/* ═══════════════════════════════════════════
   Reusable Article Card Component
   Used by: learn hub, learn archive, article
   related sections, and any future card grids.

   Pattern: display block, natural content height.
   Width controlled by parent grid. No flex on card.
   ═══════════════════════════════════════════ */

.wv-article-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #FFFFFF;
  border: 1px solid var(--wv-color-border);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--wv-transition-fast), transform var(--wv-transition-fast);
}
.wv-article-card:hover {
  border-color: var(--wv-color-text-secondary);
  transform: translateY(-2px);
}

/* ── Image ── */
.wv-article-card__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--wv-color-surface);
}
.wv-article-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.wv-article-card__img--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--wv-font-primary);
  font-size: 11px;
  font-style: italic;
  color: #A09A8E; /* TODO: add to CSS variables if used across multiple pages */
  background: #F0E8EC; /* PLACEHOLDER — light pink */
}
.wv-article-card:nth-child(even) .wv-article-card__img--placeholder {
  background: #E8F0E8; /* PLACEHOLDER — light green */
}

/* ── Body ── */
.wv-article-card__body {
  padding: 18px 20px 20px;
}

/* ── Meta (cluster pill) ── */
.wv-article-card__meta {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 9px;
  flex-wrap: wrap;
}

/* ── Cluster pill — neutral style for all clusters ── */
.wv-article-card__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--wv-font-primary);
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 9px 3px;
  border-radius: var(--wv-radius-pill);
  border: 1px solid var(--wv-color-text-secondary);
  background: var(--wv-color-background);
  color: var(--wv-color-text-secondary);
  white-space: nowrap;
}

/* ── Title ── */
.wv-article-card__title {
  font-family: var(--wv-font-serif);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--wv-color-text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Excerpt ── */
.wv-article-card__excerpt {
  font-family: var(--wv-font-primary);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--wv-color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

/* ── Footer ── */
.wv-article-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wv-article-card__byline {
  font-family: var(--wv-font-primary);
  font-size: 11px;
  font-weight: 400;
  color: #A09A8E; /* TODO: add to CSS variables if used across multiple pages */
}
.wv-article-card__arrow {
  font-family: var(--wv-font-primary);
  font-size: 11px;
  font-weight: 600;
  color: var(--wv-color-primary);
}

/* ── Large variant ── */
.wv-article-card--lg .wv-article-card__img {
  aspect-ratio: 4 / 3;
}
.wv-article-card--lg .wv-article-card__title {
  font-size: 22px;
  -webkit-line-clamp: 4;
}
.wv-article-card--lg .wv-article-card__excerpt {
  -webkit-line-clamp: 5;
}

/* ── Related variant (compact) ── */
.wv-article-card--related .wv-article-card__img {
  height: 120px;
  aspect-ratio: unset;
}
.wv-article-card--related .wv-article-card__body {
  padding: 16px;
}
.wv-article-card--related .wv-article-card__title {
  font-size: 14px;
  font-family: var(--wv-font-primary);
  font-weight: 600;
  -webkit-line-clamp: 2;
}
.wv-article-card--related .wv-article-card__pill {
  font-size: 9px;
}

/* ── Responsive ── */
@media (max-width: 767px) {
  .wv-article-card__body {
    padding: 14px 16px 16px;
  }
  .wv-article-card__title {
    font-size: 15px;
  }
}