/* ── Blog article detail pages ───────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: hidden; }

/* Breadcrumb */
.article-breadcrumb {
  background: white; border-bottom: 1px solid var(--gray-200);
  padding: .7rem 2rem; display: flex; align-items: center;
  gap: .5rem; font-size: .78rem; color: var(--gray-600);
  max-width: 100%;
}
.article-breadcrumb a { color: var(--red); text-decoration: none; font-weight: 500; }
.article-breadcrumb a:hover { text-decoration: underline; }
.article-breadcrumb span { color: var(--gray-400); }

/* Hero */
.article-hero {
  position: relative; min-height: 360px;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden; background: var(--navy-2);
}
.article-hero img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .38;
}
.article-hero-body {
  position: relative;
  background: linear-gradient(to top, rgba(16,36,68,.97) 40%, transparent);
  padding: 3rem 2rem 2.5rem;
}
.article-hero-body-inner { max-width: 1100px; margin: 0 auto; }
.article-cat-badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .68rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .08em; padding: .25rem .85rem; border-radius: 2rem;
  font-family: 'Montserrat', sans-serif; margin-bottom: .85rem;
}
.badge-regl  { background: rgba(27,58,107,.7); color: #93c5fd; border: 1px solid rgba(147,197,253,.3); }
.badge-infra { background: rgba(234,88,12,.2); color: #fdba74; border: 1px solid rgba(253,186,116,.3); }
.badge-innov { background: rgba(22,163,74,.2); color: #86efac; border: 1px solid rgba(134,239,172,.3); }
.badge-eco   { background: rgba(13,148,136,.2); color: #5eead4; border: 1px solid rgba(94,234,212,.3); }
.badge-fin   { background: rgba(196,36,50,.25); color: #fca5a5; border: 1px solid rgba(252,165,165,.3); }
.badge-rh    { background: rgba(147,51,234,.2); color: #d8b4fe; border: 1px solid rgba(216,180,254,.3); }

.article-hero-body h1 {
  font-family: 'Montserrat', sans-serif; font-size: 1.8rem; font-weight: 900;
  color: white; line-height: 1.25; margin-bottom: .75rem;
}
.article-hero-meta {
  display: flex; flex-wrap: wrap; gap: 1rem;
  font-size: .78rem; color: rgba(255,255,255,.55);
}
.article-hero-meta span { display: flex; align-items: center; gap: .35rem; }
.article-hero-meta i { color: var(--red); }

/* Main layout */
.article-layout {
  max-width: 1100px; margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
  display: grid; grid-template-columns: 1fr 300px;
  gap: 2.5rem; align-items: start;
}

/* Article body */
.article-body { min-width: 0; }
.article-lead {
  font-size: 1.05rem; color: var(--navy); font-weight: 500; line-height: 1.75;
  border-left: 4px solid var(--red); padding-left: 1.25rem;
  margin-bottom: 2rem;
}
.article-body h2 {
  font-family: 'Montserrat', sans-serif; font-size: 1.2rem; font-weight: 900;
  color: var(--navy); margin: 2rem 0 .75rem; padding-bottom: .5rem;
  border-bottom: 2px solid var(--gray-100);
}
.article-body h3 {
  font-family: 'Montserrat', sans-serif; font-size: 1rem; font-weight: 800;
  color: var(--navy); margin: 1.5rem 0 .5rem;
}
.article-body p {
  font-size: .92rem; color: var(--gray-700); line-height: 1.8;
  margin-bottom: 1rem;
}
.article-body ul, .article-body ol {
  margin: .75rem 0 1.25rem 1.25rem; padding: 0;
}
.article-body li {
  font-size: .92rem; color: var(--gray-700); line-height: 1.7;
  margin-bottom: .4rem;
}
.article-body ul li::marker { color: var(--red); }

