/* Shared app-header geometry; individual pages keep their own actions and skins. */
.tabmarkdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  margin: 0;
  padding: 6px 12px;
  line-height: 1.2;
}

.tabmarkdown-header--viewport {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding: calc(6px + env(safe-area-inset-top, 0px)) calc(12px + env(safe-area-inset-right, 0px)) 6px calc(12px + env(safe-area-inset-left, 0px));
}

.tabmarkdown-header .tabmarkdown-brand-link {
  color: var(--text);
  font-family: "SF Pro Display", "PingFang SC", "Segoe UI", sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}

.tabmarkdown-header .tabmarkdown-brand-link:hover,
.tabmarkdown-header .tabmarkdown-brand-link:focus-visible {
  color: var(--accent);
}