/* ═══════════════════════════════════════════
   BLOG — Index + Article styles
═══════════════════════════════════════════ */

.blog-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}

/* ══════════ INDEX PAGE ══════════ */

.blog-hero {
  padding: 120px 0 var(--space-section);
  border-bottom: 3px solid;
  border-image: var(--gradient-hero) 1;
}

.blog-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.blog-hero__title {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 16px;
}

.blog-hero__subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
}

/* Blog card grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-default);
  border: 1px solid var(--border-default);
  margin: var(--space-section) 0;
}

.blog-card {
  padding: 32px;
  background: var(--bg-primary);
  transition: background 0.2s;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  background: var(--bg-inset);
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.blog-card__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--border-default);
  color: var(--text-tertiary);
}

.blog-card__date {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

.blog-card__title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.blog-card__excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  flex: 1;
}

.blog-card__link {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}

.blog-card__link:hover {
  color: var(--text-primary);
}

/* Featured card (first post, spans full width) */
.blog-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.blog-card--featured .blog-card__visual {
  background: var(--bg-surface);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-card--featured .blog-card__visual svg {
  width: 100%;
  max-width: 360px;
  height: auto;
}


/* ══════════ ARTICLE PAGE ══════════ */

.article-hero {
  padding: 120px 0 48px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.article-hero__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 1px solid var(--border-default);
  color: var(--text-tertiary);
}

.article-hero__date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.article-hero__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
  max-width: 800px;
}

.article-hero__subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 640px;
}

/* Article body */
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-section) 48px;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 48px 0 16px;
  position: relative;
  padding-bottom: 12px;
}

.article-body h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--gradient-hero);
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 32px 0 12px;
}

.article-body p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.article-body strong {
  color: var(--text-primary);
}

.article-body ul, .article-body ol {
  padding-left: 24px;
  margin-bottom: 20px;
}

.article-body li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.article-body blockquote {
  border-left: 3px solid;
  border-image: var(--gradient-hero) 1;
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--bg-surface);
}

.article-body blockquote p {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0;
}

/* Inline charts/illustrations */
.article-chart {
  margin: 40px 0;
  border: 1px solid var(--border-default);
  padding: 24px;
  background: var(--bg-surface);
}

.article-chart svg {
  width: 100%;
  height: auto;
}

.article-chart__caption {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Data table in article */
.article-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border-default);
  margin: 32px 0;
  font-size: 14px;
}

.article-table th {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
}

.article-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.article-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
}

/* Article CTA */
.article-cta {
  margin: 48px 0;
  padding: 32px;
  border: 1px solid var(--border-default);
  border-top: 3px solid;
  border-image: var(--gradient-hero) 1;
  background: var(--bg-surface);
}

.article-cta h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.article-cta p {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

/* Back link */
.article-back {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
}

.article-back:hover { color: var(--text-primary); }


/* ══════════ RESPONSIVE ══════════ */

@media (max-width: 900px) {
  .blog-inner { padding: 0 24px; }
  .blog-grid { gap: 20px; }
  .blog-card--featured { gap: 24px; }
}

@media (max-width: 768px) {
  .blog-inner { padding: 0 16px; }
  .blog-hero { padding: 80px 0 48px; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-card--featured { grid-template-columns: 1fr; }
  .blog-card--featured .blog-card__visual { display: none; }
  .article-body { padding: var(--space-section) 16px; }
  .article-hero { padding: 80px 0 32px; }
}

@media (max-width: 480px) {
  .blog-inner { padding: 0 12px; }
  .article-body { padding: 40px 12px; }
}