/* === SHARE BUTTONS === */

.post-share {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(17, 24, 39, 0.08);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.post-share__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.65rem 1.3rem;
  border: 2px solid transparent;
  border-radius: 999px;
  background: #dc2626;
  color: #ffffff;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.25);
  letter-spacing: 0.02em;
}

.share-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(220, 38, 38, 0.4);
  background: #b91c1c;
}

.share-btn:active {
  transform: translateY(0) scale(1);
}

.share-btn svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.share-btn:focus-visible {
  outline: 3px solid rgba(220, 38, 38, 0.5);
  outline-offset: 3px;
}

.share-btn--native {
  background: #dc2626;
  border-color: #dc2626;
}

.share-btn--native:hover {
  background: #b91c1c;
  border-color: #b91c1c;
}

.share-btn--twitter {
  background: #ffffff;
  color: #1da1f2;
  border-color: #1da1f2;
}

.share-btn--twitter:hover {
  background: #1da1f2;
  color: #ffffff;
  border-color: #1da1f2;
}

.share-btn--facebook {
  background: #ffffff;
  color: #1877f2;
  border-color: #1877f2;
}

.share-btn--facebook:hover {
  background: #1877f2;
  color: #ffffff;
  border-color: #1877f2;
}

.share-btn--linkedin {
  background: #ffffff;
  color: #0a66c2;
  border-color: #0a66c2;
}

.share-btn--linkedin:hover {
  background: #0a66c2;
  color: #ffffff;
  border-color: #0a66c2;
}

/* Hide native share button if not supported */
.share-btn--native.hidden {
  display: none;
}

@media (min-width: 768px) {
  .post-share {
    justify-content: space-between;
  }

  .share-buttons {
    gap: 0.8rem;
  }
}

/* === RELATED ARTICLES === */
.more-articles {
  margin: var(--spacing-3xl) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(17, 24, 39, 0.08);
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  padding: var(--spacing-2xl) 0;
}

.more-articles .section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.more-articles .section-header p {
  color: var(--color-text-muted);
}

.related-posts-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.related-posts-grid__item {
  list-style: none;
  height: 100%;
}

.related-posts-grid__item > .related-post-card {
  height: 100%;
}

.related-posts-grid__item--empty {
  grid-column: 1 / -1;
  text-align: center;
}

.related-posts-grid__item--empty .empty {
  margin: 0;
  color: var(--color-text-muted);
}

/* === RELATED POST CARDS - MODERN ROUNDED DESIGN === */
.related-post-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.04),
    0 1px 3px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.related-post-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.02), rgba(0, 102, 204, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.related-post-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 102, 204, 0.15);
  box-shadow:
    0 16px 36px rgba(0, 102, 204, 0.1),
    0 6px 14px rgba(0, 0, 0, 0.05);
}

.related-post-card:hover::before {
  opacity: 1;
}

.related-post-card:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

.related-post-card__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  overflow: hidden;
}

.related-post-card:hover .related-post-card__media img {
  transform: scale(1.08);
}

.card-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
  border-radius: inherit;
}

.related-post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.related-post-card__body {
  padding: clamp(1rem, 2.5vw, 1.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  height: 100%;
  background: #ffffff;
  position: relative;
  z-index: 1;
}

.related-post-card__body h3 {
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  font-family: var(--font-serif);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 0;
  transition: color 0.2s ease;
}

.related-post-card:hover .related-post-card__body h3 {
  color: var(--color-accent);
}

.related-post-card__body p {
  color: #64748b;
  font-size: 0.875rem;
  line-height: 1.6;
  flex-grow: 1;
  margin: 0;
}

.related-post-card__date {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  padding-top: 0.625rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.related-posts-grid .empty {
  color: var(--color-text-muted);
}

@media (max-width: 639px) {
  .more-articles {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) 0;
  }

  .related-post-card__body {
    padding: var(--spacing-md);
  }
}

/* === FEATURED STORIES === */
.featured-stories {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-alt);
}

.featured-post {
  display: block;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
  text-decoration: none;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.featured-post:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.featured-post:active {
  transform: translateY(0);
}

.featured-post:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.featured-post__media {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--color-bg-alt);
}

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

.featured-post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-post-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border) 100%);
}

.featured-post__body {
  padding: var(--spacing-md);
}

.featured-badge {
  color: var(--color-accent);
  font-size: 0.6875rem;
  margin-bottom: 0.5rem;
}

