/* ============================================================
   OSS Blog Styles
   Poppins font, brand colors: #7052fb (primary), #2b2350 (dark),
   #f97bc5 (pink), #797687 (body text)
   ============================================================ */

/* === READING PROGRESS BAR === */
.blog-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #7052fb, #f97bc5);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* === PAGE WRAPPER === */
.blog-page {
  background: #fff;
  min-height: 100vh;
}

/* === BLOG POST LAYOUT (breakout grid) === */
.blog-post-wrap {
  display: grid;
  grid-template-columns: 1fr min(720px, calc(100% - 48px)) 1fr;
  padding-top: 100px;
  padding-bottom: 80px;
}

.blog-post-wrap > * {
  grid-column: 2;
}

.blog-post-wrap > .block-breakout {
  grid-column: 1 / -1;
  width: 100%;
}

.blog-post-wrap > .block-wide {
  grid-column: 1 / -1;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  padding: 0 24px;
  box-sizing: border-box;
}

/* === BLOG LAYOUT WITH TOC === */
.blog-with-toc {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 24px 80px;
  align-items: start;
}

/* === POST HEADER === */
.post-header {
  margin-bottom: 48px;
}

.post-breadcrumb {
  font-size: 13px;
  color: #797687;
  margin-bottom: 16px;
}

.post-breadcrumb a {
  color: #7052fb;
  text-decoration: none;
}

.post-breadcrumb a:hover { text-decoration: underline; }

.post-breadcrumb span { margin: 0 6px; color: #ccc; }

.post-header h1 {
  font-size: 38px;
  font-weight: 700;
  color: #2b2350;
  line-height: 1.25;
  margin: 0 0 20px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: #797687;
  flex-wrap: wrap;
}

.post-meta .tag {
  background: #f0edff;
  color: #7052fb;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

/* === TYPOGRAPHY === */
.post-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: #2b2350;
  margin: 52px 0 16px;
  line-height: 1.3;
  scroll-margin-top: 80px;
}

.post-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: #2b2350;
  margin: 36px 0 12px;
  scroll-margin-top: 80px;
}

.post-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: #2b2350;
  margin: 28px 0 8px;
}

.post-body p {
  font-size: 17px;
  line-height: 1.8;
  color: #4a4660;
  margin: 0 0 20px;
}

.post-body ul,
.post-body ol {
  padding-left: 28px;
  margin: 0 0 20px;
}

.post-body li {
  font-size: 17px;
  line-height: 1.75;
  color: #4a4660;
  margin-bottom: 8px;
}

.post-body strong { color: #2b2350; }

.post-body em { font-style: italic; color: #5a5875; }

.post-body a { color: #7052fb; text-decoration: none; border-bottom: 1px solid #d6ccff; }
.post-body a:hover { color: #5535e0; border-bottom-color: #7052fb; }

.post-body blockquote {
  border-left: 3px solid #7052fb;
  padding: 4px 0 4px 20px;
  margin: 24px 0;
  color: #5a5875;
  font-style: italic;
}

.post-body code {
  background: #f0edff;
  color: #5535e0;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  font-family: 'SFMono-Regular', Consolas, monospace;
}

.post-body hr {
  border: none;
  border-top: 1px solid #eee;
  margin: 40px 0;
}

/* === BLOCK: CALLOUT === */
.block-callout {
  background: linear-gradient(135deg, #f0edff 0%, #fce8f5 100%);
  border-left: 4px solid #7052fb;
  border-radius: 0 12px 12px 0;
  padding: 28px 32px;
  margin: 40px 0;
  font-size: 22px;
  font-weight: 600;
  color: #2b2350;
  line-height: 1.4;
}

/* === BLOCK: PULL QUOTE === */
.block-quote {
  padding: 32px 40px;
  margin: 40px 0;
  position: relative;
}

.block-quote::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 24px;
  font-size: 80px;
  color: #e0d9ff;
  font-family: Georgia, serif;
  line-height: 1;
}

.block-quote .quote-text {
  font-size: 22px;
  font-weight: 500;
  color: #2b2350;
  line-height: 1.5;
  font-style: italic;
  position: relative;
  z-index: 1;
}

