.site-header{
  position:fixed;top:0;width:100%;
  padding:16px 0;
  background:rgba(255,255,255,0.94);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(0,0,0,0.07);
  z-index:1000;transition:padding var(--transition),box-shadow var(--transition);
}
.site-header.scrolled{padding:10px 0;box-shadow:0 4px 24px rgba(0,0,0,0.08);}
.header-inner{max-width:1280px;margin:0 auto;padding:0 2rem;width:100%;display:flex;align-items:center;justify-content:space-between;gap:2rem;}
.logo-area{flex-shrink:0;}
.logo-area img{height:36px;width:auto;object-fit:contain;}

.nav-container{display:flex;align-items:center;gap:0.25rem;}
.nav{display:flex;align-items:center;gap:0;}
.nav-link{
  font-family:'Outfit',sans-serif;font-size:10px;font-weight:700;
  letter-spacing:0.1em;text-transform:uppercase;
  color:var(--gray);padding:0.5rem 1rem;position:relative;
  transition:color var(--transition);
}
.nav-link::after{content:'';position:absolute;bottom:0;left:1rem;right:1rem;height:1px;background:var(--cyan);transform:scaleX(0);transition:transform var(--transition);}
.nav-link:hover{color:var(--black);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--black);}
.nav-link.active::after{transform:scaleX(1);}

.nav-cta{
  margin-left:1rem;padding:9px 22px;
  font-family:'Outfit',sans-serif;font-size:10px;font-weight:700;
  letter-spacing:0.14em;text-transform:uppercase;
  color:var(--white);background:var(--black);
  border:1px solid var(--black);
  transition:background var(--transition),color var(--transition),border-color var(--transition);
}
.nav-cta:hover{background:var(--cyan);border-color:var(--cyan);}

.nav-dropdown{position:relative;}
.nav-dropdown-toggle{display:flex;align-items:center;gap:6px;}
.dropdown-arrow{font-size:8px;transition:transform var(--transition);opacity:0.5;}
.nav-dropdown-toggle[aria-expanded="true"] .dropdown-arrow{transform:rotate(180deg);}
.nav-dropdown-menu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:220px;
  background:rgba(255,255,255,0.98);
  border:1px solid rgba(0,0,0,0.07);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 16px 48px rgba(0,0,0,0.12);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:all var(--transition);
}
.nav-dropdown-menu.open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-dropdown-item{
  display:block;width:100%;padding:12px 20px;
  font-family:'Outfit',sans-serif;font-size:10px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--gray);text-align:left;border-left:2px solid transparent;
  transition:all var(--transition);
}
.nav-dropdown-item:hover{color:var(--black);border-left-color:var(--cyan);background:var(--off);padding-left:24px;}
.nav-dropdown-item.active{color:var(--black);border-left-color:var(--cyan);}

.language-switcher{display:flex;gap:4px;margin-left:1.5rem;padding-left:1.5rem;border-left:1px solid rgba(0,0,0,0.07);}
.lang-btn{font-family:'Outfit',sans-serif;font-size:11px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;color:var(--gray-lt);padding:4px 6px;transition:color var(--transition);}
.lang-btn:hover,.lang-btn.active{color:var(--black);}
.lang-btn.active{border-bottom:1px solid var(--cyan);}

.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;background:none;border:none;}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--black);transition:all var(--transition);}

@media(max-width:900px){
  .nav-toggle{display:flex;}
  .nav-container{
    display:none;position:fixed;top:68px;left:0;right:0;bottom:0;
    background:rgba(255,255,255,0.98);backdrop-filter:blur(24px);
    flex-direction:column;align-items:flex-start;padding:2rem;gap:0;
    overflow-y:auto;border-top:1px solid rgba(0,0,0,0.07);height:100vh;
  }
  .nav-container.open{display:flex;}
  .nav{flex-direction:column;align-items:flex-start;width:100%;flex:1;}
  .nav-link{font-size:14px;padding:14px 0;width:100%;border-bottom:1px solid rgba(0,0,0,0.07);min-height:48px;display:flex;align-items:center;}
  .nav-link::after{display:none;}
  .nav-dropdown-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:var(--off);max-height:0;overflow:hidden;transition:max-height var(--transition);width:100%;}
  .nav-dropdown-menu.open{max-height:1000px;}
  .nav-dropdown-item{width:100%;min-height:44px;display:flex;align-items:center;}
  .nav-cta{margin:1.5rem 0 0 0;width:100%;min-height:48px;display:flex;align-items:center;justify-content:center;}
  .language-switcher{margin:1rem 0 0 0;padding-left:0;border-left:none;}
}