*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,Segoe UI,Roboto,sans-serif;line-height:1.6;color:#2c3e50;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;overflow-x:hidden}.app{min-height:100vh;position:relative;opacity:0;transform:translateY(20px);transition:all 1s ease-out}.app.loaded{opacity:1;transform:translateY(0)}.background-animation{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;overflow:hidden}.floating-shapes{position:relative;width:100%;height:100%}.floating-shape{position:absolute;background:linear-gradient(45deg,#ffffff1a,#ffffff0d);border-radius:50%;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.floating-shape:nth-child(1){width:80px;height:80px;top:10%;left:10%}.floating-shape:nth-child(2){width:120px;height:120px;top:20%;right:15%}.floating-shape:nth-child(3){width:60px;height:60px;bottom:30%;left:20%}.floating-shape:nth-child(4){width:100px;height:100px;bottom:20%;right:10%}.floating-shape:nth-child(5){width:40px;height:40px;top:50%;left:50%}.floating-shape:nth-child(6){width:90px;height:90px;top:70%;right:30%}.header{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.2);position:sticky;top:0;z-index:100;box-shadow:0 8px 32px #0000001a}.header-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:.75rem;font-size:1.5rem;font-weight:700;color:#2c3e50}.logo svg{color:#667eea}.header-actions{display:flex;gap:1rem;flex-wrap:wrap}.download-btn{display:flex;align-items:center;gap:.75rem;padding:1rem 1.5rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:16px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea66;text-decoration:none;min-width:200px;position:relative;overflow:hidden}.download-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.download-btn:hover:before{left:100%}.download-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea99}.btn-content{display:flex;flex-direction:column;align-items:flex-start;gap:.25rem}.btn-title{font-size:1rem;font-weight:700;line-height:1.2}.btn-subtitle{font-size:.8rem;font-weight:400;opacity:.9;line-height:1.2}.cv-btn{background:linear-gradient(135deg,#667eea,#764ba2)}.resume-btn{background:linear-gradient(135deg,#4facfe,#00f2fe)}.resume-btn:hover{box-shadow:0 8px 25px #4facfe99}@media (max-width: 768px){.header-actions{flex-direction:column;width:100%}.download-btn{min-width:auto;width:100%;justify-content:center}}.navigation{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.2);position:sticky;top:80px;z-index:90}.nav-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;justify-content:center;gap:.5rem}.nav-tab{display:flex;align-items:center;gap:.5rem;padding:1rem 1.5rem;background:transparent;border:none;color:#64748b;font-weight:500;cursor:pointer;transition:all .3s ease;border-radius:12px;position:relative;overflow:hidden}.nav-tab:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#667eea,#764ba2);opacity:0;transition:opacity .3s ease;z-index:-1}.nav-tab:hover:before,.nav-tab.active:before{opacity:1}.nav-tab:hover,.nav-tab.active{color:#fff;transform:translateY(-2px)}.nav-tab svg{transition:transform .3s ease}.nav-tab:hover svg,.nav-tab.active svg{transform:scale(1.1)}.main-content{max-width:1200px;margin:0 auto;padding:3rem 2rem;min-height:calc(100vh - 200px)}.content-container{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:24px;padding:3rem;box-shadow:0 20px 60px #0000001a;border:1px solid rgba(255,255,255,.2)}.tab-content{min-height:600px}.hero-section{text-align:center;margin-bottom:3rem}.profile-image{margin-bottom:2rem}.avatar{width:150px;height:150px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto;color:#fff;box-shadow:0 20px 40px #667eea4d;border:4px solid rgba(255,255,255,.2)}.hero-text h1{font-size:3rem;font-weight:800;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.hero-text h2{font-size:1.5rem;color:#64748b;font-weight:600;margin-bottom:1.5rem}.summary{font-size:1.1rem;line-height:1.8;color:#475569;max-width:800px;margin:0 auto;text-align:justify}.contact-section{margin-top:3rem}.contact-section h3{font-size:1.5rem;font-weight:700;color:#2c3e50;margin-bottom:1.5rem;text-align:center}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;max-width:800px;margin:0 auto}.contact-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-radius:12px;border:1px solid rgba(102,126,234,.1);transition:all .3s ease}.contact-item:hover{transform:translateY(-2px);box-shadow:0 8px 25px #667eea26}.contact-icon{color:#667eea;flex-shrink:0}.timeline{position:relative;padding-left:2rem}.timeline:before{content:"";position:absolute;left:1rem;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#667eea,#764ba2)}.timeline-item{position:relative;margin-bottom:3rem;padding-left:2rem}.timeline-marker{position:absolute;left:-2rem;top:.5rem;width:1rem;height:1rem;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;border:3px solid white;box-shadow:0 4px 12px #667eea4d}.timeline-content{background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem;border-radius:16px;border:1px solid rgba(102,126,234,.1);box-shadow:0 8px 25px #0000000d}.experience-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;flex-wrap:wrap;gap:1rem}.experience-header h3{font-size:1.5rem;font-weight:700;color:#2c3e50}.period{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:700;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.3);border:2px solid rgba(255,255,255,.2);box-shadow:0 4px 12px #667eea4d}.company-info{display:flex;align-items:center;gap:.5rem;margin-bottom:1.5rem;color:#667eea;font-weight:600}.company-icon{color:#667eea}.achievements{list-style:none;padding:0}.achievements li{position:relative;padding-left:1.5rem;margin-bottom:.75rem;line-height:1.6;color:#475569}.achievements