.skip-link{position:absolute;top:-100%;left:50%;transform:translateX(-50%);background:var(--color-accent);color:#fff;padding:.75rem 1.5rem;border-radius:var(--radius-md);z-index:9999;font-weight:var(--fw-semibold);text-decoration:none;transition:top var(--transition-fast)}.skip-link:focus{top:1rem;outline:2px solid white;outline-offset:2px}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important;scroll-behavior:auto!important}}:root{--color-bg-primary:#0a0a0f;--color-bg-secondary:#12121a;--color-bg-card:#1a1a25;--color-bg-hover:#22222f;--color-text-primary:#f0f0f5;--color-text-secondary:#a0a0b0;--color-text-muted:#6a6a7a;--color-accent:#3b82f6;--color-accent-hover:#60a5fa;--color-accent-glow:rgba(59, 130, 246, 0.3);--color-border:#2a2a3a;--color-border-subtle:#1f1f2a;--gradient-hero:linear-gradient(135deg, #0a0a0f 0%, #1a1a30 50%, #0a0a0f 100%);--gradient-accent:linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);--gradient-card:linear-gradient(180deg, var(--color-bg-card) 0%, var(--color-bg-secondary) 100%);--font-primary:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-mono:'JetBrains Mono','Fira Code',monospace;--fs-xs:0.75rem;--fs-sm:0.875rem;--fs-base:1rem;--fs-lg:1.125rem;--fs-xl:1.25rem;--fs-2xl:1.5rem;--fs-3xl:2rem;--fs-4xl:2.5rem;--fs-5xl:3.5rem;--fw-normal:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--lh-tight:1.2;--lh-normal:1.5;--lh-relaxed:1.75;--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;--space-24:6rem;--radius-sm:0.25rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0, 0, 0, 0.3);--shadow-md:0 4px 12px rgba(0, 0, 0, 0.4);--shadow-lg:0 8px 24px rgba(0, 0, 0, 0.5);--shadow-glow:0 0 40px var(--color-accent-glow);--transition-fast:150ms ease;--transition-normal:250ms ease;--transition-slow:400ms ease;--container-max:1200px;--container-padding:var(--space-6)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:80px}body{font-family:var(--font-primary);font-size:var(--fs-base);font-weight:var(--fw-normal);line-height:var(--lh-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img{max-width:100%;height:auto;display:block}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}ol,ul{list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:0 0}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding)}.section{padding:var(--space-24) 0;position:relative;z-index:1;background:var(--color-bg-primary)}.section-header{margin-bottom:var(--space-12);text-align:center}.section-title{font-size:var(--fs-3xl);font-weight:var(--fw-bold);color:var(--color-text-primary);margin-bottom:var(--space-4)}.section-subtitle{font-size:var(--fs-lg);color:var(--color-text-secondary);max-width:600px;margin:0 auto}.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,10,15,.8);backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border-subtle)}.nav-container{display:flex;align-items:center;justify-content:space-between;height:56px}.nav-logo{font-size:var(--fs-xl);font-weight:var(--fw-bold);color:var(--color-text-primary);letter-spacing:-.02em}.nav-logo:hover{color:var(--color-text-primary)}.nav-logo span{color:var(--color-accent)}.nav-links{display:flex;align-items:center;gap:var(--space-8)}.nav-link{font-size:var(--fs-sm);font-weight:var(--fw-medium);color:var(--color-text-secondary);transition:color var(--transition-fast);position:relative}.nav-link:hover{color:var(--color-text-primary)}.