/* =========================================================
   NAVIGATION — floating, blurred, mega menu
   ========================================================= */

#progress-bar{
  position:fixed; top:0; left:0; height:2.5px; width:0%;
  background:linear-gradient(90deg,var(--teal),var(--gold));
  z-index:1000;
  transition:width 0.1s linear;
}

.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:900;
  padding-top:20px;
  transition:padding var(--dur-med) var(--ease-premium);
}
.site-header.is-scrolled{ padding-top:10px; }

.nav-shell{
  max-width:1360px;
  margin:0 auto;
  padding:0 var(--gutter);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 22px;
  border-radius:999px;
  background:rgba(250,251,252,0.7);
  border:1px solid rgba(11,31,58,0.08);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 1px 0 rgba(11,31,58,0.03);
  transition:background var(--dur-med) var(--ease-premium), box-shadow var(--dur-med) var(--ease-premium), padding var(--dur-med) var(--ease-premium);
}
.is-scrolled .nav-inner{
  padding:9px 18px;
  background:rgba(250,251,252,0.92);
  box-shadow:0 18px 40px -24px rgba(11,31,58,0.35);
}

.brand{
  display:flex; align-items:center;
  color:var(--navy);
}
.brand-logo-only{ display:inline-flex; }
.brand-logo{
  height:46px; width:auto; display:block; object-fit:contain;
}
.footer-logo{ height:58px; }
@media (max-width:560px){
  .brand-logo{ height:38px; }
}

.nav-primary{
  display:flex; align-items:center; gap:2px;
}
.nav-item{ position:relative; }
.nav-link{
  display:flex; align-items:center; gap:6px;
  padding:10px 16px;
  font-family:var(--font-mono);
  font-size:0.83rem;
  font-weight:500;
  color:var(--navy);
  border-radius:999px;
  transition:background var(--dur-fast), color var(--dur-fast);
}
.nav-link:hover, .nav-item.is-open .nav-link{ background:rgba(11,31,58,0.06); }
.nav-link svg{ width:13px; height:13px; transition:transform var(--dur-fast) var(--ease-premium); opacity:0.6; }
.nav-item.is-open .nav-link svg{ transform:rotate(180deg); }

.nav-actions{ display:flex; align-items:center; gap:10px; }
.nav-cta{ padding:0.75em 1.5em; }

.nav-toggle{
  display:none;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid rgba(11,31,58,0.14);
  background:transparent;
  align-items:center; justify-content:center;
  flex-shrink:0;
}
.nav-toggle span{
  position:relative; width:16px; height:10px; display:block;
}
.nav-toggle span::before, .nav-toggle span::after{
  content:''; position:absolute; left:0; width:100%; height:1.4px; background:var(--navy);
  transition:transform var(--dur-fast) var(--ease-premium), top var(--dur-fast) var(--ease-premium);
}
.nav-toggle span::before{ top:0; }
.nav-toggle span::after{ top:9px; }
.menu-open .nav-toggle span::before{ top:4.5px; transform:rotate(45deg); }
.menu-open .nav-toggle span::after{ top:4.5px; transform:rotate(-45deg); }

/* ---------- Mega panel (desktop) ---------- */
.mega{
  position:fixed;
  top:0; left:0; /* left/top set dynamically by JS, clamped to viewport */
  width:min(880px, calc(100vw - 2.5rem));
  background:rgba(250,251,252,0.98);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:0 40px 80px -30px rgba(7,22,48,0.35);
  padding:2.1rem;
  display:grid;
  grid-template-columns:1.1fr 1.1fr 0.9fr;
  gap:2rem;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translateY(10px);
  transition:opacity var(--dur-fast) var(--ease-premium), transform var(--dur-fast) var(--ease-premium), visibility 0s linear var(--dur-fast);
  z-index:50;
}
.nav-item.is-open .mega{
  opacity:1; visibility:visible; pointer-events:auto;
  transform:translateY(0);
  transition:opacity var(--dur-fast) var(--ease-premium), transform var(--dur-fast) var(--ease-premium), visibility 0s;
}
.mega-col-title{
  font-family:var(--font-mono);
  font-size:0.68rem; text-transform:uppercase; letter-spacing:0.12em;
  color:var(--slate); margin-bottom:0.9rem; display:block;
}
.mega-link{
  display:flex; align-items:flex-start; gap:10px;
  padding:9px 10px; border-radius:10px;
  margin:0 -10px;
  transition:background var(--dur-fast);
}
.mega-link:hover{ background:var(--soft-gray); }
.mega-link-icon{
  width:30px; height:30px; border-radius:8px; flex-shrink:0;
  background:#fff; border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--teal);
}
.mega-link-icon svg{ width:15px; height:15px; }
.mega-link-title{ font-size:0.87rem; font-weight:600; color:var(--navy); display:block; }
.mega-link-sub{ font-size:0.76rem; color:var(--slate); display:block; margin-top:1px; }

