.site-header{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  gap:1rem;
  padding:1rem clamp(1.2rem,5vw,3rem);
  background:color-mix(in srgb,var(--cream) 82%, transparent);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(72,178,172,.22);
}
.site-header .logo{
  height:clamp(42px,6vw,56px);
  width:auto;
  display:block;
  flex-shrink:0;
}
.site-nav{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  flex:1;
  gap:clamp(.6rem,3vw,2.2rem) clamp(1.1rem,3vw,2.2rem);
}
.site-nav a{
  text-decoration:none;
  color:var(--teal-deep);
  font-size:.92rem;
  font-weight:500;
  letter-spacing:.01em;
  position:relative;
  padding-bottom:2px;
  transition:color .2s;
}
.site-nav a::after{
  content:"";
  position:right;right:0;bottom:-2px;
  width:0;height:2px;background:var(--gold);
  transition:width .25s ease;
}
.site-nav a:hover,
.site-nav a:focus-visible{color:var(--gold);}
.site-nav a:hover::after,
.site-nav a:focus-visible::after{width:100%;}

@media(max-width:560px){
  .site-header{justify-content:center;}
  .site-header .logo{display:none;}
  .site-nav{flex-wrap:wrap;justify-content:center;gap:.9rem 1.1rem;font-size:.85rem;}
}