/* =========================================================
   post.css — Styles for individual blog post pages
   ========================================================= */

/* ── Reading Progress Bar ── */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ── Post Layout ── */
.post-main {
  padding: 120px 0 80px;
}

.post-article {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ── Post Header ── */
.post-header {
  margin-bottom: var(--space-8);
  text-align: center;
}

.post-tags {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.post-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--accent-purple);
  color: var(--accent-purple);
}

.post-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.post-excerpt {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── Hero Image ── */
.post-hero-img {
  width: 100%;
  border-radius: 16px;
  margin-bottom: var(--space-8);
  border: 1px solid var(--glass-border);
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* ── YouTube Embed ── */
.post-yt-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: var(--space-8);
  border: 1px solid var(--glass-border);
}

.post-yt-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── Post Content Typography ── */
.post-content {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.post-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.post-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}

.post-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin: 1.5rem 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.post-content p {
  margin-bottom: 1.4rem;
}

.post-content a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.post-content a:hover {
  color: var(--accent-purple);
}

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

.post-content em {
  color: var(--text-secondary);
  font-style: italic;
}

.post-content ul,
.post-content ol {
  margin: 0 0 1.4rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

.post-content blockquote {
  border-left: 3px solid var(--accent-purple);
  padding: 0.75rem 0 0.75rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-style: italic;
}

/* Code inline */
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.25);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Code blocks */
.post-content pre {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: var(--space-4) var(--space-5);
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Images inside content */
.post-content img {
  width: 100%;
  border-radius: 12px;
  margin: 1.5rem 0;
  border: 1px solid var(--glass-border);
}

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

/* ── Post CTA Box ── */
.post-cta-box {
  margin-top: 4rem;
  padding: var(--space-8);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  text-align: center;
  backdrop-filter: blur(12px);
}

.post-cta-box h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.post-cta-box p {
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

/* ── Blog Index Overrides ── */
.blog-grid-index {
  grid-template-columns: 1fr;
  max-width: 860px;
  margin: 0 auto;
}

.blog-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0;
}

.blog-card-link .blog-thumb {
  width: 280px;
  min-width: 280px;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 16px 0 0 16px;
}

.blog-card-link .blog-thumb-placeholder {
  width: 280px;
  min-width: 280px;
  background: var(--glass-bg);
  border-radius: 16px 0 0 16px;
}

.blog-card-link .blog-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.blog-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}

.blog-excerpt {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: var(--space-3) 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.blog-readmore {
  font-size: 0.875rem;
  color: var(--accent-cyan);
  font-weight: 500;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .post-article {
    padding: 0 var(--space-4);
  }

  .blog-card-link {
    flex-direction: column;
  }

  .blog-card-link .blog-thumb,
  .blog-card-link .blog-thumb-placeholder {
    width: 100%;
    min-width: unset;
    border-radius: 16px 16px 0 0;
  }
}