:root{--primary-color:#1e40af;--primary-dark:#1e3a8a;--primary-light:#3b82f6;--secondary-color:#64748b;--accent-color:#f59e0b;--success-color:#10b981;--danger-color:#ef4444;--background:#ffffff;--surface:#f8fafc;--surface-dark:#f1f5f9;--border:#e2e8f0;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);--shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1),0 2px 4px -2px rgb(0 0 0 / 0.1);--shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1),0 4px 6px -4px rgb(0 0 0 / 0.1);--shadow-xl:0 20px 25px -5px rgb(0 0 0 / 0.1),0 8px 10px -6px rgb(0 0 0 / 0.1);--gradient-primary:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 100%);--gradient-surface:linear-gradient(135deg,var(--surface) 0%,var(--background) 100%);--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--text-5xl:3rem;--text-6xl:3.75rem;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--transition-fast:150ms ease-out;--transition-normal:300ms ease-out;--transition-slow:500ms ease-out;--container-padding:clamp(1rem,5vw,2rem);--container-max-width:1200px;--will-change-transform:will-change:transform;--will-change-opacity:will-change:opacity;--contain-layout:contain:layout;--contain-style:contain:style;--contain-paint:contain:paint;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;text-size-adjust:100%;-webkit-text-size-adjust:100%;font-display:swap;contain:layout style;}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;line-height:1.7;color:var(--text-primary);background:var(--background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:'kern' 1,'liga' 1,'calt' 1;overflow-x:hidden;contain:layout style;will-change:scroll-position;}.container{width:100%;max-width:var(--container-max-width);margin:0 auto;padding:0 var(--container-padding);contain:layout;}header{text-align:center;padding:var(--space-20) 0 var(--space-16);background:var(--gradient-surface);border-bottom:1px solid var(--border);position:relative;overflow:hidden;contain:layout style;}header::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgb(30 64 175 / 0.02) 0%,rgb(59 130 246 / 0.02) 100%);pointer-events:none;}.profile-image{width:200px;height:200px;border-radius:50%;object-fit:cover;margin:0 auto var(--space-10);border:6px solid var(--background);box-shadow:var(--shadow-xl);transition:transform var(--transition-normal),box-shadow var(--transition-normal);position:relative;z-index:1;will-change:transform;aspect-ratio:1;contain:layout style;transform:translateZ(0);backface-visibility:hidden;}.profile-image:hover{transform:scale(1.05) translateZ(0);box-shadow:0 25px 50px -12px rgb(0 0 0 / 0.25);}h1{font-size:clamp(2.5rem,8vw,var(--text-6xl));font-weight:800;color:var(--text-primary);margin-bottom:var(--space-2);letter-spacing:-0.025em;position:relative;z-index:1;line-height:1.1;contain:layout;}.title{font-size:clamp(1.25rem,4vw,var(--text-2xl));color:var(--primary-color);font-weight:600;margin-bottom:var(--space-3);position:relative;z-index:1;contain:layout;}.subtitle{font-size:clamp(1rem,3vw,var(--text-lg));color:var(--text-secondary);font-weight:400;margin-bottom:var(--space-10);max-width:600px;margin-left:auto;margin-right:auto;line-height:1.6;position:relative;z-index:1;contain:layout;}.social-links{display:flex;justify-content:center;gap:var(--space-3);flex-wrap:nowrap;position:relative;z-index:1;contain:layout;overflow-x:auto;padding:var(--space-2) 0;scrollbar-width:thin;scrollbar-color:var(--border) transparent;will-change:scroll-position;}.social-links::-webkit-scrollbar{height:4px;}.social-links::-webkit-scrollbar-track{background:transparent;}.social-links::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}.social-links .btn{font-size:var(--text-sm) !important;padding:var(--space-3) var(--space-4) !important;min-height:44px !important;white-space:nowrap;flex-shrink:0;}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-4) var(--space-6);background:var(--gradient-primary);color:white;text-decoration:none;border-radius:12px;font-weight:600;font-size:var(--text-base);transition:all var(--transition-normal);box-shadow:var(--shadow-sm);border:none;cursor:pointer;position:relative;overflow:hidden;will-change:transform;font-family:inherit;line-height:1;contain:layout style;}.btn::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgb(255 255 255 / 0.2),transparent);transform:translateX(-100%);transition:transform var(--transition-slow);}.btn:hover::before{transform:translateX(100%);}.