#mainNav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 64px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: background .3s;
  box-sizing: border-box;
}

#mainNav .nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

#mainNav .nav-logo-img {
  height: 40px;
  width: auto;
  display: block;
}

#mainNav .nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#mainNav .nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: #64748b;
  text-decoration: none;
  transition: color .2s;
}

#mainNav .nav-links a:hover { color: #0ea5e9; }

#mainNav .nav-cta {
  background: #0c4a6e !important;
  color: #fff !important;
  padding: 8px 18px !important;
  border-radius: 6px !important;
  font-weight: 500 !important;
}

#mainNav .nav-cta:hover { background: #075985 !important; }

#mainNav .nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#mainNav .nav-lang-dropdown {
  position: relative;
}

#mainNav .nav-lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid rgba(0,0,0,.15);
  border-radius: 20px;
  padding: 5px 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: #1a1a2e;
  transition: background .2s;
  white-space: nowrap;
}

#mainNav .nav-lang-btn:hover { background: rgba(0,0,0,.06); }

#mainNav .lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: #fff;
  border: 1px solid rgba(0,0,0,.1);
  border-radius: 10px;
  padding: 6px;
  min-width: 130px;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  z-index: 9999;
  list-style: none;
  margin: 0;
}

#mainNav .lang-menu.open { display: block; }

#mainNav .lang-menu li {
  list-style: none;
  padding: 0;
  margin: 0;
}

#mainNav .lang-menu li button {
  width: 100%;
  background: none;
  border: none;
  padding: 8px 12px;
  text-align: left;
  cursor: pointer;
  font-size: 13px;
  border-radius: 6px;
  color: #1a1a2e;
  display: block;
}

#mainNav .lang-menu li button:hover { background: rgba(0,100,200,.08); }

#mainNav .nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

#mainNav .nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #0c4a6e;
  border-radius: 2px;
  transition: all .3s;
}

#mainNav .nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#mainNav .nav-hamburger.open span:nth-child(2) { opacity: 0; }
#mainNav .nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#mainNav .nav-lang-item {
  list-style: none;
  display: none;
}

@media (max-width: 768px) {
  #mainNav {
    padding: 0 20px;
    height: 60px;
  }

  #mainNav .nav-links {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0,0,0,0.08);
    z-index: 99;
  }

  #mainNav .nav-links.open { display: flex; }

  #mainNav .nav-links a {
    padding: 14px 24px;
    font-size: 15px;
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  #mainNav .nav-links .nav-cta {
    margin: 8px 24px 0;
    display: inline-block;
    width: auto !important;
  }

  #mainNav .nav-lang-item {
    display: list-item;
    padding: 4px 16px;
  }

  #mainNav .nav-right .nav-lang-dropdown {
    display: none;
  }

  #mainNav .nav-hamburger {
    display: flex;
    flex-direction: column;
  }
}