/* =========================================================================
   Blog Listing Page — Extension Styles for Null Bugs
   Built on top of style.css design tokens
   ========================================================================= */

/* -------- Search & Category Filter Section -------- */
.blog-filter-section {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 1.5rem 2rem;
  background: var(--surface-color);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.blog-filter-section:hover {
  border-color: rgba(0, 211, 148, 0.3);
  box-shadow: 0 8px 30px rgba(0, 211, 148, 0.08);
}

.filter-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 280px;
}

.search-box i {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.25rem;
  pointer-events: none;
  transition: var(--transition-fast);
}

.search-box input {
  width: 100%;
  padding: 0.8rem 1.2rem 0.8rem 3rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  outline: none;
  transition: var(--transition-normal);
}

.search-box input:focus {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.search-box input:focus + i {
  color: var(--accent);
}

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

.filter-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-main);
}

.filter-label i {
  color: var(--accent);
  font-size: 1.2rem;
}

.post-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.7);
  padding: 0.35rem 1rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  white-space: nowrap;
}

.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.filter-chip {
  padding: 0.55rem 1.3rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-normal);
  outline: none;
  white-space: nowrap;
}

.filter-chip:hover {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text-main);
  transform: translateY(-2px);
  border-color: rgba(0, 211, 148, 0.4);
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 8px 20px var(--accent-glow);
  transform: translateY(-2px);
}

.filter-chip.active:hover {
  box-shadow: 0 12px 25px var(--accent-glow);
  transform: translateY(-3px);
}

/* -------- Spotlight Featured Post Hero -------- */
.featured-blog-card {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
  margin-bottom: 2rem;
  transition: var(--transition-normal);
}

.featured-blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0, 211, 148, 0.12);
  border-color: rgba(0, 211, 148, 0.3);
}

.featured-thumb {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  color: #fff;
  font-size: 5rem;
  overflow: hidden;
  text-decoration: none;
}

.featured-thumb-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 0;
}

.featured-thumb i {
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.featured-badge {
  position: absolute;
  top: 1.2rem;
  left: 1.2rem;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.featured-badge i {
  color: #fbbf24;
  font-size: 1rem;
}

.featured-content {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
}

.featured-tags {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: nowrap;
}

.featured-tags .read-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
}

.featured-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  margin: 0;
  line-height: 1.25;
}

.featured-content h2 a {
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition-fast);
}

.featured-content h2 a:hover {
  color: var(--accent);
}

.featured-content p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

.featured-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.8rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  flex-wrap: wrap;
  gap: 1rem;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-name {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
}

.post-date {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* -------- Blog Cards Grid -------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  width: 100%;
}

.blog-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-normal);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0, 211, 148, 0.12);
  border-color: rgba(0, 211, 148, 0.3);
  background: rgba(255, 255, 255, 0.85);
}

.blog-card .blog-thumb {
  height: 190px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  width: 100%;
  background-size: cover !important;
  background-position: center !important;
  transition: background-size 0.5s ease;
}

.blog-card:hover .blog-thumb {
  background-size: 110% !important;
}

.blog-thumb-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}


.blog-card .blog-card-body {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
  width: 100%;
}

.blog-card-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  flex-wrap: nowrap;
}

.blog-card .blog-tag,
.blog-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  padding: 0 0.85rem;
  border-radius: 50px;
  background: rgba(0, 211, 148, 0.1);
  border: 1px solid rgba(0, 211, 148, 0.25);
  color: var(--accent-secondary);
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
  box-sizing: border-box;
}

.blog-read-time,
.read-time {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
}

.blog-read-time i,
.read-time i {
  font-size: 0.9rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.blog-card h2 {
  font-size: 1.15rem;
  margin: 0;
  line-height: 1.35;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition-fast);
}

.blog-card:hover h3 {
  color: var(--accent);
}

.blog-card p {
  font-size: 0.9rem;
  margin: 0;
  flex: 1;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 0.6rem;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  flex-wrap: wrap;
}

.blog-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.5;
}

.blog-read-more {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--accent);
  margin-top: 0.3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: var(--transition-normal);
}

.blog-card:hover .blog-read-more {
  gap: 0.8rem;
  color: var(--accent-secondary);
}

/* -------- Empty State -------- */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  background: var(--surface-color);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  grid-column: 1 / -1;
  width: 100%;
}

.empty-state i {
  font-size: 3.5rem;
  color: var(--text-muted);
  opacity: 0.35;
  margin-bottom: 1rem;
  display: block;
}

.empty-state h2 {
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.empty-state p {
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* -------- Blog Newsletter Subscription Card -------- */
.blog-newsletter-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.4));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-xl);
  padding: 3.5rem 3rem;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.5rem;
  align-items: center;
  box-shadow: 0 15px 40px rgba(0, 211, 148, 0.08);
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

/* Content column: badge, heading, description — centered as a block */
.newsletter-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  margin: 0 auto;
}

.newsletter-content .badge {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0.5rem 1.4rem;
  gap: 0;
  margin: 0 auto;
}

