header {
  position: fixed;
  top: 0;
  width: 100%;
  background: #000;
  z-index: 1000;
}

.header-inner {
  max-width: 1200px;
  margin: auto;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  width: 120px;
  height: 120px;
}

nav {
  display: flex;
  gap: 25px;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  color: #3A66A3;
}

.lang-switcher {
  display: flex;
  gap: 8px;
}

.lang-switcher button {
  background: transparent;
  border: 2px solid #3A66A3;
  color: #fff;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s;
}

.lang-switcher button.active {
  background: #3A66A3;
}