li:before{content:"▸";position:absolute;left:0;color:#667eea;font-weight:700}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.skill-category{background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem;border-radius:16px;border:1px solid rgba(102,126,234,.1);box-shadow:0 8px 25px #0000000d}.skill-category h3{font-size:1.3rem;font-weight:700;color:#2c3e50;margin-bottom:1.5rem;text-align:center;position:relative}.skill-category h3:after{content:"";position:absolute;bottom:-.5rem;left:50%;transform:translate(-50%);width:50px;height:3px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:2px}.skills-list{display:flex;flex-direction:column;gap:1rem}.skill-item{background:#fff;padding:1rem;border-radius:12px;box-shadow:0 4px 12px #0000000d}.skill-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.skill-name{font-weight:600;color:#2c3e50}.skill-percentage{font-weight:700;color:#667eea;font-size:.9rem}.skill-bar{height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden;position:relative}.skill-progress{height:100%;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:4px;position:relative}.skill-progress:after{content:"";position:absolute;top:0;right:0;bottom:0;width:2px;background:#fffc;animation:shimmer 2s infinite}@keyframes shimmer{0%,to{opacity:0}50%{opacity:1}}.education-grid{display:grid;gap:2rem;margin-bottom:3rem}.education-item{display:flex;gap:1.5rem;background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem;border-radius:16px;border:1px solid rgba(102,126,234,.1);box-shadow:0 8px 25px #0000000d;transition:all .3s ease}.education-item:hover{transform:translateY(-4px);box-shadow:0 12px 35px #667eea26}.education-icon{color:#667eea;flex-shrink:0;margin-top:.25rem}.education-content h3{font-size:1.3rem;font-weight:700;color:#2c3e50;margin-bottom:.5rem}.institution{color:#667eea;font-weight:600;margin-bottom:.25rem}.period{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:700;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.3);border:2px solid rgba(255,255,255,.2);box-shadow:0 4px 12px #667eea4d;display:inline-block;margin-bottom:1rem}.description{color:#475569;line-height:1.6}.certifications-section h3{font-size:1.5rem;font-weight:700;color:#2c3e50;margin-bottom:1.5rem;text-align:center}.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.certification-item{display:flex;gap:1rem;background:#fff;padding:1.5rem;border-radius:12px;border:1px solid rgba(102,126,234,.1);box-shadow:0 4px 12px #0000000d;transition:all .3s ease}.certification-item:hover{transform:translateY(-2px);box-shadow:0 8px 25px #667eea26}.cert-icon{color:#667eea;flex-shrink:0}.cert-content h4{font-weight:600;color:#2c3e50;margin-bottom:.25rem;line-height:1.4}.cert-content p{color:#64748b;font-size:.9rem}.projects-grid{display:grid;gap:2rem}.project-item{background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem;border-radius:16px;border:1px solid rgba(102,126,234,.1);box-shadow:0 8px 25px #0000000d;transition:all .3s ease}.project-item:hover{transform:translateY(-4px);box-shadow:0 12px 35px #667eea26}.project-header{display:flex;gap:1rem;margin-bottom:1.5rem}.project-icon{color:#667eea;flex-shrink:0;margin-top:.25rem}.project-header h3{font-size:1.3rem;font-weight:700;color:#2c3e50;margin-bottom:.5rem;line-height:1.4}.project-date{display:flex;align-items:center;gap:.5rem;color:#667eea;font-weight:600;font-size:.9rem}.project-description{list-style:none;padding:0}.project-description li{position:relative;padding-left:1.5rem;margin-bottom:.75rem;line-height:1.6;color:#475569}.project-description li:before{content:"▸";position:absolute;left:0;color:#667eea;font-weight:700}.publications-list{display:grid;gap:2rem}.publication-item{display:flex;gap:1.5rem;background:linear-gradient(135deg,#f8fafc,#e2e8f0);padding:2rem;border-radius:16px;border:1px solid rgba(102,126,234,.1);box-shadow:0 8px 25px #0000000d;transition:all .3s ease}.publication-item:hover{transform:translateY(-4px);box-shadow:0 12px 35px #667eea26}.publication-icon{color:#667eea;flex-shrink:0;margin-top:.25rem}.publication-content h3{font-size:1.2rem;font-weight:700;color:#2c3e50;margin-bottom:.75rem;line-height:1.4}.authors{color:#475569;margin-bottom:.5rem;font-weight:500}.journal{color:#667eea;font-style:italic;font-weight:600}.tab-content h2{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;margin-bottom:3rem;position:relative}.tab-content h2:after{content:"";position:absolute;bottom:-1rem;left:50%;transform:translate(-50%);width:100px;height:4px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:2px}.footer{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid rgba(255,255,255,.2);padding:2rem;text-align:center;color:#64748b;margin-top:3rem}@media (max-width: 768px){.header-content{padding:1rem;flex-direction:column;gap:1rem}.nav-container{padding:0 1rem;flex-wrap:wrap;justify-content:center}.nav-tab{padding:.75rem 1rem;font-size:.9rem}.nav-tab span{display:none}.main-content{padding:2rem 1rem}.content-container{padding:2rem 1.5rem}.hero-text h1{font-size:2rem}.hero-text h2{font-size:1.2rem}.contact-grid,.skills-grid,.certifications-grid{grid-template-columns:1fr}.experience-header{flex-direction:column;align-items:flex-start}.timeline{padding-left:1rem}.timeline-item{padding-left:1.5rem}.timeline-marker{left:-1.5rem}.education-item,.publication-item{flex-direction:column;gap:1rem}.project-header{flex-direction:column;gap:.5rem}}@media (max-width: 480px){.avatar{width:120px;height:120px}.hero-text h1{font-size:1.75rem}.tab-content h2{font-size:2rem}.timeline-content,.skill-category,.education-item,.project-item,.publication-item{padding:1.5rem}}html{scroll-behavior:smooth}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,#5a67d8,#6b46c1)}