/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #141414;
  --bg-card: #0a0a0a;
  --border: #222222;
  --text-primary: #ffffff;
  --text-secondary: #999999;
  --text-muted: #666666;
  --accent: #ffffff;
  --accent-hover: #cccccc;
  --green: #999999;
  --orange: #999999;
  --red: #999999;
  --purple: #999999;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 4px 16px rgba(0,0,0,0.5);
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--text-primary); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.7; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.section-title {
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.95rem;
}
.section-title-link {
  color: var(--text-primary);
  text-decoration: none;
  position: relative;
  display: inline-block;
}
.section-title-link:hover { color: var(--text-primary); }
.section-title-hint {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-muted);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s, transform 0.2s;
  margin-top: 4px;
}
.section-title-link:hover .section-title-hint {
  opacity: 1;
  transform: translateY(0);
}
.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--border);
  margin: 0.75rem auto 0;
}

section {
  padding: 80px 0;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}
.btn-primary:hover {
  background: transparent;
  color: var(--text-primary);
  opacity: 1;
}
.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--text-primary);
  opacity: 1;
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}
.nav-logo:hover { opacity: 0.7; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
}
.nav-links a {
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 400;
  transition: all var(--transition);
  letter-spacing: 0.3px;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
  opacity: 1;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.1rem;
  cursor: pointer;
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 120px 24px 80px;
}
.hero-bg {
  display: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
  object-fit: cover;
}
#hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}
.hero-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 1.5rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.hero-meta i { color: var(--text-muted); margin-right: 4px; }
.hero-meta a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.hero-meta a:hover { color: var(--text-primary); }
.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-bottom: 2rem;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== ABOUT ===== */
#about { background: var(--bg-secondary); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.about-details {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.about-detail-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.about-detail-tag i {
  color: var(--text-muted);
  margin-right: 6px;
}
.about-skills h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.languages-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lang-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-bar .lang-name {
  width: 90px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: right;
  flex-shrink: 0;
}
.lang-bar .bar-track {
  flex: 1;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}
.lang-bar .bar-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--text-primary);
  transition: width 1s ease;
}
.lang-bar .lang-pct {
  width: 36px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* About highlights */
.about-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.5rem;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.highlight-item i {
  color: var(--text-muted);
  font-size: 0.85rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

/* ===== SKILLS ===== */
#skills { background: var(--bg-secondary); }
.skills-experience-row {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}
.skills-experience-row > .skills-grid {
  flex: 1.3;
  min-width: 0;
}
.skills-experience-row > .timeline {
  flex: 0.7;
  min-width: 260px;
  margin-top: 0;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.skill-category h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-category h3 i {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 3px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.skill-tag small {
  color: var(--text-muted);
  font-weight: 400;
}

/* ===== EXPERIENCE ===== */
.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-icon {
  position: absolute;
  left: -40px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.timeline-icon i {
  font-size: 0.7rem;
  color: var(--text-muted);
}
.timeline-content h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.timeline-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== AWARDS ===== */
#awards { background: var(--bg-secondary); }
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.award-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.award-card > i {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: block;
}
.award-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.award-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== FEATURED CAROUSEL ===== */
.featured-carousel {
  position: relative;
  margin-bottom: 2rem;
  padding: 0 44px;
}
.carousel-track-wrapper {
  overflow: hidden;
  border-radius: var(--radius);
}
.carousel-track {
  display: flex;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}
.carousel-slide {
  min-width: 100%;
  box-sizing: border-box;
  padding: 0 4px;
}
.carousel-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.carousel-card:hover {
  border-color: #444;
  box-shadow: 0 0 20px rgba(255,255,255,0.04);
}
.carousel-card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  object-fit: cover;
  flex-shrink: 0;
}
.carousel-card-icon.heatmap-icon-bg {
  background: #4444FE;
  padding: 6px;
}
.carousel-card-body {
  flex: 1;
  min-width: 0;
}
.carousel-card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.carousel-card-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.carousel-card-meta {
  display: flex;
  gap: 14px;
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.carousel-card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-60%);
  z-index: 2;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
  font-size: 0.8rem;
}
.carousel-arrow:hover {
  background: var(--border);
  border-color: #444;
}
.carousel-arrow-left { left: 0; }
.carousel-arrow-right { right: 0; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: background var(--transition);
  padding: 0;
}
.carousel-dot.active {
  background: var(--text-primary);
}

