/**
 * Knowledge Base – article cards, search, filters, detail prose
 */

/* ── Toolbar: search + category pills ── */
.kb-toolbar {
  max-width: 820px;
  margin: 0 auto clamp(24px, 4vw, 36px);
}

.kb-search {
  position: relative;
  margin-bottom: 16px;
}

.kb-search__label {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--pg-muted);
  font-size: 16px;
  margin: 0;
  pointer-events: none;
}

.kb-search__input {
  width: 100%;
  padding: 14px 18px 14px 48px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--pg-navy);
  background: #fff;
  border: 1px solid #e8ecf4;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(11, 43, 111, 0.06);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.kb-search__input:focus {
  outline: none;
  border-color: rgba(255, 179, 2, 0.55);
  box-shadow: 0 4px 20px rgba(255, 179, 2, 0.15);
}

.kb-search__input::placeholder {
  color: #9aa3b2;
}

.kb-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.kb-filter {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--pg-muted);
  background: #fff;
  border: 1px solid #e8ecf4;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.kb-filter:hover {
  border-color: rgba(255, 179, 2, 0.4);
  color: var(--pg-navy);
}

.kb-filter.is-active {
  background: var(--pg-primary);
  border-color: var(--pg-primary);
  color: var(--pg-navy);
}

.kb-results-count {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--pg-muted);
  margin-bottom: clamp(20px, 3vw, 28px);
}

.kb-empty {
  text-align: center;
  font-size: 1rem;
  color: var(--pg-muted);
  padding: 40px 20px;
  background: #fff;
  border: 1px dashed #d8deea;
  border-radius: var(--pg-radius);
  max-width: 480px;
  margin: 0 auto;
}

/* ── Article cards grid ── */
.kb-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .kb-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .kb-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.kb-grid--related {
  max-width: 960px;
  margin: 0 auto;
}

.kb-card {
  background: #fff;
  border: 1px solid #e8ecf4;
  border-radius: calc(var(--pg-radius) + 2px);
  box-shadow: 0 6px 22px rgba(11, 43, 111, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, opacity 0.2s ease;
  height: 100%;
}

.kb-card.is-hidden {
  display: none;
}

.kb-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(11, 43, 111, 0.12);
  border-color: rgba(255, 179, 2, 0.25);
}

.kb-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px 22px;
  text-decoration: none;
  color: inherit;
}

.kb-card__link:hover {
  text-decoration: none;
  color: inherit;
}

.kb-card__category {
  display: inline-block;
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.kb-card__category--setup {
  color: #0b5cab;
  background: rgba(11, 92, 171, 0.1);
}

.kb-card__category--troubleshooting {
  color: #b45309;
  background: rgba(180, 83, 9, 0.1);
}

.kb-card__category--apps {
  color: #6d28d9;
  background: rgba(109, 40, 217, 0.1);
}

.kb-card__category--trial {
  color: #047857;
  background: rgba(4, 120, 87, 0.1);
}

.kb-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--pg-navy);
  line-height: 1.35;
  margin: 0 0 10px;
}

.kb-card__excerpt {
  font-size: 14px;
  line-height: 1.65;
  color: var(--pg-muted);
  margin: 0 0 16px;
  flex: 1;
}

.kb-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #8b93a1;
  margin-bottom: 14px;
}

.kb-card__read {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.kb-card__read i {
  font-size: 12px;
}

.kb-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pg-blue);
  margin-top: auto;
}

.kb-card__link:hover .kb-card__cta {
  text-decoration: underline;
}

.kb-card--compact .kb-card__link {
  padding: 20px 18px;
}

.kb-card--compact .kb-card__title {
  font-size: 1rem;
}

.kb-card--compact .kb-card__excerpt {
  font-size: 13px;
  margin-bottom: 12px;
}

/* ── Breadcrumb ── */
.kb-breadcrumb {
  background: #f8f9fc;
  border-bottom: 1px solid #e8ecf4;
  padding: 14px 0;
}

.kb-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  font-weight: 600;
}

.kb-breadcrumb__list li {
  display: inline-flex;
  align-items: center;
  color: var(--pg-muted);
}

.kb-breadcrumb__list li:not(:last-child)::after {
  content: "/";
  margin: 0 10px;
  color: #c4cad6;
  font-weight: 400;
}

.kb-breadcrumb__list a {
  color: var(--pg-blue);
  text-decoration: none;
}

.kb-breadcrumb__list a:hover {
  text-decoration: underline;
}

.kb-breadcrumb__list li[aria-current="page"] {
  color: var(--pg-navy);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .kb-breadcrumb__list li[aria-current="page"] {
    max-width: 480px;
  }
}

/* ── Article detail ── */
.kb-article {
  padding: clamp(40px, 6vw, 64px) 0;
}

.kb-article__header {
  max-width: 760px;
  margin: 0 auto clamp(32px, 5vw, 44px);
  text-align: center;
}

.kb-article__header h1 {
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  font-weight: 700;
  color: var(--pg-navy);
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.kb-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #8b93a1;
  margin-bottom: 16px;
}

.kb-article__read {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.kb-article__excerpt {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--pg-muted);
  margin: 0;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Prose (article body) ── */
.kb-prose {
  max-width: 720px;
  margin: 0 auto;
}

.kb-prose h2 {
  font-size: clamp(1.3rem, 2.8vw, 1.6rem);
  font-weight: 700;
  color: var(--pg-navy);
  margin: 36px 0 14px;
  line-height: 1.3;
}

.kb-prose h2:first-child {
  margin-top: 0;
}

.kb-prose h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--pg-navy);
  margin: 28px 0 10px;
  line-height: 1.35;
}

.kb-prose p {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--pg-muted);
  margin-bottom: 16px;
}

.kb-prose strong {
  color: var(--pg-navy);
  font-weight: 700;
}

.kb-prose a {
  color: var(--pg-blue);
  font-weight: 600;
  text-decoration: none;
}

.kb-prose a:hover {
  text-decoration: underline;
}

.kb-prose ul,
.kb-prose ol {
  margin: 0 0 16px;
  padding-left: 1.35rem;
}

.kb-prose li {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--pg-muted);
  margin-bottom: 8px;
}

/* ── Related + back link ── */
.kb-related .pg-section__head {
  margin-bottom: clamp(24px, 4vw, 36px);
}

.kb-back-link {
  text-align: center;
  margin-top: clamp(28px, 4vw, 40px);
  margin-bottom: 0;
}

.kb-back-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pg-blue);
  text-decoration: none;
}

.kb-back-link a:hover {
  text-decoration: underline;
}

/* ── Visually hidden (search label) ── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}