.block-quote .quote-attr {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  color: #7052fb;
  font-weight: 500;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === BLOCK: STAT === */
.block-stat {
  text-align: center;
  padding: 48px 24px;
  margin: 40px 0;
}

.block-stat .stat-number {
  font-size: 80px;
  font-weight: 800;
  color: #7052fb;
  line-height: 1;
  display: block;
  font-variant-numeric: tabular-nums;
}

.block-stat .stat-label {
  display: block;
  font-size: 18px;
  color: #797687;
  margin-top: 8px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.4;
}

/* === BLOCK: CONCEPT === */
.block-concept {
  border: 1.5px solid #d6ccff;
  border-radius: 12px;
  padding: 24px 28px;
  margin: 40px 0;
  background: #faf9ff;
}

.block-concept .concept-term {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #7052fb;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.block-concept .concept-def {
  font-size: 16px;
  color: #4a4660;
  line-height: 1.7;
  margin: 0;
}

/* === BLOCK: TABS === */
.block-tabs {
  margin: 40px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1.5px solid #e8e4f8;
}

.block-tabs input[type="radio"] { display: none; }

.tabs-nav {
  display: flex;
  background: #f5f3ff;
  border-bottom: 1.5px solid #e8e4f8;
}

.tabs-nav label {
  flex: 1;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #797687;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
  margin-bottom: -1.5px;
}

.block-tabs input[type="radio"]:checked + label {
  color: #7052fb;
  border-bottom-color: #7052fb;
  background: #fff;
}

.tab-panel { display: none; padding: 24px 28px; }

.block-tabs input#tab1:checked ~ .tabs-content .tab-panel:nth-child(1),
.block-tabs input#tab2:checked ~ .tabs-content .tab-panel:nth-child(2),
.block-tabs input#tab3:checked ~ .tabs-content .tab-panel:nth-child(3) {
  display: block;
}

.tab-panel p {
  font-size: 16px;
  color: #4a4660;
  line-height: 1.75;
  margin: 0 0 12px;
}

/* === BLOCK: FAQ === */
.block-faq {
  margin: 56px 0 40px;
}

.block-faq h3 {
  font-size: 22px;
  font-weight: 700;
  color: #2b2350;
  margin: 0 0 24px;
}

.faq-item {
  border-bottom: 1px solid #eee;
}

.faq-item summary {
  padding: 18px 8px 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: #2b2350;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: #7052fb;
  flex-shrink: 0;
  transition: transform 0.2s;
  line-height: 1;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 8px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: #4a4660;
}

/* === BLOCK: RELATED POSTS === */
.block-related {
  background: #f8f8fc;
  border-radius: 12px;
  padding: 32px;
  margin: 48px 0;
}

.block-related h4 {
  font-size: 13px;
  font-weight: 700;
  color: #797687;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-list li {
  margin-bottom: 10px;
}

.related-list a {
  font-size: 15px;
  color: #2b2350;
  text-decoration: none;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-list a::before {
  content: '→';
  color: #7052fb;
  font-weight: 700;
  flex-shrink: 0;
}

.related-list a:hover { color: #7052fb; }

/* Unwritten related post — looks like a link, non-clickable, tooltip on hover */
.related-list .related-soon {
  font-size: 15px;
  color: #2b2350;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: not-allowed;
  position: relative;
  text-decoration: underline;
  text-decoration-color: rgba(112,82,251,0.4);
  text-underline-offset: 3px;
}
.related-list .related-soon::before {
  content: '→';
  color: #7052fb;
  font-weight: 700;
  flex-shrink: 0;
}
.related-list .related-soon:hover {
  color: #7052fb;
}
/* "Coming soon" tooltip */
.related-list .related-soon:hover::after {
  content: attr(data-soon);
  position: absolute;
  left: 20px;
  bottom: calc(100% + 4px);
  background: #2b2350;
  color: #fff;
  font-size: 11px;
  font-weight: 400;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  text-decoration: none;
}

