/* Shared header styling lives in homepage.css; keep the Drive viewer below it. */
.catalog-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}
.catalog-page .site-header { flex: none; }
.catalog-main { flex: 1; min-height: 320px; }
.catalog-viewer { display: block; width: 100%; height: 100%; border: 0; }
.primary-nav > a[aria-current="page"] { color: var(--green); font-weight: 600; }