.fe-ribbon{
  background:#181317;
  color:var(--color-text-primary);
  text-align:center;
  padding:0.45rem 1rem;
  font-size:0.7rem;
  letter-spacing:0.06em;
  border-bottom:1px solid var(--color-accent);
}

.fe-header{
  background:var(--color-bg-primary);
  position:sticky;
  top:0;
  z-index:1000;
  border-bottom:1px solid var(--color-border-subtle);
}

.fe-header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:78px;
}

.fe-brand{
  display:flex;
  align-items:center;
  gap:0.75rem;
}

.fe-logo{
  width:44px;
  height:44px;
  object-fit:contain;
}

.fe-brand-text{
  font-family:var(--font-heading);
  font-size:1.45rem;
  letter-spacing:0.035em;
}

.fe-nav-list{
  list-style:none;
  display:flex;
  gap:clamp(0.8rem,1.6vw,1.6rem);
}

.fe-nav-list li{margin:0;padding:0;}

.fe-nav a{
  position:relative;
  font-size:0.72rem;
  font-weight:500;
  letter-spacing:0.1em;
  text-transform:uppercase;
}

.fe-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:100%;
  bottom:-0.5rem;
  height:1px;
  background:var(--color-accent);
  transition:right var(--transition-fast);
}

.fe-nav a:hover::after{right:0}

.fe-nav-toggle{
  display:none;
  width:44px;
  height:44px;
  flex-direction:column;
  justify-content:center;
  gap:5px;
}

.fe-toggle-line{
  height:2px;
  background:var(--color-text-primary);
  width:100%;
}

.fe-mobile-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  z-index:1000;
}

.fe-mobile-nav{
  position:fixed;
  top:0;
  right:0;
  width:85%;
  max-width:360px;
  height:100%;
  background:var(--color-bg-secondary);
  transform:translateX(100%);
  transition:transform var(--transition-fast);
  z-index:1001;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  overscroll-behavior:contain;
}

.fe-mobile-nav.open{
  transform:translateX(0);
}

.fe-mobile-header{
  display:flex;
  justify-content:space-between;
  padding:1rem;
}

.fe-mobile-list{
  list-style:none;
  padding:1rem;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:1rem;
}

.fe-mobile-close{
  font-size:1.5rem;
}

@media(max-width:900px){
  .fe-nav{display:none;}
  .fe-nav-toggle{display:flex;}
}

@media(max-width:600px){
  .fe-ribbon{
    padding:0.45rem 0.75rem;
    font-size:0.75rem;
    line-height:1.4;
  }

  .fe-header-inner{
    min-height:60px;
  }

  .fe-logo{
    width:40px;
    height:40px;
  }

  .fe-brand-text{
    font-size:1.05rem;
  }

  .fe-nav-toggle{
    width:40px;
    height:40px;
    padding:8px;
  }

  .fe-mobile-nav{
    width:min(90%,340px);
  }
}