/* ========================================
   PSLAB – Article Page Stylesheet
   Shared by all Baza wiedzy articles
   ======================================== */

/* Inherit design tokens from main index.css */

/* ---------- Article Layout ---------- */
.article-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.article-hero {
  padding: 140px 0 60px;
  background: var(--clr-bg-alt);
  border-bottom: 1px solid var(--clr-glass-border);
}

.article-hero__breadcrumb {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
}

.article-hero__breadcrumb a {
  color: var(--clr-primary);
}

.article-hero__breadcrumb span {
  margin: 0 8px;
  opacity: 0.5;
}

.article-hero__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--clr-text-heading);
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 800px;
}

.article-hero__meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--clr-text-muted);
}

.article-hero__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Article Content ---------- */
.article-content {
  padding: 60px 0 100px;
  flex: 1;
}

.article-body {
  max-width: 760px;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-text-heading);
  margin: 48px 0 16px;
  padding-top: 16px;
  border-top: 1px solid var(--clr-glass-border);
}

.article-body h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.article-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text-heading);
  margin: 32px 0 12px;
}

.article-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--clr-text);
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 24px;
  color: var(--clr-text);
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body strong {
  color: var(--clr-text-heading);
  font-weight: 600;
}

/* Highlight box */
.article-highlight {
  background: rgba(26, 122, 138, 0.05);
  border-left: 3px solid var(--clr-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 28px 0;
}

.article-highlight p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* CTA at bottom */
.article-cta {
  margin-top: 48px;
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.article-cta h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.article-cta p {
  margin-bottom: 20px;
  color: var(--clr-text-muted);
}

/* ---------- Knowledge Base Index ---------- */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.kb-card {
  background: #ffffff;
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}

.kb-card:hover {
  border-color: rgba(26, 122, 138, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26, 122, 138, 0.12);
}

.kb-card__tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(26, 122, 138, 0.06);
  color: var(--clr-primary-dark);
  border: 1px solid rgba(26, 122, 138, 0.12);
  margin-bottom: 14px;
  align-self: flex-start;
}

.kb-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text-heading);
  margin-bottom: 10px;
  line-height: 1.35;
}

.kb-card__desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.kb-card__link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.kb-card__link:hover {
  color: var(--clr-primary-dark);
}

/* ---------- Responsive ---------- */
/* ---------- Case Study Specifics ---------- */
.cs-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.cs-meta__item {
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.cs-meta__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--clr-text-muted);
  margin-bottom: 4px;
}

.cs-meta__value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-text-heading);
}

.cs-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.cs-result {
  text-align: center;
  padding: 24px 16px;
  background: rgba(26, 122, 138, 0.04);
  border: 1px solid rgba(26, 122, 138, 0.12);
  border-radius: var(--radius-sm);
}

.cs-result__number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.cs-result__label {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
}

.cs-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 28px;
}

.cs-tech .tag {
  font-size: 0.78rem;
}

/* ---------- Case Study Index Grid ---------- */
.cs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.cs-card {
  background: #ffffff;
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}

.cs-card:hover {
  border-color: rgba(26, 122, 138, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(26, 122, 138, 0.12);
}

.cs-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.cs-card__year {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--clr-primary);
  background: rgba(26, 122, 138, 0.06);
  border: 1px solid rgba(26, 122, 138, 0.12);
  padding: 2px 10px;
  border-radius: 99px;
}

.cs-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-text-heading);
  margin-bottom: 8px;
  line-height: 1.35;
}

.cs-card__desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
}

.cs-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.cs-card__tags .tag {
  font-size: 0.68rem;
  padding: 2px 8px;
}

.cs-card__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .article-hero {
    padding: 120px 0 40px;
  }
  .article-body h2 {
    font-size: 1.3rem;
  }
  .kb-grid {
    grid-template-columns: 1fr;
  }
}