/* Inline body links that point to unwritten posts */
.blog-post-content .body-link-soon {
  color: #7052fb;
  font-weight: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: not-allowed;
  position: relative;
}
.blog-post-content .body-link-soon:hover::after {
  content: attr(data-soon);
  position: absolute;
  left: 0;
  bottom: calc(100% + 4px);
  background: #2b2350;
  color: #fff;
  font-size: 11px;
  font-weight: 400;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
}

/* === BLOCK: CTA === */
.block-cta {
  background: linear-gradient(135deg, #7052fb 0%, #a070ff 100%);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  margin: 48px 0 0;
  color: #fff;
}

.block-cta h3 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
}

.block-cta p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  margin: 0 0 28px;
  line-height: 1.6;
}

.block-cta .cta-btn {
  display: inline-block;
  background: #fff;
  color: #7052fb;
  font-weight: 700;
  font-size: 16px;
  padding: 14px 36px;
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.block-cta .cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  color: #7052fb;
}

.block-cta .cta-sub {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

/* === BLOCK: PARALLAX === */
.block-parallax {
  height: 380px;
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  margin: 48px 0;
  border-radius: 0;
  position: relative;
  overflow: hidden;
}

.block-parallax.has-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(43,35,80,0.35);
}

/* === BLOCK: INLINE PARALLAX PHOTO === */
.block-photo {
  position: relative;
  height: 28vh;
  min-height: 200px;
  max-height: 340px;
  overflow: hidden;
  border-radius: 14px;
  margin: 44px 0;
}

.block-photo-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 40%;
  will-change: background-position;
}

.block-photo-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.45) 100%);
}

.block-photo-text {
  color: #fff;
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700;
  text-shadow: 3px 3px 0 #5038c8, -1px -1px 0 rgba(0,0,0,0.3);
  text-align: center;
  padding: 0 24px;
  max-width: 80%;
  line-height: 1.25;
  margin: 0;
}

.block-photo-stat {
  text-align: center;
  color: #fff;
}

.ps-value {
  font-size: clamp(56px, 8vw, 88px);
  font-weight: 800;
  line-height: 1;
  text-shadow: 4px 4px 0 #5038c8;
  letter-spacing: -2px;
}

.ps-label {
  font-size: clamp(13px, 1.8vw, 17px);
  font-weight: 500;
  opacity: 0.9;
  margin-top: 8px;
  max-width: 280px;
  line-height: 1.3;
}

/* === DEMO COMPONENT WRAPPER === */
.block-demo {
  margin: 40px auto;
  max-width: 90%;
  border: 1.5px solid #e2ddf7;
  border-radius: 14px;
  padding: 20px 24px 24px;
  background: #fdfcff;
}

.demo-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #7052fb;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.demo-label::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #f97bc5;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.demo-caption {
  font-size: 13px;
  color: #797687;
  text-align: center;
  margin-top: 12px;
  font-style: italic;
}

/* === FACEBOOK MOCKUP BASE === */
.fb-mockup {
  background: #f0f2f5;
  border-radius: 12px;
  padding: 16px;
  max-width: 560px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
}

.fb-post {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 8px;
}

.fb-post-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.fb-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e0d9ff, #fce8f5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.fb-post-meta strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #1c1e21;
}

.fb-post-meta span {
  font-size: 12px;
  color: #65676b;
}

.fb-post-body {
  font-size: 15px;
  color: #1c1e21;
  line-height: 1.5;
}

.fb-post-footer {
  margin-top: 10px;
  font-size: 12px;
  color: #65676b;
}

/* FB comment styles */
.fb-comments { padding: 4px 0 0 4px; }

.fb-comment {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
  opacity: 0;
  transform: translateY(8px);
  position: relative;
}

.fb-c-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #7052fb;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.fb-c-body {
  background: #f0f2f5;
  border-radius: 18px;
  padding: 8px 12px;
  font-size: 13px;
  color: #1c1e21;
  line-height: 1.4;
  flex: 1;
}

.fb-c-body strong { font-weight: 700; }
.cr-time { color: #65676b; font-size: 11px; }