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--gradient-accent);transition:width var(--transition-normal)}.nav-link:hover::after{width:100%}.nav-lang{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:var(--fs-sm);color:var(--color-text-secondary);transition:all var(--transition-fast)}.nav-lang:hover{border-color:var(--color-accent);color:var(--color-text-primary)}.nav-toggle{display:none;flex-direction:column;gap:5px;padding:var(--space-2)}.nav-toggle span{display:block;width:24px;height:2px;background:var(--color-text-primary);transition:all var(--transition-fast)}@media (max-width:1024px){.nav-toggle{display:flex}.nav-links{display:none;position:fixed;top:56px;left:0;right:0;bottom:0;width:100%;height:calc(100vh - 56px);background-color:#0a0a0f!important;flex-direction:column;justify-content:flex-start;align-items:center;padding-top:var(--space-8);gap:var(--space-6);z-index:9999}.nav-links.active{display:flex}.nav-link{font-size:var(--fs-lg);color:var(--color-text-primary)}.nav-lang{margin-top:var(--space-4)}}.hero{min-height:100vh;display:flex;align-items:center;background:var(--gradient-hero);position:relative;overflow:hidden;padding-top:56px}.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 30% 50%,var(--color-accent-glow) 0,transparent 50%);opacity:.5}.hero-content{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-16);align-items:center}.hero-text{animation:fadeInUp .8s ease forwards}.hero-greeting{font-size:var(--fs-lg);color:var(--color-accent);font-weight:var(--fw-medium);margin-bottom:var(--space-4)}.hero-name{font-size:var(--fs-5xl);font-weight:var(--fw-bold);line-height:var(--lh-tight);margin-bottom:var(--space-4);background:linear-gradient(135deg,var(--color-text-primary) 0,var(--color-text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-title{font-size:var(--fs-2xl);color:var(--color-text-secondary);margin-bottom:var(--space-6)}.hero-description{font-size:var(--fs-lg);color:var(--color-text-muted);line-height:var(--lh-relaxed);margin-bottom:var(--space-8);max-width:500px}.hero-cta{display:flex;gap:var(--space-4);flex-wrap:wrap}.hero-image{display:flex;justify-content:center;animation:fadeInUp .8s ease .2s forwards;opacity:0}.hero-avatar{width:350px;height:350px;border-radius:var(--radius-2xl);object-fit:cover;border:4px solid var(--color-border);box-shadow:var(--shadow-glow)}@media (max-width:968px){.hero-content{grid-template-columns:1fr;text-align:center;gap:var(--space-4)}.hero-text{order:2}.hero-image{order:1;margin-bottom:0}.hero-avatar{width:180px;height:180px}.hero-greeting{margin-bottom:var(--space-2)}.hero-name{font-size:var(--fs-3xl);margin-bottom:var(--space-2)}.hero-title{font-size:var(--fs-lg);margin-bottom:var(--space-3)}.hero-description{margin:0 auto var(--space-4);font-size:var(--fs-base)}.hero-cta{justify-content:center}.hero-cta .btn{opacity:1!important}.hero-cta .btn-primary{background:linear-gradient(135deg,#3b82f6 0,#8b5cf6 100%);box-shadow:0 4px 15px rgba(59,130,246,.4)}.hero-cta .btn-secondary{background:#1a1a25;border:2px solid #3b82f6}}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-size:var(--fs-sm);font-weight:var(--fw-semibold);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.btn-primary{background:var(--gradient-accent);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),var(--shadow-glow);color:#fff}.btn-secondary{background:var(--color-bg-card);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-hover);border-color:var(--color-accent);color:var(--color-text-primary)}.btn-icon{width:44px;height:44px;padding:0;justify-content:center;border-radius:var(--radius-full)}.about-content{display:grid;grid-template-columns:2fr 1fr;gap:var(--space-12);align-items:start}.about-text p{font-size:var(--fs-lg);color:var(--color-text-secondary);line-height:var(--lh-relaxed);margin-bottom:var(--space-6)}.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-6)}.stat-card{background:var(--color-bg-card);padding:var(--space-6);border-radius:var(--radius-xl);border:1px solid var(--color-border);text-align:center;transition:all var(--transition-fast)}.stat-card:hover{transform:translateY(-4px);border-color:var(--color-accent);box-shadow:var(--shadow-glow)}.stat-number{font-size:var(--fs-3xl);font-weight:var(--fw-bold);color:var(--color-accent);margin-bottom:var(--space-2)}.stat-label{font-size:var(--fs-sm);color:var(--color-text-muted)}@media (max-width:768px){.about-content{grid-template-columns:1fr}.about-stats{grid-template-columns:repeat(2,1fr)}}.timeline{position:relative;max-width:900px;margin:0 