/* SPurno Blog Article — Editorial Layout
   Builds on css/style.css variables
   ======================================== */

/* ── Reading Progress ── */
.reading-progress {
  position: fixed; top: 0; left: 0;
  width: 0%; height: 3px;
  background: linear-gradient(90deg, var(--primary), #2997ff, #5ac8fa);
  z-index: 10001;
  transition: width .1s linear;
  border-radius: 0 2px 2px 0;
}

/* ── Breadcrumbs ── */
.breadcrumb-bar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: .8rem;
  color: var(--body-muted);
}
.breadcrumb-bar a {
  color: var(--body-muted);
  text-decoration: none;
  transition: color .2s;
}
.breadcrumb-bar a:hover { color: var(--primary) }
.breadcrumb-bar .sep { margin: 0 8px; opacity: .4 }
.breadcrumb-bar .current { color: var(--ink); font-weight: 500 }

/* ── Blog Layout ── */
.blog-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 60px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  align-items: start;
}

/* ── Article Hero ── */
.article-hero { margin-bottom: 36px }
.article-hero .article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 5px 14px;
  background: rgba(0,113,227,.08);
  border: 1px solid rgba(0,113,227,.12);
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  text-decoration: none;
  transition: all .2s;
}
.article-hero .article-category-badge:hover {
  background: rgba(0,113,227,.15);
  border-color: rgba(0,113,227,.2);
}
.article-hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--ink);
  letter-spacing: -.02em;
}
.article-meta-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: .85rem;
  color: var(--body-muted);
}
.article-meta-row .meta-item { display: flex; align-items: center; gap: 6px }
.article-meta-row .meta-item i { font-size: .8rem; opacity: .6 }
.article-meta-row .meta-dot {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--body-muted);
  opacity: .4;
}
.reading-time-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: rgba(0,113,227,.08);
  border-radius: var(--radius-pill);
  font-size: .78rem;
  font-weight: 600;
  color: var(--primary);
}

/* ── Cover Image ── */
.blog-cover {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--bg-secondary);
  width: 100%;
  position: relative;
}
.blog-cover img,
.blog-cover video {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* ── Article Content ── */
.blog-content {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text-secondary);
}
.blog-content p { margin-bottom: 1.3em }
.blog-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.blog-content h2 {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--ink);
  margin: 2em 0 .6em;
  line-height: 1.25;
  letter-spacing: -.01em;
  padding-left: 16px;
  border-left: 3px solid var(--primary);
}
.blog-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 1.6em 0 .4em;
}
.blog-content ul, .blog-content ol {
  padding-left: 24px;
  margin-bottom: 1.3em;
}
.blog-content li { margin-bottom: .5em; color: var(--text-secondary) }
.blog-content li strong { color: var(--ink) }
.blog-content blockquote {
  border-left: 3px solid var(--primary);
  padding: 20px 24px;
  margin: 2em 0;
  background: var(--bg-secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--text-secondary);
}
.blog-content blockquote p { margin-bottom: 0 }
.blog-content img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.8em auto;
  display: block;
}

/* ── Premium Spec Tables ── */
.spec-table-wrap {
  overflow-x: auto;
  margin: 36px 0;
  border-radius: 16px;
  border: 1px solid #e8e8ed;
  background: var(--bg-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,.02), 0 4px 16px rgba(0,0,0,.04);
  transition: box-shadow .3s;
}
.spec-table-wrap:hover {
  box-shadow: 0 1px 4px rgba(0,0,0,.02), 0 8px 32px rgba(0,0,0,.08);
}
.spec-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: .88rem;
  line-height: 1.6;
}
.spec-table tr:first-child th,
.spec-table tr.spec-section-row th,
.spec-table tr.spec-section-row td {
  background: linear-gradient(135deg, #1d1d1f, #2d2d2f);
  color: #fff;
  padding: 14px 22px;
  text-align: left;
  font-weight: 600;
  font-size: .75rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.spec-table tr:not(.spec-section-row) td {
  padding: 11px 22px;
  border-bottom: 1px solid #f0f0f2;
  vertical-align: top;
  line-height: 1.6;
  transition: background .15s;
}
.spec-table tr:not(.spec-section-row):last-child td {
  border-bottom: none;
  padding-bottom: 18px;
}
.spec-table tr:not(.spec-section-row):first-child td {
  padding-top: 18px;
}
.spec-table tr:not(.spec-section-row) td:first-child {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  width: 30%;
  min-width: 140px;
}
.spec-table tr:not(.spec-section-row) td:last-child {
  color: var(--text-secondary);
}
.spec-table tr:not(.spec-section-row):nth-child(even) {
  background: #fafafc;
}
.spec-table tr:not(.spec-section-row):hover td {
  background: rgba(0,113,227,.03);
}
.spec-table tr:not(.spec-section-row) td:first-child::after {
  content: '';
  display: inline-block;
  width: 2px;
  height: 14px;
  background: var(--primary);
  border-radius: 1px;
  margin-left: 10px;
  vertical-align: middle;
  opacity: .2;
}
.spec-table tr.spec-section-row th,
.spec-table tr.spec-section-row td {
  letter-spacing: .08em;
  font-weight: 700;
}
.spec-table tr.spec-section-row:not(:first-child) th,
.spec-table tr.spec-section-row:not(:first-child) td {
  border-top: 1px solid rgba(255,255,255,.1);
}
@media(max-width:600px) {
  .spec-table-wrap { border-radius: 12px; margin: 28px 0; }
  .spec-table tr:not(.spec-section-row) td:first-child { white-space: normal; width: 40%; min-width: 100px }
  .spec-table tr:not(.spec-section-row) td { padding: 10px 14px; font-size: .84rem }
  .spec-table tr.spec-section-row th,
  .spec-table tr.spec-section-row td { padding: 12px 14px; font-size: .7rem }
  .spec-table tr:not(.spec-section-row) td:first-child::after { display: none }
}