.cr-badge {
  position: absolute;
  right: 0;
  top: 6px;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

.cr-badge.first  { background: #d4edda; color: #155724; }
.cr-badge.second { background: #fff3cd; color: #856404; }
.cr-badge.third  { background: #d1ecf1; color: #0c5460; }
.cr-badge.late   { background: #f8d7da; color: #721c24; }

/* Pulsing timestamps */
.cr-time-win {
  color: #7052fb;
  font-weight: 600;
  animation: pulse-purple 2.5s ease-in-out infinite;
}

.cr-time-late {
  color: #dc3545;
  animation: pulse-red 2.5s ease-in-out infinite;
}

@keyframes pulse-purple {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes pulse-red {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Comments divider label inside fb-post */
.fb-comments-label {
  font-size: 15px;
  color: #65676b;
  padding: 10px 0 6px;
  border-top: 1px solid #e4e6eb;
  margin-top: 8px;
}

.fb-collapsed {
  background: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  margin: 4px 0;
  font-size: 13px;
  color: #65676b;
  cursor: pointer;
  opacity: 0;
  text-align: center;
}

.cr-late-comment {
  opacity: 0;
  margin-top: 4px;
}

.cr-late-comment .fb-c-avatar { background: #ccc; }
.cr-late-comment .fb-c-body,
.cr-late-comment .cr-time { color: #aaa; }

/* === COMMENT RACE REPLAY === */
.demo-replay {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.replay-btn {
  font-size: 12px;
  color: #7052fb;
  background: none;
  border: 1px solid #d6ccff;
  border-radius: 20px;
  padding: 5px 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.replay-btn:hover { background: #f0edff; }

/* === FEED SCAN MOCKUP === */
.feed-group-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid #e4e6eb;
  border-radius: 8px 8px 0 0;
  border-bottom: none;
  max-width: 480px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.feed-group-icon { font-size: 18px; }

.feed-group-name {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #1c1e21;
}

.feed-group-count {
  font-size: 11px;
  color: #65676b;
}

.feed-mockup {
  background: #f0f2f5;
  border-radius: 0 0 10px 10px;
  padding: 10px;
  max-width: 480px;
  margin: 0 auto;
  max-height: 300px;
  overflow: hidden;
  position: relative;
}

.feed-time {
  font-size: 11px;
  color: #8a8d91;
  margin-top: 4px;
}

.feed-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(240,242,245,0.9) 0%, transparent 15%, transparent 75%, rgba(240,242,245,0.9) 100%);
  pointer-events: none;
  z-index: 2;
}

.feed-scroll-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feed-post {
  background: #fff;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: all 0.3s;
}

.feed-post .fp-name {
  font-size: 12px;
  font-weight: 700;
  color: #1c1e21;
  margin-bottom: 4px;
}

.feed-post .fp-text {
  font-size: 13px;
  color: #65676b;
  line-height: 1.4;
}

.feed-post.is-match {
  border: 2px solid #7052fb;
  box-shadow: 0 0 0 3px rgba(112,82,251,0.1);
  background: #faf9ff;
}

.kw-highlight {
  background: #fef08a;
  color: #1c1e21;
  border-radius: 3px;
  padding: 0 2px;
  font-weight: 600;
}

.oss-alert-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #7052fb;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  margin-top: 8px;
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.3s, transform 0.3s;
}

.oss-alert-badge.visible {
  opacity: 1;
  transform: scale(1);
}

/* === AUTHOR BLOCK === */
.block-author {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 28px 0;
  margin: 40px 0 0;
  border-top: 1px solid #eee;
}

.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7052fb, #f97bc5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.author-info strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: #2b2350;
  margin-bottom: 3px;
}

.author-info p {
  font-size: 13px;
  color: #797687;
  line-height: 1.5;
  margin: 0;
}

/* === TOC SIDEBAR === */
.toc-sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
}

.toc-sidebar h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #aaa;
  margin: 0 0 12px;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 2px solid #eee;
}

