#site-header{
  position:sticky;
  top:0;
  z-index:60;
  display:block;
  background:var(--yellow);
  min-height:72px;
}

.site-header{
  position:relative;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.5rem;
  padding:.75rem 1rem;
  background:var(--yellow);
  border-bottom:2px solid rgba(0,0,0,.06);
}

.brand{
  display:flex;
  align-items:center;
  gap:.6rem;
  text-decoration:none;
  color:var(--dark);
  font-weight:600;
}

.logo{
  width:36px;
  height:36px;
  object-fit:contain;
}

.nav-toggle{
  font-size:1.5rem;
  background:var(--dark);
  color:#fff;
  border:0;
  border-radius:10px;
  padding:.35rem .7rem;
  cursor:pointer;
}

.nav{
  display:none;
  flex-direction:column;
  gap:.4rem;
  position:absolute;
  top:calc(100% + .5rem);
  left:1rem;
  right:1rem;
  padding:.75rem;
  background:#fff;
  border-radius:12px;
  box-shadow:0 16px 24px rgba(0,0,0,.12);
}

.site-header.menu-open .nav{
  display:flex;
}

.nav a{
  text-decoration:none;
  color:var(--dark);
  padding:.6rem .8rem;
  border-radius:8px;
  font-weight:600;
  transition:background .2s ease,color .2s ease;
}

.nav a.active,
.nav a:hover{
  background:var(--green);
  color:#fff;
}

@media (min-width:780px){

  .nav{
    position:static;
    display:flex;
    flex-direction:row;
    align-items:center;
    gap:.8rem;
    padding:0;
    background:transparent;
    box-shadow:none;
  }

  .nav a{
    padding:.5rem .7rem;
    color:var(--dark);
  }

  .nav a.active,
  .nav a:hover{
    background:rgba(0,0,0,.08);
    color:var(--dark);
  }

  .nav-toggle{
    display:none;
  }
}