/* ── Pros & Cons ── */
.pros-cons-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 36px 0;
  padding: 28px;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-lg);
}
.pros-cons-card .pros h4,
.pros-cons-card .cons h4 {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pros-cons-card .pros h4 { color: #30d158 }
.pros-cons-card .cons h4 { color: #ff3b30 }
.pros-cons-card ul { list-style: none; padding: 0; margin: 0 }
.pros-cons-card li {
  padding: 6px 0;
  font-size: .9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.pros-cons-card li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 7px;
}
.pros-cons-card .pros li::before { background: #30d158 }
.pros-cons-card .cons li::before { background: #ff3b30 }
@media(max-width:600px) {
  .pros-cons-card { grid-template-columns: 1fr; gap: 24px }
}

/* ── Verdict Box ── */
.verdict-box {
  margin: 36px 0;
  padding: 28px 32px;
  background: var(--bg-secondary);
  border: 1px solid rgba(0,113,227,.12);
  border-radius: var(--radius-lg);
  position: relative;
}
.verdict-box::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary), #2997ff);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.verdict-box h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
  padding-left: 0;
  border: none;
}
.verdict-box p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: 1rem;
  line-height: 1.75;
}

/* ── Tags ── */
.tags-section {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid #d2d2d7;
}
.tags-section .label {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
  color: var(--body-muted);
}
.tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0,113,227,.08);
  border: 1px solid rgba(0,113,227,.1);
  border-radius: var(--radius-pill);
  font-size: .8rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: all .2s;
  margin: 0 6px 6px 0;
}
.tag:hover {
  background: rgba(0,113,227,.15);
  border-color: rgba(0,113,227,.2);
}

/* ── Share ── */
.share-section {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
}
.share-section .label {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--body-muted);
}
.share-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(0,113,227,.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  text-decoration: none;
  transition: all .2s;
  font-size: .85rem;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}

/* ── Author Bio ── */
.author-bio {
  margin-top: 40px;
  padding: 28px;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.author-bio::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #2997ff, #5ac8fa);
}
.author-avatar {
  width: 68px; height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #2997ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.author-info { flex: 1; min-width: 200px }
.author-info .name {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--ink);
}
.author-info .desc {
  font-size: .85rem;
  color: var(--body-muted);
  line-height: 1.6;
}
.author-social { display: flex; gap: 8px }
.author-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(0,113,227,.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  text-decoration: none;
  font-size: .82rem;
  transition: all .2s;
}
.author-social a:hover {
  background: var(--primary);
  color: #fff;
}

/* ── Useful Links ── */
.useful-links {
  margin-top: 36px;
  padding: 24px;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-lg);
}
.useful-links .label {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
  color: var(--body-muted);
}
.useful-links .grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.useful-links a {
  font-size: .88rem;
  color: var(--primary);
  text-decoration: none;
  padding: 8px 12px;
  display: block;
  border-radius: var(--radius-sm);
  transition: background .2s;
}
.useful-links a:hover { background: rgba(0,113,227,.08) }

/* ── Sidebar ── */

.sidebar-section {
  margin-bottom: 32px;
  padding: 20px;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-lg);
}
.sidebar-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
}

/* Sidebar: Reading Progress */
.reading-progress-sidebar { text-align: center; padding: 24px 20px }
.reading-progress-sidebar .progress-text {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}
.reading-progress-sidebar .progress-label {
  font-size: .78rem;
  color: var(--body-muted);
  font-weight: 500;
}