.toc-list li { margin-bottom: 2px; }

.toc-list a {
  display: block;
  padding: 5px 0 5px 14px;
  font-size: 13px;
  color: #aaa;
  text-decoration: none;
  line-height: 1.4;
  margin-left: -2px;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.toc-list a:hover { color: #7052fb; }

.toc-list a.toc-active {
  color: #7052fb;
  font-weight: 600;
  border-left-color: #7052fb;
}

/* === SCROLL REVEAL === */
.sr-hidden {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.sr-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .sr-hidden { opacity: 1; transform: none; }
  .block-parallax { background-attachment: scroll; }
  .demo-label::before { animation: none; }
}

/* ============================================================
   CONTENT HUB — shared by blog/index.php and videos/index.php
   ============================================================ */

/* --- Hub hero header --- */
.hub-hero {
  background: linear-gradient(-60deg, #7052fb 0%, #8a60fd 100%);
  padding: 120px 0 60px;
  text-align: center;
}

.hub-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 12px;
  line-height: 1.2;
}

.hub-hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  margin: 0 0 40px;
}

/* --- Category filter tabs --- */
.hub-filter-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hub-filter-btn {
  background: rgba(255,255,255,0.15);
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
  font-family: 'Poppins', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 22px;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.hub-filter-btn:hover,
.hub-filter-btn.active {
  background: #fff;
  border-color: #fff;
  color: #7052fb;
}

/* --- Grid wrapper --- */
.hub-grid-wrap {
  background: #f7f6fc;
  padding: 60px 0 80px;
  min-height: 300px;
}

/* --- Card grid --- */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* --- Card --- */
.hub-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 12px rgba(43,35,80,0.06);
  border: 1.5px solid #f0eeff;
  transition: transform 0.2s, box-shadow 0.2s;
}

.hub-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(112,82,251,0.13);
  text-decoration: none;
}

.hub-card.hidden {
  display: none;
}

/* --- Card cover image --- */
.hub-card-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
}

.hub-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.hub-card:hover .hub-card-cover img {
  transform: scale(1.04);
}

/* No-cover placeholder */
.hub-card-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hub-card-cover-placeholder svg {
  opacity: 0.25;
  width: 48px;
  height: 48px;
}

/* --- Category badge (overlaid on cover) --- */
.hub-card-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 4px 10px;
  border-radius: 20px;
  background: #7052fb;
  color: #fff;
}

.hub-card-cat.cat-announcements { background: #f97bc5; }
.hub-card-cat.cat-how-to        { background: #7052fb; }
.hub-card-cat.cat-demos         { background: #7052fb; }
.hub-card-cat.cat-updates       { background: #20c997; color: #fff; }

/* Play button overlay for video cards */
.hub-card-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(43,35,80,0.18);
  transition: background 0.2s;
}

.hub-card:hover .hub-card-play {
  background: rgba(43,35,80,0.35);
}

.hub-card-play svg {
  width: 52px;
  height: 52px;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

/* --- Card body --- */
.hub-card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.hub-card-body h2 {
  font-size: 17px;
  font-weight: 700;
  color: #2b2350;
  margin: 0 0 10px;
  line-height: 1.4;
}

.hub-card-body p {
  font-size: 13.5px;
  color: #797687;
  line-height: 1.6;
  margin: 0 0 auto;
  padding-bottom: 16px;
}

/* --- Card meta row --- */
.hub-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 14px;
  border-top: 1px solid #f0eeff;
  margin-top: auto;
}

.hub-card-author {
  font-size: 12px;
  font-weight: 600;
  color: #2b2350;
}

.hub-card-date {
  font-size: 12px;
  color: #b0adc0;
}

.hub-card-cta {
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
  color: #7052fb;
}

/* --- Language badge --- */
.hub-lang-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: #9088b8;
  background: #f0eeff;
  padding: 3px 8px;
  border-radius: 10px;
  letter-spacing: 0.04em;
}

/* --- Empty state --- */
.hub-empty {
  text-align: center;
  padding: 80px 24px;
  color: #b0adc0;
  font-size: 16px;
  grid-column: 1 / -1;
}

