/* ========================================
   Blog Page
   ======================================== */

.page-hero--blog {
  padding: 156px 48px 56px;
  max-width: 1400px;
  margin: 0 auto;
}

.blog-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(280px, 360px);
  gap: 40px;
  align-items: end;
}

.page-title {
  font-family: var(--font-serif);
  font-size: clamp(44px, 6vw, 84px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 20px;
}

.page-desc {
  max-width: 680px;
  font-size: 18px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.reading-index {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: grid;
  gap: 12px;
}

.reading-index-title,
.aside-card-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.reading-index a {
  display: block;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  padding: 10px 0;
  border-top: 1px solid var(--border-light);
}

.reading-index a:first-of-type {
  border-top: none;
}

.blog-featured {
  padding: 0 48px;
  max-width: 1400px;
  margin: 0 auto 40px;
}

.featured-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 48px 52px;
  position: relative;
}

.featured-card::before {
  content: "";
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 24px;
  width: 2px;
  background: var(--text);
}

.featured-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-left: 24px;
}

.featured-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
}

.featured-card-meta time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-light);
}

.featured-card-title {
  padding-left: 24px;
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 18px;
}

.featured-card-excerpt {
  padding-left: 24px;
  max-width: 760px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.featured-card-tags {
  padding-left: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 10px;
}

.featured-read-more,
.article-row-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.blog-filters {
  padding: 0 48px;
  max-width: 1400px;
  margin: 0 auto 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-tag {
  padding: 9px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  font-size: 14px;
  color: var(--text-secondary);
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.filter-tag:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.filter-tag--active {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.blog-layout {
  padding: 0 48px 80px;
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(280px, 360px);
  gap: 40px;
  align-items: start;
}

.article-list {
  display: grid;
  gap: 0;
}

.article-row {
  padding: 28px 0 30px;
  border-top: 1px solid var(--border);
}

.article-row:first-child {
  border-top: none;
}

.article-row.hidden,
.blog-featured.hidden {
  display: none;
}

.article-row-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 14px;
}

.article-row-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
}

.article-row-excerpt,
.aside-copy {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.aside-stack {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 112px;
}

.aside-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.topic-list {
  display: grid;
  gap: 10px;
}

.topic-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  font-size: 14px;
  color: var(--text-secondary);
  text-align: left;
}

.topic-item:first-child {
  border-top: none;
  padding-top: 0;
}

.topic-item strong {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
}

.subscribe-panel .subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.subscribe-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  font-size: 15px;
  color: var(--text);
}

.subscribe-btn {
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  font-size: 15px;
  font-weight: 600;
}

@media (max-width: 1024px) {
  .blog-hero-grid,
  .blog-layout {
    grid-template-columns: 1fr;
  }

  .aside-stack {
    position: static;
  }
}

@media (max-width: 768px) {
  .page-hero--blog,
  .blog-featured,
  .blog-filters,
  .blog-layout {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-hero--blog {
    padding-top: 124px;
    padding-bottom: 36px;
  }

  .featured-card {
    padding: 32px 24px;
  }

  .featured-card::before {
    left: 18px;
    top: 18px;
    bottom: 18px;
  }

  .featured-card-meta,
  .featured-card-title,
  .featured-card-excerpt,
  .featured-card-tags {
    padding-left: 16px;
  }
}