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg);}.btn:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px;}.btn i{font-size:var(--text-lg);}main{padding:var(--space-16) 0;contain:layout;}section{margin-bottom:var(--space-20);contain:layout;}h2{font-size:clamp(2rem,6vw,var(--text-5xl));font-weight:700;color:var(--text-primary);margin-bottom:var(--space-8);letter-spacing:-0.025em;position:relative;line-height:1.2;contain:layout;}h2::after{content:'';position:absolute;bottom:-var(--space-2);left:0;width:60px;height:4px;background:var(--gradient-primary);border-radius:2px;}h3{font-size:clamp(1.5rem,4vw,var(--text-3xl));font-weight:600;color:var(--text-primary);margin-bottom:var(--space-5);letter-spacing:-0.025em;line-height:1.3;contain:layout;}h4{font-size:clamp(1.125rem,3vw,var(--text-xl));font-weight:600;color:var(--text-primary);margin-bottom:var(--space-4);line-height:1.4;contain:layout;}p{font-size:var(--text-lg);color:var(--text-secondary);margin-bottom:var(--space-6);line-height:1.7;contain:layout;}ul{list-style:none;margin-bottom:var(--space-6);contain:layout;}li{position:relative;padding-left:var(--space-6);margin-bottom:var(--space-3);color:var(--text-secondary);line-height:1.6;contain:layout;}li::before{content:'';position:absolute;left:0;top:0.75rem;width:6px;height:6px;background:var(--primary-color);border-radius:50%;}.nav-tabs{display:flex;justify-content:center;gap:var(--space-2);margin:var(--space-8) 0;flex-wrap:nowrap;overflow-x:auto;padding:var(--space-2) 0;contain:layout style;scrollbar-width:thin;scrollbar-color:var(--border) transparent;}.nav-tabs::-webkit-scrollbar{height:4px;}.nav-tabs::-webkit-scrollbar-track{background:transparent;}.nav-tabs::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}.nav-tab{padding:var(--space-2) var(--space-4);background:var(--surface);color:var(--text-secondary);text-decoration:none;border-radius:8px;font-weight:500;transition:background-color var(--transition-fast),color var(--transition-fast),transform var(--transition-fast);border:1px solid var(--border);white-space:nowrap;font-size:var(--text-sm);contain:layout style;}.nav-tab:hover{background:var(--surface-dark);color:var(--text-primary);transform:translateY(-1px);}.nav-tab.active{background:var(--primary-color);color:white;border-color:var(--primary-color);}.nav-tab:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px;}.card{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem;transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;box-shadow:var(--shadow-sm);}.card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.card:hover::before{transform:scaleX(1);}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}a{color:var(--primary-color);text-decoration:none;transition:color 0.3s ease;}a:hover{color:var(--primary-dark);}.contact-info{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-top:2rem;contain:layout;box-shadow:var(--shadow-sm);}.contact-info::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(30,64,175,0.02) 0%,rgba(59,130,246,0.02) 100%);border-radius:12px;pointer-events:none;}.related-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:2rem;contain:layout;}.related-links .btn{justify-content:center;text-align:center;min-height:60px;}footer{text-align:center;padding:3rem 0;background:var(--surface);border-top:1px solid var(--border);color:var(--text-muted);contain:layout;}.back-link{display:inline-flex;align-items:center;gap:0.5rem;padding:0.75rem 1.5rem;background:var(--surface);color:var(--text-secondary);text-decoration:none;border-radius:8px;font-weight:500;transition:all 0.3s ease;border:1px solid var(--border);margin-bottom:2rem;contain:layout;}.back-link:hover{background:var(--surface-dark);color:var(--text-primary);transform:translateY(-1px);}.about-section{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:3rem;contain:layout;box-shadow:var(--shadow-sm);}.about-section h3{color:var(--primary-color);margin-bottom:1rem;font-size:1.5rem;}.about-section p{margin-bottom:1rem;line-height:1.7;}.about-section p:last-child{margin-bottom:0;}.year-section{margin-bottom:4rem;contain:layout;}.year-section h2{color:var(--primary-color);font-size:2rem;margin-bottom:1.5rem;border-bottom:2px solid var(--border);padding-bottom:0.5rem;contain:layout;}.year-section h2::after{display:none;}.experience-item{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem;transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;box-shadow:var(--shadow-sm);}.experience-item::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;border-radius:12px 12px 0 0;}.experience-item:hover::before{transform:scaleX(1);}.experience-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--primary-color);background:var(--background);}.experience-title{font-weight:800;color:var(--text-primary);margin-bottom:0.5rem;font-size:1.25rem;line-height:1.3;}.experience-company{color:var(--primary-dark);font-weight:700;font-size:1.125rem;margin-bottom:0.25rem;}.experience-date{color:var(--text-secondary);font-size:0.875rem;font-weight:600;}.blog-post{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:1.5rem;margin-bottom:1.5rem;transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;box-shadow:var(--shadow-sm);}.blog-post::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.blog-post:hover::before{transform:scaleX(1);}.blog-post:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}.blog-post