:root {
      --primary: #6366f1;
      --primary-dark: #4f46e5;
      --secondary: #10b981;
      --accent: #f59e0b;
      --bg: #fafbfc;
      --bg-secondary: #f3f4f6;
      --text: #111827;
      --text-light: #6b7280;
      --card-bg: #ffffff;
      --border: #e5e7eb;
      --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
      --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    }
    .dark {
      --primary: #818cf8;
      --primary-dark: #6366f1;
      --secondary: #34d399;
      --accent: #fbbf24;
      --bg: #0a0e1a;
      --bg-secondary: #111827;
      --text: #f9fafb;
      --text-light: #9ca3af;
      --card-bg: #1f2937;
      --border: #374151;
      --shadow: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
      --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.5), 0 10px 10px -5px rgba(0,0,0,0.3);
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: var(--bg);
      color: var(--text);
      transition: background 0.3s ease, color 0.3s ease;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    header {
      position: fixed;
      top: 0; left: 0; right: 0;
      padding: 1rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      backdrop-filter: blur(16px) saturate(180%);
      background: rgba(255,255,255,0.92);
      border-bottom: 1px solid var(--border);
      z-index: 1000;
      box-shadow: 0 1px 3px 0 rgba(0,0,0,0.05);
    }
    .dark header { background: rgba(31,41,55,0.95); }
    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.4rem;
      color: var(--text);
      user-select: none;
    }
    .logo img {
      width: 44px; height: 44px;
      border-radius: 50%;
      border: 2px solid var(--primary);
      transition: all 0.3s ease;
      animation: pulse 3s ease-in-out infinite;
    }
    .logo:hover img {
      animation: none;
      transform: scale(1.1);
      box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    }
    @keyframes pulse {
      0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
      50% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); }
    }
    .nav-icons { display: flex; gap: 1rem; align-items: center; }
    .icon-btn {
      background: var(--card-bg);
      border: 1px solid var(--border);
      width: 44px; height: 44px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      transition: all 0.2s ease;
      color: var(--text);
      cursor: pointer;
      position: relative;
    }
    .icon-btn:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow);
      background: var(--primary);
      color: white;
      border-color: var(--primary);
    }
    .icon-btn[data-tooltip]::after {
      content: attr(data-tooltip);
      position: absolute;
      bottom: -32px;
      left: 50%;
      transform: translateX(-50%);
      background: #1f2937;
      color: white;
      padding: 6px 10px;
      border-radius: 8px;
      font-size: 0.8rem;
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s ease;
      z-index: 10;
    }
    .icon-btn[data-tooltip]::before {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 50%;
      transform: translateX(-50%);
      border: 6px solid transparent;
      border-bottom-color: #1f2937;
      opacity: 0;
      transition: opacity 0.2s ease;
    }
    .icon-btn:hover[data-tooltip]::after,
    .icon-btn:hover[data-tooltip]::before { opacity: 1; }
    .theme-toggle {
      width: 64px; height: 36px;
      background: var(--card-bg);
      border: 2px solid var(--border);
      border-radius: 20px;
      position: relative;
      transition: all 0.3s ease;
      cursor: pointer;
    }
    .theme-toggle:hover { border-color: var(--primary); }
    .theme-toggle::before {
      content: ''; position: absolute;
      top: 3px; left: 4px;
      width: 26px; height: 26px;
      background: var(--primary);
      border-radius: 50%;
      transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }
    .theme-toggle.active::before { transform: translateX(28px); background: var(--secondary); }
    .container { max-width: 1280px; margin: 0 auto; padding: 100px 2rem 0.5rem; }
    .hero-section {
      text-align: center;
      padding: 1rem 0 2rem;
      background: linear-gradient(135deg, var(--bg) 0%, var(--bg-secondary) 100%);
      border-radius: 24px;
      margin-bottom: 1rem;
    }
    .hero-title {
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 1rem;
      background-size: 200% 200%;
      min-height: 80px;
      display: flex;
      align-items: center;
      justify-content: center;
      animation: gradientShift 6s ease infinite;
    }
    @keyframes gradientShift { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
    .subtitle {
      color: var(--text-light);
      font-size: clamp(1rem, 2vw, 1.25rem);
      font-weight: 500;
