/* ═══════════════════════════════════════════════
   BLOG-CATEGORY.CSS — Category "Hub" editorial landing
   Vietnam City Breaks · WordPress theme
   Layered on top of home.css (.blcard) + blog-archive.css (bls-hero).
   Mobile-first (base = 375px); scales up at 768px / 1024px.
   ═══════════════════════════════════════════════ */

/* ── Editorial intro ── */
.category-hub .cat-intro { padding: 2rem 0 .5rem; }
.category-hub .cat-intro p {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  font-family: var(--fb);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-b);
}

/* ── Featured article (big hero card) ── */
.category-hub .cat-feat {
  display: block;
  margin: 1.75rem 0 .5rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: var(--sh-card);
  transition: transform .3s, box-shadow .3s;
}
.category-hub .cat-feat:hover { transform: translateY(-4px); box-shadow: var(--sh-hover); }
.category-hub .cat-feat-img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-soft); }
.category-hub .cat-feat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.category-hub .cat-feat:hover .cat-feat-img img { transform: scale(1.05); }
.category-hub .cat-feat-body { padding: 1.4rem 1.3rem 1.5rem; }
.category-hub .cat-feat-badge {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: .26rem .7rem;
  border-radius: 20px;
  margin-bottom: .65rem;
}
.category-hub .cat-feat-body .bl-tag { color: var(--secondary); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; margin-bottom: .35rem; }
.category-hub .cat-feat-title { font-family: var(--fh); font-size: clamp(1.3rem, 3vw, 1.85rem); font-weight: 800; line-height: 1.25; color: var(--text-h); margin: 0 0 .6rem; }
.category-hub .cat-feat-excerpt { font-size: 1rem; line-height: 1.7; color: var(--text-b); margin: 0 0 .9rem; }
.category-hub .cat-feat .bl-date { display: flex; align-items: center; gap: .35rem; font-size: .78rem; color: var(--text-m); margin-bottom: .9rem; }
.category-hub .cat-feat-cta { font-family: var(--fh); font-weight: 700; font-size: .92rem; color: var(--primary); }

/* ── Grid heading ── */
.category-hub .cat-grid-hd { margin: 2.25rem 0 1.1rem; text-align: left; }
.category-hub .cat-grid-hd h2 { font-family: var(--fh); font-size: var(--text-h2); font-weight: 800; color: var(--text-h); margin: 0; }

/* ── Article grid (reuses .blcard from home.css) ── */
.category-hub .cat-grid { display: grid; grid-template-columns: 1fr; gap: 1.4rem; margin-bottom: 1rem; }

/* ── Empty state ── */
.category-hub .cat-empty { text-align: center; padding: 3rem 1rem; }
.category-hub .cat-empty p { color: var(--text-b); margin-bottom: 1.2rem; }

/* ── Related topics ── */
.category-hub .cat-topics { padding: 3rem 0 1rem; }
.category-hub .cat-topics .section-hd { text-align: center; margin-bottom: 1.6rem; }
.category-hub .cat-topics .section-hd h2 { font-family: var(--fh); font-size: var(--text-h2); font-weight: 800; color: var(--text-h); margin: 0 0 .3rem; }
.category-hub .cat-topics .section-hd p { color: var(--text-m); margin: 0; }
.category-hub .cat-topics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; }
.category-hub .cat-topic-pill {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: 1rem 1.1rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.category-hub .cat-topic-pill:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--sh-card); }
.category-hub .cat-topic-name { font-family: var(--fh); font-weight: 700; font-size: 1rem; color: var(--text-h); }
.category-hub .cat-topic-count { font-size: .78rem; color: var(--text-m); }

/* ── CTA band ── */
.category-hub .cat-cta { padding: 2.5rem 0 3.5rem; }
.category-hub .cat-cta-inner {
  background: linear-gradient(135deg, var(--secondary) 0%, #0d4f4f 100%);
  border-radius: var(--r-card);
  padding: 2rem 1.5rem;
  text-align: center;
  color: #fff;
}
.category-hub .cat-cta-txt h2 { font-family: var(--fh); font-size: clamp(1.35rem, 3vw, 1.85rem); font-weight: 800; margin: 0 0 .5rem; color: #fff; }
.category-hub .cat-cta-txt p { font-size: 1rem; line-height: 1.6; margin: 0 0 1.3rem; color: rgba(255,255,255,.9); }
.category-hub .cat-cta .btn-primary { display: inline-block; }

/* ═══ Tablet ═══ */
@media (min-width: 768px) {
  .category-hub .cat-feat { display: grid; grid-template-columns: 1.15fr 1fr; align-items: stretch; }
  .category-hub .cat-feat-img { aspect-ratio: auto; height: 100%; min-height: 300px; }
  .category-hub .cat-feat-body { padding: 2rem 1.9rem; align-self: center; }
  .category-hub .cat-grid { grid-template-columns: 1fr 1fr; gap: 1.6rem; }
  .category-hub .cat-topics-grid { grid-template-columns: repeat(3, 1fr); }
  .category-hub .cat-cta-inner { display: flex; align-items: center; justify-content: space-between; text-align: left; padding: 2.25rem 2.5rem; gap: 2rem; }
  .category-hub .cat-cta-txt p { margin-bottom: 0; }
  .category-hub .cat-cta .btn-primary { width: auto; white-space: nowrap; flex-shrink: 0; }
}

/* ═══ Desktop ═══ */
@media (min-width: 1024px) {
  .category-hub .cat-grid { grid-template-columns: repeat(3, 1fr); }
}