a{color:var(--text-primary);text-decoration:none;font-weight:600;font-size:1.125rem;display:block;margin-bottom:0.5rem;}.blog-post a:hover{color:var(--primary-color);}.blog-post .date{color:var(--text-muted);font-size:0.875rem;font-weight:500;}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem;contain:layout;}.blog-card{background:var(--background);border:1px solid var(--border);border-radius:12px;padding:2rem;transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;box-shadow:var(--shadow-sm);}.blog-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.blog-card:hover::before{transform:scaleX(1);}.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}.blog-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem;contain:layout;}.blog-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:white;background:var(--gradient-primary);contain:layout;}.blog-title{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0;contain:layout;}.blog-description{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6;contain:layout;}.blog-stats{display:flex;gap:1rem;margin-bottom:1.5rem;font-size:0.875rem;color:var(--text-muted);contain:layout;}.blog-stat{display:flex;align-items:center;gap:0.5rem;contain:layout;}.blog-stat i{color:var(--primary-color);contain:layout;}.map-container{position:relative;margin:3rem 0;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-lg);contain:layout;}#map{width:100%;height:500px;border-radius:12px;contain:layout;}.legend{position:absolute;top:20px;right:20px;background:var(--background);padding:1rem;border-radius:8px;box-shadow:var(--shadow-md);border:1px solid var(--border);contain:layout;}.legend-item{display:flex;align-items:center;gap:0.5rem;margin-bottom:0.5rem;font-size:0.875rem;color:var(--text-secondary);contain:layout;}.legend-item:last-child{margin-bottom:0;}.legend-dot{width:12px;height:12px;border-radius:50%;border:2px solid white;box-shadow:0 1px 4px rgba(0,0,0,0.2);contain:layout;}.legend-dot.americas{background:#e74c3c;}.legend-dot.asia-pacific{background:#f39c12;}.legend-dot.africa{background:#9b59b6;}.legend-dot.emea{background:#27ae60;}.speaking-event{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2rem;margin-bottom:2rem;transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;}.speaking-event::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.speaking-event:hover::before{transform:scaleX(1);}.speaking-event:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}.speaking-event.keynote::before{background:linear-gradient(135deg,#f39c12 0%,#e67e22 100%);}.speaking-event.workshop::before{background:linear-gradient(135deg,#9b59b6 0%,#8e44ad 100%);}.speaking-event h3{color:var(--text-primary);margin-bottom:0.75rem;font-size:1.25rem;font-weight:600;contain:layout;}.event-details{color:var(--primary-color);font-weight:600;margin-bottom:1rem;font-size:1rem;contain:layout;}.description{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6;contain:layout;}.tags{display:flex;flex-wrap:wrap;gap:0.5rem;contain:layout;}.tag{background:var(--surface-dark);color:var(--text-secondary);padding:0.25rem 0.75rem;border-radius:20px;font-size:0.75rem;font-weight:500;border:1px solid var(--border);transition:all 0.3s ease;contain:layout;}.tag:hover{background:var(--primary-color);color:white;border-color:var(--primary-color);}.info-window{padding:0.5rem;max-width:200px;contain:layout;}.info-window h3{margin:0 0 0.5rem 0;color:var(--text-primary);font-size:1rem;font-weight:600;contain:layout;}.info-window p{margin:0.25rem 0;color:var(--text-secondary);font-size:0.875rem;contain:layout;}.btn:focus,.nav-tab:focus,a:focus{outline:2px solid var(--primary-color);outline-offset:2px;border-radius:4px;}.skip-link{position:absolute;top:-40px;left:6px;background:var(--primary-color);color:white;padding:8px;text-decoration:none;border-radius:4px;z-index:1000;transition:top 0.3s ease;}.skip-link:focus{top:6px;}.keyboard-navigation *:focus{outline:2px solid var(--primary-color);outline-offset:2px;}.btn:focus,.nav-tab:focus,.speaking-event:focus-within,.card:focus-within,.computer-item:focus-within,.book-item:focus-within,.repo-card:focus-within{outline:2px solid var(--primary-color);outline-offset:2px;box-shadow:0 0 0 4px rgba(30,64,175,0.1);}@media (max-width:768px){.container{padding:0 1rem;}h1{font-size:2.5rem;}.title{font-size:1.25rem;}.subtitle{font-size:1rem;}.social-links{gap:0.5rem;justify-content:center;padding:0.5rem 0;}.social-links .btn{font-size:0.8rem !important;padding:0.75rem 1rem !important;min-height:40px !important;}.btn{padding:1rem 1.75rem;font-size:0.9rem;}.card{padding:1.5rem;}}@media (max-width:480px){h1{font-size:2rem;}.profile-image{width:150px;height:150px;}.container{padding:0 