      max-width: 700px;
      margin: 0 auto;
      animation: fadeIn 1.2s ease-out 0.3s backwards;
    }
    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.5rem;
      margin: 3rem 0;
    }
    .stat-card {
      background: var(--card-bg);
      padding: 2rem 1.5rem;
      border-radius: 16px;
      text-align: center;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .stat-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      transform: scaleX(0);
      transition: transform 0.3s ease;
    }
    .stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .stat-card:hover::before { transform: scaleX(1); }
    .stat-card h3 {
      font-size: 2.5rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 0.5rem;
    }
    .stat-card p { color: var(--text-light); font-size: 0.95rem; font-weight: 500; }
    .search-box {
      max-width: 600px;
      margin: 2rem auto;
      position: relative;
    }
    .search-box input {
      width: 100%;
      padding: 16px 20px 16px 50px;
      border: 2px solid var(--border);
      border-radius: 16px;
      background: var(--card-bg);
      font-size: 1rem;
      color: var(--text);
      transition: all 0.3s ease;
      font-family: inherit;
    }
    .search-box input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    }
    .search-box i {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
    }
    .section-header { text-align: center; margin: 2rem 0 1rem; }
    .section-title { font-size: 2rem; font-weight: 800; color: var(--text); margin-bottom: 0.5rem; }
    .section-subtitle { color: var(--text-light); font-size: 1rem; }
    .repos-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
      gap: 1.5rem;
      margin-top: 2rem;
    }
    .repo {
      background: rgba(99, 102, 241, 0.1);
      border-radius: 16px;
      padding: 1.75rem;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      overflow: hidden;
    }
    .repo:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }
    .repo::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.3s ease;
    }
    .repo:hover::before { transform: scaleX(1); }
    .repo h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text);
    }
    .repo h3 a {
      color: inherit;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
      transition: color 0.2s ease;
    }
    .repo h3 a:hover { color: var(--primary); }
    .repo p {
      color: var(--text-light);
      font-size: 0.9rem;
      line-height: 1.6;
      margin-bottom: 1rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .repo-meta {
      display: flex;
      gap: 1rem;
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }
    .repo-meta span { display: flex; align-items: center; gap: 4px; }
    .copy-btn {
      position: absolute;
      top: 12px;
      right: 12px;
      background: var(--primary);
      color: white;
      border: none;
      width: 36px; height: 36px;
      border-radius: 10px;
      opacity: 0;
      transition: all 0.3s ease;
      display: grid;
      place-items: center;
      cursor: pointer;
    }
    .copy-btn:hover { background: var(--primary-dark); transform: scale(1.1); }
    .repo:hover .copy-btn { opacity: 1; }
    .pagination {
      display: flex;
      justify-content: center;
      gap: 0.5rem;
      margin: 1rem 0;
      flex-wrap: wrap;
    }
    .page-btn {
      padding: 10px 16px;
      border: 1px solid var(--border);
      background: var(--card-bg);
      border-radius: 10px;
      transition: all 0.2s ease;
      color: var(--text);
      font-weight: 600;
      min-width: 44px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin: 0 2px;
    }
    .page-btn.active {
      background: var(--primary);
      color: white;
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
    }
    .page-btn:hover:not(.active) {
      background: var(--bg-secondary);
      border-color: var(--primary);
      transform: translateY(-1px);
    }
    .page-btn.nav-btn {
      min-width: 44px;
      width: 44px;
      padding: 10px;
    }
    .pagination-container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin: 2rem 0;
      flex-wrap: wrap;
    }
    .ellipsis {
      padding: 10px 8px;
      color: var(--text-light);
      font-weight: 500;
      user-select: none;
    }
    .blog-meta-item.category {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      color: var(--text-light);
      font-size: 0.9rem;
    }
    .blog-meta-item.category i {
      color: var(--primary);
      width: 16px;
      height: 16px;
    }
    .activity-feed, .blog-posts {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 1.5rem;
      margin-top: 1rem;
    }
    .activity-item, .blog-item {
      background: var(--card-bg);
      border-radius: 16px;