@media (max-width: 600px) {
  .featured-carousel { padding: 0 36px; }
  .carousel-card { flex-direction: column; text-align: center; padding: 20px; gap: 14px; }
  .carousel-card-meta { justify-content: center; }
}

/* ===== REPOSITORIES ===== */
.repo-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 1.5rem;
}
.repo-filters {
  display: flex;
  gap: 6px;
}
.repo-view-toggle {
  display: flex;
  gap: 4px;
  border-left: 1px solid var(--border);
  padding-left: 16px;
}
.view-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
}
.view-btn:hover, .view-btn.active {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}
.filter-btn {
  padding: 6px 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}
.repo-search {
  max-width: 360px;
  margin: 0 auto 2rem;
  position: relative;
}
.repo-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
}
.repo-search input {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition);
}
.repo-search input:focus {
  border-color: var(--text-muted);
}

.repo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.repo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.repo-card:hover {
  border-color: #444;
}
.repo-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.repo-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}
.repo-card-icon.heatmap-icon-bg,
.modal-icon.heatmap-icon-bg {
  background: #4444FE;
  padding: 4px;
  border-radius: var(--radius-sm);
}
.repo-card-icon-placeholder {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  flex-shrink: 0;
}
.repo-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}
.repo-card-fork {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 8px;
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 3px;
}
.repo-card-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  flex: 1;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.repo-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.repo-card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}
.lang-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

/* Expanded view */
.repo-grid-expanded {
  grid-template-columns: 1fr;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.repo-card-expanded .repo-card-desc {
  -webkit-line-clamp: unset;
}
.repo-card-preview {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  display: block;
}

/* ===== MODAL ===== */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal.active {
  display: flex;
  animation: fadeIn 0.15s ease;
}
.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 28px;
  position: relative;
  animation: slideUp 0.2s ease;
}
.modal-content::-webkit-scrollbar {
  display: none;
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover {
  color: var(--text-primary);
}
.modal-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.modal-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.modal-header h2 {
  font-size: 1.3rem;
  font-weight: 600;
}
.modal-language {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: 3px;
}
.modal-social-preview {
  width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  border: 1px solid var(--border);
  display: none;
}
.modal-social-preview.visible {
  display: block;
}
.modal-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 18px;
}
.modal-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.modal-stats span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.modal-stats i { color: var(--text-muted); }
.modal-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}
.modal-topic {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
}
.modal-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Modal Tabs */
.modal-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.modal-tabs::-webkit-scrollbar { display: none; }
.modal-tab {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: inherit;
}
.modal-tab:hover { color: var(--text-secondary); }
.modal-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}
.modal-tab-chevrons {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-shrink: 0;
}
.modal-chevron {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.7rem;
  transition: all var(--transition);
}
.modal-chevron:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}
.modal-tab-content {
  display: none;
}
.modal-tab-content.active {
  display: block;
}

/* README body */
.modal-readme-body {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
  overflow-wrap: break-word;
}

