:root{--primary-color: #6366f1;--primary-dark: #4f46e5;--secondary-color: #8b5cf6;--accent-color: #06b6d4;--background-color: #ffffff;--surface-color: #f8fafc;--card-color: #ffffff;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--border-color: #e2e8f0;--shadow-color: rgba(99, 102, 241, .1);--shadow-hover: rgba(99, 102, 241, .2);--gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);--gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);--gradient-background: radial-gradient(ellipse at top left, #e0e7ff 0%, #ffffff 50%, #f1f5f9 100%);transition:all .3s ease}[data-theme=dark],.dark{--primary-color: #818cf8;--primary-dark: #6366f1;--secondary-color: #a78bfa;--accent-color: #22d3ee;--background-color: #0f172a;--surface-color: #1e293b;--card-color: #1e293b;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--border-color: #334155;--shadow-color: rgba(129, 140, 248, .2);--shadow-hover: rgba(129, 140, 248, .3);--gradient-primary: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);--gradient-secondary: linear-gradient(135deg, #22d3ee 0%, #3b82f6 100%);--gradient-accent: linear-gradient(135deg, #fbbf24 0%, #f87171 100%);--gradient-background: radial-gradient(ellipse at top left, #1e1b4b 0%, #0f172a 50%, #020617 100%);transition:all .3s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{font-family:Inter,sans-serif;background:var(--gradient-background);color:var(--text-primary);line-height:1.6;overflow-x:hidden;transition:background .3s ease,color .3s ease}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.bg-animation{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.floating-shapes{position:relative;width:100%;height:100%}.shape{position:absolute;opacity:.05;animation:floatShape 20s infinite linear}.shape1{top:10%;left:10%;width:100px;height:100px;background:var(--gradient-primary);border-radius:50%;animation-delay:0s}.shape2{top:70%;right:15%;width:80px;height:80px;background:var(--gradient-secondary);transform:rotate(45deg);animation-delay:-5s}.shape3{top:40%;left:80%;width:60px;height:60px;background:var(--gradient-accent);border-radius:30%;animation-delay:-10s}.shape4{bottom:20%;left:20%;width:120px;height:120px;background:var(--gradient-primary);border-radius:25%;animation-delay:-15s}.shape5{top:20%;right:40%;width:90px;height:90px;background:var(--gradient-secondary);border-radius:50%;animation-delay:-8s}.nav-logo{display:flex;align-items:center}.logo-circle{width:50px;height:50px;background:linear-gradient(135deg,#6b4e9a,#4c78a8);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:Poppins,sans-serif;font-weight:700;font-size:1.5rem;color:#fff;text-transform:uppercase;box-shadow:0 4px 15px #4c78a866;transition:transform .3s ease,box-shadow .3s ease}.logo-circle:hover{transform:scale(1.1);box-shadow:0 6px 20px #4c78a899}.nav-container{display:flex;align-items:center;justify-content:space-between;padding:1rem 2rem}.navbar{position:fixed;top:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);z-index:1000;transition:all .3s ease,transform .3s ease}[data-theme=dark] .navbar{background:#0f172af2}.nav-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;height:70px}.logo-text{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:800;font-size:1.5rem;font-family:Poppins,sans-serif}.nav-menu{display:flex;list-style:none;gap:2rem}.nav-link{text-decoration:none;color:var(--text-secondary);font-weight:500;position:relative;transition:all .3s ease;padding:.5rem 0}.nav-link:hover,.nav-link.active{color:var(--primary-color)}.nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gradient-primary);transition:width .3s ease}.nav-link:hover:after,.nav-link.active:after{width:100%}.nav-actions{display:flex;align-items:center;gap:1rem}.theme-toggle{background:var(--surface-color);border:1px solid var(--border-color);color:var(--text-primary);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease}.theme-toggle:hover{background:var(--primary-color);color:#fff;transform:scale(1.1)}.hamburger{display:none;flex-direction:column;cursor:pointer}.hamburger span{width:25px;height:3px;background:var(--text-primary);margin:3px 0;transition:.3s}.hero{min-height:100vh;display:flex;align-items:center;padding-top:70px;position:relative;overflow:hidden}.hero-container{max-width:1200px;margin:0 auto;padding:0 2rem;width:100%}.hero-content{display:grid;grid-template-columns:1.2fr 1fr;gap:5rem;align-items:center}.hero-text{animation:slideInLeft 1s ease-out}.badge-icon{font-size:1.2rem}.badge-text{font-weight:600;color:var(--text-secondary)}.hero-title{font-family:Poppins,sans-serif;font-size:4rem;font-weight:900;line-height:1.1;margin-bottom:1.5rem}.name-text{display:block;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:fadeInUp 