/* Sidebar: TOC */
.toc-list { list-style: none; padding: 0; margin: 0 }
.toc-list li { margin-bottom: 2px }
.toc-list a {
  display: block;
  padding: 6px 12px;
  font-size: .82rem;
  color: var(--body-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all .2s;
  line-height: 1.4;
}
.toc-list a:hover {
  color: var(--primary);
  background: rgba(0,113,227,.08);
}
.toc-list a.active {
  color: var(--primary);
  background: rgba(0,113,227,.08);
  border-left-color: var(--primary);
  font-weight: 600;
}
.toc-list .toc-h3 { padding-left: 28px; font-size: .78rem }

/* Sidebar: Recent Posts */
.sidebar-post {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background .2s;
  margin-bottom: 4px;
}
.sidebar-post:hover { background: rgba(0,113,227,.08) }
.sidebar-post .icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(0,113,227,.08);
}
.sidebar-post .title {
  font-size: .82rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
.sidebar-post .date {
  font-size: .72rem;
  color: var(--body-muted);
  margin-top: 2px;
}

/* Sidebar: Tags */
.sidebar-tags { display: flex; flex-wrap: wrap; gap: 6px }
.sidebar-tag {
  display: inline-block;
  padding: 5px 12px;
  background: rgba(0,113,227,.08);
  border: 1px solid rgba(0,113,227,.08);
  border-radius: var(--radius-pill);
  font-size: .75rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: all .2s;
}
.sidebar-tag:hover {
  background: rgba(0,113,227,.15);
  border-color: rgba(0,113,227,.15);
}

/* Sidebar: Authors */
.sidebar-author {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.sidebar-author .initial {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #2997ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.sidebar-author .name { font-size: .82rem; font-weight: 600; color: var(--ink) }
.sidebar-author .role { font-size: .72rem; color: var(--body-muted) }

/* ── Sidebar: Marketplace ── */
.sidebar-marketplace-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  background: linear-gradient(135deg, var(--bg-secondary), #f0f0f2);
  border-radius: var(--radius-md);
  text-decoration: none;
  margin-bottom: 14px;
  transition: all .25s;
}
.sidebar-marketplace-card:hover {
  background: linear-gradient(135deg, rgba(0,113,227,.08), #e8f0ff);
  transform: translateY(-1px);
}
.sidebar-marketplace-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
}
.sidebar-marketplace-text { flex: 1 }
.sidebar-marketplace-text .name {
  font-size: .88rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 2px;
}
.sidebar-marketplace-text .desc {
  font-size: .72rem;
  color: var(--body-muted);
  line-height: 1.4;
}
.sidebar-marketplace-cat {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  font-size: .8rem;
  color: var(--body-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all .2s;
  margin-bottom: 1px;
}
.sidebar-marketplace-cat:hover {
  color: var(--primary);
  background: rgba(0,113,227,.08);
}
.sidebar-marketplace-cat i {
  width: 18px;
  text-align: center;
  font-size: .75rem;
  color: var(--primary);
}

/* ── Cross: Also on PixabAnimation ── */
.pixabanimation-cross {
  margin-top: 40px;
  padding: 28px;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  border-radius: var(--radius-lg);
  text-align: center;
  color: #fff;
  grid-column: 1 / -1;
}
.pixabanimation-cross h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}
.pixabanimation-cross p {
  font-size: .9rem;
  opacity: .85;
  margin-bottom: 16px;
  line-height: 1.5;
}
.pixabanimation-cross .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: #fff;
  color: #6c5ce7;
  border-radius: var(--radius-pill);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
  transition: all .25s;
}
.pixabanimation-cross .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(108,92,231,.3);
}

/* ── Blog Ads ── */
.blog-ad-container {
  margin: 40px 0;
  text-align: center;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  position: relative;
  transition: all .3s;
}
.blog-ad-container:hover { border-color: rgba(0,113,227,.12) }
.blog-ad-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 200px;
  background: linear-gradient(135deg, var(--bg-secondary), #f0f0f2);
  position: relative;
  padding: 32px 24px;
}
.blog-ad-label {
  position: absolute;
  top: 10px; right: 14px;
  font-size: .6rem;
  color: var(--body-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 600;
  background: rgba(0,113,227,.08);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
}
.blog-ad-content {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 8px;
  position: relative;
  z-index: 1;
  max-width: 700px;
  width: 100%;
}
.blog-ad-icon {
  width: 72px; height: 72px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), #2997ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #fff;
  flex-shrink: 0;
  transition: transform .3s;
}
.blog-ad-container:hover .blog-ad-icon { transform: scale(1.05) }
.blog-ad-text { text-align: left; flex: 1 }
.blog-ad-text h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
  line-height: 1.3;
}
.blog-ad-text p {
  font-size: .85rem;
  color: var(--body-muted);
  line-height: 1.5;
  margin-bottom: 10px;
}
.blog-ad-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  background: linear-gradient(135deg, var(--primary), #2997ff);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: .82rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .25s;
}
.blog-content .blog-ad-cta { color: #fff; text-decoration: none }
.blog-content .blog-ad-cta:hover { color: #fff }

