/* ── Reading progress bar ── */
#read-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--blue-d));
  z-index: 9999;
  transition: width .08s linear;
  pointer-events: none;
}

/* ── Article action buttons ── */
.art-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.art-like-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: 50px;
  border: 1.5px solid rgba(37,99,235,.25);
  background: rgba(37,99,235,.05);
  color: var(--gray-4, #888);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .18s, border-color .18s, color .18s, transform .12s;
}
.art-like-btn svg { transition: fill .18s, transform .18s; fill: currentColor; }
.art-like-btn:hover { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.08); }
.art-like-btn:hover svg { transform: scale(1.15); }
.art-like-btn.is-liked { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.1); }
.art-like-btn.is-liked svg { fill: var(--blue); }
.art-like-btn:active { transform: scale(.96); }

.art-save-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: 50px;
  border: 1.5px solid rgba(100,100,140,.2);
  background: rgba(100,100,140,.05);
  color: var(--gray-4, #888);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .18s, border-color .18s, color .18s;
}
.art-save-btn svg { stroke: currentColor; transition: stroke .18s; }
.art-save-btn:hover { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.06); }
.art-save-btn.is-saved { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.1); }
.art-save-btn.is-saved svg { stroke: var(--blue); fill: var(--blue); }

/* ── Back to top ── */
#back-top {
  position: fixed;
  bottom: 32px; right: 28px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(37,99,235,.35);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .22s, transform .22s, background .15s;
  z-index: 9998;
}
#back-top.visible { opacity: 1; transform: translateY(0); }
#back-top:hover { background: var(--blue-d); }

/* ── Article single ── */
.art-header-bg {
  background: linear-gradient(160deg, #f0f9ff 0%, #dbeafe 40%, #f8faff 70%, #dbeafe 100%);
  border-bottom: 1px solid rgba(59,130,246,.08);
}
.article-wrap { max-width: 1180px; margin: 0 auto; padding: 24px 24px 80px; }

.article-single { max-width: 860px; margin: 0 auto; }

.art-header { margin: 0 auto 40px; text-align: center; }

.art-cat-badge {
  display: inline-block;
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.art-title {
  font-family: var(--font);
  font-size: clamp(1.75rem, 4.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -.5px;
  color: var(--dark);
}

.art-excerpt {
  font-size: 1.08rem;
  color: var(--gray-3);
  line-height: 1.75;
  margin-bottom: 18px;
  font-family: var(--font);
  font-style: italic;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.art-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  font-size: .78rem;
  color: var(--gray-4);
  letter-spacing: .2px;
}
.art-meta > * + *::before {
  content: '·';
  margin: 0 10px;
  opacity: .5;
}

.art-hero-img {
  margin: 0 0 52px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(37,99,235,.1);
}
.art-hero-img img {
  width: 100%;
  max-height: 560px;
  object-fit: cover;
}
/* Collapse empty captions left behind after deleting caption text, so no gap shows inside the rounded image card */
.art-hero-img figcaption:empty,
.art-hero-img figcaption:has(> br:only-child),
.art-body figure.art-inline-img figcaption:empty,
.art-body figure.art-inline-img figcaption:has(> br:only-child) {
  display: none;
}

.art-body { margin: 0 0 72px; }

/* Inline images injected by AI generator */
.art-body figure.art-inline-img {
  margin: 36px 0;
}
.art-body figure.art-inline-img img {
  width: 100%;
  border-radius: 12px;
  display: block;
  max-height: 520px;
  object-fit: cover;
  object-position: center top;
}

/* Share bar */
.art-share {
  margin: 0 0 48px;
  padding: 20px 24px;
  background: var(--blue-bg);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.art-share-label { font-size: .82rem; font-weight: 700; color: var(--gray-2); }
.art-share a {
  display: inline-block;
  padding: 7px 18px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 700;
  text-decoration: none;
  transition: opacity .15s;
}
.art-share a:hover { opacity: .85; text-decoration: none; }
.share-pinterest { background: #e60023; color: #fff; }
.share-facebook  { background: #1877f2; color: #fff; }
.share-twitter   { background: #000;    color: #fff; }

