.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 5vw;
  position: sticky;
  top: 0;
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.logo-group {
  display: flex;
  flex-direction: column;
}

.site-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.tagline {
  font-size: 0.9rem;
  color: var(--muted);
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
}

nav a {
  font-weight: 500;
  padding: 0.4rem 0.6rem;
  border-radius: 999px;
}

nav a:focus-visible,
nav a:hover {
  background: rgba(26, 153, 136, 0.1);
}

.language-toggle {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.language-toggle button {
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--text);
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  font-weight: 500;
  cursor: pointer;
}

.language-toggle button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}

.language-toggle button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--accent);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
}

@media (max-width: 768px) {
  .language-toggle {
    width: 100%;
    justify-content: flex-end;
  }

  nav ul {
    flex-direction: column;
    position: absolute;
    right: 1rem;
    top: 4rem;
    background: var(--card);
    padding: 1rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    display: none;
  }

  nav ul.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }
}