/* ===================================================
   ARTICLE.CSS — Pique  |  Article-specific styles
   Extends style.css — do not duplicate base tokens
   =================================================== */

/* ===== READING PROGRESS BAR ===== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  width: 0%;
  height: 3px;
  background: var(--terra);
  transition: width .1s linear;
}

/* ===== ARTICLE FULL-WIDTH HERO IMAGE ===== */
.article-hero-image {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 48px;
  display: block;
}

/* ===== ARTICLE SERIES NAVIGATION ===== */
.series-nav {
  background: var(--blue-light);
  border: 1px solid #c2d9ee;
  border-radius: var(--radius);
  padding: 22px 28px;
  margin: 36px 0;
}
.series-nav-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: 10px;
}
.series-nav-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 14px;
}
.series-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.series-nav-list li {
  padding: 7px 0;
  border-bottom: 1px solid rgba(26,61,107,.12);
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.series-nav-list li:last-child { border-bottom: none; }
.series-nav-list li.current { font-weight: 700; color: var(--blue-deep); }
.series-nav-list li.current::before {
  content: '▶';
  font-size: .65rem;
  color: var(--terra);
}
.series-nav-list a { color: var(--blue-mid); }
.series-nav-list a:hover { color: var(--terra); }

/* ===== TABLE OF CONTENTS ===== */
.toc {
  background: var(--light-gray);
  border-left: 3px solid var(--blue-deep);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 28px;
  margin: 32px 0 40px;
}
.toc-title {
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 700;
  color: var(--blue-deep);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc-counter;
}
.toc-list li {
  counter-increment: toc-counter;
  padding: 6px 0;
  font-size: .88rem;
  border-bottom: 1px dashed var(--border);
  display: flex;
  gap: 10px;
}
.toc-list li:last-child { border-bottom: none; }
.toc-list li::before {
  content: counter(toc-counter) ".";
  font-weight: 700;
  color: var(--terra);
  flex-shrink: 0;
  min-width: 20px;
}
.toc-list a { color: var(--dark); }
.toc-list a:hover { color: var(--terra); }

/* ===== ARTICLE SHARE BAR ===== */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 40px 0;
  flex-wrap: wrap;
}
.share-label {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-right: 4px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--dark);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  text-decoration: none;
}
.share-btn:hover {
  background: var(--blue-deep);
  border-color: var(--blue-deep);
  color: var(--white);
}
.share-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ===== ARTICLE FOOTER META (tags + next/prev) ===== */
.article-footer-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}
.article-footer-meta-tags {}
.article-footer-meta-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.article-footer-nav-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mid-gray);
}
.article-footer-nav-title {
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 600;
  color: var(--dark);
  text-align: right;
  max-width: 240px;
  line-height: 1.3;
}
.article-footer-nav-title a:hover { color: var(--terra); }

/* ===== RELATED ARTICLES GRID ===== */
.related-articles {
  padding: 64px 0;
  background: var(--light-gray);
}
.related-articles-title {
  font-family: var(--font-head);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 32px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ===== ARTICLE INDEX PAGE (articles.php) ===== */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 52px;
  align-items: start;
}
.articles-main-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.article-list-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.article-list-item:first-child { padding-top: 0; }
.article-list-thumb {
  width: 200px;
  aspect-ratio: 3/2;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.article-list-body {}
.article-list-category {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 6px;
  display: block;
}
.article-list-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
  margin-bottom: 8px;
}
.article-list-title a:hover { color: var(--blue-deep); }
.article-list-excerpt {
  font-size: .91rem;
  color: var(--mid-gray);
  line-height: 1.6;
  margin-bottom: 12px;
}
.article-list-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .79rem;
  color: var(--mid-gray);
}

/* ===== ARTICLES SIDEBAR ===== */
.articles-sidebar {}
.articles-sidebar-widget {
  margin-bottom: 36px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.articles-sidebar-title {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

/* ===== FEATURED ARTICLE CARD (large) ===== */
.article-card-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  transition: box-shadow var(--transition);
}
.article-card-featured:hover { box-shadow: var(--shadow-md); }
.article-card-featured-img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  display: block;
}
.article-card-featured-body {
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.article-card-featured-category {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 10px;
}
.article-card-featured-title {
  font-family: var(--font-head);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 14px;
}
.article-card-featured-title a:hover { color: var(--blue-deep); }
.article-card-featured-excerpt {
  font-size: .93rem;
  color: var(--mid-gray);
  line-height: 1.65;
  margin-bottom: 20px;
}

/* ===== AUTHOR BIO BLOCK (inside article) ===== */
.author-bio-block {
  display: flex;
  gap: 22px;
  padding: 28px;
  background: var(--light-gray);
  border-radius: var(--radius);
  margin: 48px 0 0;
  align-items: flex-start;
}
.author-bio-block-photo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--white);
  box-shadow: var(--shadow-sm);
}
.author-bio-block-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.author-bio-block-role {
  font-size: .78rem;
  font-weight: 600;
  color: var(--terra);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.author-bio-block-text {
  font-size: .88rem;
  color: var(--mid-gray);
  line-height: 1.65;
  margin: 0;
}

