/* ==========================================================================
   Components: Common Badges & Tech Tags
   ========================================================================== */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--tag-text);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  border-color: var(--border-hover);
  color: var(--accent-primary);
  transform: translateY(-1px);
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-badge);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.period-badge {
  color: var(--text-secondary);
}

.active-badge {
  color: var(--accent-primary);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-weight: 600;
}

.location-badge {
  color: var(--text-muted);
}

/* ==========================================================================
   Component: Work Experience Timeline
   ========================================================================== */
.timeline-container {
  display: flex;
  flex-direction: column;
  position: relative;
}

.timeline-item {
  display: flex;
  position: relative;
  padding-bottom: 2.25rem;
}

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

.timeline-marker {
  width: 40px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.marker-dot {
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--bg-primary);
  border: 3px solid var(--text-muted);
  margin-top: 1.5rem;
  z-index: 2;
  transition: all var(--transition-fast);
}

.current-marker .marker-dot {
  border-color: var(--accent-primary);
  background: var(--accent-primary);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.marker-line {
  position: absolute;
  top: calc(1.5rem + 14px);
  bottom: 0;
  width: 2px;
  background: var(--border-subtle);
  z-index: 1;
}

.timeline-item:last-child .marker-line {
  display: none;
}

.timeline-content {
  flex: 1;
  padding: 1.75rem;
  margin-left: 0.75rem;
}

.item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.item-title-group {
  flex: 1;
  min-width: 240px;
}

.item-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.item-company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.company-link {
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.company-link:hover {
  text-decoration: underline;
}

.item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.item-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Component: Publications Grid & Cards
   ========================================================================== */
.publications-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.publication-card {
  padding: 1.75rem;
}

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

.pub-type-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pub-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.type-badge {
  background: var(--accent-glow);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.year-badge {
  background: var(--bg-badge);
  color: var(--text-muted);
}

.pub-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--bg-pill);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.pub-link-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.pub-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pub-title a {
  color: var(--text-primary);
}

.pub-title a:hover {
  color: var(--accent-primary);
}

.pub-authors {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.pub-venue {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.pub-doi {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pub-summary {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ==========================================================================
   Component: Education Grid & Cards
   ========================================================================== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.education-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.edu-header {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.edu-title-group {
  width: 100%;
}

.edu-degree {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.35;
}

.edu-institution {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.institution-link {
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.edu-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.edu-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.honor-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.gpa-badge {
  background: var(--bg-badge);
  color: var(--text-secondary);
}

.award-badge {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-weight: 600;
}

.edu-summary {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.courses-group {
  margin-top: auto;
}

.courses-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.45rem;
}

.course-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.course-chip {
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-badge);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Component: Skills Grid & Proficiency Badges
   ========================================================================== */
.skills-category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
}

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

.skill-category-card {
  padding: 1.25rem 1.4rem;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.category-icon-box {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-icon-box svg {
  width: 16px;
  height: 16px;
}

.category-name {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skills-pill-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-badge);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--accent-primary);
  transform: translateY(-1px);
}

.skill-pill-highlight {
  border-color: rgba(99, 102, 241, 0.3);
  background: var(--accent-glow);
  color: var(--accent-primary);
  font-weight: 600;
}

.skill-pill-level {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  opacity: 0.8;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-item {
  padding: 0.5rem 0.75rem;
  background: var(--bg-badge);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.skill-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.skill-highlight {
  border-color: rgba(99, 102, 241, 0.25);
  background: rgba(99, 102, 241, 0.06);
}

.skill-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skill-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-level-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.level-expert {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

.level-advanced {
  background: rgba(14, 165, 233, 0.15);
  color: #0ea5e9;
}

.level-proficient {
  background: rgba(139, 92, 246, 0.15);
  color: #8b5cf6;
}

.level-intermediate {
  background: rgba(100, 116, 139, 0.15);
  color: #64748b;
}

/* ==========================================================================
   Component: Projects Showcase Grid & Cards
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.project-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  color: var(--accent-primary);
  border: 1px solid rgba(99, 102, 241, 0.2);
  margin-bottom: 0.4rem;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.icon-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-badge);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.icon-link-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.primary-icon-btn {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.primary-icon-btn:hover {
  background: var(--accent-primary-hover);
  color: #ffffff;
}

.project-description {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.project-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Component: Certifications & Honors Grid
   ========================================================================== */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.certification-card {
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.cert-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-details {
  flex: 1;
}

.cert-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.cert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-badge);
  color: var(--text-muted);
}

.cert-issuer {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.cert-date {
  color: var(--text-muted);
}

.cert-id {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.cert-verify-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.cert-verify-link:hover {
  text-decoration: underline;
}