/* ==========================================================================
   Blog Styling & Typography: Mailson Maia Alves (mailsonm.github.io)
   Zero External Dependencies - Dark & Light Theme Compatible
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Blog Layout & Hero Section
   -------------------------------------------------------------------------- */
.blog-main-container,
.article-main-container {
  flex: 1;
  padding-top: calc(var(--header-height, 70px) + 2rem);
  padding-bottom: 4rem;
}

.blog-hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.blog-main-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.blog-main-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.blog-hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-rss,
.btn-back-portfolio {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.btn-rss {
  background: rgba(249, 115, 22, 0.15);
  color: #f97316;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.btn-rss:hover {
  background: rgba(249, 115, 22, 0.25);
  transform: translateY(-2px);
}

.btn-back-portfolio {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-back-portfolio:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   2. Toolbar, Search & Tags Filter
   -------------------------------------------------------------------------- */
.blog-toolbar-section {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 3rem;
}

.blog-toolbar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
}

.blog-search-box {
  position: relative;
  width: 100%;
  max-width: 600px;
}

.blog-search-box .search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  opacity: 0.6;
  pointer-events: none;
}

#blog-search-input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.8rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

#blog-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.blog-tags-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.filter-btn.active {
  background: var(--accent);
  color: #0b1120;
  border-color: var(--accent);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   3. Posts Grid & Cards
   -------------------------------------------------------------------------- */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1140px;
  margin: 0 auto;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.meta-separator {
  opacity: 0.5;
}

.blog-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.blog-card-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

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

.blog-card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.badge-tag {
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.btn-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

.btn-read-more:hover {
  color: var(--accent-hover);
  transform: translateX(3px);
}

.empty-blog-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 1rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   4. Single Article Layout & Prose Typography
   -------------------------------------------------------------------------- */
.article-wrapper {
  max-width: 820px;
  margin: 0 auto;
  padding: 1rem 1.25rem 4rem;
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.article-nav-top {
  margin-bottom: 1.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--accent);
  transform: translateX(-3px);
}

.article-meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.article-title {
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 1.5rem;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.author-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-thumb {
  border-radius: 50%;
  border: 2px solid var(--accent);
  object-fit: cover;
}

.author-details {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.meta-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.time-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   5. Prose Content (Markdown Body)
   -------------------------------------------------------------------------- */
.prose {
  color: var(--text-secondary);
  font-size: 1.075rem;
  line-height: 1.8;
}

.prose p {
  margin-bottom: 1.5rem;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.35;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.prose h2 {
  font-size: 1.65rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.prose h3 {
  font-size: 1.35rem;
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

.prose a:hover {
  color: var(--accent-hover);
}

.prose ul, .prose ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose strong {
  color: var(--text-primary);
  font-weight: 600;
}

.prose blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg-card);
  padding: 1rem 1.5rem;
  margin: 1.75rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.prose blockquote p:last-child {
  margin-bottom: 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.prose th, .prose td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  text-align: left;
}

.prose th {
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
}

.prose td {
  background: var(--bg-primary);
}

/* --------------------------------------------------------------------------
   6. Syntax Highlighting & Code Blocks
   -------------------------------------------------------------------------- */
.prose pre {
  position: relative;
  background: #0d1117;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  margin: 1.75rem 0;
  overflow-x: auto;
}

[data-theme="light"] .prose pre {
  background: #1e293b;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose p code,
.prose li code {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--accent);
  padding: 0.15em 0.45em;
  border-radius: var(--radius-sm);
}

.prose pre code {
  background: transparent;
  padding: 0;
  border: none;
  color: #e6edf3;
  line-height: 1.55;
}

/* Highlight.js Tokens (Dark / Light Harmonized) */
.hljs-keyword, .hljs-selector-tag, .hljs-built_in { color: #ff7b72; font-weight: 600; }
.hljs-string, .hljs-symbol, .hljs-bullet { color: #a5d6ff; }
.hljs-title, .hljs-section, .hljs-title.class_, .hljs-title.function_ { color: #d2a8ff; font-weight: 600; }
.hljs-comment, .hljs-quote { color: #8b949e; font-style: italic; }
.hljs-variable, .hljs-template-variable { color: #79c0ff; }
.hljs-type, .hljs-params { color: #ffa657; }
.hljs-number, .hljs-literal { color: #79c0ff; }
.hljs-attr, .hljs-attribute { color: #7ee787; }

/* Copy Code Button */
.code-copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #cbd5e1;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
}

.prose pre:hover .code-copy-btn {
  opacity: 1;
}

.code-copy-btn:hover {
  background: var(--accent);
  color: #0b1120;
}

/* --------------------------------------------------------------------------
   7. Article Footer, Share & Author Card
   -------------------------------------------------------------------------- */
.article-footer {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.share-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2.5rem;
  text-align: center;
}

.share-title {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.share-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-share:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.author-bio-card {
  display: flex;
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2.5rem;
  align-items: center;
}

.author-bio-avatar {
  border-radius: 50%;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}

.author-bio-info h4 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.author-bio-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.author-bio-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-bio-contact {
  background: var(--accent);
  color: #0b1120;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

.btn-bio-contact:hover {
  background: var(--accent-hover);
}

.bio-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

.bio-link:hover {
  color: var(--accent);
}

.article-bottom-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-back-bottom {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.btn-back-bottom:hover {
  transform: translateX(-4px);
}

/* --------------------------------------------------------------------------
   8. Responsive Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .author-bio-card {
    flex-direction: column;
    text-align: center;
  }
  .author-bio-links {
    justify-content: center;
  }
  .article-meta-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}