.featured-post h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.featured-post p {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.featured-post__meta {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.featured-post__link {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
}

.section-header--split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--spacing-lg);
}

.section-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.section-link:hover {
  text-decoration: underline;
}

/* === POST GRID === */
.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.post-grid--home {
  margin-bottom: var(--spacing-xl);
}

/* === POST CARDS - MODERN ROUNDED DESIGN === */
.post-card {
  display: block;
  background: linear-gradient(145deg, #fafbfc 0%, #ffffff 100%);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-tap-highlight-color: transparent;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.04),
    0 1px 2px rgba(0, 0, 0, 0.02);
  position: relative;
}

/* Add subtle color variations to post cards */
.post-card:nth-child(4n + 1) {
  background: linear-gradient(145deg, #fff5f5 0%, #ffffff 100%);
  border-color: rgba(220, 38, 38, 0.08);
}

.post-card:nth-child(4n + 2) {
  background: linear-gradient(145deg, #f0f9ff 0%, #ffffff 100%);
  border-color: rgba(0, 102, 204, 0.08);
}

.post-card:nth-child(4n + 3) {
  background: linear-gradient(145deg, #f0fdf4 0%, #ffffff 100%);
  border-color: rgba(34, 197, 94, 0.08);
}

.post-card:nth-child(4n + 4) {
  background: linear-gradient(145deg, #fef3ff 0%, #ffffff 100%);
  border-color: rgba(168, 85, 247, 0.08);
}

.post-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.02), rgba(0, 102, 204, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.post-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 20px 40px rgba(0, 102, 204, 0.12),
    0 8px 16px rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 102, 204, 0.15);
}

.post-card:hover::before {
  opacity: 1;
}

.post-card:active {
  transform: translateY(-3px);
  box-shadow:
    0 8px 20px rgba(0, 102, 204, 0.08),
    0 2px 6px rgba(0, 0, 0, 0.04);
}

.post-card:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
  transform: translateY(-6px);
}

.post-card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  display: block;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.post-card:hover .post-card-image {
  transform: scale(1.05);
}

/* Optimize image rendering */
img {
  image-rendering: -webkit-optimize-contrast; /* Webkit, Safari, Edge 79+ */
}

img[loading="lazy"] {
  content-visibility: auto;
}

/* Skeleton loading animation - optimized */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-alt) 0%, #e0e0e0 50%, var(--color-bg-alt) 100%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: 4px;
  will-change: background-position;
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-title {
  height: 1.5em;
  width: 80%;
  margin-bottom: 0.75em;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-image {
  width: 100%;
  height: 200px;
}

/* Image fade-in effect when loaded */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s ease-in;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* Performance optimization: content-visibility for off-screen content */
.post-card,
.post-grid > *,
.category-card {
  content-visibility: auto;
  contain-intrinsic-size: 0 400px;
}

@media (min-width: 640px) {
  .post-card-image {
    height: 240px;
  }

  .skeleton-image {
    height: 240px;
  }
}

@media (min-width: 1024px) {
  .post-card-image {
    height: 260px;
  }
}

.post-card-content {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: #ffffff;
  position: relative;
  z-index: 1;
}

@media (max-width: 639px) {
  .post-card-content {
    padding: var(--spacing-md);
  }
}

.post-card-title {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-family: var(--font-serif);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  transition: color 0.2s ease;
}

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

@media (max-width: 639px) {
  .post-card-title {
    margin-bottom: 0.625rem;
  }
}

.post-card-excerpt {
  font-size: clamp(0.875rem, 2vw, 0.9375rem);
  color: #64748b;
  line-height: 1.65;
  margin-bottom: 1rem;
}

@media (max-width: 639px) {
  .post-card-excerpt {
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
    /* Limit to 2-3 lines on mobile */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

.post-card-meta {
  font-size: 0.8125rem;
  color: #64748b;
  margin-bottom: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-wrap: wrap;
  padding-top: 0.875rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.post-card-divider {
  color: #cbd5e1;
  font-weight: 400;
  user-select: none;
}

.post-card-category {
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.025em;
  text-transform: uppercase;
  font-size: 0.75rem;
  background: linear-gradient(135deg, rgba(0, 102, 204, 0.08), rgba(0, 102, 204, 0.12));
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 102, 204, 0.15);
}

