/* ============================================================
   ARTICLE PAGE STYLES
   ============================================================ */

/* Article Hero */
.article-hero {
  background: var(--bg-card);
  border-bottom: 1px solid var(--rule);
  padding: 4rem 2rem 3rem;
  text-align: center;
}

.article-hero .breadcrumb {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.article-hero .breadcrumb a { color: var(--accent); }
.article-hero .breadcrumb a:hover { text-decoration: underline; }
.article-hero .breadcrumb span { color: var(--rule); }

.article-hero .article-cat {
  margin-bottom: 1rem;
}

.article-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--ink);
  max-width: 780px;
  margin: 0 auto 1.5rem;
  letter-spacing: -0.01em;
}

.article-hero .article-lead {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink-mid);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.65;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
  flex-wrap: wrap;
}
.article-meta-bar .sep { color: var(--rule); }

/* Article Layout */
.article-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 2rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

/* Article Body */
.article-body {
  min-width: 0;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 2.5rem 0 1rem;
  line-height: 1.15;
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  margin: 2rem 0 0.75rem;
}

.article-body p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--ink-mid);
  margin-bottom: 1.35rem;
}

.article-body p:first-child {
  font-size: 1.15rem;
  color: var(--ink);
}

.article-body ul,
.article-body ol {
  margin: 1rem 0 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.article-body ul li {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--ink-mid);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.72;
}
.article-body ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
  top: 0.2em;
}

.article-body ol {
  counter-reset: ol-counter;
}
.article-body ol li {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--ink-mid);
  padding-left: 2rem;
  position: relative;
  line-height: 1.72;
  counter-increment: ol-counter;
}
.article-body ol li::before {
  content: counter(ol-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  top: 0.1em;
}

/* Pull quote */
.article-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  background: rgba(107,112,82,0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article-body blockquote p {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink);
  margin: 0;
  line-height: 1.5;
}

/* Info box */
.info-box {
  background: var(--tag-bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}
.info-box .info-title {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.info-box p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Data table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-family: var(--font-body);
  font-size: 0.9rem;
}
.data-table th {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--rule);
  background: var(--tag-bg);
}
.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-mid);
  vertical-align: top;
}
.data-table tr:hover td { background: rgba(107,112,82,0.04); }

/* Step list */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 2rem 0;
}
.step-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 1rem;
  align-items: start;
}
.step-num {
  width: 44px;
  height: 44px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.step-content h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.35rem;
}
.step-content p {
  font-size: 0.9rem;
  margin: 0;
}

/* Article illustration placeholder */
.article-illus {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--tag-bg) 0%, var(--rule) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 3rem 1rem;
  margin: 2rem 0;
  color: var(--ink-light);
}
.article-illus svg {
  width: 56px;
  height: 56px;
  opacity: 0.4;
}
.article-illus span {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.6;
}

/* Sidebar */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: sticky;
  top: 90px;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.widget-title {
  font-family: var(--font-ui);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.related-item {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  transition: color var(--transition);
}
.related-item:last-child { border-bottom: none; padding-bottom: 0; }
.related-item .r-tag {
  font-family: var(--font-ui);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.25rem;
}
.related-item .r-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
  transition: color var(--transition);
}
.related-item:hover .r-title { color: var(--accent); }

/* Glossary widget */
.glossary-list { display: flex; flex-direction: column; gap: 0.85rem; }
.glossary-item {}
.glossary-term {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.2rem;
}
.glossary-def {
  font-size: 0.82rem;
  color: var(--ink-mid);
  line-height: 1.5;
}

/* Article footer nav */
.article-nav {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0 0;
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.article-nav-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-decoration: none;
  padding: 1.25rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}
.article-nav-item:hover { border-color: var(--accent); background: rgba(107,112,82,0.04); }
.article-nav-item.next { text-align: right; }
.article-nav-label {
  font-family: var(--font-ui);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-light);
}
.article-nav-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
}

/* ============================================================
   RESPONSIVE ARTICLE
   ============================================================ */
@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .article-sidebar { grid-template-columns: 1fr; }
  .article-nav { grid-template-columns: 1fr; }
  .article-nav-item.next { text-align: left; }
}