/* ============================================================
   FLORE CLÍNICA – blog.css
   Estilos: home preview · blog.html · post.html
============================================================ */

/* ── Shimmer ── */
@keyframes shimmer {
  0%   { background-position: -500px 0; }
  100% { background-position: 500px 0; }
}

/* ── Fade-up (blog pages) ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   HEADER ALWAYS-VISIBLE (blog.html / post.html)
============================================================ */
.blog-page .header,
.post-page .header {
  background: rgba(255, 255, 255, 0.97) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(44, 62, 45, 0.09);
}
.blog-page .header .nav__link,
.post-page .header .nav__link {
  color: var(--text-primary) !important;
}
.blog-page .header .nav__link:hover,
.post-page .header .nav__link:hover,
.blog-page .header .nav__link.active,
.post-page .header .nav__link.active {
  color: var(--green-mid) !important;
}
.blog-page .logo__text,
.post-page .logo__text { color: var(--text-primary) !important; }
.blog-page .logo__text em,
.post-page .logo__text em { color: var(--green-mid) !important; }

.blog-page .header .hamburger__bar,
.post-page .header .hamburger__bar {
  background: var(--text-primary) !important;
}

.blog-page .header .header__cta,
.post-page .header .header__cta {
  background: var(--green-mid) !important;
  color: #fff !important;
  border-color: var(--green-mid) !important;
  opacity: 1 !important;
}

/* ============================================================
   SKELETON CARDS
============================================================ */
.blog-skeleton {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.blog-skeleton__img,
.blog-skeleton__line {
  background: linear-gradient(90deg, #e8f0e6 25%, #d4e6d0 50%, #e8f0e6 75%);
  background-size: 500px 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}
.blog-skeleton__img { aspect-ratio: 16 / 9; display: block; }
.blog-skeleton__body { padding: 20px 24px 24px; }
.blog-skeleton__line { height: 13px; border-radius: 4px; margin-bottom: 10px; }
.blog-skeleton__line--sm   { width: 38%; height: 10px; }
.blog-skeleton__line--full { width: 100%; }
.blog-skeleton__line--md   { width: 68%; }

/* ============================================================
   BLOG CARD (home preview + listing)
============================================================ */
.blog-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.blog-card__img-wrap {
  aspect-ratio: 16 / 9;
  display: block;
  overflow: hidden;
  background: var(--bg-section);
  text-decoration: none;
}
.blog-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}
.blog-card:hover .blog-card__img-wrap img { transform: scale(1.04); }
.blog-card__img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--green-pale), var(--green-light));
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-card__body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.blog-card__date {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.blog-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}
.blog-card__excerpt {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 0;
}
.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 16px;
}
.blog-card__link {
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--green-mid);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}
.blog-card__link:hover { gap: 8px; }
.blog-card__read-time {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ============================================================
   HOME – BLOG PREVIEW
============================================================ */
.blog-preview {
  padding: var(--section-py) 0;
  background: var(--bg-section);
}
.blog-preview__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.blog-preview__grid .blog-card__img-wrap { aspect-ratio: 16 / 7; }
.blog-preview__grid .blog-skeleton__img  { aspect-ratio: 16 / 7; }
.blog-preview__cta {
  text-align: center;
  margin-top: 48px;
}

/* ============================================================
   BLOG.HTML – HERO
============================================================ */
.blog-hero {
  background: var(--green-dark);
  padding: 80px 0 64px;
  text-align: center;
  color: #fff;
  margin-top: 72px;
}
.blog-hero .eyebrow {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.2);
  margin-bottom: 18px;
  display: inline-block;
}
.blog-hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}
.blog-hero h1 em { color: var(--green-light); font-style: italic; }
.blog-hero p {
  font-size: 1rem;
  color: rgba(255,255,255,0.78);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   BLOG.HTML – POST EM DESTAQUE
============================================================ */
.blog-featured { padding: 64px 0 0; }
.blog-featured__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition);
}
.blog-featured__inner:hover { box-shadow: var(--shadow-lg); }
.blog-featured__img-wrap {
  overflow: hidden;
  min-height: 320px;
}
.blog-featured__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.blog-featured__inner:hover .blog-featured__img-wrap img { transform: scale(1.03); }
.blog-featured__img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 320px;
  background: linear-gradient(135deg, var(--green-pale), var(--green-light));
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-featured__content {
  padding: 40px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.blog-featured__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--green-bg);
  color: var(--green-mid);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 18px;
  width: fit-content;
}
.blog-featured__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 14px;
  text-decoration: none;
  display: block;
}
.blog-featured__title:hover { color: var(--green-mid); }
.blog-featured__excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 20px;
}
.blog-featured__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.blog-featured__meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ============================================================
   BLOG.HTML – LISTAGEM
============================================================ */
.blog-listing { padding: 48px 0 80px; }
.blog-listing__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 0;
}
.blog-listing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

