/* ── Post page styles ──
   Builds on the design system defined in /styles.css
   (fonts: Outfit + Lora, light theme, CSS variables)
*/

/* ── Post hero / header ── */
.post-hero {
  padding: calc(68px + 3rem) 0 0;
  max-width: 720px;
  margin: 0 auto;
}

.post-cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 2.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.post-date,
.post-read-time {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

.post-meta-sep {
  color: var(--border-hover);
  font-size: 0.7rem;
}

.post-title {
  font-family: var(--display);
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.6rem;
}

.post-subtitle {
  font-family: var(--body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.post-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.post-tag {
  font-size: 0.62rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  letter-spacing: 0.01em;
  background: var(--accent-soft);
  color: var(--accent);
}

/* ── Article body ── */
.post-body {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

.post-body strong {
  font-weight: 600;
  color: var(--text);
}

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

/* Headings */
.post-body h2 {
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: 3rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.post-body h3 {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.post-body h4 {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

/* Paragraphs */
.post-body p {
  margin-bottom: 1.35rem;
}

/* Links */
.post-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.post-body a:hover {
  color: var(--accent-secondary);
}

/* Lists */
.post-body ul,
.post-body ol {
  margin-bottom: 1.35rem;
  padding-left: 1.5rem;
}

.post-body li {
  margin-bottom: 0.4rem;
}

.post-body li > ul,
.post-body li > ol {
  margin-top: 0.4rem;
  margin-bottom: 0;
}

/* Blockquotes */
.post-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.post-body blockquote p {
  margin-bottom: 0;
  color: var(--text);
  font-style: italic;
}

/* Horizontal rules */
.post-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* Images */
.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1.5rem 0;
  display: block;
}

/* Inline code */
.post-body code {
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--accent);
}

/* Code blocks */
.post-body pre {
  background: #1a1a2e;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  line-height: 1.55;
  -webkit-overflow-scrolling: touch;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  color: #e2e8f0;
  font-size: 0.82rem;
}

/* Code block language label */
.post-body pre[data-lang]::before {
  content: attr(data-lang);
  display: block;
  font-family: var(--display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 0.75rem;
}

/* Tables */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post-body th,
.post-body td {
  padding: 0.65rem 1rem;
  border: 1px solid var(--border);
  text-align: left;
}

.post-body th {
  background: var(--bg-subtle);
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text);
}

.post-body td {
  color: var(--text-secondary);
}

/* ── Post footer ── */
.post-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 3rem;
  text-align: center;
}

.post-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  margin-bottom: 1.5rem;
}

.post-back-link:hover {
  color: var(--accent);
}

/* ── Post endmatter (share, related, newsletter) ── */
.post-endmatter {
  max-width: 720px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  padding-top: 2.5rem;
}

/* Share / copy link */
.post-share {
  display: flex;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.copy-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.5rem 1.1rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.copy-link-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.copy-link-btn svg {
  flex-shrink: 0;
}

/* Related posts */
.related-posts {
  margin-bottom: 2.5rem;
}

.related-posts-heading {
  font-family: var(--display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.related-posts-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.related-post-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s;
}

.related-post-item:hover {
  background: var(--bg-subtle);
}

.related-post-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}

.related-post-thumb-empty {
  background: var(--bg-subtle);
}

.related-post-item h3 {
  font-family: var(--display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.related-post-time {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

/* Newsletter CTA */
.post-newsletter {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-subtle);
  border-radius: var(--radius);
  margin-bottom: 2.5rem;
}

.post-newsletter-heading {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.post-newsletter-desc {
  font-family: var(--body);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.5rem 1.25rem;
}

/* ── Responsive ── */
@media (max-width: 860px) {
  .post-hero {
    padding-top: calc(68px + 2rem);
  }

  .post-cover {
    border-radius: 0;
    margin-left: calc(-1 * clamp(1.5rem, 5vw, 4.5rem));
    margin-right: calc(-1 * clamp(1.5rem, 5vw, 4.5rem));
    width: calc(100% + 2 * clamp(1.5rem, 5vw, 4.5rem));
    max-width: none;
    max-height: 280px;
  }

  .post-title {
    font-size: 1.8rem;
  }

  .post-body {
    font-size: 1rem;
  }

  .post-body pre {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
    border-radius: 6px;
    padding: 1rem;
  }
}