0.75rem;}.social-links{gap:0.25rem;padding:0.25rem 0;}.social-links .btn{font-size:0.7rem !important;padding:0.5rem 0.75rem !important;min-height:36px !important;}}.computer-item{margin-bottom:3rem;padding:2rem;background:var(--surface);border-radius:16px;border:1px solid var(--border);transition:all 0.3s ease;position:relative;overflow:hidden;contain:layout;}.computer-item::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.computer-item:hover::before{transform:scaleX(1);}.computer-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}.computer-item h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1.5rem;letter-spacing:-0.025em;contain:layout;}.computer-item h3 a{color:var(--primary-color);text-decoration:none;transition:color 0.3s ease;}.computer-item h3 a:hover{color:var(--primary-dark);}.computer-content{display:grid;grid-template-columns:320px 1fr;gap:2rem;align-items:start;contain:layout;}.computer-image{width:100%;height:auto;border-radius:12px;box-shadow:var(--shadow-md);transition:transform 0.3s ease;contain:layout;}.computer-image:hover{transform:scale(1.02);}.computer-details h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:0.5rem;margin-top:1rem;display:inline-block;background:var(--primary-color);color:white;padding:0.25rem 0.75rem;border-radius:6px;font-size:0.875rem;contain:layout;}.computer-details p{margin-bottom:1rem;color:var(--text-secondary);line-height:1.5;contain:layout;}.computer-details ul{list-style:none;padding:0;margin-bottom:0.5rem;contain:layout;}.computer-details li{padding:0.25rem 0;padding-left:1.25rem;position:relative;color:var(--text-secondary);font-size:0.875rem;line-height:1.4;contain:layout;}.computer-details li:last-child{margin-bottom:0;}.computer-details li::before{content:'•';position:absolute;left:0;top:0.25rem;color:var(--primary-color);font-weight:bold;contain:layout;}@media (max-width:768px){.computer-content{grid-template-columns:1fr;gap:1.5rem;}.computer-image{max-width:280px;margin:0 auto;}.computer-item{padding:1.5rem;}}@media (max-width:480px){.computer-item{padding:1rem;}.computer-item h3{font-size:1.25rem;}.computer-image{max-width:240px;}}.book-gallery-container{width:100%;contain:layout;}.book-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.25rem;margin:1.5rem 0;contain:layout;}@media (min-width:1200px){.book-gallery{grid-template-columns:repeat(2,1fr);}}@media (min-width:1600px){.book-gallery{grid-template-columns:repeat(3,1fr);}}.book-item{display:flex;gap:1.25rem;padding:1.25rem;background:var(--surface);border-radius:12px;border:1px solid var(--border);transition:all 0.3s ease;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;contain:layout;}.book-item::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0);transition:transform 0.3s ease;}.book-item:hover::before{transform:scaleX(1);}.book-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--primary-light);}.book-cover{width:90px;height:135px;object-fit:cover;border-radius:8px;box-shadow:var(--shadow-md);flex-shrink:0;transition:transform 0.3s ease;contain:layout;}.book-item:hover .book-cover{transform:scale(1.05);}.book-info{flex:1;display:flex;flex-direction:column;justify-content:center;contain:layout;}.book-info strong{color:var(--text-primary);font-weight:700;margin-bottom:0.5rem;line-height:1.4;font-size:1rem;contain:layout;}.book-info em{color:var(--text-secondary);font-style:italic;font-size:0.875rem;margin-bottom:0.75rem;font-weight:500;contain:layout;}.book-info:last-child{color:var(--text-muted);font-size:0.875rem;line-height:1.5;contain:layout;}@media (max-width:768px){.book-gallery{grid-template-columns:1fr;gap:1rem;}.book-item{padding:1rem;gap:1rem;}.book-cover{width:70px;height:105px;}}.repo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;margin:2rem 0;contain:layout;}.repo-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2rem;transition:all var(--transition-normal);position:relative;overflow:hidden;contain:layout;box-shadow:var(--shadow-sm);}.repo-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);transform:scaleX(0);transition:transform var(--transition-normal);}.repo-card:hover::before{transform:scaleX(1);}.repo-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-light);}.repo-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:1.5rem;gap:1rem;contain:layout;}.repo-header h3{margin:0;font-size:1.25rem;font-weight:700;line-height:1.3;contain:layout;}.repo-header h3 a{color:var(--text-primary);text-decoration:none;transition:color var(--transition-fast);contain:layout;}.repo-header h3 a:hover{color:var(--primary-color);}.repo-header h3 a i{margin-right:0.5rem;color:var(--primary-color);font-size:0.9em;transition:transform var(--transition-fast);}.repo-header h3 a:hover i{transform:scale(1.1);}.repo-language{background:var(--primary-color);color:white;padding:0.375rem 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