/* ============================================================
   YUMO Blog Styles
   ============================================================ */

/* ---------------------------------------------------------------
   Blog Index — Hero
   --------------------------------------------------------------- */
.blog-hero {
  text-align: center;
  padding: calc(var(--nav-height) + 60px) 24px 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.blog-hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ---------------------------------------------------------------
   Blog Index — Post Grid
   --------------------------------------------------------------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.post-card {
  background: var(--color-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

.post-card a {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card-meta {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 10px;
}

.post-card-excerpt {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}

.post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  text-transform: lowercase;
}

/* ---------------------------------------------------------------
   Blog Post — Layout
   --------------------------------------------------------------- */
.blog-post {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 80px;
}

.post-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------------------------------------------------------
   Blog Post — Header
   --------------------------------------------------------------- */
.post-header {
  margin-bottom: 40px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.meta-separator {
  color: var(--text-tertiary);
}

.post-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.post-excerpt {
  font-size: 1.125rem;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------------------------------------------------------------
   Blog Post — Content (Markdown rendered)
   --------------------------------------------------------------- */
.post-content {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.post-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.post-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.post-content p {
  margin-bottom: 20px;
}

.post-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: rgba(var(--color-primary-rgb), 0.3);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}

.post-content a:hover {
  text-decoration-color: var(--color-primary);
}

.post-content ul,
.post-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.post-content li {
  margin-bottom: 8px;
}

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

.post-content blockquote {
  border-left: 3px solid var(--color-primary);
  margin: 24px 0;
  padding: 16px 20px;
  background: rgba(var(--color-primary-rgb), 0.05);
  border-radius: 0 var(--radius-button) var(--radius-button) 0;
  color: var(--text-tertiary);
  font-style: italic;
}

.post-content blockquote p {
  margin-bottom: 0;
}

.post-content code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.9em;
  background: var(--color-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--color-primary-light);
}

.post-content pre {
  margin: 24px 0;
  padding: 20px;
  background: var(--color-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-button);
  overflow-x: auto;
}

.post-content pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-button);
  margin: 24px 0;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 40px 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9375rem;
}

.post-content th,
.post-content td {
  padding: 10px 14px;
  border: 1px solid var(--border-dark);
  text-align: left;
}

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

.post-content td {
  color: var(--text-tertiary);
}

/* ---------------------------------------------------------------
   Blog Post — Footer
   --------------------------------------------------------------- */
.post-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.post-source a {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-source a:hover {
  color: var(--color-primary);
}

.back-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.back-link:hover {
  opacity: 0.8;
}

/* ---------------------------------------------------------------
   Active nav link
   --------------------------------------------------------------- */
.nav-links a.active {
  color: var(--color-primary);
}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media (max-width: 600px) {
  .blog-grid {
    grid-template-columns: 1fr;
    padding: 0 16px 60px;
  }

  .post-card {
    padding: 20px;
  }

  .blog-hero {
    padding: calc(var(--nav-height) + 40px) 16px 24px;
  }

  .post-container {
    padding: 0 16px;
  }

  .post-footer {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}