:root{--primary-blue:#2a5bd7;--secondary-blue:#4285f4;--accent-blue:#6abcff;--text-color:#333333;--light-bg:#f8f9fa;--white:#ffffff;--card-shadow:0 4px 20px rgba(0, 0, 0, 0.08);--transition:all 0.3s ease;--gradient-blue:linear-gradient(135deg, #4a6fe3 0%, #6d8eff 100%);--card-radius:8px}body{font-family:inter,-apple-system,BlinkMacSystemFont,segoe ui,Roboto,Helvetica,Arial,sans-serif;color:var(--text-color);line-height:1.6}.nav-wrapper{background-color:var(--white);box-shadow:0 2px 10px rgba(0,0,0,5%);position:sticky;top:0;z-index:1000}.container{width:90%;max-width:1200px;margin:0 auto;padding:0 15px}.site-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0}.site-title{font-size:1.5rem;font-weight:700;color:var(--text-color);text-decoration:none;white-space:nowrap}.mobile-menu-toggle{display:none;background:0 0;border:none;cursor:pointer;padding:0;width:30px;height:24px;position:relative;z-index:1010}.bar{display:block;width:100%;height:3px;background-color:var(--text-color);margin:5px 0;transition:var(--transition);border-radius:3px}.main-navigation ul{display:flex;list-style:none;margin:0;padding:0}.main-navigation li{margin-left:1.5rem}.main-navigation a{color:var(--text-color);font-weight:500;text-decoration:none;position:relative;padding-bottom:5px}.main-navigation a:hover,.main-navigation a.active{color:var(--primary-blue)}.main-navigation a.active::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:2px;background-color:var(--primary-blue)}@media screen and (max-width:768px){.mobile-menu-toggle{display:block}.main-navigation{position:fixed;top:0;right:-100%;width:80%;max-width:300px;height:100vh;background-color:var(--white);box-shadow:-5px 0 15px rgba(0,0,0,.1);padding:80px 20px 30px;transition:right .3s ease;z-index:1000;overflow-y:auto}.main-navigation.active{right:0}.main-navigation ul{flex-direction:column}.main-navigation li{margin:0;padding:15px 0;border-bottom:1px solid rgba(0,0,0,5%)}.main-navigation li:last-child{border-bottom:none}.mobile-menu-toggle.active .bar:nth-child(1){transform:rotate(45deg)translate(5px,6px)}.mobile-menu-toggle.active .bar:nth-child(2){opacity:0}.mobile-menu-toggle.active .bar:nth-child(3){transform:rotate(-45deg)translate(5px,-6px)}.nav-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);z-index:999;opacity:0;visibility:hidden;transition:all .3s ease}.nav-overlay.active{opacity:1;visibility:visible}}.page-header{background:var(--gradient-blue);color:var(--white);padding:4rem 0;text-align:center;margin-bottom:3rem}.page-header h1{font-size:2.5rem;margin-bottom:1rem;font-weight:700}.page-header p{font-size:1.2rem;max-width:700px;margin:0 auto;opacity:.9}.card{background:var(--white);border-radius:var(--card-radius);box-shadow:var(--card-shadow);transition:var(--transition);overflow:hidden;margin-bottom:2rem}.card:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.12)}.card-body{padding:1.5rem}.research-card{text-align:center;padding:2rem}.research-icon{width:80px;height:80px;background:rgba(74,111,227,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem}.research-card h4{margin-bottom:1rem;font-weight:600}.team-member{text-align:center}.team-member img{width:180px;height:180px;border-radius:50%;object-fit:cover;margin-bottom:1.5rem;border:3px solid var(--white);box-shadow:var(--card-shadow)}.team-member h4{margin-bottom:.5rem;font-weight:600}.team-member .role{color:var(--primary-blue);font-weight:500;margin-bottom:1rem;display:block}.stats-counter{text-align:center;margin-bottom:3rem;background:var(--white);border-radius:var(--card-radius);box-shadow:var(--card-shadow);padding:2rem 