/**
 * Blog Styles
 * Styles for blog listing and post pages.
 * Based on design-guidelines.md specification.
 */

/* ============================================
   Blog Listing Page
   ============================================ */

.blog-listing {
  max-width: var(--max-width-container);
  margin: 0 auto;
}

.blog-grid {
  display: grid;
  gap: var(--space-2xl);
}

/* Blog Post Card */
.blog-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform var(--duration-normal) var(--ease-out);
}

.blog-card:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.blog-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background-color: var(--color-skeleton);
  margin-bottom: var(--space-md);
}

.blog-card-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.blog-card-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-h3);
  color: var(--color-text-primary);
  margin: 0;
}

.blog-card-date {
  font-size: var(--font-size-small);
  color: var(--color-text-tertiary);
  margin: 0;
}

.blog-card-excerpt {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  margin: var(--space-sm) 0 0 0;
}

/* Empty State */
.blog-empty {
  text-align: center;
  padding: var(--space-3xl) 0;
  color: var(--color-text-secondary);
}

/* ============================================
   Blog Post Page
   ============================================ */

.blog-post {
  max-width: var(--max-width-text);
  margin: 0 auto;
}

.blog-post-header {
  margin-bottom: var(--space-2xl);
}

.blog-post-title {
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
  font-weight: var(--font-weight-light);
  margin: 0 0 var(--space-md) 0;
}

.blog-post-meta {
  font-size: var(--font-size-small);
  color: var(--color-text-tertiary);
}

/* Cover Image */
.blog-post-cover {
  width: 100%;
  max-width: var(--max-width-gallery);
  margin: 0 auto var(--space-2xl) auto;
  display: block;
}

.blog-post-cover img {
  width: 100%;
  height: auto;
  display: block;
}

/* Blog Post Body - Markdown Content */
.blog-post-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-primary);
}

.blog-post-body h1,
.blog-post-body h2,
.blog-post-body h3,
.blog-post-body h4,
.blog-post-body h5,
.blog-post-body h6 {
  font-weight: var(--font-weight-medium);
  margin: var(--space-2xl) 0 var(--space-md) 0;
}

.blog-post-body h1 {
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
}

.blog-post-body h2 {
  font-size: var(--font-size-h2);
  line-height: var(--line-height-h2);
}

.blog-post-body h3 {
  font-size: var(--font-size-h3);
  line-height: var(--line-height-h3);
}

.blog-post-body p {
  margin: 0 0 var(--space-md) 0;
}

.blog-post-body p:last-child {
  margin-bottom: 0;
}

/* Images in blog posts break out to 1000px max */
.blog-post-body img {
  max-width: var(--max-width-gallery);
  width: 100%;
  height: auto;
  margin: var(--space-xl) 0;
  display: block;
}

/* When image is wider than text container, center it */
@media (min-width: 1000px) {
  .blog-post-body img {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
  }
}

.blog-post-body a {
  color: var(--color-text-primary);
  text-decoration: underline;
  transition: color var(--duration-fast) var(--ease-default);
}

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

.blog-post-body blockquote {
  margin: var(--space-xl) 0;
  padding: 0 0 0 var(--space-lg);
  border-left: 2px solid var(--color-border);
  color: var(--color-text-secondary);
  font-style: italic;
}

.blog-post-body ul,
.blog-post-body ol {
  margin: 0 0 var(--space-md) 0;
  padding-left: var(--space-xl);
}

.blog-post-body li {
  margin-bottom: var(--space-sm);
}

.blog-post-body code {
  font-family: 'SF Mono', Monaco, 'Andale Mono', monospace;
  font-size: 0.9em;
  background-color: var(--color-skeleton);
  padding: 2px 6px;
  border-radius: 3px;
}

.blog-post-body pre {
  margin: var(--space-xl) 0;
  padding: var(--space-md);
  background-color: var(--color-skeleton);
  border-radius: 4px;
  overflow-x: auto;
}

.blog-post-body pre code {
  background: none;
  padding: 0;
}

.blog-post-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2xl) 0;
}

/* Back to Blog Link */
.blog-back-link {
  display: inline-block;
  margin-bottom: var(--space-2xl);
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

.blog-back-link:hover {
  color: var(--color-text-primary);
  text-decoration: underline;
}

/* ============================================
   Related Projects Section
   ============================================ */

.related-projects {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.related-projects-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-light);
  margin: 0 0 var(--space-lg) 0;
  color: var(--color-text-primary);
}

.related-projects-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.related-project-card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.related-project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  text-decoration: none;
}

.related-project-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  background-color: var(--color-skeleton);
}

.related-project-card-title {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  margin-top: var(--space-sm);
  color: var(--color-text-primary);
}

/* ============================================
   Responsive Styles
   ============================================ */

@media (max-width: 1024px) {
  .blog-post-body img {
    max-width: 100%;
    position: static;
    left: auto;
    transform: none;
  }
}

@media (max-width: 640px) {
  .blog-card-title {
    font-size: var(--font-size-body);
  }

  .blog-post-title {
    font-size: var(--font-size-h2);
  }

  .blog-post-body h1 {
    font-size: var(--font-size-h2);
  }

  .blog-post-body h2 {
    font-size: var(--font-size-h3);
  }

  .related-projects-grid {
    grid-template-columns: 1fr;
  }
}