/* ============================================================
   Blog Page — blog.style.css
   Design system: teal/slate — Barlow Condensed / Playfair / DM Sans
   Layout: dark hero → offset white container → card grid
   Unique: .hero-section / .hero-stats / .search-section /
           .categories-grid / .category-card /
           .blog-posts / .article-card / .article-image colour variants /
           .faq-section / .faq-grid
   ============================================================ */

/* ════════════════════════════════════════
   BLOG HERO
   ════════════════════════════════════════ */
.hero-section {
  background: var(--clr-slate-900);
  position: relative;
  overflow: hidden;
  padding: 5rem 1.5rem 7rem;
  text-align: center;
  color: var(--clr-white);
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 85% at 10% 55%, rgba(13,207,180,.13) 0%, transparent 58%),
    radial-gradient(ellipse 45% 65% at 88% 35%, rgba(6,182,212,.08) 0%, transparent 55%);
}
.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--clr-teal-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--clr-teal-grid) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-section-inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-pill);
  background: rgba(13,207,180,.1);
  border: 1px solid rgba(13,207,180,.25);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-teal);
  margin-bottom: 1.5rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 1.25rem;
  color: var(--clr-white);
}
.hero-title .accent {
  font-family: var(--font-serif);
  font-style: italic;
  text-transform: none;
  color: var(--clr-teal);
}
.hero-subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,.6);
  line-height: 1.85;
  max-width: 680px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
}
.hero-subtitle a {
  color: var(--clr-teal);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid rgba(13,207,180,.35);
  transition: border-color var(--transition);
}
.hero-subtitle a:hover { border-color: var(--clr-teal); }

/* ── Stats row ── */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.stat-item { text-align: center; }
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--clr-teal);
  letter-spacing: -0.01em;
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-top: 0.3rem;
}

/* ════════════════════════════════════════
   BLOG CONTAINER
   ════════════════════════════════════════ */
.blog-container {
  max-width: 1160px;
  margin: -3rem auto 5rem;
  padding: 0 1.25rem;
  position: relative;
  z-index: 10;
}

/* ════════════════════════════════════════
   SEARCH SECTION
   ════════════════════════════════════════ */
.search-section {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow-lift);
  border: 1px solid var(--clr-slate-200);
  margin-bottom: 1.5rem;
  animation: slideUp 0.4s ease both;
}
@keyframes slideUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
.search-container {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  max-width: 680px;
  margin: 0 auto;
}
.search-input {
  flex: 1;
  height: 2.75rem;
  padding: 0 1rem;
  border: 1.5px solid var(--clr-slate-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--clr-slate-800);
  background: var(--clr-slate-100);
  transition: border-color var(--transition), background var(--transition);
  outline: none;
}
.search-input::placeholder { color: var(--clr-slate-400); }
.search-input:focus {
  border-color: var(--clr-teal-deep);
  background: var(--clr-white);
}
.search-btn {
  height: 2.75rem;
  width: 2.75rem;
  background: var(--clr-slate-900);
  color: var(--clr-white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.search-btn:hover { background: var(--clr-teal-deep); transform: scale(1.04); }

/* ════════════════════════════════════════
   SECTION TITLES (shared)
   ════════════════════════════════════════ */
.section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-teal-deep);
  margin-bottom: 0.35rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--clr-slate-900);
  margin-bottom: 1.5rem;
}
.section-title .serif-accent {
  font-family: var(--font-serif);
  font-style: italic;
  text-transform: none;
  color: var(--clr-teal-deep);
}

/* ════════════════════════════════════════
   CATEGORY CARDS
   ════════════════════════════════════════ */
.categories-section {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2.25rem;
  box-shadow: var(--shadow-lift);
  border: 1px solid var(--clr-slate-200);
  margin-bottom: 1.5rem;
  animation: slideUp 0.45s ease 0.05s both;
}
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.category-card {
  background: var(--clr-slate-100);
  border: 1px solid var(--clr-slate-200);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.25rem 1.25rem;
  cursor: pointer;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.category-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  transform: translateY(-3px);
  border-color: var(--clr-teal-deep);
}
.category-icon {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}
.category-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-slate-800);
  margin-bottom: 0.5rem;
}
.category-description {
  font-size: 0.82rem;
  color: var(--clr-slate-500);
  line-height: 1.65;
  margin-bottom: 0.85rem;
}
.category-description a {
  color: var(--clr-teal-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(13,148,136,.25);
}
.category-description a:hover { border-color: var(--clr-teal-deep); }
.category-count {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-teal-deep);
  background: var(--clr-teal-glow);
  border: 1px solid rgba(13,207,180,.2);
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.65rem;
}

/* ════════════════════════════════════════
   BLOG POSTS GRID
   ════════════════════════════════════════ */
.blog-section {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2.5rem;
  box-shadow: var(--shadow-lift);
  border: 1px solid var(--clr-slate-200);
  margin-bottom: 1.5rem;
  animation: slideUp 0.5s ease 0.1s both;
}
.blog-header { margin-bottom: 1.5rem; }
.blog-subtitle {
  font-size: 0.9rem;
  color: var(--clr-slate-500);
  line-height: 1.75;
  margin-top: 0.35rem;
}
.blog-subtitle a { color: var(--clr-teal-deep); text-decoration: underline; text-underline-offset: 2px; }