/* ── Pagination ── */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-color);
  background: #fff;
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  gap: 6px;
}
.page-btn:hover  { background: var(--green-bg); border-color: var(--green-mid); color: var(--green-mid); }
.page-btn.active { background: var(--green-mid); border-color: var(--green-mid); color: #fff; }
.page-btn:disabled { opacity: 0.38; cursor: not-allowed; pointer-events: none; }
.page-ellipsis { color: var(--text-muted); padding: 0 2px; line-height: 40px; }

/* ── States ── */
.blog-state {
  text-align: center;
  padding: 72px 24px;
  color: var(--text-secondary);
  grid-column: 1 / -1;
}
.blog-state svg  { opacity: 0.3; margin-bottom: 16px; display: block; margin-inline: auto; }
.blog-state h3   { font-family: 'Cormorant Garamond', serif; font-size: 1.5rem; color: var(--text-primary); margin-bottom: 8px; }
.blog-state p    { font-size: 0.9rem; margin-bottom: 24px; }

/* ============================================================
   POST.HTML – LAYOUT
============================================================ */
.post-page { min-height: 100vh; background: var(--bg-page); }

/* Reading progress */
.reading-progress {
  position: fixed;
  top: 0; left: 0;
  width: 0%;
  height: 3px;
  background: var(--green-mid);
  z-index: 9999;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* Breadcrumb */
.post-breadcrumb {
  padding: 14px 0;
  background: var(--bg-section);
  border-bottom: 1px solid var(--border-color);
  margin-top: 72px;
}
.post-breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0; padding: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.post-breadcrumb__list a { color: var(--green-mid); text-decoration: none; }
.post-breadcrumb__list a:hover { text-decoration: underline; }
.post-breadcrumb__current {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}

/* Post 2-column layout */
.post-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  padding: 56px 0 80px;
  align-items: start;
}

/* Post header */
.post-featured-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
  display: block;
}
.post-header__meta {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.post-header__meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.post-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 24px;
}
.post-like-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: none;
  border: 1.5px solid var(--border-color);
  border-radius: 9999px;
  padding: 7px 18px;
  font-size: 0.83rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 32px;
  font-family: 'Inter', sans-serif;
}
.post-like-btn:hover          { border-color: #e05573; color: #e05573; }
.post-like-btn.liked          { border-color: #e05573; color: #e05573; background: #fef0f3; }
.post-like-btn.liked svg path { fill: #e05573; }

/* TOC inline */
.post-toc-inline {
  background: var(--bg-section);
  border-left: 3px solid var(--green-mid);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin-bottom: 32px;
}
.post-toc-inline h4 {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.post-toc-inline ol { margin: 0; padding-left: 18px; }
.post-toc-inline li { margin-bottom: 7px; }
.post-toc-inline a  {
  font-size: 0.875rem;
  color: var(--green-dark);
  text-decoration: none;
  line-height: 1.5;
}
.post-toc-inline a:hover { color: var(--green-mid); }

/* Post content */
.post-content {
  font-size: 1rem;
  line-height: 1.82;
  color: var(--text-secondary);
}
.post-content h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 600;
  color: var(--text-primary);
  margin: 40px 0 16px;
  line-height: 1.25;
  scroll-margin-top: 96px;
}
.post-content h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--text-primary);
  margin: 30px 0 12px;
  scroll-margin-top: 96px;
}
.post-content h4 {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 22px 0 10px;
}
.post-content p   { margin-bottom: 20px; }
.post-content ul,
.post-content ol  { margin: 0 0 20px 24px; }
.post-content li  { margin-bottom: 7px; }
.post-content blockquote {
  border-left: 4px solid var(--green-mid);
  margin: 28px 0;
  padding: 16px 24px;
  background: var(--bg-section);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-primary);
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
}
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 16px 0;
  display: block;
}
.post-content pre {
  background: var(--text-primary);
  color: #d4f0d0;
  padding: 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 0.85rem;
  margin-bottom: 20px;
  line-height: 1.6;
}
.post-content code {
  background: var(--bg-section);
  color: var(--green-dark);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}
.post-content pre code { background: none; color: inherit; padding: 0; }
.post-content hr { border: none; border-top: 1px solid var(--border-color); margin: 40px 0; }
.post-content figure { margin: 24px 0; }
.post-content figcaption {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
  font-style: italic;
}
.post-content .aligncenter { display: block; margin-inline: auto; text-align: center; }
.post-content .alignleft  { float: left;  margin: 0 20px 16px 0; }
.post-content .alignright { float: right; margin: 0 0 16px 20px; }

/* Text-selection popup */
.selection-popup {
  position: fixed;
  background: var(--text-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  display: none;
  align-items: center;
  gap: 6px;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transform: translateY(-8px);
}
.selection-popup.show { display: flex; }
.selection-popup button {
  background: none;
  border: none;
  color: #fff;
  font-size: 0.78rem;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  padding: 3px 8px;
  border-radius: 4px;
  transition: background var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.selection-popup button:hover { background: rgba(255,255,255,0.15); }
.selection-popup__sep { width: 1px; height: 16px; background: rgba(255,255,255,0.2); }