/* Key points box */
.article-keybox {
  background: var(--navy-2); border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem; margin: 1.75rem 0; color: white;
}
.article-keybox h4 {
  font-family: 'Montserrat', sans-serif; font-size: .85rem; font-weight: 900;
  text-transform: uppercase; letter-spacing: .07em;
  color: var(--red); margin-bottom: 1rem;
}
.article-keybox ul { margin: 0; padding: 0; list-style: none; }
.article-keybox li {
  display: flex; align-items: flex-start; gap: .7rem;
  font-size: .88rem; color: rgba(255,255,255,.82); line-height: 1.6;
  margin-bottom: .65rem; padding-bottom: .65rem;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.article-keybox li:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.article-keybox li i { color: var(--red); flex-shrink: 0; margin-top: .25rem; font-size: .85rem; }

/* Info/warning/tip boxes */
.article-infobox {
  display: flex; gap: .85rem; align-items: flex-start;
  padding: 1rem 1.25rem; border-radius: var(--radius);
  margin: 1.25rem 0;
}
.article-infobox.tip { background: #EFF6FF; border-left: 4px solid #3B82F6; }
.article-infobox.warn { background: #FFFBEB; border-left: 4px solid #F59E0B; }
.article-infobox.success { background: #F0FDF4; border-left: 4px solid #22C55E; }
.article-infobox i { flex-shrink: 0; margin-top: .1rem; font-size: 1rem; }
.article-infobox.tip i { color: #3B82F6; }
.article-infobox.warn i { color: #F59E0B; }
.article-infobox.success i { color: #22C55E; }
.article-infobox p { font-size: .85rem; line-height: 1.6; margin: 0; }
.article-infobox.tip p { color: #1E40AF; }
.article-infobox.warn p { color: #92400E; }
.article-infobox.success p { color: #166534; }

/* Data table */
.article-table { width: 100%; border-collapse: collapse; margin: 1.25rem 0 1.75rem; font-size: .85rem; }
.article-table thead th {
  background: var(--navy); color: white; padding: .6rem 1rem;
  text-align: left; font-family: 'Montserrat', sans-serif; font-size: .78rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
}
.article-table tbody td { padding: .6rem 1rem; border-bottom: 1px solid var(--gray-200); color: var(--gray-700); }
.article-table tbody tr:nth-child(even) td { background: var(--gray-50); }
.article-table tbody tr:hover td { background: var(--red-light); }

/* Author / share bar */
.article-footer-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 0; border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200); margin: 2rem 0;
  flex-wrap: wrap; gap: 1rem;
}
.article-author { display: flex; align-items: center; gap: .85rem; }
.article-author-av {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg,var(--navy),var(--navy-3));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-size: .85rem; font-weight: 900;
  color: white; flex-shrink: 0;
}
.article-author-name { font-size: .85rem; font-weight: 700; color: var(--navy); }
.article-author-role { font-size: .72rem; color: var(--gray-500); }
.article-share { display: flex; align-items: center; gap: .5rem; }
.article-share span { font-size: .78rem; color: var(--gray-600); font-weight: 600; }
.share-btn {
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--gray-200); color: var(--gray-600);
  text-decoration: none; font-size: .85rem; transition: var(--transition);
}
.share-btn:hover { border-color: var(--red); color: var(--red); }

/* Related articles */
.related-articles { margin-top: 2.5rem; }
.related-articles h3 {
  font-family: 'Montserrat', sans-serif; font-size: .9rem; font-weight: 900;
  text-transform: uppercase; letter-spacing: .06em; color: var(--navy);
  margin-bottom: 1rem;
}
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.related-card {
  background: white; border: 1px solid var(--gray-200);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition); text-decoration: none;
}
.related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--red); }
.related-card img { width: 100%; height: 110px; object-fit: cover; display: block; }
.related-card-body { padding: .75rem; }
.related-card-body h4 {
  font-family: 'Montserrat', sans-serif; font-size: .78rem; font-weight: 800;
  color: var(--navy); line-height: 1.3; margin-bottom: .3rem;
}
.related-card-body span { font-size: .68rem; color: var(--gray-500); }

