/* ==========================================================================
   BLOG HUB & ARTICLE STYLES
   ========================================================================== */

.bi-blog-hero, .bi-post-hero {
  background: linear-gradient(135deg, var(--bi-primary-900) 0%, var(--bi-primary-800) 100%);
  color: var(--bi-neutral-0);
  padding: 3.5rem 0 4.5rem;
}

.bi-blog-hero-title, .bi-post-title {
  font-size: 2.25rem;
  color: var(--bi-neutral-0);
  margin: 0.75rem 0;
}

@media (min-width: 768px) {
  .bi-blog-hero-title, .bi-post-title {
    font-size: 2.75rem;
  }
}

.bi-blog-hero-lead {
  font-size: 1.0625rem;
  color: var(--bi-neutral-300);
  max-width: 650px;
  line-height: 1.6;
}

/* Category Filter Bar */
.bi-blog-category-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 2rem;
}

.bi-cat-pill {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--bi-neutral-0);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  transition: var(--bi-transition);
}

.bi-cat-pill:hover, .bi-cat-active {
  background-color: var(--bi-accent-500);
  border-color: var(--bi-accent-500);
  color: var(--bi-neutral-0);
}

/* Feed Section */
.bi-blog-feed-section, .bi-post-body-section {
  padding: 4rem 0;
  background-color: var(--bi-neutral-100);
}

.bi-blog-feed-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bi-blog-card-thumb img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.bi-blog-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.bi-blog-cat-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--bi-primary-600);
  text-transform: uppercase;
}

.bi-blog-date-text {
  font-size: 0.75rem;
  color: var(--bi-neutral-500);
}

.bi-blog-card-title {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.bi-blog-card-title a {
  color: var(--bi-neutral-900);
}

.bi-blog-card-title a:hover {
  color: var(--bi-primary-600);
}

.bi-blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--bi-neutral-600);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.bi-blog-card-footer {
  margin-top: auto;
}

/* Single Post Specifics */
.bi-post-meta-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--bi-neutral-300);
}

.bi-post-author-bar {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--bi-neutral-300);
}

.bi-post-body-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 992px) {
  .bi-post-body-grid {
    grid-template-columns: 1.25fr 0.75fr;
  }
}

.bi-post-article {
  background: var(--bi-neutral-0);
  padding: 2.5rem;
  border-radius: var(--bi-radius-lg);
  border: 1px solid var(--bi-neutral-200);
}

.bi-post-featured-image {
  margin-bottom: 2rem;
  border-radius: var(--bi-radius-md);
  overflow: hidden;
}

.bi-post-featured-image img {
  width: 100%;
  height: auto;
}

.bi-post-content {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--bi-neutral-800);
}

.bi-post-content h2 {
  font-size: 1.75rem;
  margin: 2rem 0 1rem;
}

.bi-post-content h3 {
  font-size: 1.375rem;
  margin: 1.5rem 0 0.875rem;
}

.bi-post-content p {
  margin-bottom: 1.5rem;
}

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

.bi-post-footer-box {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--bi-neutral-200);
}

.bi-author-bio {
  background-color: var(--bi-neutral-100);
  padding: 1.5rem;
  border-radius: var(--bi-radius-md);
}

.bi-author-bio h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.bi-author-bio p {
  font-size: 0.875rem;
  color: var(--bi-neutral-600);
  margin: 0;
  line-height: 1.5;
}

.bi-post-cta-card {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, var(--bi-primary-900) 0%, var(--bi-primary-800) 100%);
  color: var(--bi-neutral-0);
  border-radius: var(--bi-radius-lg);
  text-align: center;
}

.bi-post-cta-card h3 {
  color: var(--bi-neutral-0);
  font-size: 1.375rem;
  margin-bottom: 0.5rem;
}

.bi-post-cta-card p {
  color: var(--bi-neutral-300);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}