.read-time {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.read-time__icon {
  width: 1em;
  height: 1em;
  display: block;
  flex-shrink: 0;
}

@media (max-width: 639px) {
  .post-card-meta {
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
  }
}

.post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.tag-badge {
  padding: 0.3rem 0.65rem;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #475569;
  transition: all 0.2s ease;
}

.tag-badge:hover {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-color: rgba(0, 102, 204, 0.2);
  color: var(--color-accent);
}

@media (max-width: 639px) {
  .tag-badge {
    font-size: 0.6875rem;
    padding: 0.25rem 0.5rem;
  }
}

/* === POSTS INDEX === */
/* === POSTS HERO === */
.posts-hero {
  padding: clamp(3rem, 8vw, 5rem) 0 clamp(2.5rem, 6vw, 4rem);
  background: linear-gradient(135deg, #f8fafc 0%, #e8f1fa 100%);
  border-bottom: 1px solid rgba(0, 102, 204, 0.1);
  position: relative;
  overflow: hidden;
}

.posts-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 102, 204, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.posts-hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 102, 204, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.posts-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.posts-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 1rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.posts-hero__description {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto;
}

.posts-index {
  padding: var(--spacing-2xl) 0;
}

/* === CATEGORY PAGES === */
.category-hero {
  padding: clamp(2.5rem, 8vw, var(--spacing-3xl)) 0 var(--spacing-2xl);
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.category-hero h1 {
  margin-bottom: var(--spacing-md);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 800;
}

.category-hero__subtitle {
  font-size: clamp(1rem, 4vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 42ch;
  margin: 0 auto clamp(var(--spacing-lg), 5vw, var(--spacing-xl));
}

.category-stats {
  display: flex;
  justify-content: center;
  gap: clamp(var(--spacing-lg), 6vw, var(--spacing-2xl));
  margin-top: clamp(var(--spacing-lg), 6vw, var(--spacing-xl));
  flex-wrap: wrap;
}

.category-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  min-width: 110px;
}

.category-stat strong {
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
}

.category-stat span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.category-showcase {
  padding: clamp(2.5rem, 7vw, var(--spacing-3xl)) 0;
}

.category-showcase .section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.category-showcase .section-header h2 {
  font-size: clamp(1.75rem, 5vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.category-showcase .section-header p {
  font-size: clamp(1rem, 4vw, 1.125rem);
  color: var(--color-text-muted);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: clamp(0.85rem, 2.8vw, 1.5rem);
  margin-top: clamp(var(--spacing-lg), 6vw, var(--spacing-2xl));
}

.category-card-new {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  padding: 2.5rem 1.5rem 2rem;
  min-height: 280px;
  background: linear-gradient(145deg, #fff 0%, #f8fafc 100%);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  text-decoration: none;
  transition: all var(--transition-base) var(--ease-smooth);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.category-card-new:nth-child(1) {
  background: linear-gradient(145deg, #fff5f5 0%, #fff 100%);
  border-color: #ffe5e5;
}
.category-card-new:nth-child(2) {
  background: linear-gradient(145deg, #fff8f0 0%, #fff 100%);
  border-color: #ffe8d5;
}
.category-card-new:nth-child(3) {
  background: linear-gradient(145deg, #fffbf0 0%, #fff 100%);
  border-color: #fff0d5;
}
.category-card-new:nth-child(4) {
  background: linear-gradient(145deg, #f0fff4 0%, #fff 100%);
  border-color: #d5ffe5;
}
.category-card-new:nth-child(5) {
  background: linear-gradient(145deg, #f0f9ff 0%, #fff 100%);
  border-color: #d5ecff;
}
.category-card-new:nth-child(6) {
  background: linear-gradient(145deg, #f5f3ff 0%, #fff 100%);
  border-color: #e5e0ff;
}
.category-card-new:nth-child(7) {
  background: linear-gradient(145deg, #fef3ff 0%, #fff 100%);
  border-color: #fae0ff;
}
.category-card-new:nth-child(8) {
  background: linear-gradient(145deg, #fff0f6 0%, #fff 100%);
  border-color: #ffd5e8;
}
.category-card-new:nth-child(9) {
  background: linear-gradient(145deg, #f0fdfa 0%, #fff 100%);
  border-color: #d5f5f0;
}
.category-card-new:nth-child(10) {
  background: linear-gradient(145deg, #fffaf0 0%, #fff 100%);
  border-color: #ffe5d5;
}
.category-card-new:nth-child(11) {
  background: linear-gradient(145deg, #fff5fb 0%, #fff 100%);
  border-color: #ffe0f0;
}
.category-card-new:nth-child(12) {
  background: linear-gradient(145deg, #f8f9fa 0%, #fff 100%);
  border-color: #e5e7eb;
}

