/* ==========================================================================
   FIT.FINE Blog & Column Styling
   ========================================================================== */

/* Breadcrumbs */
.breadcrumb-nav {
  background-color: var(--color-bg-warm);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: 0.75rem 0;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.breadcrumb-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
}

.breadcrumb-list li:not(:last-child)::after {
  content: "/";
  color: var(--color-text-light);
}

.breadcrumb-list a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-list a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Blog Hero Header */
.blog-hero {
  background: linear-gradient(180deg, var(--color-bg-warm) 0%, var(--color-bg-main) 100%);
  padding: 3.5rem 0 2.5rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border-subtle);
}

.blog-page-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-top: 0.5rem;
  letter-spacing: -0.01em;
}

.blog-page-desc {
  max-width: 640px;
  margin: 1rem auto 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* Category Filter Tabs */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin: 2.5rem 0 2rem;
}

.cat-btn {
  background: #ffffff;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cat-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cat-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.blog-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(27, 91, 74, 0.2);
}

.blog-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.blog-card-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-bg-warm);
}

.blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-thumb img {
  transform: scale(1.06);
}

.blog-cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(27, 91, 74, 0.9);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

.blog-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: 0.5rem;
}

.blog-read-time {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.blog-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text-main);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.blog-card-footer {
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 0.75rem;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.875rem;
}

/* Blog CTA Banner */
.blog-cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #123e32 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.blog-cta-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 800;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.blog-cta-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.blog-cta-desc {
  max-width: 600px;
  margin: 0 auto;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
}

/* ==========================================================================
   Article Detail Page Layout
   ========================================================================== */
.article-container {
  max-width: 820px;
  margin: 2.5rem auto 4rem;
  padding: 0 1.25rem;
}

.article-header {
  margin-bottom: 2rem;
}

.article-cat-badge {
  display: inline-block;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.35rem 0.875rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.article-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.article-author-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-main-thumb {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
}

.article-main-thumb img {
  width: 100%;
  height: auto;
  display: block;
}

/* Table of Contents */
.toc-box {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 2rem 0;
}

.toc-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-list li {
  font-size: 0.9375rem;
}

.toc-list li.toc-h3 {
  padding-left: 1.5rem;
  font-size: 0.875rem;
}

.toc-list a {
  color: var(--color-text-main);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.toc-list a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Article Body Typography */
.article-body {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--color-text-main);
}

.article-body p {
  margin-bottom: 1.75rem;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 3rem 0 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--color-primary-soft);
  border-left: 6px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin: 2.25rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-border);
}

.article-body ul, .article-body ol {
  margin: 1.5rem 0;
  padding-left: 1.75rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.article-body strong {
  color: var(--color-primary);
  font-weight: 700;
}

/* Callout Box */
.article-callout {
  background: #ffffff;
  border: 2px solid var(--color-border);
  border-left: 5px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
}

.article-callout-title {
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Author Profile Box */
.author-profile-box {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 3.5rem 0 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.author-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid #ffffff;
  box-shadow: var(--shadow-sm);
}

.author-info-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
}

.author-name {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0.2rem 0 0.5rem;
}

.author-bio {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Bottom CTA in Article */
.article-line-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, #154538 100%);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.75rem;
  color: #ffffff;
  text-align: center;
  margin: 3rem 0;
  box-shadow: var(--shadow-md);
}

/* Navigation prev / next */
.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 3rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.post-nav-btn {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.875rem;
  max-width: 45%;
  transition: color var(--transition-fast);
}

.post-nav-btn:hover {
  color: var(--color-accent);
}

.post-nav-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-light);
}

@media (max-width: 768px) {
  .blog-page-title {
    font-size: 1.75rem;
  }
  .article-title {
    font-size: 1.5rem;
  }
  .author-profile-box {
    flex-direction: column;
    text-align: center;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
}