.mega-feature{
  border-radius:16px;
  padding:1.4rem;
  background:linear-gradient(160deg,var(--navy),var(--navy-soft));
  color:#fff;
  display:flex; flex-direction:column; justify-content:space-between;
  min-height:200px;
  position:relative;
  overflow:hidden;
}
.mega-feature::after{
  content:'';
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.06) 1px,transparent 1px);
  background-size:20px 20px;
  mask-image:linear-gradient(to top, black, transparent 70%);
}
.mega-feature-eyebrow{ font-family:var(--font-mono); font-size:0.66rem; letter-spacing:0.12em; text-transform:uppercase; color:var(--gold-bright); position:relative; }
.mega-feature-title{ font-family:var(--font-display); font-size:1.2rem; margin:0.5rem 0 0.75rem; position:relative; color:#fff; }
.mega-feature-link{ font-family:var(--font-mono); font-size:0.78rem; display:inline-flex; align-items:center; gap:6px; position:relative; color:var(--gold-bright); }

/* ---------- Mobile mega ---------- */
.mobile-menu{
  position:fixed; inset:0; z-index:800;
  background:var(--navy-deep);
  display:flex; flex-direction:column;
  transform:translateY(-100%);
  transition:transform 0.6s var(--ease-premium);
  overflow:hidden;
}
.menu-open .mobile-menu{ transform:translateY(0); }
.mobile-menu-inner{
  flex:1; overflow-y:auto;
  padding:110px var(--gutter) 40px;
}
.mobile-accordion{ border-bottom:1px solid rgba(255,255,255,0.1); }
.mobile-accordion:first-child{ border-top:1px solid rgba(255,255,255,0.1); }
.mobile-accordion-trigger{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  background:none; border:0; color:#fff;
  padding:1.35rem 0;
  font-family:var(--font-display); font-size:1.7rem; font-weight:500;
}
.mobile-accordion-trigger svg{ width:18px; height:18px; color:var(--gold-bright); transition:transform var(--dur-fast) var(--ease-premium); flex-shrink:0; }
.mobile-accordion.is-open .mobile-accordion-trigger svg{ transform:rotate(135deg); }
.mobile-accordion-panel{
  max-height:0; overflow:hidden;
  transition:max-height 0.5s var(--ease-premium);
}
.mobile-accordion-panel-inner{ padding:0 0 1.6rem; display:flex; flex-direction:column; gap:0.6rem; }
.mobile-accordion-panel-inner a{
  font-family:var(--font-mono); font-size:0.92rem; color:rgba(255,255,255,0.72);
  padding:0.5rem 0;
}
.mobile-accordion-panel-inner a:hover{ color:var(--gold-bright); }
.mobile-menu-footer{
  padding:1.6rem var(--gutter) 2.2rem;
  border-top:1px solid rgba(255,255,255,0.1);
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1rem;
}
.mobile-menu-footer a{ font-family:var(--font-mono); font-size:0.8rem; color:rgba(255,255,255,0.55); }

@media (max-width: 1100px){
  .nav-primary{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-cta.desktop-only{ display:none; }
}
@media (min-width:1101px){
  .mobile-menu{ display:none; }
}