.category-card-new:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.category-card-new__circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition-base) var(--ease-smooth);
}

.category-card-new:hover .category-card-new__circle {
  transform: scale(1.1) rotate(5deg);
}

.category-card-new__circle img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.category-card-new__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: #1e293b;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0.25rem;
}

.category-card-new__desc {
  color: #64748b;
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 26ch;
  margin: 0;
}

.category-card-new__footer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.category-card-new__count {
  font-size: 0.85rem;
  color: #475569;
  font-weight: 600;
}

.category-card-new__arrow {
  font-size: 1.25rem;
  color: #0066cc;
  font-weight: 600;
  transition: transform var(--transition-fast) var(--ease-smooth);
}

.category-card-new:hover .category-card-new__arrow {
  transform: translateX(4px);
}

/* === ACCESSIBILITY - REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  /* Disable transforms for reduced motion */
  .post-card:hover,
  .related-post-card:hover,
  .nav-link:hover,
  .site-brand:hover,
  .search-toggle:hover,
  .nav-toggle:hover {
    transform: none !important;
  }
}

/* === READING PROGRESS BAR === */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1100;
  pointer-events: none;
  display: none;
}

.reading-progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), #0052a3);
  width: 0%;
  transition: width 0.1s ease-out;
}

/* === BACK TO TOP BUTTON === */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: #0052a3;
  box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
  transform: translateY(-2px);
}

.back-to-top:active {
  transform: translateY(0);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 639px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
  }

  .back-to-top svg {
    width: 20px;
    height: 20px;
  }
}

/* === PROFESSIONAL UTILITY CLASSES === */

/* Modern focus ring variants */
.focus-ring:focus-visible {
  outline: 3px solid rgba(0, 102, 204, 0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

.focus-ring-primary:focus-visible {
  outline-color: rgba(0, 102, 204, 0.5);
  outline-width: var(--focus-ring-width);
  outline-offset: var(--focus-ring-offset);
}

.focus-ring-accent:focus-visible {
  outline-color: rgba(220, 38, 38, 0.5);
  outline-width: var(--focus-ring-width);
  outline-offset: var(--focus-ring-offset);
}

.focus-ring-success:focus-visible {
  outline-color: rgba(34, 197, 94, 0.5);
  outline-width: var(--focus-ring-width);
  outline-offset: var(--focus-ring-offset);
}

/* Smooth transitions */
.transition-smooth {
  transition: all var(--transition-base) var(--ease-smooth);
}

.transition-fast {
  transition: all var(--transition-fast) var(--ease-smooth);
}

.transition-slow {
  transition: all var(--transition-slow) var(--ease-smooth);
}

.transition-colors {
  transition:
    color var(--transition-base) var(--ease-smooth),
    background-color var(--transition-base) var(--ease-smooth),
    border-color var(--transition-base) var(--ease-smooth);
}

.transition-transform {
  transition: transform var(--transition-base) var(--ease-smooth);
}

/* GPU-accelerated transforms */
.transform-gpu {
  transform: translateZ(0);
  will-change: transform;
  backface-visibility: hidden;
}

/* Animation utilities */
.animate-fade-in {
  animation: fadeIn var(--transition-slow) var(--ease-out);
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-slow) var(--ease-out);
}

.animate-fade-in-down {
  animation: fadeInDown var(--transition-slow) var(--ease-out);
}

.animate-fade-in-left {
  animation: fadeInLeft var(--transition-slow) var(--ease-out);
}

.animate-slide-in {
  animation: slideInRight var(--transition-slow) var(--ease-out);
}

.animate-scale-in {
  animation: scaleIn var(--transition-base) var(--ease-out);
}

