.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.app-header__brand {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.1rem;
}

.app-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}