/* ── Mobile TOC ── */
.mobile-toc {
  display: none;
  margin-bottom: 32px;
  padding: 20px;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-lg);
}
.mobile-toc-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink);
}
.mobile-toc-toggle i { transition: transform .3s }
.mobile-toc.open .mobile-toc-toggle i { transform: rotate(180deg) }
.mobile-toc .toc-list { display: none; margin-top: 14px; padding-top: 14px; border-top: 1px solid #f0f0f2 }
.mobile-toc.open .toc-list { display: block }

/* ── Related Articles ── */
.related-articles {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid #d2d2d7;
  grid-column: 1 / -1;
}
.related-articles-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 24px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border: 1px solid #d2d2d7;
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all .25s;
}
.related-card:hover {
  border-color: rgba(0,113,227,.15);
  transform: translateY(-3px);
}
.related-card-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  background: var(--bg-secondary);
}
.related-card-body { padding: 16px; flex: 1; display: flex; flex-direction: column }
.related-card-cat {
  font-size: .68rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 6px;
}
.related-card-title {
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 6px;
  color: var(--ink);
}
.related-card-meta {
  font-size: .72rem;
  color: var(--body-muted);
  margin-top: auto;
}

/* ── Back Section ── */
.back-section { text-align: center; margin-top: 48px; padding-top: 32px; border-top: 1px solid #d2d2d7; grid-column: 1 / -1 }
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all .2s;
}
.back-btn:hover { background: var(--primary-hover) }

/* ── Blog Footer ── */
.blog-footer {
  background: var(--ink);
  color: rgba(255,255,255,.65);
  padding: 56px 24px 28px;
  margin-top: 0;
}
.blog-footer-content { max-width: 1100px; margin: 0 auto }
.blog-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr 1.5fr;
  gap: 32px;
  margin-bottom: 32px;
}
.blog-footer-brand { display: flex; flex-direction: column; gap: 12px }
.blog-footer-brand img { height: 40px; width: auto; max-width: none; filter: brightness(0) invert(1); }
.blog-footer-brand .name {
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}
.blog-footer-brand .desc {
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(255,255,255,.45);
}
.blog-footer-social { display: flex; gap: 10px; margin-top: 4px }
.blog-footer-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.45);
  text-decoration: none;
  font-size: .82rem;
  transition: all .2s;
}
.blog-footer-social a:hover { background: rgba(255,255,255,.12); color: #fff }
.blog-footer-col h4 {
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.blog-footer-col a {
  display: block;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  text-decoration: none;
  margin-bottom: 10px;
  transition: color .2s;
}
.blog-footer-col a:hover { color: #2997ff }
.blog-footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.blog-footer-bottom-links { display: flex; gap: 12px; font-size: .8rem }
.blog-footer-bottom-links a { color: rgba(255,255,255,.45); text-decoration: none }
.blog-footer-bottom-links a:hover { color: #2997ff }
.blog-footer-bottom-copy { font-size: .75rem; color: rgba(255,255,255,.3) }

/* ── Popup Ad Overlay ── */
.popup-ad-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 5000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.popup-ad-overlay.show { display: flex }

/* ── Responsive ── */
@media(max-width:1024px) {
  .blog-wrapper { grid-template-columns: 1fr 260px; gap: 40px }
}
.sidebar {
  position: sticky;
  top: 88px;
}

@media(max-width:768px) {
  .blog-wrapper { grid-template-columns: 1fr; padding: 16px }
  .sidebar { display: none }
  .mobile-toc { display: block }
  .article-hero h1 { font-size: 1.8rem }
  .article-hero { margin-bottom: 24px }
  .useful-links .grid { grid-template-columns: 1fr }
  .author-bio { flex-direction: column; text-align: center }
  .share-section { flex-wrap: wrap }
  .blog-cover { border-radius: var(--radius-md); margin-bottom: 28px }
  .breadcrumb-bar { padding: 12px 16px 0 }
  .related-grid { grid-template-columns: 1fr }
  .blog-footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 24px }
  .blog-ad-content { flex-direction: column; gap: 16px; text-align: center }
  .blog-ad-text { text-align: center }
  .blog-ad-icon { width: 56px; height: 56px; font-size: 1.3rem; border-radius: 14px }
}
@media(max-width:480px) {
  .article-hero h1 { font-size: 1.5rem }
  .blog-content h2 { font-size: 1.35rem }
  .article-meta-row { font-size: .8rem; gap: 12px }
  .blog-footer-grid { grid-template-columns: 1fr; gap: 20px }
}