.animate-pulse {
  animation: pulse 2s var(--ease-smooth) infinite;
}

.animate-bounce {
  animation: bounce 1s var(--ease-bounce) infinite;
}

/* Hover effects */
.hover-lift {
  transition:
    transform var(--transition-base) var(--ease-smooth),
    box-shadow var(--transition-base) var(--ease-smooth);
}

.hover-lift:hover {
  transform: translateY(-2px) translateZ(0);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.hover-lift-sm:hover {
  transform: translateY(-1px) translateZ(0);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.hover-lift-lg:hover {
  transform: translateY(-4px) translateZ(0);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.15);
}

.hover-scale:hover {
  transform: scale(1.02) translateZ(0);
}

.hover-scale-sm:hover {
  transform: scale(1.01) translateZ(0);
}

.hover-scale-lg:hover {
  transform: scale(1.05) translateZ(0);
}

.hover-glow:hover {
  box-shadow:
    0 0 20px rgba(0, 102, 204, 0.3),
    0 0 40px rgba(0, 102, 204, 0.2);
}

/* Performance optimization */
.optimize-performance {
  contain: layout style paint;
  content-visibility: auto;
}

.optimize-paint {
  will-change: auto;
  contain: paint;
}

/* Text effects */
.text-gradient {
  background: linear-gradient(135deg, var(--color-accent), #0052a3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-rainbow {
  background: linear-gradient(135deg, #dc2626, #f59e0b, #10b981, #0066cc, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-shadow {
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.text-shadow-lg {
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Glassmorphism effects */
.glass-effect {
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: blur(var(--blur-md));
  backdrop-filter: blur(var(--blur-md));
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.glass-effect-dark {
  background: rgba(0, 0, 0, 0.3);
  -webkit-backdrop-filter: blur(var(--blur-md));
  backdrop-filter: blur(var(--blur-md));
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-effect-strong {
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: blur(var(--blur-lg));
  backdrop-filter: blur(var(--blur-lg));
  border: 1px solid rgba(255, 255, 255, 0.25);
}

/* Modern card shadows */
.card-shadow {
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.04),
    0 1px 3px rgba(0, 0, 0, 0.02);
}

.card-shadow-hover:hover {
  box-shadow:
    0 20px 40px rgba(0, 102, 204, 0.12),
    0 8px 16px rgba(0, 0, 0, 0.06);
}

.card-shadow-sm {
  box-shadow: var(--shadow-sm);
}

.card-shadow-md {
  box-shadow: var(--shadow-md);
}

.card-shadow-lg {
  box-shadow: var(--shadow-lg);
}

.card-shadow-xl {
  box-shadow: var(--shadow-xl);
}

.card-shadow-2xl {
  box-shadow: var(--shadow-2xl);
}

/* Border utilities */
.border-radius-sm {
  border-radius: var(--radius-sm);
}

.border-radius-md {
  border-radius: var(--radius-md);
}

.border-radius-lg {
  border-radius: var(--radius-lg);
}

.border-radius-xl {
  border-radius: var(--radius-xl);
}

.border-radius-2xl {
  border-radius: var(--radius-2xl);
}

.border-radius-full {
  border-radius: var(--radius-full);
}

/* Gradient backgrounds */
.bg-gradient-primary {
  background: linear-gradient(135deg, #0066cc, #0052a3);
}

.bg-gradient-accent {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
}

.bg-gradient-success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.bg-gradient-purple {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.bg-gradient-ocean {
  background: linear-gradient(135deg, #06b6d4, #0891b2);
}

/* Backdrop blur utilities */
.backdrop-blur-sm {
  -webkit-backdrop-filter: blur(var(--blur-sm));
  backdrop-filter: blur(var(--blur-sm));
}

.backdrop-blur-md {
  -webkit-backdrop-filter: blur(var(--blur-md));
  backdrop-filter: blur(var(--blur-md));
}

.backdrop-blur-lg {
  -webkit-backdrop-filter: blur(var(--blur-lg));
  backdrop-filter: blur(var(--blur-lg));
}

/* === BUTTON & FORM ENHANCEMENTS === */

/* Disabled state for buttons and inputs */
button:disabled,
input:disabled,
select:disabled,
textarea:disabled,
.btn:disabled,
[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.3);
}

/* Loading spinner utility */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid rgba(0, 102, 204, 0.2);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner--large {
  width: 2em;
  height: 2em;
  border-width: 3px;
}