/* ── Prev / Next navigation ── */
.art-nav {
  display: flex;
  gap: 2px;
  margin: 0 0 56px;
}
.art-nav-side {
  flex: 1;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.art-nav-next { text-align: right; }
.art-nav-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--blue);
}
.art-nav-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  padding: 4px 0;
}
.art-nav-link:hover .art-nav-title { color: var(--blue); }
.art-nav-title {
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  transition: color .15s;
}

@media (max-width: 540px) {
  .art-nav { flex-direction: column; }
  .art-nav-next { text-align: left; padding-top: 8px; }
  .art-actions { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .article-wrap { padding: 16px 16px 56px; }
  .art-hero-img { margin: 0 0 32px; }
  .art-share { padding: 14px 16px; gap: 8px; }
  .art-share a { padding: 6px 12px; font-size: .76rem; }
  .art-share-label { width: 100%; }
}

/* ── Table of contents ── */
.art-toc {
  background: var(--blue-bg);
  border: 1px solid var(--blue-pale);
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px;
  margin: 0 0 36px;
}
.art-toc-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.art-toc-list {
  margin: 0; padding: 0 0 0 18px;
  display: flex; flex-direction: column; gap: 6px;
}
.art-toc-list li { font-size: .9rem; line-height: 1.5; }
.art-toc-list a { color: var(--gray-2); transition: color .15s; }
.art-toc-list a:hover { color: var(--blue); text-decoration: none; }

/* ── Category featured card ── */
.cat-featured-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  text-decoration: none; color: inherit;
  transition: box-shadow .22s, transform .18s;
  margin-bottom: 40px;
}
.cat-featured-card:hover { box-shadow: 0 16px 48px rgba(59,130,246,.18); transform: translateY(-2px); text-decoration: none; }
.cat-featured-img { position: relative; overflow: hidden; background: var(--blue-pale); }
.cat-featured-img img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform .4s; }
.cat-featured-card:hover .cat-featured-img img { transform: scale(1.04); }
.cat-featured-body { display: flex; flex-direction: column; justify-content: center; padding: 36px 40px; background: #fff; }
.cat-featured-label { font-size: .72rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.cat-featured-title { font-family: var(--font); font-size: clamp(1.3rem, 2.2vw, 1.8rem); font-weight: 900; line-height: 1.2; color: var(--dark); margin: 0 0 14px; }
.cat-featured-excerpt { font-size: .92rem; color: var(--gray-3); line-height: 1.7; margin: 0 0 18px; }
.cat-featured-meta { display: flex; gap: 14px; font-size: .78rem; color: var(--gray-4); margin-bottom: 22px; }
.cat-featured-cta { display: inline-block; color: #fff; font-size: .82rem; font-weight: 700; padding: 9px 22px; border-radius: 50px; align-self: flex-start; transition: opacity .15s; }
.cat-featured-card:hover .cat-featured-cta { opacity: .88; }
.cat-hero-count { font-size: .82rem; color: var(--gray-3); margin-top: 8px; }
.cat-more-label { font-family: var(--font); font-size: 1.1rem; font-weight: 700; color: var(--gray-2); margin: 0 0 24px; }

@media (max-width: 700px) {
  .cat-featured-card { grid-template-columns: 1fr; }
  .cat-featured-img { aspect-ratio: 16/7; }
  .cat-featured-body { padding: 24px 20px; }
  .cat-featured-excerpt { display: none; }
}

/* ── Related articles ── */
.related {
  padding-top: 56px;
  border-top: 2px solid var(--blue-pale);
}
.related-title {
  font-family: var(--font);
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 28px;
  color: var(--dark);
}
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.card-sm .card-img-wrap { aspect-ratio: 4/3; }
.card-sm .card-title { font-size: .95rem; }

/* ── Category hero ── */
.cat-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 50%, #f8faff 100%);
  border-bottom: 1px solid rgba(59,130,246,.1);
}
.cat-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(59,130,246,.07) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.cat-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 100% at 0% 50%, rgba(59,130,246,.08) 0%, transparent 70%);
  pointer-events: none;
}