/* Post footer */
.post-footer {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}
.post-footer__back { margin-bottom: 20px; }
.post-footer__share {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.post-footer__share-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid;
  text-decoration: none;
  transition: all var(--transition);
  background: none;
}
.share-btn--wa   { color: #1dae5a; border-color: #1dae5a; }
.share-btn--wa:hover { background: #1dae5a; color: #fff; }
.share-btn--li   { color: #0a66c2; border-color: #0a66c2; }
.share-btn--li:hover { background: #0a66c2; color: #fff; }
.share-btn--copy { color: var(--text-secondary); border-color: var(--border-color); }
.share-btn--copy:hover { border-color: var(--green-mid); color: var(--green-mid); }

/* Related posts */
.post-related {
  padding: 56px 0 72px;
  background: var(--bg-section);
}
.post-related__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 32px;
}
.post-related__title em { color: var(--green-mid); }
.post-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Comments */
.post-comments {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}
.post-comments__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 32px;
}
.comment-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}
.comment-avatar {
  width: 44px;
  height: 44px;
  border-radius: 9999px;
  background: var(--green-bg);
  color: var(--green-mid);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: 'Cormorant Garamond', serif;
}
.comment-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.comment-author { font-size: 0.875rem; font-weight: 600; color: var(--text-primary); }
.comment-date   { font-size: 0.72rem; color: var(--text-muted); }
.comment-text   { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.65; }
.comment-empty  { font-size: 0.9rem; color: var(--text-muted); font-style: italic; padding: 8px 0; }

.comment-form {
  margin-top: 40px;
  background: var(--bg-section);
  padding: 32px;
  border-radius: var(--radius-md);
}
.comment-form h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.comment-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
  padding: 11px 15px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: var(--text-primary);
  background: #fff;
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--green-mid); }
.form-group textarea { min-height: 120px; }
.form-message {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-top: 14px;
  display: none;
}
.form-message.success { background: var(--green-bg); color: var(--green-dark); display: block; }
.form-message.error   { background: #fef0f0; color: #c0392b; display: block; }

/* Sidebar */
.post-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.sidebar-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.sidebar-cta                     { background: var(--green-dark); color: #fff; }
.sidebar-cta .sidebar-card__title { color: var(--green-light); }
.sidebar-cta p {
  font-size: 0.86rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.65;
  margin-bottom: 18px;
}

.sidebar-toc ol {
  list-style: none;
  padding: 0; margin: 0;
  counter-reset: toc;
}
.sidebar-toc li { counter-increment: toc; margin-bottom: 8px; }
.sidebar-toc a {
  font-size: 0.83rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  gap: 8px;
  align-items: baseline;
  line-height: 1.45;
  transition: color var(--transition);
}
.sidebar-toc a::before {
  content: counter(toc, decimal-leading-zero);
  font-size: 0.68rem;
  color: var(--green-mid);
  font-weight: 600;
  flex-shrink: 0;
}
.sidebar-toc a:hover,
.sidebar-toc a.active { color: var(--green-mid); }
.sidebar-toc a.active { font-weight: 500; }

.sidebar-back a {
  font-size: 0.85rem;
  color: var(--green-mid);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  transition: gap var(--transition);
}
.sidebar-back a:hover { gap: 10px; }

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--green-mid);
  color: #fff;
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  z-index: 100;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover   { background: var(--green-dark); }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1024px) {
  .blog-preview__grid     { grid-template-columns: 1fr 1fr; }
  .blog-listing__grid     { grid-template-columns: 1fr 1fr; }
  .post-related__grid     { grid-template-columns: 1fr 1fr; }
  .blog-featured__inner   { grid-template-columns: 1fr; }
  .blog-featured__content { padding: 32px; }
  .blog-featured__img-wrap { min-height: 260px; max-height: 320px; }
  .post-layout { grid-template-columns: 1fr; gap: 40px; }
  .post-sidebar { position: static; }
}

@media (max-width: 640px) {
  .blog-preview__grid  { grid-template-columns: 1fr; }
  .blog-listing__grid  { grid-template-columns: 1fr; }
  .post-related__grid  { grid-template-columns: 1fr; }
  .blog-hero           { padding: 52px 0 44px; margin-top: 64px; }
  .blog-featured       { padding: 40px 0 0; }
  .blog-listing        { padding: 36px 0 56px; }
  .post-breadcrumb     { margin-top: 64px; }
  .comment-form__row   { grid-template-columns: 1fr; }
  .post-footer__share  { gap: 8px; }
}

@media (max-width: 600px) {
  .blog-preview { padding: 56px 0; }
}

@media (prefers-reduced-motion: reduce) {
  .fade-up           { transition: none; }
  .blog-skeleton__img,
  .blog-skeleton__line { animation: none; background: #e8f0e6; }
}