/* Premium navigation: compact motion, clear hierarchy and a lighter dropdown surface. */
.header{
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.header.is-scrolled{
  background:rgba(255,255,255,.985);
  border-bottom-color:rgba(199,215,225,.9);
  box-shadow:0 12px 34px rgba(4,25,43,.09);
}
.modern-nav-group{
  position:relative;
  min-width:0;
}
.modern-nav-heading{
  position:relative;
  display:flex;
  align-items:center;
}
.modern-nav-heading::after{
  content:"";
  position:absolute;
  top:100%;
  left:0;
  right:0;
  height:15px;
}

/* Top-level links */
.nav>.modern-nav-group>a,
.modern-nav-heading>a{
  position:relative;
  z-index:1;
  padding-left:13px;
  padding-right:8px;
  color:#24394d;
  transition:color .25s ease,transform .25s ease;
}
.nav>.modern-nav-group>a{padding-right:13px}
.nav>.modern-nav-group>a::before,
.modern-nav-heading>a::before{
  content:"";
  position:absolute;
  z-index:-1;
  left:5px;
  right:5px;
  top:22px;
  bottom:17px;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(226,29,43,.075),rgba(19,140,200,.065));
  opacity:0;
  transform:scale(.88);
  transition:opacity .25s ease,transform .3s cubic-bezier(.2,.75,.2,1);
}
.nav>.modern-nav-group>a::after,
.modern-nav-heading>a::after{
  left:13px;
  right:13px;
  bottom:17px;
  height:2px;
  border-radius:4px;
  background:linear-gradient(90deg,var(--accent),#ff6973 58%,#198cc8);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .32s cubic-bezier(.2,.75,.2,1);
}
.modern-nav-group:hover>.modern-nav-heading>a,
.modern-nav-group:focus-within>.modern-nav-heading>a,
.modern-nav-group.is-expanded>.modern-nav-heading>a,
.modern-nav-group.active>.modern-nav-heading>a,
.nav>.modern-nav-group:hover>a,
.nav>.modern-nav-group:focus-within>a,
.nav>.modern-nav-group.active>a{
  color:#071b2d;
}
.modern-nav-group:hover>.modern-nav-heading>a::before,
.modern-nav-group:focus-within>.modern-nav-heading>a::before,
.modern-nav-group.is-expanded>.modern-nav-heading>a::before,
.nav>.modern-nav-group:hover>a::before,
.nav>.modern-nav-group:focus-within>a::before{
  opacity:1;
  transform:scale(1);
}
.modern-nav-group:hover>.modern-nav-heading>a::after,
.modern-nav-group:focus-within>.modern-nav-heading>a::after,
.modern-nav-group.is-expanded>.modern-nav-heading>a::after,
.modern-nav-group.active>.modern-nav-heading>a::after,
.nav>.modern-nav-group:hover>a::after,
.nav>.modern-nav-group:focus-within>a::after,
.nav>.modern-nav-group.active>a::after{
  transform:scaleX(1);
}

/* Chevron control */
.modern-nav-toggle{
  position:relative;
  z-index:2;
  display:grid;
  place-items:center;
  min-width:31px;
  min-height:42px;
  margin-left:-5px;
  padding:0;
  color:#607485;
  background:transparent;
  border:0;
  border-radius:50%;
  cursor:pointer;
  transition:color .25s ease,background .25s ease,transform .25s ease;
}
.modern-nav-toggle span{
  display:block;
  width:7px;
  height:7px;
  margin-top:-4px;
  border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;
  transform:rotate(45deg);
  transition:transform .32s cubic-bezier(.2,.75,.2,1),margin .32s ease;
}
.modern-nav-toggle:hover,
.modern-nav-toggle:focus-visible,
.modern-nav-group.is-expanded .modern-nav-toggle{
  color:#e21d2b;
  background:rgba(226,29,43,.07);
}
.modern-nav-group.is-expanded .modern-nav-toggle span,
.modern-nav-group:focus-within .modern-nav-toggle span{
  margin-top:3px;
  transform:rotate(225deg);
}
.modern-nav-toggle:focus-visible{
  outline:2px solid rgba(19,140,200,.65);
  outline-offset:2px;
}

