/* トリットリ連邦 共通ヘッダー v1 */
.federal-header{
  position:relative;
  z-index:30;
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  min-height:108px;
  padding:10px 20px;
}

.federal-header-overlay{
  position:absolute;
  top:0;
  left:0;
}

.federal-header-overlay::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(
    to bottom,
    rgba(255,250,240,.88) 0%,
    rgba(255,250,240,.48) 62%,
    rgba(255,250,240,0) 100%
  );
  pointer-events:none;
}

.federal-header-solid{
  border-bottom:1px solid #ead8bc;
  background:#fffaf0;
  box-shadow:0 8px 24px rgba(74,48,27,.05);
}

.federal-brand{
  display:block;
  width:clamp(210px,22vw,270px);
  line-height:0;
  text-decoration:none;
  transition:transform .2s ease;
}

.federal-brand:hover{
  transform:translateY(-1px);
}

.federal-brand:focus-visible{
  outline:3px solid #c94c35;
  outline-offset:4px;
  border-radius:10px;
}

.federal-brand img{
  display:block;
  width:100%;
  height:auto;
  filter:drop-shadow(0 4px 8px rgba(55,35,17,.12));
}

@media (max-width:720px){
  .federal-header{
    min-height:92px;
    padding:8px 12px;
  }

  .federal-brand{
    width:190px;
  }
}

@media (prefers-reduced-motion:reduce){
  .federal-brand{
    transition:none;
  }
}