.newsletter-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-top: 0.5rem;
  margin-bottom: 0.8rem;
}

.newsletter-content p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 auto;
  max-width: 420px;
}

/* Form column: centered and constrained so it doesn't stretch edge-to-edge */
.newsletter-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  box-sizing: border-box;
}

.newsletter-form .input-wrap {
  position: relative;
  width: 100%;
  box-sizing: border-box;
}

.newsletter-form .input-wrap i {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.2rem;
}

.newsletter-form input {
  width: 100%;
  padding: 0.95rem 1.2rem 0.95rem 3rem;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.8);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-main);
  outline: none;
  transition: var(--transition-normal);
}

.newsletter-form input:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.newsletter-form .btn {
  width: 100%;
  justify-content: center;
}

/* ============================================================
   RESPONSIVE DESIGN & MOBILE FIXES
   ============================================================ */
@media (max-width: 992px) {
  .featured-blog-card {
    grid-template-columns: 1fr;
  }

  .featured-thumb {
    min-height: 220px;
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-newsletter-card {
    grid-template-columns: 1fr;
    padding: 2.5rem 2rem;
  }
}

@media (max-width: 768px) {
  /* Ensure no horizontal overflow anywhere on the listing page */
  .page-header,
  .featured-blog-card,
  .blog-grid,
  .blog-newsletter-card,
  .blog-filter-section {
    box-sizing: border-box;
    max-width: 100%;
    overflow-x: hidden;
  }

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

  .featured-content {
    padding: 1.8rem !important;
  }

  .featured-content h2 {
    font-size: 1.5rem;
  }

  .featured-footer {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .blog-filter-section {
    padding: 1.2rem 1.2rem !important;
    gap: 1rem !important;
    width: 100% !important;
  }

  .filter-top-bar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0.8rem !important;
    width: 100% !important;
  }

  .search-box {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .search-box input {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    font-size: 0.9rem !important;
    padding: 0.75rem 1rem 0.75rem 2.8rem !important;
  }

  .search-box i {
    left: 1rem !important;
    font-size: 1.15rem !important;
  }

  .filter-title-wrap {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    margin: 0 !important;
  }

  .category-filter {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 0.5rem !important;
    align-items: center !important;
    justify-content: flex-start !important;
    width: 100% !important;
  }

  .filter-chip {
    padding: 0.45rem 1rem !important;
    font-size: 0.82rem !important;
    white-space: nowrap !important;
  }

  .blog-grid {
    grid-template-columns: 1fr !important;
  }

  .blog-newsletter-card {
    padding: 2rem 1.5rem;
  }

  .newsletter-form {
    flex-direction: column;
    gap: 0.8rem;
  }

  .newsletter-form .input-wrap {
    width: 100%;
  }

  .newsletter-form .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .blog-filter-section {
    padding: 1rem 0.9rem !important;
    border-radius: var(--radius-md) !important;
  }

  .filter-chip {
    padding: 0.38rem 0.85rem !important;
    font-size: 0.78rem !important;
  }

  .search-box input {
    font-size: 0.84rem !important;
    padding: 0.65rem 0.8rem 0.65rem 2.5rem !important;
  }

  .blog-card .blog-thumb {
    height: 160px !important;
  }

  .featured-content {
    padding: 1.4rem !important;
  }

  .featured-content h2 {
    font-size: 1.25rem;
  }

  .featured-footer {
    flex-direction: column;
    gap: 0.8rem;
  }

  .featured-footer .btn {
    width: 100%;
    justify-content: center;
  }

  /* Small screens: ensure card body padding fits tag + readtime side-by-side */
  .blog-card .blog-card-body {
    padding: 1.2rem !important;
    gap: 0.6rem !important;
  }

  .blog-card-top-meta {
    gap: 0.4rem !important;
  }

  .blog-card .blog-tag,
  .blog-tag {
    font-size: 0.68rem !important;
    padding: 0 0.7rem !important;
    height: 26px !important;
    letter-spacing: 0.04em !important;
  }

  .blog-read-time,
  .read-time {
    font-size: 0.7rem !important;
  }
}

/* ---- 360px and smaller ---- */
@media (max-width: 360px) {
  .blog-card .blog-card-body {
    padding: 1rem !important;
    gap: 0.5rem !important;
  }

  .blog-card .blog-tag,
  .blog-tag {
    font-size: 0.64rem !important;
    padding: 0 0.6rem !important;
    height: 24px !important;
    letter-spacing: 0.03em !important;
  }

  .blog-read-time,
  .read-time {
    font-size: 0.65rem !important;
    gap: 0.2rem !important;
  }

  .featured-content {
    padding: 1.1rem !important;
  }

  .featured-content h2 {
    font-size: 1.15rem !important;
  }
}

/* ---- 320px (smallest supported) ---- */
@media (max-width: 320px) {
  .blog-card .blog-tag,
  .blog-tag {
    font-size: 0.6rem !important;
    padding: 0 0.5rem !important;
  }

  .blog-read-time,
  .read-time {
    font-size: 0.6rem !important;
  }
}