/* ============================================================
   MacroEngine — blog.css
   Styles for: Blog index page, Article page, Homepage blog section
============================================================ */

/* ── NAV ACTIVE STATE ─────────────────────────────────────── */
.nav-active {
  color: var(--accent) !important;
}

/* ── BLOG HERO ────────────────────────────────────────────── */
.blog-hero {
  padding: 3rem 0 2rem;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
}

.blog-hero-inner { max-width: 620px; margin: 0 auto; }

/* ── CATEGORY FILTER BAR ──────────────────────────────────── */
.blog-filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-block: 1.5rem 0.5rem;
}

.filter-chip {
  padding: 0.45rem 1rem;
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition, 0.25s ease);
  font-family: var(--font-body);
}

.filter-chip:hover {
  border-color: var(--text-subtle);
  color: var(--text-primary);
}

.filter-chip.active {
  background: var(--accent-glow, rgba(16,185,129,0.15));
  border-color: var(--accent);
  color: var(--accent);
}

/* ── BLOG MAIN / GRID ─────────────────────────────────────── */
.blog-main {
  padding-block: 2rem 4rem;
}

/* SKELETON LOADER */
.blog-skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skeleton-card {
  height: 280px;
  background: linear-gradient(90deg, var(--card-border) 25%, var(--bg-card) 50%, var(--card-border) 75%);
  background-size: 200% 100%;
  border-radius: var(--radius-lg);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* BLOG GRID */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.blog-grid.has-featured {
  grid-template-columns: 1fr 1fr;
}

/* ARTICLE CARD */
.article-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition, 0.25s ease), transform var(--transition, 0.25s ease), box-shadow var(--transition, 0.25s ease);
  cursor: pointer;
  animation: cardIn 0.4s ease both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.article-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.12);
  text-decoration: none;
}

.article-card.featured {
  grid-column: span 2;
  flex-direction: row;
  gap: 2rem;
  align-items: flex-start;
  padding: 2.25rem;
}

/* CARD EMOJI COVER */
.card-cover-emoji {
  width: 52px;
  height: 52px;
  background: var(--accent-glow, rgba(16,185,129,0.12));
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.article-card.featured .card-cover-emoji {
  width: 72px;
  height: 72px;
  font-size: 2.25rem;
  border-radius: var(--radius-lg);
}

.card-body { flex: 1; display: flex; flex-direction: column; gap: 0.625rem; }

/* CARD META */
.card-meta {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.card-category {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow, rgba(16,185,129,0.12));
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.card-date {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.card-readtime {
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.card-meta-dot {
  width: 3px;
  height: 3px;
  background: var(--text-subtle);
  border-radius: 50%;
}

/* CARD TITLE */
.card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--text-primary);
  transition: color var(--transition, 0.25s ease);
}

.article-card.featured .card-title { font-size: 1.35rem; }

.article-card:hover .card-title { color: var(--accent); }

/* CARD EXCERPT */
.card-excerpt {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card.featured .card-excerpt { -webkit-line-clamp: 4; }

/* CARD TAGS */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: auto;
}

.card-tag {
  font-size: 0.7rem;
  color: var(--text-subtle);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
}

/* READ MORE LINK */
.card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 0.25rem;
}

.card-read-more span { transition: transform 0.2s ease; }
.article-card:hover .card-read-more span { transform: translateX(4px); }

/* NO RESULTS */
.blog-no-results {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-subtle);
  font-size: 0.9rem;
}

/* ── INDIVIDUAL ARTICLE PAGE ──────────────────────────────── */
.article-main {
  padding-block: 2.5rem 3rem;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-bottom: 2rem;
}

.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--accent); }
.article-breadcrumb-sep { color: var(--text-subtle); }

/* ARTICLE HEADER */
.article-header { margin-bottom: 2.5rem; max-width: 760px; }

.article-cover-emoji {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 1.25rem;
  display: block;
}

.article-category-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow, rgba(16,185,129,0.12));
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.article-excerpt {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  max-width: 640px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.825rem;
  color: var(--text-subtle);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--card-border);
}

.article-meta-bar strong { color: var(--text-muted); }

/* ARTICLE BODY */
.article-body {
  max-width: 760px;
  margin-top: 2rem;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 2.25rem;
  margin-bottom: 0.875rem;
  color: var(--text-primary);
  scroll-margin-top: 80px;
}

.article-body p {
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.125rem;
}

.article-body strong { color: var(--text-primary); }

.article-disclaimer-box {
  margin-top: 2.5rem;
  padding: 1rem 1.25rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.8rem;
  color: var(--text-subtle);
  line-height: 1.6;
}

.article-disclaimer-box a { color: var(--accent); }

/* ARTICLE TAGS */
.article-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--card-border);
}

.article-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 0.25rem 0.625rem;
}

/* ARTICLE RELATED / CTA */
.article-related {
  padding-block: 2rem 3rem;
}

.article-related h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

/* ARTICLE CTA BOX */
.article-cta-box {
  background: linear-gradient(135deg, rgba(16,185,129,0.1) 0%, rgba(16,185,129,0.04) 100%);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: center;
  margin-top: 2rem;
}

.article-cta-box h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.article-cta-box p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* ARTICLE SKELETON */
.article-skeleton { max-width: 760px; }

.sk-line {
  height: 16px;
  background: linear-gradient(90deg, var(--card-border) 25%, var(--bg-card) 50%, var(--card-border) 75%);
  background-size: 200% 100%;
  border-radius: 4px;
  margin-bottom: 1rem;
  animation: shimmer 1.5s infinite;
}

.sk-title { height: 36px; width: 70%; margin-bottom: 1.5rem; }
.sk-meta  { height: 12px; width: 40%; margin-bottom: 2rem; }
.sk-short { width: 60%; }

/* ── HOMEPAGE BLOG SECTION ────────────────────────────────── */
.home-blog-section {
  padding-block: 3rem;
  border-top: 1px solid var(--card-border);
}

.home-blog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.home-blog-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.home-blog-header .view-all-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.home-blog-header .view-all-link:hover { text-decoration: none; opacity: 0.85; }

.home-blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.home-blog-loading {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .blog-grid.has-featured { grid-template-columns: 1fr; }
  .article-card.featured {
    flex-direction: column;
    grid-column: span 1;
  }
  .article-card.featured .card-cover-emoji {
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }
  .article-card.featured .card-title { font-size: 1.1rem; }
  .blog-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}