/* ===== GitHub-style Markdown Body ===== */
.markdown-body {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
  overflow-wrap: break-word;
  word-break: break-word;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  color: var(--text-primary);
  margin: 1.5em 0 0.5em;
  font-weight: 600;
  line-height: 1.25;
}
.markdown-body h1 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; margin-top: 0; }
.markdown-body h2 { font-size: 1.25rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; }
.markdown-body h3 { font-size: 1.05rem; }
.markdown-body h4 { font-size: 0.95rem; }
.markdown-body h5 { font-size: 0.88rem; }
.markdown-body h6 { font-size: 0.82rem; color: var(--text-muted); }
.markdown-body p {
  margin-bottom: 1em;
}
.markdown-body pre {
  background: #161b22;
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.82rem;
  margin-bottom: 1em;
  line-height: 1.5;
}
.markdown-body code {
  background: rgba(110,118,129,0.2);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.85em;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}
.markdown-body pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}
.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  display: inline-block;
}
.markdown-body a {
  color: #58a6ff;
  text-decoration: none;
}
.markdown-body a:hover {
  text-decoration: underline;
}
.markdown-body ul, .markdown-body ol {
  padding-left: 2em;
  margin-bottom: 1em;
}
.markdown-body li {
  margin-bottom: 0.3em;
}
.markdown-body li + li {
  margin-top: 0.25em;
}
.markdown-body li > ul,
.markdown-body li > ol {
  margin-top: 0.25em;
  margin-bottom: 0;
}
.markdown-body blockquote {
  border-left: 4px solid var(--border);
  padding: 0 1em;
  color: var(--text-muted);
  margin: 0 0 1em;
}
.markdown-body blockquote > :first-child { margin-top: 0; }
.markdown-body blockquote > :last-child { margin-bottom: 0; }
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em;
  font-size: 0.85rem;
  display: block;
  overflow-x: auto;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}
.markdown-body th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
}
.markdown-body tr:nth-child(even) {
  background: rgba(255,255,255,0.02);
}
.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5em 0;
}
.markdown-body dl {
  margin-bottom: 1em;
}
.markdown-body dt {
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1em;
}
.markdown-body dd {
  padding-left: 1em;
  margin-bottom: 0.5em;
}
/* Task list items */
.markdown-body .task-list-item {
  list-style: none;
  margin-left: -1.5em;
}
.markdown-body .task-list-item input[type="checkbox"] {
  margin-right: 0.4em;
  vertical-align: middle;
}
/* Inline HTML details/summary (common in GH READMEs) */
.markdown-body details {
  margin-bottom: 1em;
}
.markdown-body details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
}
/* Badge images (shields.io etc) */
.markdown-body p > a > img,
.markdown-body p > img {
  vertical-align: middle;
}
/* Emoji images from GitHub */
.markdown-body img.emoji,
.markdown-body img[alt*="emoji"] {
  height: 1.2em;
  width: 1.2em;
  vertical-align: text-bottom;
}
/* Alert/Note/Warning boxes (GitHub flavored) */
.markdown-body .markdown-alert {
  border-left: 4px solid var(--border);
  padding: 0.5em 1em;
  margin-bottom: 1em;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255,255,255,0.02);
}
.markdown-body .highlight pre, .markdown-body pre.highlight {
  background: #161b22;
}

/* Releases body */
.modal-releases-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.release-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
  background: var(--bg-card);
}
.release-item h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.release-item .release-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: block;
}
.release-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.release-item a {
  color: var(--text-primary);
  font-size: 0.82rem;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}
.release-item a:hover {
  border-color: var(--text-muted);
}

/* License body */
.modal-license-body {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.modal-license-body pre {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Modal languages detail */
.modal-languages-detail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.modal-lang-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.modal-lang-tag .lang-dot {
  width: 6px;
  height: 6px;
}

/* ===== COLLABORATIONS ===== */
.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.collab-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}
.collab-card:hover {
  border-color: #444;
}
.collab-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.collab-card-header i {
  font-size: 1.2rem;
  color: var(--text-muted);
}
.collab-card-header h3 { font-size: 1rem; }
.collab-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.collab-card .collab-people {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}
.collab-person {
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.collab-card .collab-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== STORE APPS ===== */
#store-apps { background: var(--bg-secondary); }
.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.store-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.store-card:hover {
  border-color: #444;
}
.store-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.store-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.store-card-icon-placeholder {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-muted);
}
.store-card-icon-placeholder.apple { color: var(--text-primary); }
.store-card-icon-placeholder.android { color: var(--text-secondary); }
.store-card-icon-placeholder.vscode { color: var(--text-secondary); }
.store-card h3 { font-size: 0.95rem; }
.store-card .store-badge {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 3px;
  display: inline-block;
  margin-bottom: 6px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.store-badge.apple,
.store-badge.android,
.store-badge.vscode {
  background: transparent;
  color: var(--text-muted);
}
.store-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  flex: 1;
  margin-bottom: 14px;
}
.store-card .btn {
  align-self: flex-start;
  font-size: 0.8rem;
  padding: 6px 14px;
}

/* ===== ACTIVITY ===== */
.contribution-graph {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 2rem;
  overflow: hidden;
}

