:root{--primary-color:#00D4FF;--secondary-color:#00FF88;--accent-color:#FF6B6B;--dark-bg:#0A1628;--darker-bg:#1A202C;--light-bg:#F8F9FA;--text-primary:#FFFFFF;--text-secondary:#B0BEC5;--text-muted:#78909C;--font-primary:'Inter',sans-serif;--font-mono:'JetBrains Mono',monospace;--section-padding:100px 0;--container-padding:0 20px;--border-radius:12px;--transition-fast:0.2s ease;--transition-normal:0.3s ease;--transition-slow:0.5s ease;--shadow-light:0 4px 6px rgba(0,0,0,0.1);--shadow-medium:0 8px 25px rgba(0,0,0,0.15);--shadow-heavy:0 20px 40px rgba(0,0,0,0.3)}[data-theme="light"]{--dark-bg:#FFFFFF;--darker-bg:#F8F9FA;--light-bg:#0A1628;--text-primary:#1A202C;--text-secondary:#4A5568;--text-muted:#718096}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-primary);background:var(--dark-bg);color:var(--text-primary);line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:var(--container-padding)}.section{padding:var(--section-padding)}.section-title{font-size:3rem;text-align:center;margin-bottom:1rem;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-subtitle{text-align:center;color:var(--text-secondary);font-size:1.2rem;margin-bottom:4rem}.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:12px 24px;border:none;border-radius:var(--border-radius);font-weight:600;text-decoration:none;transition:var(--transition-normal);cursor:pointer}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--dark-bg)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-medium)}.btn-outline{border:2px solid var(--primary-color);color:var(--primary-color);background:transparent}.btn-outline:hover{background:var(--primary-color);color:var(--dark-bg)}.navbar{position:fixed;top:0;left:0;right:0;background:rgba(10,22,40,0.95);backdrop-filter:blur(10px);z-index:1000;padding:1rem 0;transition:var(--transition-normal)}.navbar.scrolled{background:rgba(10,22,40,0.98);box-shadow:var(--shadow-medium)}.nav-container{display:flex;justify-content:space-between;align-items:center}.nav-logo{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}.nav-menu{display:flex;list-style:none;gap:2rem}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:500;transition:var(--transition-fast);position:relative}.nav-link:hover,.nav-link.active{color:var(--primary-color)}.nav-link::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--primary-color);transition:var(--transition-fast)}.nav-link:hover::after,.nav-link.active::after{width:100%}.theme-toggle{background:none;border:none;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;transition:var(--transition-fast)}.theme-toggle:hover{color:var(--primary-color)}.mobile-menu-toggle{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer}.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden}.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 80%,rgba(0,212,255,0.1) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(0,255,136,0.1) 0%,transparent 50%);z-index:1}.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:2}.hero-text{max-width:600px}.hero-code{font-family:var(--font-mono);color:var(--secondary-color);font-size:0.9rem;margin-bottom:1rem;opacity:0.8}.hero-title{font-size:4rem;font-weight:700;line-height:1.1;margin-bottom:1rem}.hero-title .highlight{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.3rem;color:var(--text-secondary);margin-bottom:1rem}.hero-description{color:var(--text-muted);margin-bottom:2rem;line-height:1.8}.hero-buttons{display:flex;gap:1rem;margin-bottom:2rem}.hero-stats{display:flex;gap:3rem}.stat{text-align:center}.stat-number{font-size:2.5rem;font-weight:700;color:var(--primary-color);display:block}.stat-label{color:var(--text-muted);font-size:0.9rem;text-transform:uppercase;letter-spacing:1px}.hero-image{position:relative}.hero-image img{width:100%;max-width:500px;border-radius:20px;box-shadow:var(--shadow-heavy)}.particles{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.particle{position:absolute;width:4px;height:4px;background:var(--primary-color);border-radius:50%;opacity:0.6;animation:float 6s ease-in-out infinite}.particle:nth-child(2n){background:var(--secondary-color);animation-delay:-2s}.particle:nth-child(3n){animation-delay:-4s}@keyframes float{0%,100%{transform:translateY(0px) rotate(0deg)}50%{transform:translateY(-20px) rotate(180deg)}}.about{background:var(--darker-bg)}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}.about-text{max-width:600px}.mission{background:rgba(0,212,255,0.1);border-left:4px solid var(--primary-color);padding:1.5rem;margin:2rem 0;border-radius:var(--border-radius)}.mission h3{color:var(--primary-color);margin-bottom:1rem}.focus-list{list-style:none;margin:2rem 0}.focus-list li{padding:0.5rem 0;position:relative;padding-left:2rem}.focus-list li::before{content:'▶';position:absolute;left:0;color:var(--secondary-color)}.timeline{position:relative}.timeline::before{content:'';position:absolute;left:20px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--primary-color),var(--secondary-color))}.timeline-item{position:relative;padding-left:60px;margin-bottom:3rem}.timeline-year{position:absolute;left:0;top:0;width:40px;height:40px;background:var(--primary-color);color:var(--dark-bg);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.9rem}.timeline-content h4{color:var(--primary-color);margin-bottom:0.5rem}.timeline-content p{color:var(--text-muted)}.projects{background:var(--dark-bg)}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.project-card{background:var(--darker-bg);border-radius:var(--border-radius);overflow:hidden;transition:var(--transition-normal);border:1px solid