/* ─── Blog layout — shared blog variables + nav additions ──────────────────── */

/* Nav: link list for blog + landing header */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--text-primary);
  opacity: 1;
}

.nav-link--active {
  color: var(--text-primary);
  border-color: var(--border);
}

/* ─── Blog main wrapper ──────────────────────────────────────────────────────── */
.blog-main {
  padding-top: 100px;
  min-height: 100vh;
}

/* ─── Blog index ─────────────────────────────────────────────────────────────── */
.blog-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 120px;
}

.blog-header {
  margin-bottom: 72px;
}

.blog-index-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.blog-index-sub {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 520px;
}

/* ─── Post card (index) ──────────────────────────────────────────────────────── */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-card {
  border-top: 1px solid var(--border);
  transition: border-color var(--transition);
}

.post-card:last-child {
  border-bottom: 1px solid var(--border);
}

.post-card:hover {
  border-color: var(--border-hover);
}

.post-card-link {
  display: block;
  padding: 36px 0;
  color: inherit;
  text-decoration: none;
  transition: none;
}

.post-card-link:hover {
  opacity: 1;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.post-date {
  font-family: 'Satoshi', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.post-reading-time {
  font-family: 'Satoshi', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.post-reading-time::before {
  content: '·';
  margin-right: 16px;
  color: var(--text-muted);
}

.post-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.post-card-excerpt {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.post-card-read {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  display: inline-block;
  transition: transform var(--transition);
}

.post-card:hover .post-card-read {
  transform: translateX(4px);
}

.no-posts {
  color: var(--text-muted);
  padding: 40px 0;
}

/* ─── Single post ────────────────────────────────────────────────────────────── */
.post-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 120px;
}

.post-header {
  margin-bottom: 56px;
}

.back-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  display: inline-block;
  margin-bottom: 32px;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--text-secondary);
  opacity: 1;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.post-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.post-excerpt {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ─── Prose (article body) ───────────────────────────────────────────────────── */
.prose {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 65ch;
}

.prose p {
  margin-bottom: 1.5em;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-top: 2.5em;
  margin-bottom: 0.75em;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-top: 2em;
  margin-bottom: 0.6em;
}

.prose h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.prose ul,
.prose ol {
  padding-left: 1.5em;
  margin-bottom: 1.5em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose strong {
  color: var(--text-primary);
  font-weight: 600;
}

.prose em {
  color: var(--accent);
  font-style: italic;
}

.prose a {
  color: var(--accent);
  border-bottom: 1px solid rgba(232, 160, 69, 0.35);
  transition: border-color var(--transition), opacity var(--transition);
}

.prose a:hover {
  border-color: var(--accent);
  opacity: 0.85;
}

.prose blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25em;
  margin: 2em 0;
  color: var(--text-secondary);
  font-style: italic;
}

.prose blockquote p {
  margin-bottom: 0;
}

.prose code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.875em;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.15em 0.45em;
  color: var(--text-primary);
}

.prose pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  overflow-x: auto;
  margin-bottom: 1.5em;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3em 0;
}

/* ─── Post navigation ────────────────────────────────────────────────────────── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.post-nav-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--transition);
}

.post-nav-item:hover {
  border-color: var(--border-hover);
  opacity: 1;
}

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

.post-nav-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.post-nav-title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.3;
}

/* ─── CTA card ───────────────────────────────────────────────────────────────── */
.post-cta-card {
  margin-top: 56px;
  padding: 36px 40px;
  background: linear-gradient(135deg, rgba(232, 160, 69, 0.08) 0%, var(--bg-card) 60%);
  border: 1px solid rgba(232, 160, 69, 0.2);
  border-radius: var(--radius-lg);
}

.post-cta-heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.post-cta-sub {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.post-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #0d0d0d;
  border-radius: var(--radius-sm);
  padding: 12px 22px;
  font-size: 0.9375rem;
  font-weight: 700;
  transition: background var(--transition), transform var(--transition);
}

.post-cta-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  opacity: 1;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .blog-container,
  .post-container {
    padding: 40px 20px 80px;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-item--next {
    text-align: left;
  }

  .post-cta-card {
    padding: 28px 24px;
  }
}