/* Expertise-specific styles */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.expertise-card {
  background: var(--card-bg);
  border-radius: 12px; /* Updated from 8px */
  overflow: hidden; /* Added */
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Enhanced */
  transition: transform 0.3s ease, box-shadow 0.3s ease; /* Enhanced */
  display: flex; /* Added */
  flex-direction: column; /* Added */
}

.expertise-card:hover {
  transform: translateY(-4px); /* Updated from -5px */
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15); /* Added */
}

.expertise-card .card-image {
  height: 200px;
  overflow: hidden;
}

.expertise-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.expertise-card .card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.expertise-card .card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-color);
}

.expertise-card .card-description {
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex: 1;
}

.expertise-card .card-link {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.expertise-card .card-link:hover {
  color: var(--primary-hover);
}

/* Card-specific styles */
.robotics-card .card-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.n8nchief-card .complexity {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.n8nchief-card .complexity.intermediate {
  background: #fef3c7;
  color: #92400e;
}

.n8nchief-card .complexity.advanced {
  background: #dbeafe;
  color: #1e40af;
}

.n8nchief-card .complexity.expert {
  background: #fce7f3;
  color: #9f1239;
}

.leadership-card .card-impact {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.leadership-card .impact-value {
  font-weight: 600;
}

.leadership-card .impact-value.high {
  color: #059669;
}

.leadership-card .impact-value.critical {
  color: #dc2626;
}

.leadership-card .impact-value.long-term {
  color: #7c3aed;
}

.leadership-card .impact-value.transformative {
  color: #ea580c;
}

.innovation-card .badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.innovation-card .badge.foundational {
  background: #e0e7ff;
  color: #3730a3;
}

.innovation-card .badge.practical {
  background: #d1fae5;
  color: #065f46;
}

.innovation-card .badge.strategic {
  background: #fed7aa;
  color: #9a3412;
}

.innovation-card .badge.transformative {
  background: #f3e8ff;
  color: #6b21a8;
}

.skill-progress-container {
  display: grid;
  gap: 1.5rem;
}

.skill-item {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.skill-name {
  font-weight: 600;
  color: var(--text-color);
}

.skill-level {
  font-weight: 500;
  color: var(--primary-color);
}

.skill-bar {
  height: 8px;
  background: var(--border-color); /* Changed from accent-color */
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  border-radius: 4px;
  transition: width 1s ease;
}

.skill-category {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.expertise-timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline-container {
  position: relative;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 2rem; /* Changed from 50% */
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color)); /* Enhanced */
}

.timeline-item {
  position: relative;
  padding-left: 4rem;
  margin-bottom: 2rem;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.marker-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--primary-color);
  border: 3px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.marker-date {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.timeline-content {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.timeline-description {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.timeline-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Expertise Detail Layouts */
.expertise-detail {
  padding: 2rem 0;
}

.expertise-detail .container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary-color);
}

.breadcrumb .separator {
  color: var(--text-muted);
}

.breadcrumb .current {
  color: var(--text-color);
  font-weight: 500;
}

.expertise-article {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.article-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.article-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
}

.article-meta .category {
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}

.article-meta .reading-time {
  color: var(--text-muted);
}

.article-content {
  line-height: 1.8;
  color: var(--text-color);
}

.article-content h2 {
  font-size: 1.875rem;
  font-weight: 600;
  margin: 2rem 0 1rem;
  color: var(--text-color);
}

.article-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-color);
}

.article-content p {
  margin-bottom: 1rem;
}

.article-content ul, .article-content ol {
  margin-bottom: 1rem;
  padding-left: 2rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content code {
  background: var(--code-bg);
  padding: 0.125rem 0.25rem;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.875em;
}

.article-content pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1rem 0;
}

.article-content pre code {
  background: none;
  padding: 0;
}

.article-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.related-topics h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.topic-card {
  display: block;
  padding: 1rem;
  background: var(--bg-color);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-color);
  transition: background-color 0.3s ease;
}

.topic-card:hover {
  background: var(--hover-bg);
}

.topic-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.topic-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.navigation-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.nav-link {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  background: var(--bg-color);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-color);
  transition: background-color 0.3s ease;
}

.nav-link:hover {
  background: var(--hover-bg);
}

.nav-link.prev {
  grid-column: 1;
}

.nav-link.next {
  grid-column: 2;
  text-align: right;
}

.nav-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.nav-title {
  font-weight: 600;
}

/* Sidebar */
.expertise-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-section {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.sidebar-section h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-nav .nav-item {
  padding: 0.5rem 0;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 4px;
  transition: color 0.3s ease;
}

.sidebar-nav .nav-item:hover {
  color: var(--primary-color);
}

.sidebar-nav .nav-item.active {
  color: var(--primary-color);
  font-weight: 500;
}

.tech-list, .metrics-list, .philosophy-list, .framework-list {
  list-style: none;
  padding: 0;
}

.tech-list li, .metrics-list .metric-item, .philosophy-list .philosophy-item, .framework-list .framework-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.tech-list li:last-child, .metrics-list .metric-item:last-child, 
.philosophy-list .philosophy-item:last-child, .framework-list .framework-item:last-child {
  border-bottom: none;
}

.cert-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cert-item strong {
  display: block;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}

.cert-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.tech-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  padding: 0.25rem 0.5rem;
  background: var(--bg-color);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.metrics-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.metric-item {
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.impact-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.impact-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.impact-item:last-child {
  border-bottom: none;
}

.impact-number {
  font-weight: 600;
  color: var(--primary-color);
}

.impact-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .expertise-detail .container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .article-title {
    font-size: 2rem;
  }
  
  .navigation-links {
    grid-template-columns: 1fr;
  }
  
  .nav-link.next {
    text-align: left;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .metrics-list {
    grid-template-columns: 1fr;
  }
  
  .timeline-container::before {
    left: 1rem;
  }
  
  .timeline-item {
    padding-left: 2.5rem;
  }
}