/* Component Styles for Portfolio Enhancement */

/* Section Styles */
.projects {
  padding: 120px 0;
  background: var(--bg-primary);
}

.blog {
  padding: 120px 0;
  background: var(--bg-secondary);
}

.skills-timeline-section {
  padding: 120px 0;
  background: var(--bg-primary);
}

/* Project Gallery Styles */
.project-filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.filter-btn.active {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: var(--button-bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.project-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px var(--shadow-color);
}

.project-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.project-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.project-card:hover .project-thumbnail img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-color);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.view-project-btn {
  background: var(--button-bg);
  color: var(--button-text);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.view-project-btn:hover {
  background: var(--button-bg-hover);
  transform: translateY(-2px);
}

.project-info {
  padding: 1.5rem;
}

.project-title {
  color: var(--text-primary);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Project Modal Styles */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-color);
  backdrop-filter: blur(10px);
}

.modal-content {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 50px var(--shadow-color);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.modal-close:hover {
  background: var(--button-secondary-bg-hover);
  border-color: var(--border-color-hover);
}

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

.modal-header h2 {
  color: var(--text-primary);
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  background: var(--button-bg);
  color: var(--button-text);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.project-link:hover {
  background: var(--button-bg-hover);
  transform: translateY(-1px);
}

.modal-body {
  padding: 2rem;
}

.project-images {
  margin-bottom: 2rem;
}

.project-images img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.project-full-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.project-meta {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.project-meta p {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.project-meta strong {
  color: var(--text-primary);
}

/* Blog System Styles */
.blog-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.search-container {
  display: flex;
  gap: 0.5rem;
  max-width: 400px;
}

.blog-search {
  flex: 1;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--input-text);
  padding: 0.75rem;
  border-radius: 6px;
  font-size: 1rem;
}

.blog-search:focus {
  outline: none;
  border-color: var(--input-border-focus);
}

.search-btn {
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.search-btn:hover {
  background: var(--button-secondary-bg-hover);
  border-color: var(--border-color-hover);
}

.blog-filters {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.blog-filter-btn {
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.blog-filter-btn.active {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: var(--button-bg);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.article-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--border-color-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.article-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.article-category {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}

.article-title {
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.article-excerpt {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

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

.tag {
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 500;
}

.read-article-btn {
  background: var(--button-bg);
  color: var(--button-text);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.read-article-btn:hover {
  background: var(--button-bg-hover);
  transform: translateY(-1px);
}

.no-articles {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  grid-column: 1 / -1;
  padding: 2rem;
}

/* Article View Styles */
.article-view {
  max-width: 800px;
  margin: 0 auto;
}

.back-to-list-btn {
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.back-to-list-btn:hover {
  background: var(--button-secondary-bg-hover);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

.full-article {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
}

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

.article-content {
  padding: 2rem;
  line-height: 1.8;
}

.article-content h1,
.article-content h2,
.article-content h3 {
  color: var(--text-primary);
  margin-bottom: 1rem;
  margin-top: 2rem;
}

.article-content h1:first-child,
.article-content h2:first-child,
.article-content h3:first-child {
  margin-top: 0;
}

.article-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.article-content strong {
  color: var(--text-primary);
}

.article-content em {
  color: var(--text-secondary);
  font-style: italic;
}

/* Navigation Styles */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all var(--transition-normal);
}

.hamburger-btn:hover {
  background: var(--button-secondary-bg-hover);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.nav-links a.active {
  color: var(--text-primary);
  font-weight: 600;
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
}

/* Mobile Navigation Styles */
@media (max-width: 768px) {
  .hamburger-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    flex-direction: column;
    padding: 6rem 2rem 2rem;
    gap: 2rem;
    transition: right 0.3s ease;
    z-index: 1001;
    box-shadow: -5px 0 15px var(--shadow-color);
  }

  .nav-links.mobile-menu-open {
    right: 0;
  }

  .nav-links a {
    font-size: 1.1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
  }

  .nav-links a:hover {
    color: var(--text-primary);
    padding-left: 0.5rem;
  }