      padding: 1.5rem;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: all 0.3s ease;
    }
    .activity-item:hover, .blog-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }
    .activity-item strong { color: var(--primary); font-weight: 700; margin-bottom: 0.5rem; display: block; }
    .blog-item h3 { color: var(--text); font-weight: 700; font-size: 1.1rem; line-height: 1.4; margin-bottom: 0.5rem; }
    .blog-item a { color: inherit; text-decoration: none; }
    .blog-item a:hover h3 { color: var(--primary); }
    .blog-item p {
      color: var(--text-light);
      font-size: 0.9rem;
      margin: 0.5rem 0;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
   
    /* Enhanced Blog Meta Section */
    .blog-meta {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      font-size: 0.85rem;
      color: var(--text-light);
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid var(--border);
      flex-wrap: wrap;
    }
    .blog-meta-item {
      display: flex;
      align-items: center;
      gap: 0.4rem;
      font-weight: 500;
    }
    .blog-meta-item.author {
      background: rgba(99, 102, 241, 0.1);
      padding: 4px 8px;
      border-radius: 6px;
      color: var(--primary);
      border: 1px solid rgba(99, 102, 241, 0.2);
    }
    .blog-image {
      width: 100%;
      height: 180px;
      object-fit: cover;
      border-radius: 12px;
      margin-bottom: 1rem;
      transition: transform 0.3s ease;
    }
    .blog-image:hover {
      transform: scale(1.02);
    }
    .loading {
      text-align: center;
      padding: 3rem;
      color: var(--text-light);
      font-size: 1.1rem;
    }
    .loading::after {
      content: '...';
      animation: dots 1.5s steps(4, end) infinite;
    }
    @keyframes dots {
      0%, 20% { content: '.'; }
      40% { content: '..'; }
      60%, 100% { content: '...'; }
    }
    .modal {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.75);
      backdrop-filter: blur(8px);
      z-index: 2000;
      align-items: center;
      justify-content: center;
      padding: 2rem;
    }
    .modal.active { display: flex; }
    .modal-content {
      background: var(--card-bg);
      padding: 2.5rem;
      border-radius: 20px;
      max-width: 500px;
      width: 100%;
      position: relative;
      animation: modalSlide 0.3s ease;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
    }
    @keyframes modalSlide { from { transform: translateY(-20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
    .modal-content h2 { font-size: 1.75rem; font-weight: 800; margin-bottom: 1.5rem; color: var(--text); }
    .close-modal {
      position: absolute;
      top: 15px; right: 15px;
      background: var(--bg-secondary);
      border: none;
      width: 36px; height: 36px;
      border-radius: 10px;
      font-size: 1.5rem;
      color: var(--text);
      display: grid;
      place-items: center;
      transition: all 0.2s ease;
      cursor: pointer;
    }
    .close-modal:hover { background: var(--primary); color: white; }
    .modal-content input,
    .modal-content textarea {
      width: 100%;
      padding: 12px 16px;
      margin: 10px 0;
      border-radius: 12px;
      border: 2px solid var(--border);
      background: var(--bg);
      color: var(--text);
      font-family: inherit;
      font-size: 0.95rem;
      transition: all 0.3s ease;
    }
    .modal-content input:focus,
    .modal-content textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    }
    .modal-content button[type="submit"] {
      background: var(--primary);
      color: white;
      padding: 12px 24px;
      border: none;
      border-radius: 12px;
      font-weight: 600;
      font-size: 1rem;
      width: 100%;
      margin-top: 10px;
      transition: all 0.2s ease;
      cursor: pointer;
    }
    .modal-content button[type="submit"]:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    footer {
      text-align: center;
      padding: 1.5rem 1rem;
      color: var(--text-light);
      border-top: 1px solid var(--border);
      margin-top: 1rem;
      font-size: 0.95rem;
    }
   
    /* Additional Cool Features Styles */
    .feature-highlight {
      position: relative;
      overflow: hidden;
    }
    .feature-highlight::after {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
      transition: left 0.5s ease;
    }
    .feature-highlight:hover::after {
      left: 100%;
    }
   
    .stats-counter {
      font-variant-numeric: tabular-nums;
    }
   
    .skill-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 1rem;
    }
    .skill-tag {
      background: var(--primary);
      color: white;
      padding: 0.25rem 0.75rem;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 500;
    }
    /* Enhanced Repo Cards */
    .repo {
      position: relative;
