.directory-intro,
.directory-tools {
  max-width: 900px;
  margin: 0 auto 1rem;
  text-align: center;
}
.directory-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .25rem 1.25rem;
  margin-bottom: 2.5rem;
}
.directory-tools a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.directory-layout {
  max-width: 1160px;
  margin: 0 auto;
}
.directory-layout.is-filterable {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  align-items: start;
  gap: 2.5rem;
}
.directory-sidebar {
  position: sticky;
  top: 90px;
  padding-right: 1rem;
  border-right: 1px solid var(--border-color);
}
.directory-sidebar-label {
  margin: 0 0 1rem;
  color: var(--text-secondary);
  font-size: .8rem;
}
.directory-sidebar button {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: .75rem;
  margin-bottom: .35rem;
  border: 0;
  border-left: 3px solid transparent;
  background: transparent;
  color: var(--text-primary);
  text-align: left;
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
}
.directory-sidebar button:hover {
  background: var(--bg-card);
}
.directory-sidebar button[aria-pressed="true"] {
  border-left-color: var(--text-primary);
  background: var(--bg-card);
  font-weight: 600;
}
.directory-sidebar button:focus-visible,
.directory-tools a:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 3px;
}
.directory-results { min-width: 0; }
.directory-results .articles-grid { max-width: none; }
.directory-results .article-card[hidden],
.directory-sidebar[hidden] { display: none; }
.directory-status:empty { display: none; }
.directory-status {
  color: var(--text-secondary);
  font-size: .85rem;
  margin-bottom: 1rem;
}
@media (max-width: 768px) {
  .directory-layout.is-filterable { grid-template-columns: 1fr; gap: 1.25rem; }
  .directory-sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    padding: 0 0 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
  }
  .directory-sidebar-label { width: 100%; margin-bottom: .25rem; }
  .directory-sidebar button { width: auto; margin: 0; padding: .6rem .75rem; }
  .directory-tools a { padding-block: .5rem; }
}