/* ==========================================================================
   Article Page Styles - Indition Spam Killer
   ========================================================================== */

.article-hero {
  padding: 120px 0 48px;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--gray-200);
}

.article-hero .container {
  max-width: 1200px;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.article-breadcrumb a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color 0.2s;
}

.article-breadcrumb a:hover { color: var(--red); }

.article-breadcrumb span { color: var(--gray-300); }

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.article-category {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 20px;
}

.cat-email-security { background: #EFF6FF; color: #2563EB; }
.cat-how-to { background: #F0FDF4; color: #16A34A; }
.cat-features { background: #FFF7ED; color: #F79126; }
.cat-business { background: #F5F3FF; color: #7C3AED; }
.cat-industry { background: #FEF3C7; color: #D97706; }

.article-date, .article-read-time {
  font-size: 13px;
  color: var(--gray-400);
  font-weight: 500;
}

.article-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.article-hero .article-subtitle {
  font-size: 19px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Article Body */
.article-body {
  padding: 60px 0 80px;
}

.article-body .container {
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 60px;
  align-items: start;
}

.article-content h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--dark);
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  margin: 28px 0 8px;
}

.article-content p {
  font-size: 16px;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 0 0 20px 24px;
}

.article-content li {
  font-size: 16px;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 8px;
}

.article-content strong { color: var(--dark); }

.article-content code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--dark);
}

.article-content pre {
  background: var(--dark);
  border-radius: var(--radius-sm);
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
}

.article-content pre code {
  background: none;
  padding: 0;
  color: var(--gray-300);
  font-size: 13px;
  line-height: 1.7;
}

.article-content blockquote {
  border-left: 3px solid var(--red);
  padding: 4px 0 4px 20px;
  margin: 28px 0;
}

.article-content blockquote p {
  font-size: 17px;
  font-style: italic;
  color: var(--gray-600);
  margin: 0;
}

.callout {
  background: var(--red-light);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 28px 0;
  border-left: 3px solid var(--red);
}

.callout p {
  margin: 0;
  color: var(--gray-700);
  font-size: 15px;
}

.callout strong { color: var(--red); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.data-table th {
  background: var(--gray-50);
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
  color: var(--gray-700);
  border-bottom: 2px solid var(--gray-200);
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.data-table tr:last-child td { border-bottom: none; }

/* Sidebar */
.article-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-widget {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-widget h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray-500);
  margin-bottom: 16px;
}

.toc-list {
  list-style: none;
}

.toc-list li a {
  font-size: 13px;
  color: var(--gray-600);
  text-decoration: none;
  padding: 4px 0;
  display: block;
  line-height: 1.4;
  transition: color 0.2s;
  border-left: 2px solid transparent;
  padding-left: 10px;
}

.toc-list li a:hover {
  color: var(--red);
  border-left-color: var(--red);
}

.sidebar-cta {
  background: var(--dark);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.sidebar-cta h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.sidebar-cta p {
  font-size: 13px;
  color: var(--gray-400);
  margin-bottom: 16px;
  line-height: 1.5;
}

.sidebar-cta .btn { width: 100%; font-size: 13px; }

/* Related Articles */
.related-articles {
  padding: 60px 0;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

.related-articles .container { max-width: 1200px; }

.related-articles h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 28px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  transition: all 0.2s;
  display: block;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.related-card .blog-category {
  margin-bottom: 8px;
  display: inline-block;
}

.related-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 8px;
}

.related-card span {
  font-size: 12px;
  color: var(--gray-400);
}

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

  .article-sidebar { display: none; }

  .article-hero h1 { font-size: 30px; }

  .related-grid { grid-template-columns: 1fr; }
}