/* Dropdown surface */
.modern-submenu{
  display:grid;
  gap:3px;
  position:absolute;
  top:calc(100% + 9px);
  left:0;
  width:360px;
  max-width:calc(100vw - 40px);
  padding:12px;
  overflow:hidden;
  visibility:hidden;
  opacity:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 100% 0,rgba(19,140,200,.09),transparent 32%),
    rgba(252,254,255,.985);
  border:1px solid rgba(199,216,226,.92);
  border-radius:6px 20px 20px 20px;
  box-shadow:0 26px 64px rgba(4,25,43,.18),0 4px 12px rgba(4,25,43,.06);
  backdrop-filter:blur(18px);
  transform:translateY(12px) scale(.97);
  transform-origin:top left;
  transition:opacity .22s ease,transform .32s cubic-bezier(.2,.78,.2,1),visibility 0s linear .32s;
  z-index:100;
}
.modern-submenu::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--accent),#ff6570 44%,#168bc5 78%,transparent);
}
.modern-nav-group:nth-last-child(-n+2)>.modern-submenu{
  left:auto;
  right:0;
  transform-origin:top right;
}
.modern-nav-group.is-expanded>.modern-submenu,
.modern-nav-group:focus-within>.modern-submenu{
  visibility:visible;
  opacity:1;
  pointer-events:auto;
  transform:translateY(0) scale(1);
  transition-delay:0s;
}
.nav .modern-submenu a{
  position:relative;
  display:flex;
  align-items:center;
  min-height:47px;
  padding:11px 52px 11px 15px;
  overflow:hidden;
  color:#31475b;
  font-size:.9375rem;
  font-weight:700;
  line-height:1.42;
  white-space:normal;
  border:1px solid transparent;
  border-radius:11px;
  opacity:0;
  transform:translateX(-8px);
  transition:opacity .22s ease,transform .28s ease,color .22s ease,background .22s ease,border-color .22s ease;
}
.nav .modern-submenu a::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  bottom:10px;
  width:3px;
  border-radius:4px;
  background:linear-gradient(var(--accent),#168bc5);
  opacity:0;
  transform:scaleY(.35);
  transition:opacity .22s ease,transform .26s ease;
}
.nav .modern-submenu a::after{
  content:"→";
  display:grid;
  place-items:center;
  position:absolute;
  left:auto;
  right:12px;
  top:50%;
  width:28px;
  height:28px;
  color:#5d7486;
  background:rgba(238,245,249,.78);
  border:1px solid rgba(190,210,222,.78);
  border-radius:50%;
  opacity:0;
  pointer-events:none;
  transform:translate(-4px,-50%);
  transition:opacity .22s ease,transform .26s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.modern-nav-group.is-expanded>.modern-submenu a,
.modern-nav-group:focus-within>.modern-submenu a{
  opacity:1;
  transform:translateX(0);
}
.modern-submenu a:nth-child(2){transition-delay:.025s}
.modern-submenu a:nth-child(3){transition-delay:.05s}
.modern-submenu a:nth-child(4){transition-delay:.075s}
.modern-submenu a:nth-child(5){transition-delay:.1s}
.modern-submenu a:nth-child(6){transition-delay:.125s}
.nav .modern-submenu a:hover,
.nav .modern-submenu a:focus-visible{
  color:#071b2d;
  background:linear-gradient(90deg,rgba(226,29,43,.055),rgba(19,140,200,.06));
  border-color:rgba(199,216,226,.72);
  outline:0;
}
.nav .modern-submenu a:hover::before,
.nav .modern-submenu a:focus-visible::before{
  opacity:1;
  transform:scaleY(1);
}
.nav .modern-submenu a:hover::after,
.nav .modern-submenu a:focus-visible::after{
  opacity:1;
  color:#0b658f;
  background:linear-gradient(135deg,rgba(226,29,43,.09),rgba(19,140,200,.13));
  border-color:rgba(19,140,200,.28);
  transform:translate(0,-50%);
}

@media(hover:hover) and (min-width:1251px){
  .modern-nav-group:hover>.modern-submenu{
    visibility:visible;
    opacity:1;
    pointer-events:auto;
    transform:translateY(0) scale(1);
    transition-delay:0s;
  }
  .modern-nav-group:hover>.modern-submenu a{
    opacity:1;
    transform:translateX(0);
  }
}

@media(max-width:1250px){
  .header{position:sticky}
  .nav.is-open{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:block;
    width:100%;
    max-height:calc(100vh - 82px);
    padding:10px max(24px,calc((100% - var(--page))/2)) 18px;
    overflow:auto;
    background:rgba(255,255,255,.99);
    border-top:1px solid #e1e8ed;
    box-shadow:0 24px 50px rgba(4,25,43,.14);
    backdrop-filter:blur(18px);
  }
  .modern-nav-group{border-bottom:1px solid #e6edf1}
  .modern-nav-heading{justify-content:space-between}
  .modern-nav-heading::after{display:none}
  .nav .modern-nav-group>a,
  .modern-nav-heading>a{
    display:block;
    flex:1;
    padding:15px 12px;
    font-size:1rem;
  }
  .nav .modern-nav-group>a::before,
  .modern-nav-heading>a::before{inset:6px 0;border-radius:10px}
  .nav .modern-nav-group>a::after,
  .modern-nav-heading>a::after{display:none}
  .modern-nav-toggle{min-width:48px;min-height:48px;margin:0}
  .modern-submenu,
  .modern-nav-group:nth-last-child(-n+2)>.modern-submenu{
    position:static;
    display:grid;
    width:100%;
    max-width:none;
    max-height:0;
    gap:2px;
    margin:0;
    padding:0 8px;
    visibility:hidden;
    opacity:0;
    overflow:hidden;
    pointer-events:none;
    background:#f4f8fa;
    border:0;
    border-radius:12px;
    box-shadow:none;
    transform:none;
    transition:max-height .36s ease,opacity .22s ease,padding .32s ease,margin .32s ease,visibility 0s linear .36s;
  }
  .modern-submenu::before{display:none}
  .modern-nav-group.is-expanded>.modern-submenu,
  .modern-nav-group:focus-within>.modern-submenu{
    max-height:560px;
    margin:0 0 10px;
    padding:7px 8px 9px;
    visibility:visible;
    opacity:1;
    pointer-events:auto;
    transform:none;
    transition-delay:0s;
  }
  .nav .modern-submenu a{min-height:44px;padding:10px 48px 10px 13px;font-size:.9375rem}
}

@media(prefers-reduced-motion:reduce){
  .header,
  .nav a,
  .nav a::before,
  .nav a::after,
  .modern-nav-toggle,
  .modern-nav-toggle span,
  .modern-submenu,
  .modern-submenu a,
  .modern-submenu a::before,
  .modern-submenu a::after{transition:none!important}
}