      overflow: hidden;
    }
    .repo::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: linear-gradient(135deg, transparent 0%, rgba(99, 102, 241, 0.05) 50%, transparent 100%);
      opacity: 0;
      transition: opacity 0.3s ease;
      pointer-events: none;
    }
    .repo:hover::after { opacity: 1; }
   
    .repo-language {
      position: absolute;
      bottom: 15px;
      right: 15px;
      background: var(--primary);
      color: white;
      padding: 4px 8px;
      border-radius: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
      z-index: 2;
    }
   
    .repo-stats {
      display: flex;
      gap: 1rem;
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid var(--border);
    }
    .repo-stat {
      display: flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }
    .repo-stat i {
      width: 16px;
      height: 16px;
      color: var(--primary);
    }
    /* Notification System */
    .notification {
      position: fixed;
      top: 20px;
      right: 20px;
      background: var(--primary);
      color: white;
      padding: 1rem 1.5rem;
      border-radius: 12px;
      box-shadow: var(--shadow-lg);
      z-index: 10000;
      transform: translateX(100%);
      transition: transform 0.3s ease;
      max-width: 300px;
      font-weight: 500;
    }
    .notification.show {
      transform: translateX(0);
    }
    .notification.success { background: var(--secondary); }
    .notification.error { background: #ef4444; }
    /* Skills Radar Chart */
    .skills-section {
      margin: 2rem 0;
      padding: 2rem;
      background: var(--card-bg);
      border-radius: 20px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.5rem;
      margin-top: 1.5rem;
    }
    .skill-item {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1rem;
      background: var(--bg);
      border-radius: 12px;
      border: 1px solid var(--border);
      transition: all 0.3s ease;
    }
    .skill-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .skill-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: white;
    }
    .skill-info h4 {
      font-weight: 600;
      color: var(--text);
      margin-bottom: 0.25rem;
    }
    .skill-level {
      width: 100%;
      height: 6px;
      background: var(--bg-secondary);
      border-radius: 3px;
      overflow: hidden;
      margin-top: 0.5rem;
    }
    .skill-progress {
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 3px;
      transition: width 1s ease;
    }
    /* Project Timeline */
    .timeline-section {
      margin: 2rem 0;
      padding: 2rem;
      background: var(--card-bg);
      border-radius: 20px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }
    .timeline {
      position: relative;
      max-width: 1000px;
      margin: 0 auto;
    }
    .timeline::after {
      content: '';
      position: absolute;
      width: 4px;
      background: linear-gradient(180deg, var(--primary), var(--secondary));
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -2px;
      border-radius: 2px;
    }
    .timeline-item {
      padding: 10px 40px;
      position: relative;
      background-color: inherit;
      width: 50%;
    }
    .timeline-item::after {
      content: '';
      position: absolute;
      width: 20px;
      height: 20px;
      right: -10px;
      background-color: var(--card-bg);
      border: 3px solid var(--primary);
      top: 15px;
      border-radius: 50%;
      z-index: 1;
    }
    .timeline-item:nth-child(even) {
      left: 50%;
    }
    .timeline-item:nth-child(even)::after {
      left: -10px;
    }
    .timeline-content {
      padding: 1.5rem;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 12px;
      position: relative;
    }
    .timeline-date {
      color: var(--primary);
      font-weight: 600;
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
    }
    .timeline-title {
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.5rem;
    }
    .timeline-description {
      color: var(--text-light);
      font-size: 0.9rem;
    }
    /* Achievement Badges */
    .achievements-section {
      margin: 2rem 0;
      padding: 2rem;
      background: var(--card-bg);
      border-radius: 20px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }
    .achievements-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.5rem;
      margin-top: 1.5rem;
    }
    .achievement-badge {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1.5rem;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 16px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .achievement-badge::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
      transition: left 0.5s ease;
    }
    .achievement-badge:hover::before {
      left: 100%;
    }
