/* ============================================================
   ARTICLE PAGE STYLES
   Shared stylesheet for all article/guide pages
   ============================================================ */

/* ---- ARTICLE HERO ---- */
.article-hero {
  position: relative;
  min-height: 55vh;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  padding-bottom: var(--space-xl);
  padding-top: calc(var(--nav-height) + var(--space-lg));
}

.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26,26,26,0.3) 0%,
    rgba(26,26,26,0.7) 60%,
    rgba(26,26,26,0.92) 100%
  );
}

.article-hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.breadcrumb {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.05em;
}

.breadcrumb a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--colour-gold);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.article-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.8rem);
  color: var(--colour-white);
  line-height: 1.1;
  margin-bottom: var(--space-sm);
}

.article-hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  line-height: 1.6;
}

/* ---- ARTICLE MAIN LAYOUT ---- */
.article-main {
  background-color: var(--colour-warm-white);
  padding: var(--space-xl) 0;
}

.article-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
  align-items: start;
}

/* ---- ARTICLE BODY ---- */
.article-body {
  min-width: 0;
}

.article-lead {
  font-size: 1.15rem;
  color: var(--colour-text-primary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
  font-weight: 400;
}

.article-body h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--colour-charcoal);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
  line-height: 1.2;
}

.article-body h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--colour-gold-dark);
  margin-bottom: var(--space-sm);
}

.article-body h4 {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--colour-text-secondary);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.article-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--colour-text-secondary);
  margin-bottom: var(--space-sm);
}

.article-divider {
  border: none;
  border-top: 1px solid var(--colour-stone);
  margin: var(--space-lg) 0;
}

.article-list {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-sm);
}

.article-list li {
  padding: 0.5rem 0 0.5rem 1.5rem;
  position: relative;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--colour-text-secondary);
  border-bottom: 1px solid var(--colour-stone);
}

.article-list li:last-child {
  border-bottom: none;
}

.article-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.1rem;
  width: 6px;
  height: 6px;
  background-color: var(--colour-gold);
  border-radius: 50%;
}

.article-info-box {
  background-color: var(--colour-stone);
  border-left: 3px solid var(--colour-gold);
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-sm) 0;
}

.article-info-box p {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
  color: var(--colour-text-primary);
}

.article-info-box p:last-child {
  margin-bottom: 0;
}

.article-info-box a {
  color: var(--colour-gold-dark);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--transition-fast);
}

.article-info-box a:hover {
  text-decoration-color: var(--colour-gold-dark);
}

/* Quick reference tables */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.article-body th {
  background-color: var(--colour-charcoal);
  color: var(--colour-white);
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.05em;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.article-body td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--colour-stone);
  color: var(--colour-text-secondary);
  vertical-align: top;
}

.article-body tr:last-child td {
  border-bottom: none;
}

.article-body tr:nth-child(even) td {
  background-color: var(--colour-cream);
}

.article-body a {
  color: var(--colour-gold-dark);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--transition-fast);
}

.article-body a:hover {
  text-decoration-color: var(--colour-gold-dark);
}

/* ---- SIDEBAR ---- */
.article-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-md));
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sidebar-card {
  background-color: var(--colour-cream);
  border: 1px solid var(--colour-stone);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.sidebar-card h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--colour-charcoal);
  margin-bottom: var(--space-xs);
}

.sidebar-card p {
  font-size: 0.9rem;
  color: var(--colour-text-secondary);
  line-height: 1.6;
}

.sidebar-links {
  list-style: none;
  padding: 0;
  margin-top: var(--space-xs);
}

.sidebar-links li {
  border-bottom: 1px solid var(--colour-stone);
}

.sidebar-links li:last-child {
  border-bottom: none;
}

.sidebar-links a {
  display: block;
  padding: 0.6rem 0;
  font-size: 0.9rem;
  color: var(--colour-charcoal);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.sidebar-links a:hover {
  color: var(--colour-gold-dark);
  padding-left: 0.5rem;
}

/* ---- ARTICLE FOOTER CTA ---- */
.article-footer-cta {
  background-color: var(--colour-charcoal);
  color: var(--colour-white);
  text-align: center;
  padding: var(--space-xl) var(--space-md);
}

.article-footer-cta h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--colour-white);
  margin-bottom: var(--space-sm);
}

.article-footer-cta p {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 auto var(--space-md);
  line-height: 1.7;
}

/* ---- SIMPLE FOOTER ---- */
.article-simple-footer {
  background-color: #111;
  padding: var(--space-md);
  text-align: center;
}

.article-simple-footer p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

.article-simple-footer a {
  color: var(--colour-gold);
  text-decoration: none;
}

.article-simple-footer a:hover {
  text-decoration: underline;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .article-container {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }
}

@media (max-width: 600px) {
  .article-hero {
    min-height: 60vh;
    padding-bottom: var(--space-lg);
  }

  .article-hero-title {
    font-size: 2rem;
  }

  .article-body h2 {
    font-size: 1.5rem;
  }
}

/* ===== RELATED GUIDES SECTION (Topical Authority) ===== */
.related-guides-section {
    background: #0d0d0d;
    padding: 80px 0;
    border-top: 1px solid rgba(212,175,55,0.2);
}
.related-guides-section .section-eyebrow {
    color: #d4af37;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 12px;
}
.related-guides-section .section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: #ffffff;
    text-align: center;
    margin-bottom: 12px;
}
.related-guides-section .section-subtitle {
    color: rgba(255,255,255,0.6);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
    font-size: 1rem;
    line-height: 1.6;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}
.related-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(212,175,55,0.15);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.related-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(212,175,55,0.05) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.related-card:hover {
    border-color: rgba(212,175,55,0.5);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.related-card:hover::before { opacity: 1; }
.related-tag {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #d4af37;
}
.related-icon {
    font-size: 1.8rem;
    line-height: 1;
}
.related-card h4 {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.3;
}
.related-card p {
    color: rgba(255,255,255,0.55);
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
    flex: 1;
}
.related-cta {
    color: #d4af37;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 8px;
    transition: letter-spacing 0.2s ease;
}
.related-card:hover .related-cta { letter-spacing: 0.05em; }
.related-back-home {
    text-align: center;
    margin-top: 16px;
}
@media (max-width: 768px) {
    .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
    .related-grid { grid-template-columns: 1fr; }
}