/* ── Sidebar (reuse blog.html sidebar styles) ─── */
.article-sidebar { position: sticky; top: 75px; }
.sidebar-widget {
  background: white; border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.sidebar-widget-head {
  background: var(--navy); color: white; padding: .85rem 1.25rem;
  font-family: 'Montserrat', sans-serif; font-size: .8rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: .07em;
  display: flex; align-items: center; gap: .5rem;
}
.sidebar-widget-head i { color: var(--red); font-size: .9rem; }
.sidebar-widget-body { padding: 1.1rem 1.25rem; }

.sb-cat-list { list-style: none; padding: 0; margin: 0; }
.sb-cat-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: .55rem 0; border-bottom: 1px solid var(--gray-100);
  font-size: .82rem;
}
.sb-cat-list li:last-child { border-bottom: none; }
.sb-cat-list li a {
  color: var(--gray-700); text-decoration: none; font-weight: 500;
  display: flex; align-items: center; gap: .5rem; flex: 1;
  transition: var(--transition);
}
.sb-cat-list li a i { font-size: .7rem; color: var(--red); }
.sb-cat-list li:hover a { color: var(--red); }
.sb-cat-count {
  background: var(--gray-100); color: var(--gray-600);
  font-size: .65rem; font-weight: 700; padding: .1rem .45rem; border-radius: 2rem;
}

.sb-recent-list { list-style: none; padding: 0; margin: 0; }
.sb-recent-item {
  display: flex; gap: .75rem; padding: .65rem 0;
  border-bottom: 1px solid var(--gray-100); align-items: flex-start;
}
.sb-recent-item:last-child { border-bottom: none; }
.sb-recent-item img { width: 56px; height: 48px; object-fit: cover; border-radius: var(--radius); flex-shrink: 0; }
.sb-recent-text a {
  display: block; font-size: .78rem; font-weight: 700; color: var(--navy);
  text-decoration: none; line-height: 1.3; margin-bottom: .25rem; transition: var(--transition);
}
.sb-recent-text a:hover { color: var(--red); }
.sb-recent-text span { font-size: .68rem; color: var(--gray-500); }

.sb-newsletter p { font-size: .78rem; color: var(--gray-600); line-height: 1.55; margin-bottom: .85rem; }
.sb-newsletter input[type="email"] {
  width: 100%; padding: .6rem .85rem; border: 1.5px solid var(--gray-200);
  border-radius: var(--radius); font-family: inherit; font-size: .82rem;
  color: var(--navy); margin-bottom: .6rem;
}
.sb-newsletter input[type="email"]::placeholder { color: var(--gray-400); }

.sb-tools-cta {
  background: linear-gradient(135deg,var(--navy-2),var(--navy));
  border-radius: var(--radius-lg); padding: 1.5rem 1.25rem;
  text-align: center; margin-bottom: 1.25rem;
}
.sb-tools-cta .cta-icon { font-size: 2rem; margin-bottom: .5rem; display: block; }
.sb-tools-cta h4 {
  font-family: 'Montserrat', sans-serif; font-size: .9rem; font-weight: 900;
  color: white; margin-bottom: .4rem;
}
.sb-tools-cta p { font-size: .75rem; color: rgba(255,255,255,.65); margin-bottom: 1rem; line-height: 1.5; }
.sb-tools-cta a {
  display: inline-block; background: var(--red); color: white;
  padding: .55rem 1.25rem; border-radius: var(--radius);
  font-size: .8rem; font-weight: 700; text-decoration: none; transition: var(--transition);
}
.sb-tools-cta a:hover { background: var(--red-dark); }

.sb-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.sb-tag {
  font-size: .7rem; font-weight: 600; padding: .25rem .65rem;
  border-radius: 2rem; background: var(--gray-100); color: var(--gray-700);
  text-decoration: none; transition: var(--transition);
}
.sb-tag:hover { background: var(--red-light); color: var(--red); }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .related-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .article-breadcrumb { padding: .65rem 1rem; }
  .article-layout { padding: 1.5rem 1rem 3rem; gap: 2rem; }
  .article-hero { min-height: 260px; }
  .article-hero-body { padding: 2rem 1.25rem 1.5rem; }
  .article-hero-body h1 { font-size: 1.35rem; }
  .related-grid { grid-template-columns: 1fr; }
}