    .achievement-badge:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .badge-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: white;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
    }
    .badge-info h4 {
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.25rem;
    }
    .badge-info p {
      color: var(--text-light);
      font-size: 0.85rem;
    }
    .badge-count {
      margin-left: auto;
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
    }
    /* Enhanced Search Filters */
    .search-filters {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin: 1rem 0;
      justify-content: center;
    }
    .filter-btn {
      padding: 0.5rem 1rem;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 20px;
      color: var(--text);
      font-size: 0.85rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .filter-btn:hover, .filter-btn.active {
      background: var(--primary);
      color: white;
      border-color: var(--primary);
    }
    /* Blog Categories */
    .blog-filters {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin: 1rem 0;
      justify-content: center;
    }
    .category-btn {
      padding: 0.5rem 1rem;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 20px;
      color: var(--text);
      font-size: 0.85rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .category-btn:hover, .category-btn.active {
      background: var(--secondary);
      color: white;
      border-color: var(--secondary);
    }
    /* AI Chat Integration */
    .ai-chat {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
    }
    .chat-toggle {
      width: 60px;
      height: 60px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border: none;
      border-radius: 50%;
      color: white;
      font-size: 1.5rem;
      cursor: pointer;
      box-shadow: var(--shadow-lg);
      transition: all 0.3s ease;
    }
    .chat-toggle:hover {
      transform: scale(1.1);
    }
    .chat-window {
      position: absolute;
      bottom: 80px;
      right: 0;
      width: 350px;
      height: 400px;
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: 16px;
      box-shadow: var(--shadow-lg);
      display: none;
      flex-direction: column;
      overflow: hidden;
    }
    .chat-window.active {
      display: flex;
    }
    .chat-header {
      padding: 1rem;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: white;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .chat-messages {
      flex: 1;
      padding: 1rem;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .chat-message {
      max-width: 80%;
      padding: 0.75rem 1rem;
      border-radius: 12px;
      font-size: 0.9rem;
      line-height: 1.4;
    }
    .chat-message.bot {
      background: var(--bg);
      align-self: flex-start;
    }
    .chat-message.user {
      background: var(--primary);
      color: white;
      align-self: flex-end;
    }
    .chat-input {
      padding: 1rem;
      border-top: 1px solid var(--border);
      display: flex;
      gap: 0.5rem;
    }
    .chat-input input {
      flex: 1;
      padding: 0.75rem;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--bg);
      color: var(--text);
      font-size: 0.9rem;
    }
    .chat-input button {
      padding: 0.75rem 1rem;
      background: var(--primary);
      border: none;
      border-radius: 8px;
      color: white;
      cursor: pointer;
      font-weight: 600;
    }
   
    @media (max-width: 768px) {
      header { padding: 1rem; }
      .container { padding: 90px 1rem 2rem; }
      .logo { font-size: 1.2rem; }
      .logo img { width: 36px; height: 36px; }
      .hero-section { padding: 2rem 1rem 3rem; margin-bottom: 2rem; }
      .nav-icons { gap: 0.5rem; }
      .icon-btn { width: 40px; height: 40px; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
      .repos-grid, .activity-feed, .blog-posts { grid-template-columns: 1fr; }
      .blog-meta { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
      .timeline::after { left: 20px; }
      .timeline-item { width: 100%; padding-left: 70px; padding-right: 25px; }
      .timeline-item::before { left: 10px; border: medium solid var(--border); border-width: 10px 10px 10px 0; border-color: transparent var(--border) transparent transparent; }
      .timeline-item:nth-child(even) { left: 0%; }
      .timeline-item:nth-child(even)::before { border-color: transparent var(--border) transparent transparent; }
      .chat-window { width: calc(100vw - 40px); right: 0; }
      .timeline-item::after { left: 10px !important; }
      .timeline-item:nth-child(even)::after { left: 10px !important; }
      .skills-grid, .achievements-grid { grid-template-columns: 1fr; }
      .search-filters { flex-direction: column; align-items: center; }
      .blog-filters { flex-direction: column; align-items: center; }
    }