:root{--primary: #0D2B4C;--primary-light: #3B6FB6;--secondary: #FFC107;--success: #2E7D32;--danger: #D6453D;--text: #2C3E50;--text-light: #90A4AE;--bg: #FFFFFF;--bg-alt: #F1F6FB;--shadow: rgba(0, 0, 0, .1);--border: #CFD8DC}.dark-mode{--primary: #4A90E2;--primary-light: #64A8F5;--secondary: #FFC107;--success: #4CAF50;--danger: #EF5350;--text: #E8EAED;--text-light: #9CA3AF;--bg: #0F1419;--bg-alt: #1C2128;--shadow: rgba(0, 0, 0, .5);--border: #30363D}.dark-mode body{background:var(--bg);color:var(--text)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;transition:background-color .3s ease,color .3s ease}body{font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text);line-height:1.6;overflow-x:hidden;transition:background-color .3s ease,color .3s ease;background:var(--bg)}.navbar{position:fixed;top:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 10px 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p{font-size:1.1rem;line-height:1.8;color:var(--text)}.portfolio-subtitle{font-size:1.5rem;color:var(--primary);margin-bottom:1.5rem;display:flex;align-items:center;gap:.5rem}.timeline{position:relative;padding-left:2rem}.timeline:before{content:"";position:absolute;left:7px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--primary),var(--secondary))}.timeline-item{position:relative;margin-bottom:1.5rem;padding-left:1.5rem}.timeline-marker{position:absolute;left:-2rem;top:.5rem;width:16px;height:16px;background:var(--primary);border-radius:50%;border:3px solid var(--bg);box-shadow:0 0 0 3px var(--primary-light)}.timeline-content{background:var(--bg);padding:1.25rem;border-radius:10px;box-shadow:0 2px 10px var(--shadow);transition:transform .3s ease,box-shadow .3s ease}.timeline-content:hover{transform:translate(5px);box-shadow:0 4px 20px var(--shadow)}.timeline-year{display:inline-block;background:var(--primary);color:#fff;padding:.25rem .75rem;border-radius:20px;font-size:.85rem;font-weight:600;margin-bottom:.5rem}.timeline-content h4{color:var(--text);font-size:1.1rem;margin-bottom:.25rem}.timeline-content p{color:var(--text-light);font-size:.9rem}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.project-card{background:var(--bg);border-radius:12px;padding:1.75rem;box-shadow:0 4px 15px var(--shadow);border-left:5px solid var(--primary);transition:transform .3s ease,box-shadow .3s ease}.project-card:hover{transform:translateY(-5px);box-shadow:0 8px 30px var(--shadow)}.project-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.project-icon{font-size:2rem}.project-header h4{font-size:1.4rem;color:var(--text)}.project-description{color:var(--text-light);line-height:1.7;margin-bottom:1.25rem}.project-tech{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}.tech-badge{background:var(--bg-alt);color:var(--primary);padding:.35rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500;border:1px solid var(--border)}.project-links{display:flex;gap:1rem;flex-wrap:wrap}.project-link{color:var(--primary);text-decoration:none;font-weight:600;font-size:.95rem;transition:color .3s ease}.project-link:hover{color:var(--secondary)}.project-link-icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;background:var(--bg-alt);color:var(--text);transition:all .3s ease;border:1px solid var(--border)}.project-link-icon:hover{background:var(--primary);color:#fff;transform:translateY(-3px);box-shadow:0 4px 12px var(--shadow)}.project-link-icon svg{width:28px;height:28px}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.skill-category{background:var(--bg);padding:1.5rem;border-radius:10px;box-shadow:0 2px 10px var(--shadow);text-align:center;transition:transform .3s ease}.skill-category:hover{transform:translateY(-3px)}.skill-category h5{color:var(--primary);font-size:1.1rem;margin-bottom:.75rem}.skill-category p{color:var(--text-light);font-size:.9rem;line-height:1.6}@media (max-width: 768px){.portfolio-section{padding:3rem 1rem}.portfolio-bio{padding:1.5rem}.portfolio-bio p{font-size:1rem}.portfolio-subtitle{font-size:1.25rem}.timeline{padding-left:1.5rem}.timeline-marker{left:-1.5rem;width:12px;height:12px}.projects-grid{grid-template-columns:1fr}.project-card{padding:1.25rem}.skills-grid{grid-template-columns:1fr 1fr}}@media (max-width: 480px){.skills-grid{grid-template-columns:1fr}}