auto}.timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--color-border)}.timeline-item{position:relative;padding-left:var(--space-10);padding-bottom:var(--space-10)}.timeline-item:last-child{padding-bottom:0}.timeline-dot{position:absolute;left:-6px;top:0;width:14px;height:14px;border-radius:var(--radius-full);background:var(--color-accent);border:3px solid var(--color-bg-primary);box-shadow:0 0 0 3px var(--color-accent-glow)}.timeline-card{background:var(--color-bg-card);padding:var(--space-6);border-radius:var(--radius-xl);border:1px solid var(--color-border);transition:all var(--transition-fast)}.timeline-card:hover{border-color:var(--color-accent);transform:translateX(8px)}.timeline-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-4);flex-wrap:wrap;gap:var(--space-2)}.timeline-title{font-size:var(--fs-xl);font-weight:var(--fw-semibold);color:var(--color-text-primary)}.timeline-company{font-size:var(--fs-base);color:var(--color-accent);font-weight:var(--fw-medium)}.timeline-date{font-size:var(--fs-sm);color:var(--color-text-muted);background:var(--color-bg-secondary);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full)}.timeline-description{color:var(--color-text-secondary);line-height:var(--lh-relaxed);margin-bottom:var(--space-4)}.timeline-achievements{list-style:none;padding:0}.timeline-achievements li{position:relative;padding-left:var(--space-5);margin-bottom:var(--space-2);color:var(--color-text-secondary);font-size:var(--fs-sm)}.timeline-achievements li::before{content:'→';position:absolute;left:0;color:var(--color-accent)}.timeline-skills{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}.skill-tag{font-size:var(--fs-xs);padding:var(--space-1) var(--space-3);background:var(--color-bg-secondary);color:var(--color-text-secondary);border-radius:var(--radius-full);border:1px solid var(--color-border)}@media (max-width:768px){.timeline::before{left:6px}.timeline-dot{left:0}.timeline-item{padding-left:var(--space-8)}}.certs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-6)}.cert-card{background:var(--color-bg-card);padding:var(--space-6);border-radius:var(--radius-xl);border:1px solid var(--color-border);transition:all var(--transition-fast);display:flex;gap:var(--space-4);align-items:flex-start}.cert-card:hover{border-color:var(--color-accent);transform:translateY(-4px)}.cert-icon{width:48px;height:48px;background:var(--gradient-accent);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--fs-xl);flex-shrink:0}.cert-info h3{font-size:var(--fs-base);font-weight:var(--fw-semibold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.cert-issuer{font-size:var(--fs-sm);color:var(--color-accent);margin-bottom:var(--space-1)}.cert-date{font-size:var(--fs-xs);color:var(--color-text-muted)}.interests-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-8)}.interest-card{background:var(--color-bg-card);padding:var(--space-8);border-radius:var(--radius-xl);border:1px solid var(--color-border);transition:all var(--transition-fast)}.interest-card:hover{border-color:var(--color-accent);transform:translateY(-4px);box-shadow:var(--shadow-glow)}.interest-icon{font-size:var(--fs-3xl);margin-bottom:var(--space-4)}.interest-title{font-size:var(--fs-xl);font-weight:var(--fw-semibold);color:var(--color-text-primary);margin-bottom:var(--space-4)}.interest-content{color:var(--color-text-secondary);line-height:var(--lh-relaxed)}.interest-list{margin-top:var(--space-4)}.interest-list li{padding:var(--space-2) 0;border-bottom:1px solid var(--color-border-subtle);display:flex;align-items:center;gap:var(--space-3)}.interest-list li:last-child{border-bottom:none}.interest-list .book-author,.interest-list .game-genre{font-size:var(--fs-sm);color:var(--color-text-muted)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:var(--space-8)}.project-card{background:var(--color-bg-card);border-radius:var(--radius-xl);border:1px solid