/* Stats header */
.graph-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}
.graph-stat-group {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.graph-stat {
  display: flex;
  flex-direction: column;
}
.graph-stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
.graph-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.graph-period {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Heatmap calendar */
.heatmap-chart {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}
.heatmap-chart::-webkit-scrollbar { height: 4px; }
.heatmap-chart::-webkit-scrollbar-track { background: transparent; }
.heatmap-chart::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.heatmap-chart svg {
  display: block;
  min-width: 720px;
  margin: 0 auto;
}
.heatmap-chart rect.heatmap-cell {
  rx: 2;
  ry: 2;
  stroke: rgba(255,255,255,0.04);
  stroke-width: 1;
  cursor: pointer;
  transition: stroke 0.15s ease;
}
.heatmap-chart rect.heatmap-cell:hover {
  stroke: rgba(255,255,255,0.25);
  stroke-width: 1.5;
}

/* Tooltip */
.heatmap-tooltip {
  position: fixed;
  z-index: 100000;
  pointer-events: none;
  background: rgba(20,20,20,0.95);
  border: 1px solid #333;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.72rem;
  color: var(--text-primary);
  white-space: nowrap;
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.heatmap-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}
.heatmap-tooltip strong {
  color: #fff;
}
.heatmap-tooltip .tooltip-date {
  color: var(--text-muted);
  margin-left: 4px;
}

/* Legend */
.heatmap-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
}
.heatmap-legend-label {
  margin: 0 3px;
}
.heatmap-legend-cell {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}
.heatmap-link {
  font-size: 0.72rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.heatmap-link:hover {
  color: var(--text-primary);
  opacity: 1;
}

.activity-show-more {
  list-style: none;
  margin-top: 4px;
}

.recent-activity h3 {
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 600;
}
.activity-feed {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.activity-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
}
.activity-item i {
  color: var(--text-muted);
  font-size: 0.9rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.activity-item .activity-text { flex: 1; color: var(--text-secondary); }
.activity-item .activity-text strong { color: var(--text-primary); }
.activity-item .activity-text a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
}
.activity-item .activity-text a:hover {
  border-color: var(--text-muted);
}
.activity-item .activity-time {
  color: var(--text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

/* ===== AVATAR ORBIT WRAPPER ===== */
.avatar-orbit-wrapper {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.avatar-orbit-wrapper .hero-avatar {
  margin-bottom: 0;
  position: relative;
  z-index: 1;
}

/* Social buttons — shared base */
.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.85);
  color: var(--text-muted);
  transition: color 0.3s, border-color 0.3s, background 0.3s, transform 0.3s, box-shadow 0.3s;
  text-decoration: none;
}
.social-btn:hover {
  color: var(--text-primary);
  border-color: #555;
  background: rgba(255,255,255,0.1);
  transform: scale(1.15);
  box-shadow: 0 0 12px rgba(255,255,255,0.1);
  opacity: 1;
}
.social-btn svg {
  width: 18px;
  height: 18px;
}

/* ORBIT MODE — JS-driven 3D ring (edge-on ellipse) */
.hero-socials.orbit-mode {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hero-socials.orbit-mode .social-btn {
  position: absolute;
  pointer-events: auto;
  will-change: transform, opacity;
  transition: none;
}

/* DOCKED MODE — fixed vertical column below nav */
.hero-socials.docked-mode {
  position: fixed;
  top: 64px;
  right: 20px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-socials.docked-mode .social-btn {
  position: static;
  transform: none !important;
  opacity: 1 !important;
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== LOADING ===== */
.loading-spinner {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 0;
  font-size: 0.9rem;
  grid-column: 1 / -1;
}
.loading-spinner i { margin-right: 8px; }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px;
  grid-column: 1 / -1;
}
.empty-state i {
  font-size: 1.5rem;
  margin-bottom: 12px;
  display: block;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }

  #hero h1 { font-size: 1.75rem; }
  .hero-avatar { width: 90px; height: 90px; }
  .avatar-orbit-wrapper { width: 160px; height: 160px; margin-bottom: 0.3rem; }
  .hero-stats { gap: 24px; }
  .skills-experience-row { flex-direction: column; gap: 1.5rem; }
  .skills-experience-row > .timeline { min-width: 0; }

  .about-grid { grid-template-columns: 1fr; }
  .repo-grid, .collab-grid, .store-grid {
    grid-template-columns: 1fr;
  }

  .modal-content { padding: 18px; }
  .modal-header h2 { font-size: 1.1rem; }
}

@media (max-width: 480px) {
  .hero-meta { flex-direction: column; gap: 8px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #222; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #333; }