@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--bg-card:#fff;--bg-card-hover:#f8fafc;--accent-primary:#2563eb;--accent-secondary:#3b82f6;--accent-gradient:linear-gradient(135deg,#2563eb 0%,#7c3aed 100%);--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#64748b;--border-subtle:#0000000f;--border-light:#0000001a;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 20px #00000014;--shadow-lg:0 10px 40px #0000001a;--container-max:1100px;--card-radius:14px;--btn-radius:8px;--transition-fast:.2s ease;--transition-medium:.3s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{background:var(--bg-secondary);color:var(--text-primary);min-height:100vh;font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.3}h1{letter-spacing:-.02em;font-size:clamp(1.8rem,5vw,2.5rem);font-weight:800}h2{margin-bottom:16px;font-size:clamp(1.4rem,4vw,1.75rem);font-weight:700;display:inline-block;position:relative}h2:after{content:"";background:var(--accent-gradient);border-radius:2px;width:45px;height:3px;position:absolute;bottom:-6px;left:0}h3{font-size:1.1rem;font-weight:600}h4{font-size:1rem;font-weight:600}p{color:var(--text-secondary);line-height:1.7}a{color:var(--accent-primary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-secondary)}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 20px}.site-header{z-index:1000;-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border-subtle);box-shadow:var(--shadow-sm);background:#fffffff2;padding:12px 0;position:fixed;top:0;left:0;right:0}.header-grid{justify-content:space-between;align-items:center;gap:16px;display:flex}.header-right{align-items:center;gap:10px;display:flex}.main-nav ul{align-items:center;gap:4px;list-style:none;display:flex}.main-nav a{color:var(--text-secondary);transition:all var(--transition-fast);border-radius:8px;padding:8px 14px;font-size:.9rem;font-weight:500}.main-nav a:hover{color:var(--accent-primary);background:var(--bg-tertiary)}#nav-toggle{background:var(--bg-tertiary);border:1px solid var(--border-light);color:var(--text-primary);cursor:pointer;border-radius:8px;padding:8px 12px;font-size:1.1rem;display:none}#nav-toggle:hover{background:var(--bg-card-hover);box-shadow:none;transform:none}@media (max-width:900px){#nav-toggle{justify-content:center;align-items:center;display:flex}.main-nav{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--card-radius);box-shadow:var(--shadow-lg);padding:12px;animation:.25s slideDown;display:none;position:absolute;top:calc(100% + 8px);left:16px;right:16px}.main-nav.open{display:block}.main-nav ul{flex-direction:column;gap:2px}.main-nav li{width:100%}.main-nav a{text-align:center;padding:12px 14px;font-size:.95rem;display:block}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.view-project-btn{color:#fff;background:var(--accent-primary);border-radius:var(--btn-radius);cursor:pointer;transition:all var(--transition-fast);border:none;justify-content:center;align-items:center;gap:6px;padding:10px 20px;font-family:inherit;font-size:.85rem;font-weight:600;text-decoration:none;display:inline-flex;box-shadow:0 2px 8px #2563eb40}.view-project-btn:hover{background:var(--accent-secondary);color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.view-project-btn.secondary{background:var(--bg-tertiary);color:var(--accent-primary);border:1px solid var(--border-light);box-shadow:none}.view-project-btn.secondary:hover{background:var(--bg-card-hover);border-color:var(--accent-primary)}button{background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border-subtle);cursor:pointer;transition:all var(--transition-fast);border-radius:8px;padding:7px 14px;font-family:inherit;font-size:.8rem;font-weight:500}button:hover{background:var(--bg-tertiary);color:var(--text-primary);box-shadow:none;transform:none}button.filter-active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}main.container{padding-top:85px;padding-bottom:40px}.about-grid{grid-template-columns:auto 1fr;align-items:center;gap:36px;display:grid}.about-left{justify-content:center;display:flex}.about-photo{object-fit:cover;object-position:center 