  .nav-links a.active::after {
    bottom: 0;
    height: 1px;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .projects-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .project-filters,
  .blog-filters {
    justify-content: flex-start;
  }
  
  .blog-controls {
    align-items: stretch;
  }
  
  .search-container {
    max-width: none;
  }
  
  .modal-content {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
  }
  
  .modal-header,
  .modal-body {
    padding: 1.5rem;
  }
  
  .project-links {
    flex-direction: column;
  }
}
/* Skills Timeline Styles */
.skills-timeline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 2rem;
}

.timeline-section {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
}

.timeline-title,
.skills-title {
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
}

.timeline-container {
  position: relative;
}

.timeline-line {
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-items {
  position: relative;
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
  padding-left: 60px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -20px;
  top: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-icon {
  width: 32px;
  height: 32px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  position: relative;
  z-index: 1;
}

.timeline-item.work .timeline-icon {
  border-color: var(--accent-color);
  background: var(--accent-color);
  color: var(--bg-primary);
}

.timeline-item.education .timeline-icon {
  border-color: var(--secondary-color);
  background: var(--secondary-color);
  color: var(--bg-primary);
}

.timeline-content {
  background: var(--card-hover-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  border-color: var(--border-color-hover);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.timeline-header {
  margin-bottom: 1rem;
}

.timeline-content .timeline-title {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  text-align: left;
}

.timeline-company {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  display: block;
  margin-bottom: 0.25rem;
}

.timeline-duration {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 400;
}

.timeline-location {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.timeline-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.timeline-technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.timeline-details-btn {
  background: var(--button-secondary-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.85rem;
  font-weight: 500;
}

.timeline-details-btn:hover {
  background: var(--button-secondary-bg-hover);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

/* Timeline Modal Styles */
.timeline-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.timeline-modal .modal-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 2rem 2rem 1rem;
}

.experience-icon {
  width: 60px;
  height: 60px;
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.experience-info h2 {
  margin-bottom: 0.5rem;
}

.experience-info h3 {
  color: var(--text-secondary);
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.experience-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.experience-description,
.experience-achievements,
.experience-technologies {
  margin-bottom: 2rem;
}

.experience-description h4,
.experience-achievements h4,
.experience-technologies h4 {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.experience-description p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.experience-achievements ul {
  list-style: none;
  padding: 0;
}

.experience-achievements li {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.experience-achievements li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

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

/* Skills Section Styles */
.skills-section {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
}

.skills-categories {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.skill-category {
  background: var(--card-hover-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 1.5rem;
}

.skill-category-title {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;
}

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

.skill-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1rem;
  transition: all var(--transition-normal);
}

.skill-item:hover {
  border-color: var(--border-color-hover);
  box-shadow: 0 2px 8px var(--shadow-color);
}

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

.skill-name {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
}

.skill-level {
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.level-beginner {
  background: rgba(255, 193, 7, 0.2);
  color: #ffc107;
}

.level-intermediate {
  background: rgba(0, 123, 255, 0.2);
  color: #007bff;
}

.level-advanced {
  background: rgba(40, 167, 69, 0.2);
  color: #28a745;
}

.level-expert {
  background: rgba(220, 53, 69, 0.2);
  color: #dc3545;
}

.skill-progress {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.skill-progress-bar {
  flex: 1;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
}

.skill-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
  border-radius: 3px;
  transition: width 0.8s ease;
}

.skill-percentage {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 35px;
  text-align: right;
}

.skill-experience {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
}

/* Responsive Design for Timeline */
@media (max-width: 1024px) {
  .skills-timeline {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .timeline-section,
  .skills-section {
    padding: 1.5rem;
  }
  
  .timeline-item {
    padding-left: 50px;
  }
  
  .timeline-marker {
    left: -15px;
    width: 30px;
    height: 30px;
  }
  
  .timeline-icon {
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
  }
  
  .timeline-line {
    left: 15px;
  }
  
  .timeline-content {
    padding: 1rem;
  }
  
  .timeline-modal .modal-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .experience-meta {
    flex-direction: column;
    gap: 0.25rem;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
}