.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

/* ── Article Card ── */
.article-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.article-card:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,.1);
  transform: translateY(-4px);
  border-color: var(--clr-slate-300);
}

/* ── Article image band ── */
.article-image {
  height: 7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.article-image-label {
  font-size: 2.4rem;
  opacity: 0.9;
  position: relative;
  z-index: 1;
  line-height: 1;
}

/* Colour variants — matched to PHP color_class() map */
.article-image-green  { background: linear-gradient(135deg, #16a34a, #15803d); }
.article-image-blue   { background: linear-gradient(135deg, #0ea5e9, #0369a1); }
.article-image-red    { background: linear-gradient(135deg, #ef4444, #dc2626); }
.article-image-orange { background: linear-gradient(135deg, #f97316, #ea580c); }
.article-image-teal   { background: linear-gradient(135deg, #0d9488, #0f766e); }
.article-image-purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.article-image-slate  { background: linear-gradient(135deg, #475569, #334155); }
.article-image-indigo { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.article-image-gold   { background: linear-gradient(135deg, #f59e0b, #d97706); }
.article-image-emerald{ background: linear-gradient(135deg, #10b981, #059669); }

/* thumbnail override */
.article-image.has-thumb {
  background-size: cover;
  background-position: center;
}
.article-image.has-thumb .article-image-label { display: none; }

/* ── Card content ── */
.article-content { padding: 1.25rem 1.25rem 1.4rem; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
}
.article-category {
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-teal-deep);
  background: var(--clr-teal-glow);
  border: 1px solid rgba(13,207,180,.2);
  border-radius: var(--radius-pill);
  padding: 0.18rem 0.6rem;
}
.article-date {
  font-size: 0.75rem;
  color: var(--clr-slate-400);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.article-title {
  font-family: var(--font-display);
  font-size: 0.97rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--clr-slate-800);
  line-height: 1.35;
  margin-bottom: 0.6rem;
}
.article-excerpt {
  font-size: 0.83rem;
  color: var(--clr-slate-500);
  line-height: 1.7;
  margin-bottom: 0;
}
.article-excerpt a { color: var(--clr-teal-deep); text-decoration: underline; text-underline-offset: 2px; }

/* ── Hover arrow indicator ── */
.article-card::after {
  content: '→';
  position: absolute;
  bottom: 1.1rem;
  right: 1.25rem;
  font-size: 0.85rem;
  color: var(--clr-slate-300);
  transition: color var(--transition), transform var(--transition);
}
.article-card { position: relative; }
.article-card:hover::after {
  color: var(--clr-teal-deep);
  transform: translateX(3px);
}

/* ── No posts state ── */
.no-posts {
  grid-column: 1/-1;
  background: var(--clr-slate-100);
  border: 1px dashed var(--clr-slate-300);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  color: var(--clr-slate-500);
  font-size: 0.9rem;
}
.no-posts strong { display: block; color: var(--clr-slate-700); font-size: 1rem; margin-bottom: 0.4rem; }

/* ── No results (search) ── */
#noResults {
  display: none;
  grid-column: 1/-1;
  text-align: center;
  padding: 2rem;
  color: var(--clr-slate-400);
  font-size: 0.9rem;
}

/* ════════════════════════════════════════
   FAQ SECTION
   ════════════════════════════════════════ */
.faq-section {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2.5rem;
  box-shadow: var(--shadow-lift);
  border: 1px solid var(--clr-slate-200);
  animation: slideUp 0.55s ease 0.15s both;
}
.faq-intro {
  font-size: 0.9rem;
  color: var(--clr-slate-500);
  margin-bottom: 1.75rem;
  line-height: 1.7;
}
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.faq-item {
  background: var(--clr-slate-100);
  border: 1px solid var(--clr-slate-200);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
}
.faq-item h3 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--clr-slate-800);
  margin-bottom: 0.55rem;
  line-height: 1.4;
}
.faq-item p {
  font-size: 0.84rem;
  color: var(--clr-slate-500);
  line-height: 1.75;
}
.faq-item p a { color: var(--clr-teal-deep); text-decoration: underline; text-underline-offset: 2px; }

/* ════════════════════════════════════════
   FILTER RESET BAR (shown when filtered)
   ════════════════════════════════════════ */
.filter-bar {
  display: none;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.82rem;
  color: var(--clr-slate-600);
}
.filter-bar.visible { display: flex; }
.filter-reset {
  background: none;
  border: 1px solid var(--clr-slate-300);
  border-radius: var(--radius-pill);
  padding: 0.22rem 0.75rem;
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-slate-600);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}
.filter-reset:hover { border-color: var(--clr-slate-800); color: var(--clr-slate-800); }

/* ════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════ */
@media (max-width: 1024px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .hero-section { padding: 3.5rem 1.25rem 6rem; }
  .blog-container { margin-top: -2rem; padding: 0 0.75rem; }
  .hero-stats { gap: 1.5rem; }
  .search-section,
  .categories-section,
  .blog-section,
  .faq-section { padding: 1.25rem 1rem; }
  .blog-posts { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr; }
}