.spinner--small {
  width: 0.75em;
  height: 0.75em;
  border-width: 1.5px;
}

.spinner--white {
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
}

/* === ENHANCED FORM STYLES === */

/* Form groups */
.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-group:focus-within,
.input-wrapper:focus-within {
  outline: 2px solid rgba(0, 102, 204, 0.15);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  font-size: 0.9375rem;
}

.form-label--required::after {
  content: " *";
  color: #dc2626;
}

/* Input styles */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  color: var(--color-primary);
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-md);
  transition: all var(--transition-base) var(--ease-smooth);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
  background: #fafbfc;
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: #cbd5e1;
}

.form-input--error,
.form-textarea--error,
.form-select--error {
  border-color: #dc2626;
}

.form-input--error:focus,
.form-textarea--error:focus,
.form-select--error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-input--success {
  border-color: #10b981;
}

.form-input--success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Textarea specific */
.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

/* Select specific */
.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.25em 1.25em;
  padding-right: 2.5rem;
}

/* Input with icon */
.input-wrapper {
  position: relative;
}

.input-wrapper .form-input {
  padding-left: 2.75rem;
}

.input-icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.25rem;
  height: 1.25rem;
  color: #94a3b8;
  pointer-events: none;
}

.input-wrapper:focus-within .input-icon {
  color: var(--color-accent);
}

/* Form validation messages */
.form-error,
.form-success,
.form-hint {
  display: block;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  line-height: 1.4;
}

.form-error {
  color: #dc2626;
}

.form-success {
  color: #10b981;
}

.form-hint {
  color: #64748b;
}

/* Checkbox and Radio styles */
.form-checkbox,
.form-radio {
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid #cbd5e1;
  background: #ffffff;
  cursor: pointer;
  transition: all var(--transition-fast) var(--ease-smooth);
  position: relative;
}

.form-checkbox {
  border-radius: var(--radius-sm);
}

.form-radio {
  border-radius: 50%;
}

.form-checkbox:checked,
.form-radio:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.form-checkbox:checked::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 0.375rem;
  height: 0.625rem;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
}

.form-radio:checked::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0.5rem;
  height: 0.5rem;
  background: #ffffff;
  border-radius: 50%;
}

.form-checkbox:focus,
.form-radio:focus {
  outline: 2px solid rgba(0, 102, 204, 0.4);
  outline-offset: 2px;
}

/* Toggle switch */
.form-switch {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1.75rem;
}

.form-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.form-switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #cbd5e1;
  border-radius: var(--radius-full);
  transition: background var(--transition-base) var(--ease-smooth);
}

.form-switch-slider::before {
  content: "";
  position: absolute;
  height: 1.375rem;
  width: 1.375rem;
  left: 0.1875rem;
  bottom: 0.1875rem;
  background: #ffffff;
  border-radius: 50%;
  transition: transform var(--transition-base) var(--ease-smooth);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.form-switch input:checked + .form-switch-slider {
  background: var(--color-accent);
}

.form-switch input:checked + .form-switch-slider::before {
  transform: translateX(1.25rem);
}

.form-switch input:focus + .form-switch-slider {
  outline: 2px solid rgba(0, 102, 204, 0.4);
  outline-offset: 2px;
}

/* Input group (with addons) */
.input-group {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.input-group .form-input {
  flex: 1;
  border-radius: 0;
}

.input-group .form-input:first-child {
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.input-group .form-input:last-child {
  border-top-right-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

.input-addon {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  color: #64748b;
  font-size: 0.9375rem;
  font-weight: 500;
  white-space: nowrap;
}

.input-addon:first-child {
  border-right: none;
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.input-addon:last-child {
  border-left: none;
  border-top-right-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
}

/* Better input focus states */
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(0, 102, 204, 0.4);
  outline-offset: 2px;
  border-color: var(--color-accent);
}

/* Placeholder styling */
::placeholder {
  color: #94a3b8;
  opacity: 1;
}

:-ms-input-placeholder {
  color: #94a3b8;
}

::-ms-input-placeholder {
  color: #94a3b8;
}

/* === ACCESSIBILITY ENHANCEMENTS === */

/* Skip to content link */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  z-index: 10000;
  transition: top var(--transition-base) var(--ease-smooth);
}

.skip-to-content:focus {
  top: 1rem;
  outline: 3px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

/* Reduced motion for all animations */
@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 2s;
  }
}