/* ============================================
   Five Stacks — Blog
   Extends style.css for article pages
   ============================================ */

/* ── Blog Index ── */

.blog-index-hero {
  padding: 140px 24px 48px;
  text-align: center;
  background: var(--bg);
}

.blog-index-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 12px;
}

.blog-index-subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto;
}

.blog-index {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.blog-card {
  display: block;
  background: var(--surface);
  padding: 28px 32px;
  text-decoration: none;
  transition: background 0.15s;
}

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

.blog-card-date {
  display: block;
  font-size: 0.75rem;
  color: var(--subtle);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.blog-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  line-height: 1.35;
}

.blog-card-excerpt {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ── Blog Article ── */

.blog-article {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

.blog-header {
  padding-top: 120px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.blog-date {
  display: block;
  font-size: 0.75rem;
  color: var(--subtle);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.blog-header h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 16px;
}

.blog-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.55;
  font-style: italic;
}

/* ── Blog Body ── */

.blog-body {
  padding-bottom: 48px;
}

.blog-body p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 1.4em;
}

.blog-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-top: 2.4em;
  margin-bottom: 0.8em;
  text-align: left;
}

.blog-body em {
  font-style: italic;
}

.blog-body strong {
  font-weight: 700;
  color: var(--ink);
}

.blog-body blockquote {
  border-left: 3px solid var(--ink);
  padding: 4px 0 4px 20px;
  margin: 2em 0;
}

.blog-body blockquote p {
  color: var(--ink);
  font-weight: 500;
}

.blog-body ul,
.blog-body ol {
  margin: 1em 0 1.4em 1.5em;
}

.blog-body li {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 0.4em;
}

/* ── Blog Footer CTA ── */

.blog-footer-cta {
  background: var(--ink);
  color: white;
  padding: 40px 32px;
  border-radius: 12px;
  text-align: center;
  margin-bottom: 48px;
}

.blog-footer-cta p {
  font-size: 0.95rem;
  color: var(--subtle);
  margin-bottom: 20px;
}

.blog-footer-cta .cta-button {
  background: white;
  color: var(--ink);
}

.blog-footer-cta .cta-button:hover {
  background: #E5E5E5;
}

/* ── Post Navigation ── */

.blog-post-nav {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.blog-post-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.blog-post-nav-prev,
.blog-post-nav-next {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.blog-post-nav-prev:hover,
.blog-post-nav-next:hover {
  color: var(--ink);
}

.blog-post-nav-next {
  text-align: right;
}

/* ── Subscribe Hero ── */

.blog-subscribe-hero {
  margin-top: 28px;
}

.blog-subscribe-hero .cta-button {
  margin-bottom: 8px;
}

.blog-subscribe-note {
  font-size: 0.75rem;
  color: var(--subtle);
}

/* ── Subscribe Inline (in articles) ── */

.blog-subscribe-inline {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  margin-bottom: 48px;
}

.blog-subscribe-inline-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.blog-subscribe-inline p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.blog-subscribe-inline .cta-button {
  font-size: 0.85rem;
  padding: 10px 28px;
}

/* ── Responsive ── */

@media (max-width: 480px) {
  .blog-header {
    padding-top: 88px;
    padding-bottom: 32px;
    margin-bottom: 32px;
  }

  .blog-body p,
  .blog-body li {
    font-size: 1rem;
  }

  .blog-card {
    padding: 20px 20px;
  }

  .blog-footer-cta {
    padding: 32px 24px;
    border-radius: 8px;
  }
}