1s ease-out .6s both;font-size:3.5rem}.tagline{display:block;color:var(--text-secondary);animation:fadeInUp 1s ease-out .9s both;font-size:2.5rem;font-weight:600;margin-top:1rem;line-height:1.2}.hero-subtitle{font-size:1.3rem;color:var(--text-secondary);margin-bottom:1.5rem;font-weight:500;animation:fadeInUp 1s ease-out 1.5s both}.hero-description{font-size:1.1rem;color:var(--text-muted);margin-bottom:2.5rem;line-height:1.8;max-width:500px;animation:fadeInUp 1s ease-out 1.8s both}.hero-buttons{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3rem;animation:fadeInUp 1s ease-out 2.1s both}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:1rem 2rem;border-radius:50px;text-decoration:none;font-weight:600;font-size:1rem;transition:all .4s cubic-bezier(.175,.885,.32,1.275);position:relative;overflow:hidden;border:none;cursor:pointer}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 10px 30px var(--shadow-color)}.btn-primary:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 20px 40px var(--shadow-hover)}.btn-secondary{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--primary-color);color:#fff;transform:translateY(-3px) scale(1.05);box-shadow:0 20px 40px var(--shadow-hover)}.btn-outline{background:transparent;color:var(--text-primary);border:2px solid var(--border-color);padding:1rem 2rem}.btn-outline:hover{background:var(--border-color);color:var(--text-primary);transform:translateY(-3px) scale(1.05);box-shadow:0 20px 40px var(--shadow-hover)}.btn-outline[download]{background-color:#1e90ff;color:#fff;border-color:#1e90ff;padding:.8rem 1.6rem;transition:all .4s cubic-bezier(.175,.885,.32,1.275)}.btn-outline[download]:hover{background-color:#1c86ee;color:#fff;transform:translateY(-3px) scale(1.05);box-shadow:0 20px 40px #1e90ff4d}.btn-icon{transition:transform .4s ease}.btn:hover .btn-icon{transform:translate(5px)}.hero-stats{display:flex;gap:2rem;animation:fadeInUp 1s ease-out 2.4s both}.stat-item{text-align:center}.stat-number{display:block;font-size:2rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{display:block;font-size:.9rem;color:var(--text-muted);font-weight:500}.hero-image{display:flex;justify-content:center;animation:slideInRight 1s ease-out}.image-container{position:relative;width:400px;height:400px}.image-bg-effect{position:absolute;top:-20px;left:-20px;right:-20px;bottom:-20px;background:var(--gradient-primary);border-radius:50%;filter:blur(30px);opacity:.3;animation:pulse 4s ease-in-out infinite}.profile-image{width:100%;height:100%;border-radius:50%;-o-object-fit:cover;object-fit:cover;border:5px solid var(--card-color);position:relative;z-index:2;animation:float 6s ease-in-out infinite}.floating-elements{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.float-item{position:absolute;width:70px;height:70px;background:var(--gradient-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;box-shadow:0 10px 30px var(--shadow-color);animation:orbit 15s linear infinite}.ai-icon{top:5%;right:5%;animation-delay:0s}.code-icon{bottom:25%;left:-5%;animation-delay:-3.75s}.data-icon{top:60%;right:-10%;animation-delay:-7.5s}.ml-icon{top:25%;left:-5%;animation-delay:-11.25s}.scroll-indicator{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);text-align:center;animation:bounce 2s infinite}.scroll-text{font-size:.9rem;color:var(--text-muted);margin-bottom:.5rem}.scroll-arrow{width:30px;height:30px;border:2px solid var(--primary-color);border-top:none;border-left:none;transform:rotate(45deg);margin:0 auto}section{padding:6rem 0;position:relative}.section-title{text-align:center;font-size:3.5rem;font-weight:800;margin-bottom:4rem;font-family:Poppins,sans-serif;position:relative}.title-bg{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:6rem;font-weight:900;color:var(--border-color);opacity:.1;z-index:-1}.title-main{position:relative;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.subsection-title{font-size:2rem;font-weight:700;margin-bottom:2rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;margin-bottom:2.5rem}.about-image{position:relative;width:100%;max-width:300px;margin:0 auto}.profile-photo{width:100%;height:auto;border-radius:50%;box-shadow:0 8px 32px #0000001a;transition:transform .3s 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.8rem;background:var(--gradient-secondary);color:#fff;border-radius:20px;font-size:.8rem;font-weight:600}.card-badge.completed{background:var(--gradient-accent)}.education-card h4{font-size:1.3rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.duration{color:var(--primary-color);font-weight:600;margin-bottom:.5rem}.description{color:var(--text-muted);font-size:.95rem}.about-summary{background:var(--card-color);padding:3rem;border-radius:25px;box-shadow:0 