var(--color-border);overflow:hidden;transition:all var(--transition-fast)}.project-card:hover{border-color:var(--color-accent);transform:translateY(-4px);box-shadow:var(--shadow-glow)}.project-image{height:200px;background:var(--gradient-hero);display:flex;align-items:center;justify-content:center;font-size:var(--fs-4xl)}.project-content{padding:var(--space-6)}.project-title{font-size:var(--fs-xl);font-weight:var(--fw-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.project-description{color:var(--color-text-secondary);margin-bottom:var(--space-4);line-height:var(--lh-relaxed)}.project-tech{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-4)}.project-links{display:flex;gap:var(--space-4)}.project-link{font-size:var(--fs-sm);font-weight:var(--fw-medium);display:flex;align-items:center;gap:var(--space-2)}.conferences-list{max-width:800px;margin:0 auto}.conference-item{display:flex;gap:var(--space-6);padding:var(--space-6);background:var(--color-bg-card);border-radius:var(--radius-xl);border:1px solid var(--color-border);margin-bottom:var(--space-4);transition:all var(--transition-fast)}.conference-item:hover{border-color:var(--color-accent);transform:translateX(8px)}.conference-year{font-size:var(--fs-2xl);font-weight:var(--fw-bold);color:var(--color-accent);flex-shrink:0;width:80px}.conference-info h3{font-size:var(--fs-lg);font-weight:var(--fw-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.conference-role{font-size:var(--fs-sm);color:var(--color-text-muted);margin-bottom:var(--space-2)}.conference-location{font-size:var(--fs-sm);color:var(--color-text-secondary)}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--space-8)}.blog-card{background:var(--color-bg-card);border-radius:var(--radius-xl);border:1px solid var(--color-border);overflow:hidden;transition:all var(--transition-fast)}.blog-card:hover{border-color:var(--color-accent);transform:translateY(-4px)}.blog-image{height:180px;background:var(--gradient-hero)}.blog-content{padding:var(--space-6)}.blog-date{font-size:var(--fs-xs);color:var(--color-text-muted);margin-bottom:var(--space-2)}.blog-title{font-size:var(--fs-lg);font-weight:var(--fw-semibold);color:var(--color-text-primary);margin-bottom:var(--space-3);line-height:var(--lh-tight)}.blog-excerpt{color:var(--color-text-secondary);font-size:var(--fs-sm);line-height:var(--lh-relaxed)}.contact{background:var(--color-bg-secondary)}.contact-content{text-align:center;max-width:600px;margin:0 auto}.contact-title{font-size:var(--fs-3xl);font-weight:var(--fw-bold);margin-bottom:var(--space-4)}.contact-text{font-size:var(--fs-lg);color:var(--color-text-secondary);margin-bottom:var(--space-8)}.contact-email{font-size:var(--fs-2xl);font-weight:var(--fw-semibold);color:var(--color-accent);margin-bottom:var(--space-8);display:block}.contact-email:hover{color:var(--color-accent-hover)}.social-links{display:flex;justify-content:center;gap:var(--space-4)}.social-link{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-secondary);font-size:var(--fs-xl);transition:all var(--transition-fast)}.social-link:hover{background:var(--color-accent);border-color:var(--color-accent);color:#fff;transform:translateY(-4px)}.footer{padding:var(--space-8) 0;border-top:1px solid var(--color-border);text-align:center}.footer-text{font-size:var(--fs-sm);color:var(--color-text-muted)}@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-accent{color:var(--color-accent)}.text-center{text-align:center}.mt-4{margin-top:var(--space-4)}.mb-4{margin-bottom:var(--space-4)}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:48px;height:48px;border-radius:var(--radius-full);background:var(--gradient-accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:all var(--transition-normal);box-shadow:var(--shadow-lg);z-index:1000}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg),var(--shadow-glow)}@media print{.hero-cta,.nav,.social-links{display:none}body{color:#000;background:#fff}}