/* ===========================
   BLOG PAGE STYLES
   Extends style.css — always load style.css first
=========================== */

/* Active nav link */
.nav-active {
  color: var(--accent) !important;
}

/* ── BLOG HEADER ── */
.blog-header {
  padding: 140px 0 60px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.blog-header-inner {
  max-width: 640px;
}

.blog-page-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.blog-page-sub {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 520px;
}

/* ── FILTER BAR ── */
.blog-filter-bar {
  position: sticky;
  top: 60px;
  z-index: 50;
  background: rgba(28, 26, 46, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
}

.filter-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  flex-shrink: 0;
}

.filter-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-tag:hover {
  border-color: var(--border-accent);
  color: var(--text);
}

.filter-tag.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
  font-weight: 500;
}

/* ── BLOG MAIN ── */
.blog-main {
  padding: 64px 0 120px;
}

/* ── POSTS GRID ── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── POST CARD ── */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.post-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.post-card.hidden {
  display: none;
}

.post-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.post-card-inner {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  height: 100%;
}

.post-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.post-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(196, 154, 108, 0.25);
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  background: rgba(196, 154, 108, 0.06);
}

.post-read-time {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}

.post-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  transition: color 0.2s;
}

.post-card:hover .post-title {
  color: var(--accent-2);
}

.post-excerpt {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
}

.post-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.post-meta-date {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

.post-arrow {
  font-size: 1rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.2s;
}

.post-card:hover .post-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ── EMPTY STATE ── */
.posts-empty {
  text-align: center;
  padding: 80px 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}

/* ── RESPONSIVE ── */
@media (max-width: 1000px) {
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .posts-grid {
    grid-template-columns: 1fr;
  }

  .blog-filter-bar {
    top: 0;
  }
}