20%;border:3px solid var(--bg-card);width:170px;height:170px;box-shadow:var(--shadow-lg);transition:all var(--transition-medium);border-radius:14px}.about-photo:hover{transform:scale(1.02)}.about-right h1{color:var(--text-primary);margin-bottom:4px}.subtitle{color:var(--text-muted);margin-bottom:16px;font-size:1rem;font-weight:500}@media (max-width:768px){.about-grid{text-align:center;grid-template-columns:1fr;gap:20px}.about-photo{width:140px;height:140px;margin:0 auto}.about-right h1{font-size:1.5rem}.subtitle{font-size:.9rem}}section{padding:45px 0}section+section{border-top:1px solid var(--border-subtle)}.projects-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:20px;display:grid}.project-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--card-radius);transition:all var(--transition-medium);box-shadow:var(--shadow-sm);flex-direction:column;padding:0;display:flex;overflow:hidden}.project-card:hover{border-color:var(--border-light);box-shadow:var(--shadow-md);transform:translateY(-3px)}.project-card img{object-fit:cover;border-bottom:1px solid var(--border-subtle);width:100%;height:150px}.project-card h3{color:var(--text-primary);margin:0 0 4px;font-size:1.05rem}.project-card p{color:var(--text-muted);margin:8px 0 0;font-size:.85rem;line-height:1.5}input[type=search],input[placeholder*=Search]{background:var(--bg-card);border:1px solid var(--border-subtle);color:var(--text-primary);min-width:180px;transition:all var(--transition-fast);border-radius:8px;padding:8px 14px;font-family:inherit;font-size:.85rem}input[type=search]:focus,input[placeholder*=Search]:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 3px #2563eb1a}input::placeholder{color:var(--text-muted)}@media (max-width:768px){.projects-grid{grid-template-columns:1fr}.project-card img{height:140px}input[type=search],input[placeholder*=Search]{width:100%;min-width:unset;margin-top:10px}}.grid-2{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--card-radius);transition:all var(--transition-medium);box-shadow:var(--shadow-sm);padding:20px}.card:hover{border-color:var(--border-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}.card h3,.card h4{color:var(--text-primary);margin-bottom:8px}.card p{color:var(--text-secondary);font-size:.9rem;line-height:1.6}.card ul{color:var(--text-secondary);padding-left:18px}.card li{margin-bottom:5px;font-size:.9rem}.muted{color:var(--text-muted)!important}@media (max-width:768px){.grid-2{grid-template-columns:1fr;gap:14px}.card{padding:16px}}.publications-section{margin-top:18px}.publications-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;display:grid}.publication-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--card-radius);transition:all var(--transition-medium);box-shadow:var(--shadow-sm);padding:20px}.publication-card:hover{border-color:var(--border-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}.publication-card h4{color:var(--text-primary);margin-bottom:8px;font-size:1rem;line-height:1.4}.publication-card p{color:var(--text-muted);margin-bottom:12px;font-size:.85rem}.view-btn{color:#fff;background:var(--accent-primary);transition:all var(--transition-fast);border-radius:8px;align-items:center;gap:5px;margin-top:6px;margin-right:6px;padding:8px 14px;font-size:.8rem;font-weight:500;text-decoration:none;display:inline-flex}.view-btn:hover{background:var(--accent-secondary);color:#fff;transform:translateY(-1px)}.view-btn.secondary{background:var(--bg-tertiary);color:var(--accent-primary);border:1px solid var(--border-light)}@media (max-width:768px){.publications-grid{grid-template-columns:1fr}.view-btn{text-align:center;margin-bottom:8px;margin-right:0;display:block}}#contact a{color:var(--accent-primary);font-weight:500}footer{text-align:center;border-top:1px solid var(--border-subtle);background:var(--bg-card);color:var(--text-muted);padding:28px 20px;font-size:.85rem}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}::selection{background:var(--accent-primary);color:#fff}