/* Filter chips: catalog of tests, articles, education */

.posts-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0 0 1.75rem;
}

.posts-filter__btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text);
  text-decoration: none;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

[data-theme="dark"] .posts-filter__btn {
  color: var(--color-text);
  background: var(--color-surface);
  border-color: var(--color-line);
}

.posts-filter__btn:hover {
  color: var(--color-accent-hover);
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  box-shadow: var(--shadow-soft);
}

.posts-filter__btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.posts-filter__btn.is-active {
  color: var(--color-on-accent);
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: none;
  font-weight: 600;
}

.posts-filter__btn.is-active:hover {
  color: var(--color-on-accent);
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

[data-theme="dark"] .posts-filter__btn.is-active,
[data-theme="dark"] .posts-filter__btn.is-active:hover {
  color: var(--color-on-accent);
}