rgba(255,255,255,0.1)}.project-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-heavy)}.project-image{position:relative;overflow:hidden;height:200px}.project-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition-normal)}.project-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.8);display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition-normal)}.project-card:hover .project-overlay{opacity:1}.project-links{display:flex;gap:1rem}.project-link{color:var(--primary-color);font-size:1.5rem;transition:var(--transition-fast)}.project-link:hover{color:var(--secondary-color);transform:scale(1.2)}.project-info{padding:1.5rem}.project-title{color:var(--text-primary);margin-bottom:0.5rem}.project-description{color:var(--text-muted);margin-bottom:1rem;line-height:1.6}.project-tech{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:1rem}.tech-tag{background:rgba(0,212,255,0.2);color:var(--primary-color);padding:0.25rem 0.75rem;border-radius:20px;font-size:0.8rem}.project-stats{display:flex;justify-content:space-between;color:var(--text-muted);font-size:0.9rem}.skills{background:var(--darker-bg)}.skills-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:3rem}.skill-tab{background:transparent;border:2px solid rgba(255,255,255,0.2);color:var(--text-secondary);padding:0.75rem 1.5rem;border-radius:var(--border-radius);cursor:pointer;transition:var(--transition-normal)}.skill-tab.active,.skill-tab:hover{border-color:var(--primary-color);color:var(--primary-color)}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.skill-category{background:var(--dark-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,0.1)}.skill-category h3{color:var(--primary-color);margin-bottom:1.5rem;text-align:center}.skill-item{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.skill-name{color:var(--text-primary)}.skill-level{color:var(--secondary-color);font-weight:600}.achievements{background:var(--dark-bg)}.achievements-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.achievement-card{background:var(--darker-bg);padding:2rem;border-radius:var(--border-radius);text-align:center;border:1px solid rgba(255,255,255,0.1);transition:var(--transition-normal)}.achievement-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.achievement-icon{font-size:3rem;color:var(--primary-color);margin-bottom:1rem}.achievement-title{color:var(--text-primary);margin-bottom:1rem}.achievement-description{color:var(--text-muted);line-height:1.6}.blog{background:var(--darker-bg)}.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.blog-card{background:var(--dark-bg);border-radius:var(--border-radius);overflow:hidden;transition:var(--transition-normal);border:1px solid rgba(255,255,255,0.1)}.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-heavy)}.blog-image{height:200px;overflow:hidden}.blog-image img{width:100%;height:100%;object-fit:cover}.blog-content{padding:1.5rem}.blog-meta{display:flex;gap:1rem;margin-bottom:1rem;font-size:0.9rem}.blog-date{color:var(--text-muted)}.blog-category{color:var(--primary-color);background:rgba(0,212,255,0.2);padding:0.25rem 0.75rem;border-radius:20px}.blog-title{color:var(--text-primary);margin-bottom:1rem;line-height:1.4}.blog-excerpt{color:var(--text-muted);line-height:1.6;margin-bottom:1rem}.blog-link{color:var(--primary-color);text-decoration:none;font-weight:600;transition:var(--transition-fast)}.blog-link:hover{color:var(--secondary-color)}.contact{background:var(--dark-bg)}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}.contact-info{max-width:500px}.contact-item{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.contact-icon{color:var(--primary-color);font-size:1.2rem}.contact-text{color:var(--text-secondary)}.social-links{display:flex;gap:1rem;margin-top:2rem}.social-link{display:flex;align-items:center;justify-content:center;width:50px;height:50px;background:rgba(255,255,255,0.1);border-radius:var(--border-radius);color:var(--text-secondary);transition:var(--transition-normal);text-decoration:none}.social-link:hover{background:var(--primary-color);color:var(--dark-bg);transform:translateY(-2px)}.contact-form{background:var(--darker-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,0.1)}.form-group{margin-bottom:1.5rem}.form-label{display:block;color:var(--text-primary);margin-bottom:0.5rem;font-weight:500}.form-input,.form-textarea{width:100%;padding:0.75rem;background:var(--dark-bg);border:2px solid rgba(255,255,255,0.1);border-radius:var(--border-radius);color:var(--text-primary);font-family:inherit;transition:var(--transition-fast)}.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color)}.form-textarea{resize:vertical;min-height:120px}.form-submit{width:100%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--dark-bg);border:none;padding:1rem;border-radius:var(--border-radius);font-weight:600;cursor:pointer;transition:var(--transition-normal)}.form-submit:hover{transform:translateY(-2px);box-shadow:var(--shadow-medium)}.footer{background:var(--darker-bg);padding:2rem 0;text-align:center;border-top:1px solid rgba(255,255,255,0.1)}.footer-nav{display:flex;justify-content:center;gap:2rem;margin-bottom:1rem}.footer-link{color:var(--text-secondary);text-decoration:none;transition:var(--transition-fast)}.footer-link:hover{color:var(--primary-color)}.footer-text{color:var(--text-muted);font-size:0.9rem}@media (max-width:768px){.nav-menu{display:none}.mobile-menu-toggle{display:block}.hero-content{grid-template-columns:1fr;text-align:center}.hero-title{font-size:2.5rem}.hero-stats{justify-content:center}.about-content,.contact-content{grid-template-columns:1fr}.skills-tabs{flex-wrap:wrap}.timeline::before{left:10px}.timeline-item{padding-left:40px}.timeline-year{width:30px;height:30px;font-size:0.8rem}.footer-nav{flex-wrap:wrap}}