:root{--color-text: #1a1a1a;--color-text-light: #666;--color-text-lighter: #888;--color-bg: #ffffff;--color-bg-alt: #f8f9fa;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-border: #e5e7eb;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--max-width: 1100px;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 5rem}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-md)}section{padding:var(--spacing-2xl) 0}h1,h2,h3,h4{font-weight:600;line-height:1.3}h1{font-size:3rem;font-weight:700;letter-spacing:-.02em}h2{font-size:2rem;margin-bottom:var(--spacing-lg);letter-spacing:-.01em}h3{font-size:1.25rem;margin-bottom:var(--spacing-xs)}a{color:var(--color-accent);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-accent-hover)}.header{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);z-index:100}.header-container{max-width:var(--max-width);margin:0 auto;padding:var(--spacing-sm) var(--spacing-md);display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.25rem;font-weight:700;color:var(--color-text)}.logo:hover{color:var(--color-accent)}.nav{display:flex;gap:var(--spacing-md)}.nav a{color:var(--color-text-light);font-size:.9rem;font-weight:500}.nav a:hover{color:var(--color-text)}.hero{padding-top:calc(var(--spacing-2xl) + 60px);padding-bottom:var(--spacing-2xl);text-align:center}.hero h1{margin-bottom:var(--spacing-sm)}.hero-title{font-size:1.5rem;color:var(--color-text);font-weight:500;margin-bottom:var(--spacing-xs)}.hero-subtitle{font-size:1.1rem;color:var(--color-text-light);margin-bottom:var(--spacing-xs)}.hero-location{color:var(--color-text-lighter);margin-bottom:var(--spacing-lg)}.hero-links{display:flex;gap:var(--spacing-sm);justify-content:center;flex-wrap:wrap}.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:6px;font-weight:500;font-size:.95rem;transition:all .2s ease}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:hover{background-color:var(--color-accent-hover);color:#fff}.btn-secondary{background-color:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{border-color:var(--color-text);color:var(--color-text)}.about{background-color:var(--color-bg-alt)}.about-text{font-size:1.1rem;line-height:1.8;color:var(--color-text-light);max-width:800px}.timeline{display:flex;flex-direction:column;gap:var(--spacing-xl)}.timeline-item{padding-bottom:var(--spacing-lg);border-bottom:1px solid var(--color-border)}.timeline-item:last-child{border-bottom:none;padding-bottom:0}.timeline-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-sm);flex-wrap:wrap;gap:var(--spacing-sm)}.timeline-header h3{margin-bottom:.25rem}.company{color:var(--color-text-light);font-size:.95rem}.period{color:var(--color-text-lighter);font-size:.9rem;white-space:nowrap}.highlights{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-xs)}.highlights li{position:relative;padding-left:1.25rem;color:var(--color-text-light);font-size:.95rem;line-height:1.7}.highlights li:before{content:"•";position:absolute;left:0;color:var(--color-accent)}.projects{background-color:var(--color-bg-alt)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-md)}.project-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;padding:var(--spacing-md)}.project-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-sm);gap:var(--spacing-sm)}.project-header h3{margin-bottom:0}.project-company{color:var(--color-text-lighter);font-size:.85rem;white-space:nowrap}.project-description{color:var(--color-text-light);font-size:.9rem;margin-bottom:var(--spacing-sm);line-height:1.6}.project-impact{color:var(--color-accent);font-weight:500;font-size:.9rem;margin-bottom:var(--spacing-sm)}.project-tags{display:flex;flex-wrap:wrap;gap:.5rem}.tag{background-color:var(--color-bg-alt);color:var(--color-text-light);padding:.25rem .6rem;border-radius:4px;font-size:.8rem}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-lg)}.skills-section{padding:var(--spacing-md);background:var(--color-bg-alt);border-radius:8px}.skills-section h3{margin-bottom:var(--spacing-sm);font-size:1.1rem}.skills-section h4{font-size:.9rem;color:var(--color-text-lighter);font-weight:500;margin-bottom:.25rem}.skill-tags{display:flex;flex-wrap:wrap;gap:.5rem}.skill-tag{background:var(--color-bg);border:1px solid var(--color-border);padding:.3rem .7rem;border-radius:4px;font-size:.85rem;color:var(--color-text-light)}.languages-platforms{display:flex;flex-direction:column;gap:var(--spacing-sm)}.languages-platforms p{color:var(--color-text-light);font-size:.95rem}.education-list,.publications-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.education-item .degree,.publication-item .pub-title{font-weight:500;color:var(--color-text);font-size:.95rem}.education-item .school,.publication-item .pub-venue{color:var(--color-text-light);font-size:.9rem}.contact{background-color:var(--color-bg-alt);text-align:center}.contact-text{color:var(--color-text-light);max-width:600px;margin:0 auto var(--spacing-lg);font-size:1.1rem}.contact-links{display:flex;justify-content:center;gap:var(--spacing-lg);flex-wrap:wrap}.contact-item{display:flex;flex-direction:column;gap:.25rem;padding:var(--spacing-md);background:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;min-width:180px;transition:border-color .2s ease}.contact-item:hover{border-color:var(--color-accent)}.contact-label{font-size:.8rem;color:var(--color-text-lighter);text-transform:uppercase;letter-spacing:.05em}.contact-value{color:var(--color-text);font-weight:500}@media(max-width:768px){h1{font-size:2.25rem}h2{font-size:1.5rem}.hero-title{font-size:1.25rem}.nav{gap:var(--spacing-sm)}.nav a{font-size:.85rem}.timeline-header{flex-direction:column;gap:.25rem}.period{order:-1}.projects-grid{grid-template-columns:1fr}.contact-links{flex-direction:column;align-items:center}.contact-item{width:100%;max-width:300px}}@media(max-width:480px){.header-container{flex-direction:column;gap:var(--spacing-sm)}.nav{flex-wrap:wrap;justify-content:center}section{padding:var(--spacing-xl) 0}}