15px 40px var(--shadow-color);border:1px solid var(--border-color);height:100%}.about-summary p{font-size:1.1rem;line-height:1.8;color:var(--text-secondary);margin-bottom:2rem}.summary-highlights{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.highlight-item{display:flex;align-items:center;gap:.8rem;padding:.8rem;background:var(--surface-color);border-radius:12px;transition:all .3s ease}.highlight-item:hover{transform:translate(5px);background:var(--primary-color);color:#fff}.highlight-item i{color:var(--primary-color);font-size:1.1rem}.highlight-item:hover i{color:#fff}.highlight-item span{font-weight:600;font-size:.9rem}.skills-section{background:var(--card-color);padding:4rem;border-radius:30px;box-shadow:0 20px 50px var(--shadow-color);border:1px solid var(--border-color)}.skills-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:3rem}.skills-container-horizontal{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.skills-category{background:var(--surface-color);padding:2.5rem;border-radius:20px;border:1px solid var(--border-color);transition:all .3s ease}.skills-category:hover{transform:translateY(-5px);box-shadow:0 15px 30px var(--shadow-hover)}.category-title{font-size:1.2rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-primary);text-align:center}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem}.skill-item{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.2rem;background:var(--card-color);border-radius:15px;border:1px solid var(--border-color);transition:all .4s cubic-bezier(.175,.885,.32,1.275);cursor:pointer}.skill-item:hover{transform:translateY(-8px) scale(1.05);box-shadow:0 20px 40px var(--shadow-hover);border-color:var(--primary-color)}.skill-item i{font-size:2rem;color:var(--primary-color);transition:all .3s ease}.skill-item:hover i{transform:scale(1.2) rotate(10deg);color:var(--accent-color)}.skill-item span{font-weight:600;font-size:.9rem;text-align:center;color:var(--text-primary)}.projects{background:var(--surface-color);padding:4rem 0}.projects-list{display:flex;flex-direction:column;gap:2rem}.project-card{display:flex;align-items:stretch;background:var(--card-color);border-radius:20px;box-shadow:0 10px 30px var(--shadow-color);border:1px solid var(--border-color);transition:all .4s cubic-bezier(.175,.885,.32,1.275);overflow:hidden;position:relative}.project-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 20px 40px var(--shadow-hover)}.project-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#6366f11a,#8b5cf61a);opacity:0;transition:opacity .3s ease;z-index:0}.project-card:hover:before{opacity:1}.project-image{flex:0 0 40%;position:relative;overflow:hidden}.project-image img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;display:block;transition:transform .3s ease}.project-card:hover .project-image img{transform:scale(1.05)}.view-demo-btn{position:absolute;top:1rem;left:1rem;background:var(--gradient-primary);color:#fff;padding:.5rem 1rem;border-radius:5px;text-decoration:none;font-weight:600;font-size:.9rem;transition:transform .3s ease,box-shadow .3s ease;z-index:2}.view-demo-btn:hover{transform:scale(1.05);box-shadow:0 5px 15px #6366f166}.project-content{flex:1;padding:1.5rem;display:flex;flex-direction:column;justify-content:space-between;position:relative;z-index:1}.project-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem}.project-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0;line-height:1.3;transition:color .3s ease}.project-card:hover .project-title{color:var(--primary-color)}.code-square{background:transparent;display:flex;align-items:center;justify-content:center}.view-code-btn{color:var(--primary-color);text-decoration:none;font-weight:600;font-size:.9rem;padding:.6rem 1.2rem;border-radius:8px;background:var(--surface-color);border:2px solid var(--primary-color);transition:all .3s ease;box-shadow:0 4px 12px #6366f133}.view-code-btn:hover{background:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:0 6px 15px #6366f14d}.project-description{font-size:1rem;color:var(--text-secondary);line-height:1.5;margin-bottom:.8rem;flex-grow:1}.project-bullets{margin-bottom:.8rem;list-style-type:none}.bullet-item{font-size:.95rem;color:var(--text-secondary);margin-bottom:.4rem;display:flex;align-items:center;gap:.5rem;transition:color .3s ease}.bullet-item:before{content:"✓";color:var(--primary-color);font-weight:700;font-size:1.2rem}.project-card:hover .bullet-item{color:var(--text-primary)}.tech-tabs{display:flex;gap:.5rem;flex-wrap:wrap}.tab{background:var(--surface-color);border:1px solid