/* ══════════════════════════════════════════════════════
   BLOG — Article typography, CTA blocks, index cards
   ══════════════════════════════════════════════════════ */

/* ── Blog Index ────────────────────────────────────── */
.blog-index {
  max-width: var(--lp-max-w);
  margin: 0 auto;
  padding: 48px 32px 80px;
}
.blog-index-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--lp-text);
  letter-spacing: -0.4px;
  margin-bottom: 8px;
}
.blog-index-sub {
  font-size: 16px;
  color: var(--lp-text-muted);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 600px;
}
.blog-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.blog-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--lp-white);
  border: 1px solid var(--lp-border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s;
}
.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  border-color: rgba(67,97,238,0.3);
}
.blog-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--lp-text);
  margin-bottom: 8px;
  line-height: 1.35;
}
.blog-card-excerpt {
  font-size: 14px;
  color: var(--lp-text-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.blog-card-meta {
  font-size: 12px;
  color: var(--lp-text-faint);
}

/* ── Article Layout ────────────────────────────────── */
.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 32px 80px;
}

/* ── Article Typography ────────────────────────────── */
.blog-article h1 {
  font-size: 34px;
  font-weight: 700;
  color: var(--lp-text);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 12px;
}
.blog-article-meta {
  font-size: 13px;
  color: var(--lp-text-faint);
  margin-bottom: 32px;
}
.blog-article h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--lp-text);
  margin: 40px 0 16px;
  letter-spacing: -0.2px;
}
.blog-article h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--lp-text);
  margin: 32px 0 12px;
}
.blog-article p {
  font-size: 16px;
  line-height: 1.75;
  color: #374151;
  margin-bottom: 20px;
}
.blog-article ul, .blog-article ol {
  margin: 0 0 20px 24px;
  font-size: 16px;
  line-height: 1.75;
  color: #374151;
}
.blog-article li {
  margin-bottom: 6px;
}
.blog-article strong {
  font-weight: 600;
  color: var(--lp-text);
}
.blog-article a {
  color: var(--lp-accent);
  text-decoration: none;
  font-weight: 500;
}
.blog-article a:hover {
  text-decoration: underline;
}
.blog-article a.lp-cta-btn,
.blog-cta a.lp-cta-btn {
  color: #fff;
  text-decoration: none;
}
.blog-article blockquote {
  border-left: 3px solid var(--lp-accent);
  margin: 24px 0;
  padding: 16px 20px;
  background: #f8f9fc;
  border-radius: 0 8px 8px 0;
  font-size: 15px;
  color: #4b5563;
  line-height: 1.65;
}
.blog-article blockquote p {
  margin-bottom: 0;
}

/* ── Comparison Table ──────────────────────────────── */
.blog-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.blog-article th {
  text-align: left;
  padding: 10px 14px;
  background: #f3f4f6;
  font-weight: 600;
  color: var(--lp-text);
  border-bottom: 2px solid var(--lp-border);
}
.blog-article td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--lp-border);
  color: #374151;
}
.blog-article tr:last-child td {
  border-bottom: none;
}

/* ── Key Stat Highlight ────────────────────────────── */
.blog-stat-highlight {
  display: flex;
  gap: 24px;
  margin: 28px 0;
  padding: 20px 24px;
  background: #eef2ff;
  border-radius: 10px;
}
.blog-stat-item {
  text-align: center;
  flex: 1;
}
.blog-stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--lp-accent);
  line-height: 1;
  margin-bottom: 4px;
}
.blog-stat-label {
  font-size: 12px;
  color: var(--lp-text-muted);
}

/* ── Callout / Tip Box ─────────────────────────────── */
.blog-callout {
  margin: 28px 0;
  padding: 20px 24px;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: #374151;
}
.blog-callout-title {
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}
.blog-callout--insight {
  background: #eef2ff;
  border-left: 4px solid var(--lp-accent);
}
.blog-callout--insight .blog-callout-title { color: var(--lp-accent); }
.blog-callout--warning {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
}
.blog-callout--warning .blog-callout-title { color: #b45309; }
.blog-callout--math {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
}
.blog-callout--math .blog-callout-title { color: #15803d; }
.blog-callout p { margin-bottom: 8px; }
.blog-callout p:last-child { margin-bottom: 0; }

/* ── Before/After Comparison ──────────────────────── */
.blog-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 28px 0;
}
.blog-compare-col {
  padding: 20px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.6;
}
.blog-compare-col--before {
  background: #fef2f2;
  border: 1px solid #fecaca;
}
.blog-compare-col--after {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}
.blog-compare-label {
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}
.blog-compare-col--before .blog-compare-label { color: #dc2626; }
.blog-compare-col--after .blog-compare-label { color: #16a34a; }
.blog-compare-col ul {
  margin: 0 0 0 16px;
  padding: 0;
  color: #374151;
}
.blog-compare-col li { margin-bottom: 6px; }

/* ── CTA Block ─────────────────────────────────────── */
.blog-cta {
  margin: 40px 0;
  padding: 32px;
  background: linear-gradient(135deg, #eef2ff 0%, #f0f4ff 100%);
  border: 1px solid rgba(67,97,238,0.15);
  border-radius: 14px;
  text-align: center;
}
.blog-cta h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--lp-text);
  margin: 0 0 8px;
}
.blog-cta p {
  font-size: 15px;
  color: var(--lp-text-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}
.blog-cta .lp-cta-btn {
  font-size: 15px;
  padding: 12px 28px;
}

/* ── Related Articles ──────────────────────────────── */
.blog-related {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--lp-border);
}
.blog-related h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--lp-text);
  margin: 0 0 20px;
}
.blog-related-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.blog-related-link {
  display: block;
  padding: 16px 20px;
  background: var(--lp-white);
  border: 1px solid var(--lp-border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--lp-accent);
  font-size: 15px;
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}
.blog-related-link:hover {
  border-color: rgba(67,97,238,0.3);
  background: #fafbff;
}

/* ── Blog Responsive ───────────────────────────────── */
@media (max-width: 768px) {
  .blog-index { padding: 36px 24px 64px; }
  .blog-index-title { font-size: 26px; }
  .blog-cards { grid-template-columns: 1fr; }
  .blog-article { padding: 32px 24px 64px; }
  .blog-article h1 { font-size: 28px; }
  .blog-article h2 { font-size: 20px; }
  .blog-stat-highlight { flex-direction: column; gap: 16px; }
  .blog-compare { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .blog-index { padding: 28px 16px 48px; }
  .blog-article { padding: 24px 16px 48px; }
  .blog-article h1 { font-size: 24px; }
  .blog-article p { font-size: 15px; }
  .blog-cta { padding: 24px 20px; }
}