/* baza-znany — custom styles for knowledge base (UI Kit compatible) */
/* Search */
.search-section { padding: 20px 0; border-bottom: 1px solid var(--line) }
.search-wrap { max-width: 560px; position: relative }
.search-input {
  width: 100%; height: 46px; padding: 0 46px 0 18px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-sm); color: var(--ink);
  font: 400 15px/1 var(--ff); outline: none; transition: border-color .15s
}
.search-input:focus { border-color: var(--accent) }
.search-input::placeholder { color: var(--ink-4) }
.search-icon { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--ink-3); pointer-events: none }

/* Categories */
.categories { padding: 20px 0; border-bottom: 1px solid var(--line) }
.categories ul { display: flex; flex-wrap: wrap; gap: 10px }
.cat-btn {
  padding: 7px 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-sm); color: var(--ink-2); font-size: var(--t-small); font-weight: 500;
  cursor: pointer; transition: all .15s; font-family: var(--ff)
}
.cat-btn:hover, .cat-btn:focus-visible { border-color: var(--accent); color: var(--accent); outline: none }
.cat-btn.active { background: var(--ink); border-color: var(--ink); color: var(--surface) }

/* Articles grid */
.articles-section { max-width: var(--maxw); margin-inline: auto; padding: 40px var(--gutter-sm) }
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(340px,1fr)); gap: 24px }
.article-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .2s
}
.article-card:hover, .article-card:focus-within { border-color: var(--line-2) }
.card-link { display: flex; flex-direction: column; height: 100% }
.card-img {
  height: 160px; background: var(--surface-2);
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden
}
.card-icon { font-size: 2.8rem; opacity: .85; z-index: 1 }
.card-cat-badge {
  position: absolute; top: 12px; right: 12px; background: var(--accent); color: var(--ink);
  padding: 3px 10px; border-radius: var(--r-sm); font: 700 11px/1 var(--ff); letter-spacing: .04em
}
.card-body { padding: 20px; flex-grow: 1; display: flex; flex-direction: column }
.card-meta { display: flex; gap: 14px; margin-bottom: 10px; font-size: 12px; color: var(--ink-3) }
.card-title { font-size: var(--t-h4); font-weight: 500; color: var(--ink); margin-bottom: 10px; line-height: 1.3 }
.card-excerpt { font-size: var(--t-small); color: var(--ink-2); line-height: 1.6; margin-bottom: 14px; flex: 1 }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px }
.tag { font: 500 11px/1 var(--mono); color: var(--ink-3); background: var(--surface-2); padding: 3px 8px; border-radius: var(--r-sm); letter-spacing: .04em }
.card-read { font-size: var(--t-small); font-weight: 500; color: var(--accent); margin-top: auto }
.card-read:hover { color: var(--accent-2) }

/* No results */
.no-results { display: none; text-align: center; padding: 48px 20px; color: var(--ink-3) }
.no-results h3 { font-size: var(--t-h4); margin: 16px 0 8px; color: var(--ink) }
.no-results p { font-size: var(--t-small); color: var(--ink-3) }

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px }
.page-btn {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--r-sm); color: var(--ink-2);
  font: 500 14px/1 var(--ff); transition: all .15s
}
.page-btn:hover, .page-btn:focus-visible { border-color: var(--accent); color: var(--accent); outline: none }
.page-btn.active { background: var(--ink); border-color: var(--ink); color: var(--surface) }

/* CTA banner */
.cta-banner {
  text-align: center; padding: 40px 20px; margin-top: 48px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r)
}
.cta-banner h3 { font-size: var(--t-h4); font-weight: 500; color: var(--ink); margin-bottom: 8px }
.cta-banner p { font-size: var(--t-small); color: var(--ink-2); max-width: 480px; margin: 0 auto 20px; line-height: 1.6 }
.cta-btn {
  display: inline-flex; align-items: center; height: 44px; padding: 0 24px;
  background: var(--ink); color: var(--surface); border-radius: var(--r-sm);
  font-size: var(--t-small); font-weight: 600; transition: background .15s
}
.cta-btn:hover { background: var(--accent) }

/* Article card image with hero-tag style */
.article-card .card-img .hero-tag { position: relative; z-index: 1 }

@media (max-width: 720px) {
  .articles-grid { grid-template-columns: 1fr }
  .articles-section { padding: 24px var(--gutter-sm) }
}

/* Accessibility: visually hidden (screen readers only) */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.sr-only:focus {
  position: static; width: auto; height: auto;
  overflow: visible; clip: auto; white-space: normal;
  padding: 12px 24px;
  background: var(--accent); color: var(--ink);
  z-index: 10000; border-radius: var(--r-sm);
}