var(--border-color);color:var(--text-primary);padding:.3rem 1rem;border-radius:15px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .3s ease}.tab:hover{background:var(--gradient-primary);color:#fff;transform:translateY(-2px);box-shadow:0 5px 15px var(--shadow-hover)}.tab-content{margin-top:.8rem;width:100%}.tab-panel{display:none;background:var(--card-color);padding:.8rem;border-radius:15px;border:1px solid var(--border-color);color:var(--text-secondary);font-size:.95rem;line-height:1.5;transition:opacity .3s ease}.tab-panel.active{display:block}@media (max-width: 768px){.project-card{flex-direction:column}.project-image{flex:0 0 100%;height:200px}.project-content{padding:1rem}.project-header{flex-direction:column;align-items:flex-start;gap:.8rem}.code-square{width:100%;margin-top:.5rem}.view-code-btn{width:100%;text-align:center}}@media (max-width: 480px){.project-title{font-size:1.3rem}.project-description{font-size:.9rem}.bullet-item{font-size:.85rem}.tab{padding:.25rem .75rem;font-size:.85rem}}.publications{background:var(--background-color)}.publication-info{background:var(--surface-color)!important;color:var(--text-muted)!important}.publication-card{background:var(--card-color);padding:3rem;border-radius:25px;box-shadow:0 15px 40px var(--shadow-color);border:1px solid var(--border-color);max-width:800px;margin:0 auto;transition:all .3s ease}.publication-card:hover{transform:translateY(-5px);box-shadow:0 25px 50px var(--shadow-hover)}.publication-icon{width:80px;height:80px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;margin:0 auto 2rem}.publication-title{font-size:1.8rem;font-weight:700;color:var(--text-primary);margin-bottom:1.5rem;text-align:center;line-height:1.4}.publication-details{display:flex;justify-content:center;gap:2rem;margin-bottom:2rem;flex-wrap:wrap}.conference,.status{display:flex;align-items:center;gap:.5rem;font-weight:600}.conference{color:var(--text-secondary)}.status.accepted{color:#10b981}.abstract-btn{display:flex;align-items:center;gap:.5rem;background:var(--gradient-primary);color:#fff;border:none;padding:1rem 2rem;border-radius:50px;font-weight:600;cursor:pointer;transition:all .3s ease;margin:0 auto}.abstract-btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px var(--shadow-hover)}.abstract-content{max-height:0;overflow:hidden;transition:max-height .3s ease;margin-top:2rem}.abstract-content.show{max-height:500px}.abstract-text{padding:2rem;background:var(--surface-color);border-radius:15px;border:1px solid var(--border-color)}.abstract-text p{color:var(--text-secondary);line-height:1.8;font-size:1.05rem}.journey{background:var(--surface-color)}.timeline{position:relative;max-width:800px;margin:0 auto}.timeline:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;background:var(--gradient-primary);transform:translate(-50%)}.timeline-item{display:flex;align-items:center;margin-bottom:4rem;position:relative}.timeline-item:nth-child(odd){flex-direction:row-reverse}.timeline-item:nth-child(odd) .timeline-content{text-align:right}.timeline-date{flex:0 0 150px;font-size:1.2rem;font-weight:700;color:var(--primary-color);background:var(--card-color);padding:1rem;border-radius:15px;text-align:center;box-shadow:0 5px 15px var(--shadow-color)}.timeline-content{flex:1;background:var(--card-color);padding:2.5rem;border-radius:20px;box-shadow:0 10px 30px var(--shadow-color);border:1px solid var(--border-color);margin:0 2rem;transition:all .3s ease}.timeline-content:hover{transform:translateY(-5px);box-shadow:0 20px 40px var(--shadow-hover)}.timeline-icon{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;z-index:2}.timeline-content h3{font-size:1.4rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.timeline-content p{color:var(--text-secondary);line-height:1.6}.timeline-item.active .timeline-content{background:var(--gradient-primary);color:#fff}.timeline-item.active .timeline-content h3,.timeline-item.active .timeline-content p{color:#fff}.resume{background:var(--background-color)}.resume-content{max-width:600px;margin:0 auto;text-align:center}.resume-summary{background:var(--card-color);padding:3rem;border-radius:25px;box-shadow:0 15px 40px var(--shadow-color);border:1px solid var(--border-color);margin-bottom:3rem}.resume-summary h3{font-size:2rem;font-weight:700;margin-bottom:1.