.cat-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cat-hero-text { flex: 1; min-width: 0; }

.cat-hero .breadcrumb {
  margin-bottom: 12px;
  padding: 0 0 12px;
}

.cat-hero-title {
  font-family: var(--font);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 8px;
  color: var(--dark);
  position: relative;
  display: inline-block;
}
.cat-hero-title::after {
  content: '';
  display: block;
  height: 3px;
  width: 48px;
  border-radius: 2px;
  background: var(--cat-clr, var(--blue));
  margin-top: 8px;
}

.cat-hero-desc {
  font-size: .88rem;
  color: var(--gray-3);
  line-height: 1.6;
  margin: 0 0 12px;
  font-family: var(--font);
  font-style: italic;
  max-width: 480px;
}

.cat-hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(59,130,246,.08);
  border: 1px solid rgba(59,130,246,.18);
  color: var(--blue);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .5px;
  padding: 4px 12px;
  border-radius: 20px;
}

.cat-hero-deco {
  display: none;
}
.cat-hero-initial {
  font-family: var(--font);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--cat-clr, var(--blue));
  opacity: .7;
  user-select: none;
}

@media (max-width: 540px) {
  .cat-hero-inner { padding: 20px 16px; }
  .cat-hero-deco  { width: 64px; height: 64px; }
  .cat-hero-initial { font-size: 2.4rem; }
}

/* ── Status badges ── */
.status-published { color: #166534; background: #dcfce7; padding: 3px 10px; border-radius: 50px; font-size: .72rem; font-weight: 700; }
.status-draft     { color: #92400e; background: #fef3c7; padding: 3px 10px; border-radius: 50px; font-size: .72rem; font-weight: 700; }

/* ── Cat dot ── */
.cat-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; }

@media (max-width: 640px) {
  .art-title { font-size: 1.75rem; }
  .art-header { text-align: left; }
  .art-meta { justify-content: flex-start; }
  .related-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════
   MID-ARTICLE NEWSLETTER CTA
══════════════════════════════════════ */
.art-nl-cta {
  margin: 40px 0;
  background: linear-gradient(135deg, rgba(37,99,235,.08) 0%, rgba(59,130,246,.05) 100%);
  border: 1.5px solid rgba(37,99,235,.18);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  text-align: center;
}
.art-nl-eyebrow {
  display: block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.art-nl-title {
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 8px;
}
.art-nl-sub {
  color: var(--gray-3);
  font-size: .92rem;
  margin: 0 0 20px;
  line-height: 1.6;
}
.art-nl-row {
  display: flex;
  gap: 10px;
  max-width: 420px;
  margin: 0 auto 10px;
}
.art-nl-input {
  flex: 1;
  padding: 11px 18px;
  border: 1.5px solid var(--blue-pale);
  border-radius: 50px;
  font-family: var(--font);
  font-size: .9rem;
  background: #fff;
  color: var(--dark);
}
.art-nl-input:focus { outline: none; border-color: var(--blue); }
.art-nl-btn {
  padding: 11px 22px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-family: var(--font);
  font-weight: 700;
  font-size: .88rem;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .18s;
}
.art-nl-btn:hover { opacity: .88; }
.art-nl-note { font-size: .72rem; color: var(--gray-4); }
@media (max-width: 480px) {
  .art-nl-cta { padding: 28px 20px; }
  .art-nl-row { flex-direction: column; }
}

/* ══════════════════════════════════════
   AUTHOR BIO BOX
══════════════════════════════════════ */

/* FAQ section */
.art-faq {
  margin: 48px 0;
  border-top: 2px solid var(--blue-pale);
  padding-top: 32px;
}
.art-faq h2 { font-family: var(--font); font-size: 1.4rem; font-weight: 800; color: var(--dark); margin: 0 0 24px; }
.art-faq dl { display: flex; flex-direction: column; gap: 0; }
.art-faq .faq-q {
  font-weight: 700; font-size: .98rem; color: var(--dark);
  padding: 16px 0 8px; border-top: 1px solid var(--gray-7);
}
.art-faq .faq-q::before { content: 'Q  '; color: var(--blue); font-weight: 800; }
.art-faq .faq-a { font-size: .92rem; color: var(--gray-3); line-height: 1.7; margin: 0 0 8px; padding-left: 20px; }

