.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) clamp(1rem, 5vw, 2.5rem);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-ivory);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.app-brand-wordmark {
  display: block;
  height: 2.75rem;
  width: auto;
}

.app-tagline {
  color: var(--color-wood-mid);
  font-family: var(--font-serif);
  font-style: italic;
}

.app-header-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-inline-start: auto;
}

.app-header-auth-slot {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 600;
}

.app-sidebar-toggle {
  display: none;
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-2) var(--space-3);
  background: var(--color-ivory);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  font-weight: 600;
}

.language-selector {
  display: flex;
  align-items: center;
}

.language-selector select {
  min-height: 36px;
  padding: 0.2rem 1.5rem 0.2rem 0.4rem;
  border: 1px solid var(--color-wood-mid);
  border-radius: var(--radius-sm);
  background: white;
  font: inherit;
  font-size: 0.85rem;
}

@media (max-width: 39.9375rem) {
  .app-tagline {
    display: none;
  }
}

@media (max-width: 59.9375rem) {
  .app-sidebar-toggle {
    display: inline-block;
  }
}