1.5rem;transition:var(--transition)}.stats-counter:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}.stats-number{font-size:3rem;font-weight:700;color:var(--accent-blue);display:block;margin-bottom:.5rem;line-height:1.2}.stats-label{font-size:1rem;color:var(--text-color);opacity:.8}.publication-card{padding:1.5rem;background:var(--white);border-radius:var(--card-radius);box-shadow:var(--card-shadow);margin-bottom:1.5rem;transition:var(--transition)}.publication-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.1)}.publication-card h4{color:var(--text-color);margin-bottom:1rem;line-height:1.4}.publication-card .text-gray-600{color:var(--text-color);opacity:.7;font-style:italic}.filter-pills{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem}button[data-filter]{background:var(--light-bg);border:none;padding:.5rem 1rem;border-radius:9999px;font-size:.875rem;color:var(--text-color);transition:var(--transition);cursor:pointer}button[data-filter]:hover,button[data-filter].active{background:var(--primary-blue);color:var(--white)}.year-section h2{color:var(--text-color);font-size:1.5rem;font-weight:700;padding-bottom:.75rem;border-bottom:2px solid var(--light-bg);margin-bottom:1.5rem}.author-symbol{color:var(--accent-blue);cursor:help;position:relative;font-weight:500}.author-symbol:hover::after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);background:var(--text-color);color:var(--white);padding:.5rem 1rem;border-radius:4px;font-size:.875rem;white-space:nowrap;z-index:10}.publication-badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:500;background:rgba(74,111,227,.1);color:var(--primary-blue);margin-right:.5rem;margin-bottom:.5rem}@media(max-width:768px){.stats-counter{padding:1.5rem 1rem}.stats-number{font-size:2.5rem}.publication-card{padding:1.25rem}button[data-filter]{padding:.4rem .8rem;font-size:.8125rem}}.conference-item{padding:2rem;margin-bottom:2rem;position:relative}.conference-item h3{margin-bottom:1rem}.conference-meta{display:flex;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap}.conference-meta span{margin-right:2rem;display:flex;align-items:center}.conference-meta i{margin-right:.5rem;color:var(--primary-blue)}.award-item{display:flex;align-items:center;margin-bottom:2rem}.award-icon{flex:0 0 60px;height:60px;background:var(--gradient-blue);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:1.5rem;color:var(--white);font-size:1.5rem}.award-details{flex:1}.award-year{color:var(--primary-blue);font-weight:600;margin-bottom:.25rem}.contact-card{text-align:center;padding:2rem}.contact-icon{font-size:2rem;color:var(--primary-blue);margin-bottom:1rem}.contact-form{max-width:600px;margin:0 auto;padding:2rem;background:var(--white);border-radius:var(--card-radius);box-shadow:var(--card-shadow)}.form-group{margin-bottom:1.5rem}.form-control{width:100%;padding:.75rem 1rem;font-size:1rem;border:1px solid #e1e5ea;border-radius:4px;transition:var(--transition)}.form-control:focus{border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(74,111,227,.2);outline:none}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-weight:500;text-align:center;white-space:nowrap;vertical-align:middle;cursor:pointer;border:1px solid transparent;border-radius:4px;text-decoration:none;transition:var(--transition)}.btn-primary{background:var(--gradient-blue);color:var(--white)}.btn-primary:hover{background:linear-gradient(135deg,#3a5bd3 0%,#5d7ef9 100%);transform:translateY(-2px)}.btn-outline{background:0 0;color:var(--primary-blue);border-color:var(--primary-blue)}.btn-outline:hover{background:var(--primary-blue);color:var(--white)}@media(max-width:768px){.page-header{padding:3rem 0}.page-header h1{font-size:2rem}.team-member img{width:140px;height:140px}.conference-meta span{margin-bottom:.5rem}}