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.resume-summary p{color:var(--text-secondary);line-height:1.8;font-size:1.1rem}.resume-actions{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}.resume-btn{padding:1.2rem 2.5rem;font-size:1.1rem}.contact{background:var(--surface-color)}.contact-content{max-width:800px;margin:0 auto}.contact-text{text-align:center;margin-bottom:4rem}.contact-text h3{font-size:2.5rem;font-weight:700;margin-bottom:1rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.contact-text p{color:var(--text-secondary);font-size:1.2rem;line-height:1.7}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.contact-card{display:flex;align-items:center;gap:1.5rem;background:var(--card-color);padding:2rem;border-radius:20px;text-decoration:none;color:var(--text-primary);box-shadow:0 10px 30px var(--shadow-color);border:1px solid var(--border-color);transition:all .4s cubic-bezier(.175,.885,.32,1.275);position:relative;overflow:hidden}.contact-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:var(--gradient-primary);opacity:.1;transition:left .5s ease}.contact-card:hover:before{left:0}.contact-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 25px 50px var(--shadow-hover)}.contact-icon{width:60px;height:60px;background:var(--gradient-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;flex-shrink:0}.contact-info{flex:1}.contact-info h4{font-size:1.2rem;font-weight:700;margin-bottom:.3rem;color:var(--text-primary)}.contact-info p{color:var(--text-secondary);font-size:.95rem}.contact-arrow{color:var(--primary-color);font-size:1.2rem;transition:transform .3s ease}.contact-card:hover .contact-arrow{transform:translate(5px)}.footer{background:var(--background-color);padding:3rem 0;border-top:1px solid var(--border-color)}.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:2rem}.footer-text p{color:var(--text-muted);font-size:.95rem}.footer-social{display:flex;gap:1rem}.social-link{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--surface-color);border:1px solid var(--border-color);border-radius:50%;color:var(--text-primary);text-decoration:none;transition:all .3s ease}.social-link:hover{background:var(--primary-color);color:#fff;transform:translateY(-3px)}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background:var(--gradient-primary);color:#fff;border:none;border-radius:50%;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s ease;z-index:1000}.back-to-top.show{opacity:1;visibility:visible}.back-to-top:hover{transform:translateY(-3px) scale(1.1);box-shadow:0 10px 30px var(--shadow-hover)}@keyframes slideInLeft{0%{opacity:0;transform:translate(-50px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(50px)}to{opacity:1;transform:translate(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes orbit{0%{transform:rotate(0) translate(200px) rotate(0)}to{transform:rotate(360deg) translate(200px) rotate(-360deg)}}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0) translate(-50%)}40%{transform:translateY(-10px) translate(-50%)}60%{transform:translateY(-5px) translate(-50%)}}@keyframes floatShape{0%{transform:translateY(100vh) rotate(0)}to{transform:translateY(-100px) rotate(360deg)}}@media (max-width: 768px){.container{padding:0 1rem}.nav-menu{position:fixed;left:-100%;top:70px;flex-direction:column;background-color:var(--card-color);width:100%;text-align:center;transition:.3s;box-shadow:0 10px 27px var(--shadow-color);padding:2rem 0}.nav-menu.active{left:0}.hamburger{display:flex}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.hero-content{grid-template-columns:1fr;gap:3rem;text-align:center}.hero-image{order:-1}.image-container{width:280px;height:280px;margin:0 auto}.hero-title{font-size:2.5rem}.title-bg{font-size:4rem}.section-title{font-size:2.5rem}.about-content,.skills-container{grid-template-columns:1fr;gap:2rem}.projects-grid{grid-template-columns:1fr}.project-card-full{flex-direction:column!important;gap:0}.project-card-full:nth-child(2n){flex-direction:column!important}.project-image-full{flex:none;width:100%;height:250px}.project-content-full{padding:2rem}.project-details{flex-direction:column;gap:1.5rem}.skills-container-horizontal{grid-template-columns:1fr;gap:1.5rem}.hero-stats{justify-content:center}.timeline:before{left:2rem}.timeline-item{flex-direction:row!important;padding-left:4rem}.timeline-item .timeline-content{text-align:left!important;margin-left:2rem;margin-right:0}.timeline-icon{left:2rem!important;transform:translateY(-50%)!important}.timeline-date{position:absolute;left:-2rem;top:-3rem;flex:none;width:auto;padding:.5rem 1rem;font-size:1rem}.contact-grid{grid-template-columns:1fr}.footer-content{text-align:center;flex-direction:column}.image-container{width:300px;height:300px}.float-item{width:50px;height:50px;font-size:1.2rem}}@media (max-width: 480px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1.1rem}.hero-description{font-size:1rem}.btn{padding:.8rem 1.5rem;font-size:.9rem}.section-title{font-size:2rem}.subsection-title{font-size:1.5rem}.image-container{width:250px;height:250px}}