.art-author-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin: 40px 0;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--blue-pale);
  border-left: 4px solid var(--blue);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  box-shadow: var(--shadow);
}
.art-author-avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--blue-pale);
}
.art-author-avatar-initial {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font);
  font-size: 1.4rem;
  font-weight: 700;
  flex-shrink: 0;
}
.art-author-info { flex: 1; }
.art-author-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}
.art-author-name {
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 6px;
}
.art-author-bio {
  font-size: .87rem;
  color: var(--gray-3);
  line-height: 1.65;
  margin: 0;
}
@media (max-width: 480px) {
  .art-author-box { flex-direction: column; gap: 14px; }
}

/* ══════════════════════════════════════
   TAG PILLS
══════════════════════════════════════ */
.art-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 4px;
}
.tag-pill {
  display: inline-block;
  padding: 4px 12px;
  border: 1.5px solid var(--gray-6);
  border-radius: 50px;
  font-size: .73rem;
  font-weight: 600;
  color: var(--gray-3);
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
}
.tag-pill:hover { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.04); }

/* ══════════════════════════════════════
   ARTICLES FILTER & SORT BAR
══════════════════════════════════════ */
.art-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-7);
}
.art-filter-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.art-filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1.5px solid var(--gray-6);
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--gray-3);
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
  white-space: nowrap;
}
.art-filter-pill:hover { border-color: var(--blue); color: var(--blue); }
.art-filter-pill.is-active {
  background: var(--pill-clr, var(--blue));
  border-color: var(--pill-clr, var(--blue));
  color: #fff;
}
.art-filter-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.art-filter-sort { display: flex; gap: 6px; }
.art-sort-pill {
  padding: 6px 14px;
  border: 1.5px solid var(--gray-6);
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--gray-3);
  text-decoration: none;
  transition: border-color .15s, color .15s;
  white-space: nowrap;
}
.art-sort-pill:hover { border-color: var(--blue); color: var(--blue); }
.art-sort-pill.is-active { border-color: var(--blue); color: var(--blue); background: rgba(37,99,235,.06); }

/* ══════════════════════════════════════
   MOBILE IMPROVEMENTS
══════════════════════════════════════ */

/* Filter bar: scrollable pills on mobile */
@media (max-width: 640px) {
  .art-filter-bar { flex-direction: column; align-items: stretch; gap: 10px; }
  .art-filter-cats { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; -ms-overflow-style: none; padding-bottom: 2px; }
  .art-filter-cats::-webkit-scrollbar { display: none; }
  .art-filter-sort { justify-content: flex-start; }
}

/* Article page: small phones */
@media (max-width: 420px) {
  .art-title { font-size: 1.45rem; line-height: 1.25; }
  .art-excerpt { font-size: .9rem; }
  .art-meta { flex-wrap: wrap; gap: 6px 12px; font-size: .78rem; }
  .art-cat-badge { font-size: .68rem; padding: 5px 12px; }
  .art-toc { padding: 16px 18px; margin-bottom: 28px; }
  .art-toc-list li { font-size: .84rem; }
  .art-body { margin-bottom: 40px; font-size: .96rem; }
  .art-author-name { font-size: .98rem; }
  .art-nl-cta { padding: 24px 16px; }
  .art-nl-title { font-size: 1.25rem; }
  .related-title { font-size: 1.15rem; }
  .related-grid { grid-template-columns: 1fr; }
  .art-share { flex-wrap: wrap; gap: 6px; }
}

/* Breadcrumb: truncate on small screens */
@media (max-width: 480px) {
  .breadcrumb { font-size: .74rem; }
  .art-breadcrumb { font-size: .74rem; }
}