/* Enhanced Article Page Styles */

/* Article Main Container */
.article-main {
  padding-top: 120px;
  padding-bottom: 60px;
  background-color: var(--background);
}

/* Back Link */
.back-link {
  margin-bottom: 20px;
}

.back-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--card);
  color: var(--text);
  border-radius: 30px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.back-link a:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(var(--primary-rgb), 0.2);
}

/* Article Header */
.article-header {
  margin-bottom: 30px;
  animation: fadeIn 0.8s ease-out;
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--text);
  transition: color 0.3s ease;
  line-height: 1.2;
}

/* Article Meta */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 15px;
  font-size: 0.9rem;
  color: var(--accent);
  transition: color 0.3s ease;
}

.article-meta > div {
  display: flex;
  align-items: center;
  gap: 5px;
  transition: transform 0.3s ease;
  padding: 5px 10px;
  background-color: var(--card);
  border-radius: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.article-meta > div:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-meta i {
  color: var(--primary);
}

/* Article Tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  animation: fadeIn 1s ease-out;
}

.tag {
  padding: 5px 12px;
  background-color: var(--border);
  color: var(--accent);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.tag:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(var(--primary-rgb), 0.2);
}

/* Article Featured Image */
.article-featured-image {
  margin-bottom: 30px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  animation: fadeIn 1.2s ease-out;
  transition: transform 0.5s ease, box-shadow 0.5s ease;
  position: relative;
  aspect-ratio: 16 / 9;
}

.article-featured-image:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.article-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.article-featured-image:hover img {
  transform: scale(1.02);
}

/* Article Content */
.article-content {
  margin-bottom: 40px;
  line-height: 1.8;
  animation: fadeIn 1.4s ease-out;
  background-color: var(--card);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.article-section {
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 0.8s ease-out forwards;
}

.article-content h2 {
  font-size: 1.8rem;
  margin: 30px 0 15px;
  color: var(--text);
  transition: color 0.3s ease;
  position: relative;
  padding-bottom: 10px;
}

.article-content h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background-color: var(--primary);
  border-radius: 3px;
}

.article-content h3 {
  font-size: 1.4rem;
  margin: 25px 0 15px;
  color: var(--text);
  transition: color 0.3s ease;
}

.article-content p {
  margin-bottom: 20px;
  transition: color 0.3s ease;
}

.article-content ul,
.article-content ol {
  margin-bottom: 20px;
  padding-left: 20px;
}

.article-content li {
  margin-bottom: 10px;
  position: relative;
}

.article-content ul li::before {
  content: "•";
  color: var(--primary);
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin: 20px 0;
  box-shadow: var(--shadow);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.article-content img:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  cursor: pointer;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  transition: color 0.3s ease;
}

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

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 15px 20px;
  margin: 20px 0;
  font-style: italic;
  color: var(--text);
  background-color: var(--background);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.article-content code {
  background-color: var(--border);
  padding: 2px 5px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
  transition: background-color 0.3s ease;
}

.article-content pre {
  background-color: var(--border);
  padding: 15px;
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: 20px 0;
  transition: background-color 0.3s ease;
}

.article-content pre code {
  background-color: transparent;
  padding: 0;
}

/* Article Links */
.article-links-container {
  margin-bottom: 30px;
}

.article-links {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.article-links a {
  padding: 12px 25px;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  min-width: 150px;
}

/* Article Stats */
.article-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
  background-color: var(--card);
  padding: 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.stat-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 15px;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.stat-item:hover {
  background-color: var(--background);
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.stat-item i {
  font-size: 1.5rem;
  color: var(--primary);
}

.stat-item h4 {
  margin-bottom: 5px;
  color: var(--text);
  font-size: 1.1rem;
}

.stat-item p {
  color: var(--accent);
  font-size: 0.9rem;
}

.stat-value {
  font-weight: 600;
  color: var(--primary);
}

/* Table of Contents */
.article-toc {
  background-color: var(--card);
  padding: 20px;
  border-radius: var(--border-radius);
  margin-bottom: 30px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.article-toc h3 {
  margin-bottom: 15px;
  color: var(--text);
  font-size: 1.3rem;
}

.article-toc ul {
  list-style: none;
  padding-left: 0;
}

.article-toc li {
  margin-bottom: 10px;
}

.article-toc li.h3 {
  padding-left: 20px;
}

.article-toc a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.article-toc a:hover {
  color: var(--primary);
  transform: translateX(5px);
}

/* Floating Table of Contents */
.floating-toc-container {
  position: relative;
  display: none; /* Hidden on mobile by default */
}

.floating-toc {
  background-color: var(--card);
  padding: 20px;
  border-radius: var(--border-radius);
  margin-bottom: 30px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  width: 250px;
  max-height: 80vh;
  overflow-y: auto;
  transition: all 0.3s ease;
}

