/* ============================================================
   BLOG PAGE — DT Malware Safe
   ============================================================ */

.blog-hero {
  padding-block: var(--space-16) var(--space-10);
  text-align: center;
  background: linear-gradient(180deg, var(--primary-50) 0%, var(--bg) 100%);
}

/* ── Filter bar ───────────────────────────────────────────── */
.blog-filters {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}
.filter-btn {
  padding: 0.4rem 1rem;
  font-size: 0.875rem;
  font-family: var(--font-heading);
  font-weight: 500;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--dur-fast);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ── Blog layout with sidebar ─────────────────────────────── */
.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--space-10);
  align-items: start;
}

/* ── Blog Grid ────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--dur) var(--ease);
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.blog-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.blog-card-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.4) 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
}
.blog-card-img-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  text-shadow: 0 8px 16px rgba(0,0,0,0.1);
  transition: transform var(--dur-slow) var(--ease);
}
.blog-card:hover .blog-card-img-inner {
  transform: scale(1.15) rotate(4deg);
}

/* Card image backgrounds by category */
.blog-card-img.guide      { background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%); }
.blog-card-img.threats    { background: linear-gradient(135deg, #FEF2F2 0%, #FEE2E2 100%); }
.blog-card-img.tips       { background: linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%); }
.blog-card-img.comparison { background: linear-gradient(135deg, #FEFCE8 0%, #FEF9C3 100%); }

.blog-card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex: 1;
}
.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.blog-read-time {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}
.blog-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  text-decoration: none;
  transition: color var(--dur-fast);
}
.blog-card-title:hover {
  color: var(--primary);
  text-decoration: none;
}
.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}
.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.blog-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.author-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
}
.read-more-link {
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-heading);
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--dur-fast);
}
.read-more-link:hover {
  gap: var(--space-2);
  text-decoration: none;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.blog-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: 88px;
}
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.sidebar-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.sidebar-posts { display: flex; flex-direction: column; gap: var(--space-3); }
.sidebar-post {
  display: flex;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  transition: color var(--dur-fast);
}
.sidebar-post:hover { color: var(--primary); text-decoration: none; }
.sidebar-post-num {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--border-strong);
  line-height: 1;
  flex-shrink: 0;
}
.newsletter-form { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.tags-cloud { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ── Blog Post (article) ──────────────────────────────────── */
.post-hero {
  padding-block: var(--space-12) var(--space-8);
  background: linear-gradient(180deg, var(--primary-50) 0%, var(--bg) 100%);
}
.post-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--space-10);
  align-items: start;
  padding-block: var(--space-12);
}
.post-article { min-width: 0; }
.post-header { margin-bottom: var(--space-8); }
.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.post-author-block {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--bg-alt);
  border-radius: var(--radius);
  margin-block: var(--space-8);
}
.author-avatar-lg {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.author-info .author-name { font-weight: 600; color: var(--text); }
.author-info .author-title { font-size: 0.8125rem; color: var(--text-muted); }

/* Article content */
.post-content { line-height: 1.8; }
.post-content h2 {
  font-size: 1.5rem;
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  scroll-margin-top: 88px;
}
.post-content h3 { font-size: 1.125rem; margin-top: var(--space-6); margin-bottom: var(--space-3); }
.post-content p  { margin-bottom: var(--space-4); color: var(--text-secondary); }
.post-content ul, .post-content ol { margin-bottom: var(--space-4); padding-left: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); }
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li { color: var(--text-secondary); }

/* Callout boxes */
.callout {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  margin-block: var(--space-6);
  font-size: 0.9375rem;
}
.callout.tip     { background: var(--safe-light);    border-left: 4px solid var(--safe); }
.callout.warning { background: var(--warning-light); border-left: 4px solid var(--warning); }
.callout.danger  { background: var(--danger-light);  border-left: 4px solid var(--danger); }
.callout.info    { background: var(--primary-50);    border-left: 4px solid var(--primary); }
.callout-icon { font-size: 1.25rem; flex-shrink: 0; }
.callout-body p { margin-bottom: 0; }

/* Table of Contents */
.toc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: sticky;
  top: 88px;
  box-shadow: var(--shadow-sm);
}
.toc-title { font-family: var(--font-heading); font-size: 0.875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: var(--space-3); }
.toc-list { display: flex; flex-direction: column; gap: var(--space-2); }
.toc-list a { font-size: 0.875rem; color: var(--text-muted); text-decoration: none; padding: 2px 0; border-left: 2px solid transparent; padding-left: var(--space-3); transition: color var(--dur-fast), border-color var(--dur-fast); }
.toc-list a:hover, .toc-list a.active { color: var(--primary); border-left-color: var(--primary); }

/* Related posts */
.related-posts { margin-top: var(--space-12); padding-top: var(--space-8); border-top: 1px solid var(--border); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-6); }

/* In-article CTA */
.post-cta {
  background: linear-gradient(135deg, var(--primary) 0%, #1D4ED8 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  margin-block: var(--space-10);
}
.post-cta h3 { color: #fff; margin-bottom: var(--space-2); }
.post-cta p  { opacity: 0.85; margin-bottom: var(--space-4); }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.breadcrumb a { color: var(--text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); }

@media (max-width: 1024px) {
  .blog-layout   { grid-template-columns: 1fr; }
  .post-layout   { grid-template-columns: 1fr; }
  .blog-sidebar  { position: static; }
  .toc-card      { position: static; }
  .blog-grid     { grid-template-columns: 1fr; }
  .related-grid  { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .related-grid { grid-template-columns: 1fr; }
}