/* ===== HIGHLIGHT / DEFINITION BOX ===== */
.definition-box {
  border: 1px solid var(--border);
  border-top: 3px solid var(--blue-deep);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 20px 24px;
  margin: 28px 0;
  background: var(--white);
}
.definition-box-term {
  font-family: var(--font-head);
  font-size: .88rem;
  font-weight: 700;
  color: var(--blue-deep);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.definition-box p {
  font-size: .92rem;
  color: var(--mid-gray);
  margin: 0;
  line-height: 1.6;
}

/* ===== ARTICLE INLINE CALLOUT (tip / warning / fact) ===== */
.callout {
  display: flex;
  gap: 16px;
  padding: 18px 22px;
  border-radius: var(--radius);
  margin: 28px 0;
  align-items: flex-start;
}
.callout-tip    { background: #e8f5e9; border-left: 4px solid #43a047; }
.callout-note   { background: var(--blue-light); border-left: 4px solid var(--blue-mid); }
.callout-warn   { background: #fff8e1; border-left: 4px solid #f9a825; }
.callout-icon   { font-size: 1.1rem; line-height: 1.4; flex-shrink: 0; }
.callout-body   { flex: 1; }
.callout-body strong { display: block; font-size: .88rem; margin-bottom: 4px; color: var(--dark); }
.callout-body p { font-size: .88rem; color: var(--mid-gray); margin: 0; line-height: 1.55; }

/* ===== KEY FACTS ROW (inside article) ===== */
.key-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 36px 0;
}
.key-fact {
  background: var(--white);
  padding: 24px 20px;
  text-align: center;
}
.key-fact-number {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--blue-deep);
  line-height: 1;
  margin-bottom: 6px;
}
.key-fact-label {
  font-size: .8rem;
  color: var(--mid-gray);
  line-height: 1.4;
}

/* ===== ARTICLE FILTER BAR ===== */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.filter-bar-label {
  font-size: .82rem;
  color: var(--mid-gray);
}
.filter-bar-label strong { color: var(--dark); }
.filter-sort {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
}
.filter-sort select {
  padding: 7px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  font-size: .85rem;
  color: var(--dark);
  outline: none;
  cursor: pointer;
}
.filter-sort select:focus { border-color: var(--blue-deep); }

/* ===== ARTICLE FLOATING SIDEBAR TOC ===== */
.toc-sticky {
  position: sticky;
  top: 88px;
}

/* ===== ARTICLE CONTENT — extended list styles ===== */
.article-content ol {
  list-style: decimal;
  margin: 1.2rem 0 1.4rem 1.6rem;
}
.article-content ol li { margin-bottom: .6rem; }
.article-content ul { list-style: disc; }
.article-content ul li::marker { color: var(--terra); }
.article-content a {
  color: var(--blue-mid);
  text-decoration: underline;
  text-decoration-color: rgba(42,82,152,.3);
  text-underline-offset: 3px;
  transition: color var(--transition), text-decoration-color var(--transition);
}
.article-content a:hover {
  color: var(--terra);
  text-decoration-color: var(--terra);
}
.article-content strong { color: var(--dark); font-weight: 700; }
.article-content em { font-style: italic; color: var(--dark); }
.article-content hr {
  border: none;
  border-top: 2px solid var(--border);
  margin: 40px 0;
}
.article-content code {
  background: var(--light-gray);
  border-radius: 3px;
  padding: 2px 7px;
  font-size: .88em;
  color: var(--blue-deep);
  font-family: 'Courier New', monospace;
}

/* ===== INTRO DROP CAP ===== */
.article-content.has-dropcap > p:first-of-type::first-letter {
  font-family: var(--font-head);
  font-size: 3.8rem;
  font-weight: 700;
  float: left;
  line-height: .85;
  margin-right: 8px;
  margin-top: 4px;
  color: var(--blue-deep);
}

/* ===== SECTION ANCHOR LINKS ===== */
.anchor-heading {
  scroll-margin-top: 88px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .related-grid {
    grid-template-columns: 1fr 1fr;
  }
  .article-card-featured {
    grid-template-columns: 1fr;
  }
  .article-card-featured-img {
    min-height: 220px;
    width: 100%;
    height: 220px;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .key-facts {
    grid-template-columns: 1fr 1fr;
  }
  .toc-sticky {
    position: static;
  }
}

@media (max-width: 680px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
  .article-list-item {
    grid-template-columns: 1fr;
  }
  .article-list-thumb {
    width: 100%;
    aspect-ratio: 16/9;
  }
  .key-facts {
    grid-template-columns: 1fr;
  }
  .share-bar {
    gap: 8px;
  }
  .author-bio-block {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .article-footer-meta {
    flex-direction: column;
  }
  .article-footer-meta-nav {
    align-items: flex-start;
  }
  .article-footer-nav-title {
    text-align: left;
  }
  .series-nav-list li {
    font-size: .85rem;
  }
}