.floating-toc.sticky {
  position: fixed;
  top: 80px; /* Match header height */
  transition: top 0.3s ease;
}

.floating-toc h3 {
  margin-bottom: 15px;
  color: var(--text);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.floating-toc h3 i {
  color: var(--primary);
}

.floating-toc ul {
  list-style: none;
  padding-left: 0;
}

.floating-toc li {
  margin-bottom: 10px;
  padding-left: 0;
  position: relative;
}

.floating-toc li.h3 {
  padding-left: 15px;
}

.floating-toc a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
  display: block;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 0.9rem;
}

.floating-toc a:hover {
  color: var(--primary);
  background-color: var(--background);
  transform: translateX(5px);
}

.floating-toc a.active {
  color: var(--primary);
  background-color: var(--background);
  font-weight: 600;
  border-left: 2px solid var(--primary);
}

.floating-toc-toggle {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--primary);
  color: white;
  border: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  z-index: 100;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  border: 2px solid white;
}

.floating-toc-toggle:hover {
  transform: scale(1.1);
}

.floating-toc-mobile {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background-color: var(--card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 15px;
  z-index: 99;
  width: 80%;
  max-width: 300px;
  max-height: 60vh;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  border-left: 4px solid var(--primary);
}

.floating-toc-mobile.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Reading Progress Bar */
.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 9999;
}

.reading-progress-bar {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.2s ease;
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border: 5px solid white;
  border-radius: 5px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: white;
  font-size: 40px;
  cursor: pointer;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Adjust article layout for TOC */
@media (min-width: 992px) {
  .article-layout {
    display: grid;
    grid-template-columns: 1fr 250px;
    gap: 30px;
    align-items: start;
  }

  .floating-toc-container {
    display: block;
  }

  /* Add smooth transition for sticky TOC */
  .floating-toc {
    transition: transform 0.3s ease, top 0.3s ease;
    will-change: transform, position;
  }

  /* Add subtle animation when TOC becomes sticky */
  .floating-toc.sticky {
    animation: stickyFadeIn 0.3s ease;
  }

  @keyframes stickyFadeIn {
    from {
      opacity: 0.8;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (max-width: 991px) {
  .floating-toc-toggle {
    display: flex;
  }
}

/* Responsive Styles */
@media (max-width: 768px) {
  .article-main {
    padding-top: 80px;
    padding-bottom: 40px;
  }

  .article-header h1 {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  .article-meta {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .article-meta > div {
    width: 100%;
  }

  .article-tags {
    flex-wrap: wrap;
  }

  .article-content {
    padding: 20px 15px;
  }

  .article-content h2 {
    font-size: 1.5rem;
    margin: 25px 0 12px;
  }

  .article-content h3 {
    font-size: 1.3rem;
    margin: 20px 0 10px;
  }

  .article-links {
    flex-direction: column;
    width: 100%;
  }

  .article-links a {
    width: 100%;
    margin-bottom: 10px;
    text-align: center;
  }

  .article-stats {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 15px;
  }

  .stat-item {
    padding: 10px;
  }

  .back-link a {
    padding: 6px 12px;
    font-size: 0.9rem;
  }

  .floating-toc-toggle {
    width: 40px;
    height: 40px;
    bottom: 15px;
    right: 15px;
  }

  .floating-toc-mobile {
    width: 85%;
    max-width: 280px;
    max-height: 50vh;
    bottom: 70px;
  }
}

@media (max-width: 576px) {
  .article-header h1 {
    font-size: 1.6rem;
  }

  .article-content {
    padding: 15px 12px;
  }

  .article-content h2 {
    font-size: 1.4rem;
  }

  .article-content h3 {
    font-size: 1.2rem;
  }

  .article-content p,
  .article-content li {
    font-size: 0.95rem;
  }

  .article-featured-image {
    margin-bottom: 20px;
  }

  .article-toc {
    padding: 15px;
    margin-bottom: 20px;
  }

  .article-toc h3 {
    font-size: 1.1rem;
  }
}

/* Additional Responsive Fixes for Article Pages */
@media (max-width: 767px) {
  .article-main {
    padding-top: 90px;
  }

  .article-header h1 {
    font-size: 1.8rem;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-content {
    padding: 20px;
  }

  .article-content h2 {
    font-size: 1.6rem;
  }

  .article-content h3 {
    font-size: 1.3rem;
  }

  .article-links a {
    width: 100%;
    margin-bottom: 10px;
  }

  .floating-toc-toggle {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 575px) {
  .article-header h1 {
    font-size: 1.6rem;
  }

  .article-content {
    padding: 15px;
  }

  .article-content h2 {
    font-size: 1.4rem;
  }

  .article-content h3 {
    font-size: 1.2rem;
  }

  .article-stats {
    grid-template-columns: 1fr;
  }

  .stat-item {
    padding: 10px;
  }
}