/* ============================================================
   LEGACY / COMPAT — keep these for any old blog-index markup
   ============================================================ */
.blog-index-wrap { max-width: 900px; margin: 0 auto; padding: 120px 24px 80px; }
.blog-index-header { margin-bottom: 48px; }
.blog-index-header h1 { font-size: 40px; font-weight: 700; color: #2b2350; margin: 0 0 10px; }
.blog-index-header p { font-size: 18px; color: #797687; margin: 0; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 28px; }
.blog-card { background: #fff; border: 1.5px solid #eee; border-radius: 14px; padding: 28px; text-decoration: none; display: block; transition: all 0.2s; }
.blog-card:hover { border-color: #d6ccff; box-shadow: 0 8px 24px rgba(112,82,251,0.08); transform: translateY(-2px); text-decoration: none; }
.blog-card-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: #7052fb; margin-bottom: 10px; }
.blog-card h2 { font-size: 18px; font-weight: 700; color: #2b2350; margin: 0 0 12px; line-height: 1.35; }
.blog-card p { font-size: 14px; color: #797687; line-height: 1.6; margin: 0 0 16px; }
.blog-card-read { font-size: 13px; color: #7052fb; font-weight: 600; }

/* === RESPONSIVE === */
@media (max-width: 1100px) {
  .hub-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hub-hero { padding: 100px 0 48px; }
  .hub-hero h1 { font-size: 30px; }
  .hub-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }

  .blog-with-toc {
    display: block;
    padding: 90px 20px 60px;
  }
  .toc-sidebar { display: none; }
  .blog-post-wrap { padding-top: 90px; padding-bottom: 60px; }
  .post-header h1 { font-size: 28px; }
  .block-stat .stat-number { font-size: 60px; }
  .block-callout { font-size: 18px; padding: 20px 22px; }
  .block-quote .quote-text { font-size: 19px; }
  .block-cta { padding: 36px 24px; }
  .block-cta h3 { font-size: 22px; }
  .fb-mockup { font-size: 13px; }
  .block-parallax { background-attachment: scroll; height: 260px; }
}

@media (max-width: 600px) {
  .hub-hero h1 { font-size: 26px; }
  .hub-hero p { font-size: 15px; }
  .hub-grid { grid-template-columns: 1fr; gap: 16px; }
  .hub-grid-wrap { padding: 40px 0 60px; }

  .post-header h1 { font-size: 24px; }
  .post-body h2 { font-size: 21px; }
  .post-body p, .post-body li { font-size: 16px; }
  .blog-grid { grid-template-columns: 1fr; }
  .block-cta .cta-btn { display: block; text-align: center; }
  .fb-mockup { padding: 10px; }
}

/* === MANAGE SUBSCRIPTION NAV LINK === */
/* Blog header has a white background; nav links need to be dark.
   Must beat app.css: .site-header .site-main-menu li > a (specificity 0,2,2) */
.blog-post-page .site-header .site-main-menu li > a {
  color: #2b2350;
}
.blog-post-page .site-header .site-main-menu li > a:hover {
  color: #7052fb;
}

/* === BLOG CTA HINT ARROW === */
/* Appears fixed below the header after clicking "Get Started Free".
   Uses Bootstrap .container to align the arrow to the inner column right edge,
   pointing up (90deg CW) at the "Add to Chrome" nav button. */
#blog-cta-hint {
  position: fixed;
  top: 100px;
  left: 0;
  right: 0;
  z-index: 2000;
  display: none;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}
#blog-cta-hint .container {
  position: relative;
}
#blog-cta-hint img {
  position: absolute;
  right: 15px; /* Bootstrap container gutter */
  top: 0;
  width: 44px;
  transform: rotate(90deg);
  transform-origin: center center;
}
#blog-cta-hint img.pulsing {
  animation: blog-hint-pulse 0.35s ease-in-out 4;
}
@keyframes blog-hint-pulse {
  0%   { transform: rotate(90deg) scale(1);    }
  50%  { transform: rotate(90deg) scale(1.4);  }
  100% { transform: rotate(90deg) scale(1);    }
}
@media (max-width: 991px) {
  #blog-cta-hint { display: none !important; }
}