/* ==========================================================
   BLOG STYLES — Thinkler
   Listing page + Article page
   Follows existing BEM + CSS custom properties pattern
   ========================================================== */

/* ----------------------------------------------------------
   BLOG LISTING — .blog-listing
   ---------------------------------------------------------- */

.blog-listing {
  padding: var(--spacing-xl) 0;
}

.blog-listing__filters {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.blog-filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid rgba(198, 183, 190, 0.2);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.blog-filter-btn:hover,
.blog-filter-btn--active {
  background: var(--color-cyan);
  color: var(--color-primary);
  border-color: var(--color-cyan);
}

.blog-listing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* ----------------------------------------------------------
   BLOG CARD — .blog-card
   ---------------------------------------------------------- */

.blog-card {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.blog-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-dark-light) 0%, #1f1f38 100%);
  position: relative;
  overflow: hidden;
}

.blog-card__image-gradient {
  position: absolute;
  inset: 0;
  opacity: 0.5;
}

.blog-card__category-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.25rem 0.75rem;
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card__body {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.blog-card__meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-muted);
  flex-shrink: 0;
}

.blog-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card__title {
  color: var(--color-cyan);
}

.blog-card__excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--card-border);
  margin-top: auto;
}

.blog-card__author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
}

.blog-card__author-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-teal), var(--color-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-primary);
}

.blog-card__read-more {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-cyan);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.blog-card:hover .blog-card__read-more {
  gap: 0.5rem;
}

/* ----------------------------------------------------------
   BLOG EMPTY STATE
   ---------------------------------------------------------- */

.blog-listing__empty {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  color: var(--color-text-muted);
  grid-column: 1 / -1;
}

.blog-listing__empty-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  opacity: 0.5;
}

/* ----------------------------------------------------------
   BLOG HERO — .blog-hero
   ---------------------------------------------------------- */

.blog-hero {
  padding: 6rem 0 3rem;
  text-align: center;
  background: var(--color-dark-light);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero__label {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.blog-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.blog-hero__title-highlight {
  background: linear-gradient(135deg, var(--color-cyan), var(--color-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ----------------------------------------------------------
   BLOG POST — .blog-post
   ---------------------------------------------------------- */

.blog-post {
  padding: var(--spacing-lg) 0 var(--spacing-xl);
}

.blog-post__layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--spacing-lg);
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

/* Breadcrumbs */
.blog-post__breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.blog-post__breadcrumbs a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.blog-post__breadcrumbs a:hover {
  color: var(--color-cyan);
}

.blog-post__breadcrumbs-sep {
  font-size: 0.75rem;
  opacity: 0.5;
}

/* Post header */
.blog-post__header {
  margin-bottom: var(--spacing-md);
}

.blog-post__category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.blog-post__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.blog-post__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.blog-post__meta-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.blog-post__meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-muted);
}

/* Post body — reading optimized */
.blog-post__body {
  max-width: 720px;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text);
}

.blog-post__body h2 {
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 2.5rem 0 1rem;
  color: var(--color-light);
}

.blog-post__body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 2rem 0 0.75rem;
  color: var(--color-light);
}

.blog-post__body h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--color-light);
}

.blog-post__body p {
  margin-bottom: 1.5rem;
}

.blog-post__body strong {
  font-weight: 600;
  color: var(--color-light);
}

.blog-post__body a {
  color: var(--color-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-post__body a:hover {
  text-decoration: none;
}

.blog-post__body ul,
.blog-post__body ol {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.blog-post__body ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.blog-post__body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-cyan);
}

.blog-post__body ol {
  counter-reset: list-counter;
}

.blog-post__body ol li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.5rem;
  counter-increment: list-counter;
}

.blog-post__body ol li::before {
  content: counter(list-counter) ".";
  position: absolute;
  left: 0;
  font-weight: 600;
  color: var(--color-cyan);
}

.blog-post__body blockquote {
  border-left: 3px solid var(--color-cyan);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: rgba(0, 212, 255, 0.05);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.blog-post__body code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.875em;
  background: rgba(0, 212, 255, 0.08);
  color: var(--color-cyan);
  padding: 0.125em 0.375em;
  border-radius: 4px;
}

.blog-post__body pre {
  background: #0d0d1a;
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  overflow-x: auto;
  margin: 2rem 0;
}

.blog-post__body pre code {
  background: none;
  padding: 0;
  color: #a8e6cf;
  font-size: 0.9rem;
  line-height: 1.6;
}

.blog-post__body img {
  width: 100%;
  border-radius: var(--border-radius);
  margin: 2rem 0;
  border: 1px solid var(--card-border);
}

.blog-post__body hr {
  border: none;
  border-top: 1px solid var(--card-border);
  margin: 3rem 0;
}

/* Table of contents sidebar */
.blog-post__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-md));
}

.blog-toc {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
}

.blog-toc__title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.blog-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.blog-toc__item {
  border-left: 2px solid rgba(198, 183, 190, 0.15);
  padding: 0.25rem 0 0.25rem 0.75rem;
  transition: border-color var(--transition-fast);
}

.blog-toc__item--active {
  border-color: var(--color-cyan);
}

.blog-toc__link {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  transition: color var(--transition-fast);
  display: block;
}

.blog-toc__item--active .blog-toc__link,
.blog-toc__link:hover {
  color: var(--color-cyan);
}

.blog-toc__item--h3 {
  padding-left: 1.5rem;
  font-size: 0.8125rem;
}

/* Post CTA */
.blog-post__cta {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(69, 157, 154, 0.05) 100%);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.blog-post__cta-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.blog-post__cta-text {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* Share buttons */
.blog-post__share {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  margin: var(--spacing-md) 0;
}

.blog-post__share-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-share-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid rgba(198, 183, 190, 0.2);
  color: var(--color-text-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.blog-share-btn:hover {
  border-color: rgba(198, 183, 190, 0.5);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.blog-share-btn--twitter:hover { border-color: #1da1f2; color: #1da1f2; }
.blog-share-btn--linkedin:hover { border-color: #0a66c2; color: #0a66c2; }
.blog-share-btn--whatsapp:hover { border-color: #25d366; color: #25d366; }

/* Related posts */
.blog-related {
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--card-border);
}

.blog-related__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.blog-related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

/* ----------------------------------------------------------
   ANIMATED BACKGROUND (matching site style)
   ---------------------------------------------------------- */

.blog-hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.blog-hero__bg-dot {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.04);
  animation: blogBgPulse 8s ease-in-out infinite;
}

.blog-hero__bg-dot:nth-child(1) {
  width: 400px; height: 400px;
  top: -100px; right: 10%;
  animation-delay: 0s;
}

.blog-hero__bg-dot:nth-child(2) {
  width: 300px; height: 300px;
  bottom: -50px; left: 5%;
  animation-delay: 3s;
}

@keyframes blogBgPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* ----------------------------------------------------------
   RESPONSIVE
   ---------------------------------------------------------- */

@media (max-width: 1024px) {
  .blog-listing__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .blog-post__sidebar {
    display: none;
  }

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

@media (max-width: 768px) {
  .blog-listing__grid {
    grid-template-columns: 1fr;
  }

  .blog-hero {
    padding: 5rem 0 2.5rem;
  }

  .blog-post__body {
    font-size: 1rem;
  }

  .blog-post__meta {
    gap: 0.5rem;
  }

  .blog-post__cta {
    padding: var(--spacing-md);
  }

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

@media (max-width: 480px) {
  .blog-listing__filters {
    gap: 0.375rem;
  }

  .blog-filter-btn {
    font-size: 0.8125rem;
    padding: 0.375rem 0.875rem;
  }
}