/* ================================================================
   TITLE HQ — Learning Center Page Styles
   Matches /reference/learning-center.html mockup.
   ================================================================ */

/* ── LIGHT HERO (no background image) ── */
.lc-hero {
  background: var(--warm-white);
  border-bottom: 1px solid var(--stone);
  padding: 48px 0 44px;
  position: relative;
}
.lc-hero::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 5px;
  background: var(--teal);
}
.lc-hero .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--mid-gray); margin-bottom: 16px; }
.lc-hero .breadcrumb a { color: var(--teal); transition: color 0.2s; }
.lc-hero .breadcrumb a:hover { color: var(--teal-dark); }
.lc-hero .breadcrumb svg { opacity: 0.4; flex-shrink: 0; }
.lc-hero h1 { margin-bottom: 10px; }
.lc-hero-sub { font-size: 1.05rem; color: var(--text-body); max-width: 560px; line-height: 1.75; margin-top: 12px; }

/* ── FEATURED ARTICLE ── */
.featured-section { padding: 56px 0 0; }

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--stone);
  box-shadow: var(--shadow-md);
  background: #fff;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}
.featured-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.featured-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}
.featured-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.featured-card:hover .featured-image img { transform: scale(1.04); }

.featured-body {
  padding: 44px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--teal);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  width: fit-content;
}
.featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--mid-gray);
  margin-bottom: 14px;
}
.featured-meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--stone); }
.featured-body h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 14px;
}
.featured-body p {
  font-size: 0.93rem;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 24px;
}
.featured-read-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal);
  transition: gap 0.2s;
}
.featured-card:hover .featured-read-more { gap: 11px; }

/* ── SHOW MORE ── */
.show-more-row {
  padding: 40px 0 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.show-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  border-radius: 100px;
  border: 2px solid var(--teal);
  background: transparent;
  color: var(--teal);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.show-more-btn:hover { background: var(--teal); color: #fff; }
.show-more-btn svg { transition: transform 0.3s; }
.show-more-btn:hover svg { transform: translateY(2px); }
.show-more-btn.loading svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.show-more-btn.all-shown { display: none; }

/* ── TAG COLORS ── */
.article-tag.tag-industry      { background: #fef3cd; color: #92620a; }
.article-tag.tag-title-hq      { background: #fde8e0; color: #c04a24; }
.article-tag.tag-glossary       { background: #f0fdf4; color: #166534; }
.article-tag.tag-events         { background: #f3e8ff; color: #6b21a8; }
.article-tag.tag-getting-started { background: var(--teal-light); color: var(--teal); }
.article-tag.tag-buying         { background: #e8f0fe; color: #1a56db; }
.article-tag.tag-selling        { background: #fff1f0; color: #b91c1c; }
.article-tag.tag-financing      { background: #ecfdf5; color: #065f46; }

/* ── NEWSLETTER STRIP ── */
.newsletter-strip {
  background: var(--sky-light, #deeef9);
  border-top: 1px solid var(--sky, #a4cded);
  border-bottom: 1px solid var(--sky, #a4cded);
  padding: 56px 0;
}
.newsletter-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
}
.newsletter-inner h2 { color: var(--text-dark); font-size: 1.5rem; margin-bottom: 6px; }
.newsletter-inner p { color: var(--text-body); font-size: 0.88rem; }
.newsletter-form { display: flex; gap: 10px; flex-shrink: 0; align-items: flex-start; flex-wrap: wrap; }
.newsletter-input {
  padding: 11px 18px;
  border-radius: var(--radius);
  border: 1.5px solid var(--sky, #a4cded);
  background: #fff;
  color: var(--text-dark);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  width: 260px;
  outline: none;
  transition: border-color 0.2s;
}
.newsletter-input::placeholder { color: var(--mid-gray); }
.newsletter-input:focus { border-color: var(--teal); }
.newsletter-status {
  margin-top: 8px;
  font-size: 0.82rem;
  grid-column: 1 / -1;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .featured-card { grid-template-columns: 1fr; }
  .featured-image { aspect-ratio: 16/9; }
  .featured-body { padding: 32px 36px; }
  .newsletter-inner { grid-template-columns: 1fr; gap: 24px; }
  .newsletter-form { flex-wrap: wrap; }
}

@media (max-width: 560px) {
  .featured-body { padding: 24px; }
}