px solid rgba(255,255,255,.08);
}
.badge .dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--fx-toggle-green);box-shadow:0 0 10px rgba(59,230,151,.8)}
.subhead{color:var(--fx-steel-500);max-width:60ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0 8px}
.micro{font-size:.9rem;color:var(--fx-steel-500)}
.hero-media{display:flex;align-items:center;justify-content:center}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  border-radius:12px; padding:10px 16px; font-weight:600; letter-spacing:.02em;
  text-decoration:none; border:1px solid transparent; cursor:pointer; transition: all .16s ease-out;
  min-height:44px;
}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0)}
.btn:focus-visible{outline:0; box-shadow: 0 0 0 2px var(--fx-azure-500), 0 0 0 4px var(--fx-ink-000)}
.btn-primary{background:var(--fx-navy-600);color:var(--fx-cream-200);box-shadow: var(--shadow-fx)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-secondary{background:transparent;color:var(--fx-cream-100);border-color:var(--fx-azure-500)}
.btn-secondary:hover{background: rgba(40,132,202,.08)}
.btn-sm{padding:8px 12px;min-height:36px}
.btn-lg{padding:12px 18px;min-height:48px}

/* Cards & Sections */
.section{padding:56px 0}
.section.highlight{background: rgba(255,255,255,.03)}
.card-grid{
  display:grid; gap:16px;
  grid-template-columns: repeat(1, minmax(0,1fr));
}
.card{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px; padding:16px;
  box-shadow: var(--shadow-fx);
}
.card p{color:var(--fx-steel-500)}

/* Steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.steps li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:14px}
.step-index{
  display:inline-grid; place-items:center; width:28px; height:28px; border-radius:999px;
  background: var(--fx-toggle-green); color: var(--fx-navy-900); font-weight:700;
}

/* FAQ */
details{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px; padding:14px; margin-bottom:12px
}
details summary{
  cursor:pointer; list-style:none; font-weight:600; display:flex; align-items:center; justify-content:space-between;
}
details[open] .summary-note{color:var(--fx-steel-500)}
.faq-body{color:var(--fx-steel-500);margin-top:8px}

/* Footer */
.site-footer{border-top:1px solid rgba(255,255,255,.08); padding-top:24px; margin-top:24px}
.footer-grid{display:grid; gap:20px; grid-template-columns: 1fr}
.footer-nav{display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap:20px}
.footer-nav h4{margin:0 0 8px}
.footer-nav ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-copy{color:var(--fx-steel-500)}
.footer-bottom{display:flex;align-items:center;justify-content:center;padding:12px 0;color:var(--fx-steel-500);border-top:1px solid rgba(255,255,255,.06);margin-top:16px}

/* Responsive */
@media (min-width: 768px){
  .hero-grid{grid-template-columns: 1.1fr .9fr}
  .card-grid{grid-template-columns: repeat(2, minmax(0,1fr))}
  .footer-grid{grid-template-columns: 1.2fr .8fr}
}
@media (min-width: 1024px){
  .card-grid{grid-template-columns: repeat(4, minmax(0,1fr))}
}

/* Mobile nav */
@media (max-width: 880px){
  .nav-toggle{display:inline-block}
  .site-nav{position:absolute; left:0; right:0; top:64px; background: rgba(4,33,68,.98); transform-origin: top; transform: scaleY(0); opacity:0; transition: .16s ease-out; border-bottom:1px solid rgba(255,255,255,.06)}
  .site-nav.open{transform: scaleY(1); opacity:1}
  .site-nav ul{flex-direction:column; align-items:flex-start; padding:12px}
  .nav-cta{align-self:stretch}
}

/* Motion preferences */
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
}