/* ============================================================
   OPENCLAWD — BLOG & BLOG POST STYLES
   File: css/blog.css
   ============================================================ */

/* ─── Blog Listing Page ─────────────────────────────────────── */
.blog-hero {
  padding: 140px 8% 80px;
  text-align: center;
}

.blog-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.blog-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}
.blog-hero__title em { font-style: normal; color: var(--cyan); }

.blog-hero__sub {
  color: var(--text-gray);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* Filter tabs */
.blog-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0 8% 50px;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-gray);
  cursor: pointer;
  transition: all var(--ease);
}
.filter-btn:hover,
.filter-btn.is-active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* Blog post grid */
.blog-grid {
  padding: 0 8% 100px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.post-card {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  cursor: pointer;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
  position: relative;
  overflow: hidden;
}
.post-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.post-card__cat {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 14px;
}

.post-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
  color: var(--text-white);
}

.post-card__excerpt {
  color: var(--text-gray);
  font-size: 0.87rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.post-card__avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--bg-base);
  flex-shrink: 0;
}

.post-card__arrow {
  margin-left: auto;
  color: var(--cyan);
  font-size: 0.85rem;
  transition: transform var(--ease);
}
.post-card:hover .post-card__arrow { transform: translateX(4px); }


/* ─── Blog Post / Article Page ──────────────────────────────── */
.post-layout {
  max-width: 760px;
  margin: 0 auto;
  padding: 120px 6% 100px;
}

.post-header { margin-bottom: 2.5rem; }

.post-header__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-gray);
  transition: color var(--ease);
  margin-bottom: 28px;
}
.post-header__back:hover { color: var(--cyan); }

.post-header__cat {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 18px;
}

.post-header__title {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 1.2rem;
}

.post-header__sub {
  color: var(--text-gray);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.post-meta__avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--bg-base);
  flex-shrink: 0;
}

.post-meta__author-name {
  color: var(--text-white);
  font-weight: 600;
  display: block;
}

/* Article body typography */
.post-body {
  margin-top: 2.5rem;
  color: var(--text-gray);
  font-size: 1rem;
  line-height: 1.85;
}

.post-body h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-white);
  margin: 2.5rem 0 1rem;
  letter-spacing: -0.5px;
}

.post-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin: 2rem 0 0.8rem;
}

.post-body p { margin-bottom: 1.3rem; }

.post-body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.post-body ul,
.post-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.3rem;
  list-style: disc;
}
.post-body ol { list-style: decimal; }
.post-body li { margin-bottom: 0.5rem; }

/* Inline code */
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(0, 210, 255, 0.1);
  color: var(--cyan);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Code block */
.post-body pre {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.post-body pre code {
  background: none;
  padding: 0;
  font-size: 0.82rem;
  color: var(--text-gray);
  white-space: pre;
}

/* Blockquote */
.post-body blockquote {
  border-left: 3px solid var(--cyan);
  padding: 4px 0 4px 20px;
  margin: 1.5rem 0;
  color: var(--text-gray);
  font-style: italic;
}

/* Callout / tip box */
.callout {
  background: rgba(0, 210, 255, 0.06);
  border: 1px solid rgba(0, 210, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}
.callout strong { color: var(--cyan); }

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

/* Related posts section */
.related-posts {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.related-posts__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

@media (max-width: 600px) {
  .blog-grid       { grid-template-columns: 1fr; padding: 0 6% 60px; }
  .related-grid    { grid-template-columns: 1fr; }
  .post-layout     { padding: 100px 5% 60px; }
}