/* ---- Article layout ---- */
.article-hero {
  background: var(--dark-bg);
  padding: 130px 0 60px;
}
.article-breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
  margin-bottom: 20px;
}
.article-breadcrumb a { color: var(--green-accent); transition: opacity .2s; }
.article-breadcrumb a:hover { opacity: .8; }
.article-breadcrumb span { color: rgba(255,255,255,.35); }
.article-cat {
  display: inline-block;
  background: var(--green-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 4px 14px;
  border-radius: 40px;
  margin-bottom: 18px;
}
.article-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  max-width: 820px;
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: rgba(255,255,255,.55);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---- Layout two-col ---- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  align-items: start;
  padding-top: 60px;
  padding-bottom: 80px;
}
.article-cover {
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: cover;
  object-position: center;
  border-radius: 14px;
  margin-bottom: 40px;
  display: block;
}
.article-intro {
  font-size: 18px;
  line-height: 1.75;
  color: #444;
  font-weight: 500;
  border-left: 4px solid var(--green-accent);
  padding-left: 20px;
  margin-bottom: 36px;
}
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark-bg);
  margin: 40px 0 16px;
}
.article-body p {
  font-size: 16px;
  color: #444;
  line-height: 1.85;
  margin-bottom: 16px;
}
.article-body ul {
  padding-left: 20px;
  margin-bottom: 20px;
}
.article-body ul li {
  font-size: 16px;
  color: #444;
  line-height: 1.7;
  margin-bottom: 8px;
  list-style: disc;
}

/* ---- Comparison table ---- */
.compare-table {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.compare-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.compare-table th {
  background: var(--green-primary);
  color: #fff;
  padding: 14px 18px;
  text-align: left;
  font-weight: 700;
}
.compare-table th:first-child { border-radius: 10px 0 0 0; }
.compare-table th:last-child  { border-radius: 0 10px 0 0; }
.compare-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  color: #444;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:nth-child(even) td { background: #f8f9fa; }

/* ---- Article CTA ---- */
.article-cta {
  background: var(--green-primary);
  border-radius: 14px;
  padding: 36px 40px;
  margin-top: 48px;
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  right: -50px; bottom: -50px;
}
.article-cta h3 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.article-cta p {
  color: rgba(255,255,255,.8);
  margin-bottom: 22px;
  font-size: 15px;
}

/* ---- Sidebar ---- */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 100px; }
.sidebar-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
}
.sidebar-card h4 {
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--dark-bg);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--green-accent);
}
.sidebar-card p { font-size: 14px; color: #666; margin-bottom: 16px; }
.sidebar-articles { list-style: none; }
.sidebar-articles li { border-bottom: 1px solid var(--border); }
.sidebar-articles li:last-child { border-bottom: none; }
.sidebar-articles a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 500;
  transition: color .2s;
}
.sidebar-articles a:hover { color: var(--green-accent); }
.sidebar-prices ul { list-style: none; }
.sidebar-prices li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.sidebar-prices li:last-child { border-bottom: none; }
.sidebar-prices span { color: #666; }
.sidebar-prices strong { color: var(--green-primary); font-weight: 700; }

/* ---- Responsive ---- */
@media (max-width: 1000px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}
@media (max-width: 768px) {
  .article-hero h1 { font-size: 28px; }
  .article-cover { max-height: 280px; }
  .article-cta { padding: 26px 24px; }
}