#education{padding:80px 0;background:linear-gradient(135deg,#f5f7fa,#e4efe9)}.timeline{position:relative;max-width:1000px;margin:0 auto}.timeline:before{content:"";position:absolute;left:50%;transform:translateX(-50%);width:4px;height:100%;background:linear-gradient(to bottom,var(--secondary-color),var(--accent-color));border-radius:2px}.timeline-item{display:flex;justify-content:flex-end;padding-right:30px;position:relative;margin:40px 0;width:50%;opacity:0;transform:translateX(-50px);transition:all .8s ease}.timeline-item.active{opacity:1;transform:translateX(0)}.timeline-item:nth-child(2n){align-self:flex-end;justify-content:flex-start;padding-left:30px;padding-right:0;left:50%}.timeline-content{background:var(--card-bg);padding:25px;border-radius:15px;box-shadow:var(--shadow);width:100%;position:relative;transition:var(--transition);border-left:5px solid var(--secondary-color)}.timeline-item:nth-child(2n) .timeline-content{border-left:none;border-right:5px solid var(--accent-color)}.timeline-content:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,.15)}.timeline-item:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:var(--secondary-color);top:20px;right:-10px;z-index:10;box-shadow:0 0 0 4px var(--card-bg),0 0 0 6px var(--secondary-color)}.timeline-item:nth-child(2n):before{left:-10px;right:auto;background:var(--accent-color);box-shadow:0 0 0 4px var(--card-bg),0 0 0 6px var(--accent-color)}.timeline-date{font-weight:600;color:var(--secondary-color);margin-bottom:10px;display:inline-block;background:rgba(52,152,219,.1);border-radius:20px;font-size:.9rem;position:relative;padding:5px 15px 5px 35px}.timeline-item:nth-child(2n) .timeline-date{padding-left:35px}.timeline-content h3{margin-bottom:10px;font-size:1.4rem;color:var(--primary-color)}.timeline-content p{margin-bottom:8px;color:#555}.timeline-content strong{color:var(--primary-color)}.timeline-date:before{content:"\f073";font-family:Font Awesome\ 5 Free;font-weight:900;position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:.8rem}.timeline-item:nth-child(2n) .timeline-date{color:var(--accent-color);background:rgba(231,76,60,.1)}.timeline-item:nth-child(2n) .timeline-date:before{content:"\f073"}.education-icon{position:absolute;top:20px;right:25px;font-size:1.5rem;color:var(--secondary-color);opacity:.7}.timeline-item:nth-child(2n) .education-icon{right:auto;left:400px;color:var(--accent-color)}#research-interests{padding:80px 0;background:linear-gradient(135deg,#f8f9fa,#fff)}.skills-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px;justify-content:center}.skill-tag{background:linear-gradient(135deg,var(--secondary-color),var(--accent-color));color:#fff;padding:10px 20px;border-radius:25px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease;opacity:0;transform:scale(.8) translateY(20px);box-shadow:0 4px 15px rgba(52,152,219,.2);position:relative;overflow:hidden}.skill-tag:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.3),transparent);transition:left .5s ease}.skill-tag:hover:before{left:100%}.skill-tag:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 8px 25px rgba(52,152,219,.3)}.skill-tag.animate{opacity:1;transform:scale(1) translateY(0)}#research{background:linear-gradient(135deg,#fefefe,#f9f9f9);padding:80px 0}.research-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:30px;gap:30px}.research-card{background:var(--card-bg);border-radius:10px;padding:30px;box-shadow:var(--shadow);transition:var(--transition);position:relative;overflow:hidden}.research-card:before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;background:var(--secondary-color)}.research-card:hover{transform:translateY(-10px);box-shadow:0 10px 20px rgba(0,0,0,.1)}.research-card h3{margin-bottom:15px;color:var(--primary-color)}.research-card .status{display:inline-block;padding:5px 10px;border-radius:5px;font-size:.8rem;font-weight:600;margin-bottom:15px}.status.published{background:#e8f6ef;color:#27ae60}.status.submitted{background:#fff9e6;color:#f39c12}.status.ongoing{background:#e6f2ff;color:#3498db}@media (max-width:992px){.timeline:before{left:30px!important;transform:none!important}.timeline-item{width:100%!important;padding-right:0!important;opacity:1!important;transform:none!important}.timeline-item,.timeline-item:nth-child(2n){padding-left:70px!important;justify-content:flex-start!important;left:0!important}.timeline-item .timeline-content:before{border-top:10px solid transparent!important;border-bottom:10px solid transparent!important}.timeline-item .timeline-content:before,.timeline-item:nth-child(2n) .timeline-content:before{left:-10px!important;right:auto!important;border-left:none!important;border-right:10px solid var(--card-bg)!important}.timeline-item:before,.timeline-item:nth-child(2n):before{left:20px!important;right:auto!important}.education-icon{top:20px!important}.education-icon,.timeline-item:nth-child(2n) .education-icon{right:auto!important;left:25px!important}.timeline-content:hover{transform:none!important}}@media (max-width:768px){.timeline-content{padding:20px!important}.timeline-content h3{font-size:1.2rem!important}.timeline:before{left:25px!important}.timeline-item,.timeline-item:nth-child(2n){padding-left:60px!important}.timeline-item:before{left:15px!important;width:18px!important;height:18px!important}.education-icon{left:20px!important;font-size:1.3rem!important}.research-grid{grid-template-columns:1fr;gap:20px}}@media (max-width:576px){.timeline-content h3{font-size:1.2rem!important}.timeline:before{left:20px!important}.timeline-item{margin:30px 0!important}.timeline-item,.timeline-item:nth-child(2n){padding-left:50px!important}.timeline-item:before{left:10px!important;width:16px!important;height:16px!important}.education-icon{left:15px!important;font-size:1.2rem!important}.timeline-content{padding:15px!important}.timeline-date{font-size:.8rem!important;padding:4px 12px 4px 30px!important}.timeline-date:before{left:10px!important;font-size:.7rem!important}.skills-list{gap:8px}.skill-tag{padding:8px 16px;font-size:.85rem}}@media (max-width:768px){.skills-list{gap:8px;justify-content:center;flex-wrap:wrap}.skill-tag{padding:8px 16px;font-size:.8rem;min-width:auto;flex:1 1;min-width:120px;text-align:center;max-width:45%}}@media (max-width:480px){.skills-list{gap:6px}.skill-tag{padding:6px 12px;font-size:.75rem;min-width:100px;max-width:48%}}@media (max-width:768px){#research-interests .skills-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.skill-tag{padding:8px 16px;font-size:14px}.skill-tag,.skill-tag.animate{opacity:1!important;transform:none!important}}@media (max-width:480px){.skill-tag{transform:none!important;animation:none!important}#research-interests .skills-list,.skill-tag{opacity:1!important}}.research-summary-card{background:#eceff7;padding:25px;border-radius:14px;margin-bottom:40px;box-shadow:0 10px 30px rgba(0,0,0,.25)}.research-summary-card h3{text-align:center;margin-bottom:20px;font-size:22px;color:#2c70b6}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:20px;gap:20px;text-align:center}.summary-grid h4{font-size:14px;color:#2c70b6;margin-bottom:5px}.summary-grid p{font-size:22px;font-weight:600;color:#3a5662}.research-card-summary{background:var(--card-bg);border-radius:10px;padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:var(--transition)}.research-card-summary:before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;background:var(--accent-color)}.research-card-summary:after{content:"";position:absolute;top:0;right:0;width:5px;height:100%;background:var(--secondary-color)}.research-card-summary h3{margin-bottom:15px;color:var(--primary-color)}.research-grid-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:30px;gap:30px}.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background:var(--secondary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;opacity:0;visibility:hidden;transition:var(--transition);z-index:999;border:none;outline:none}.back-to-top.active{opacity:1;visibility:visible}.back-to-top:hover{background:var(--accent-color);transform:translateY(-5px)}nav{position:fixed;top:0;left:0;width:100%;background:hsla(0,0%,100%,.95);box-shadow:var(--shadow);z-index:1000;transition:var(--transition)}nav.scrolled{background:hsla(0,0%,100%,.98);padding:10px 0}.nav-container{justify-content:space-between;padding:15px 0;gap:5px}.logo{font-size:1.8rem;font-weight:700;color:var(--primary-color);text-decoration:none;display:flex;align-items:center;gap:50px}.logo span{color:var(--secondary-color)}.nav-links{display:flex;list-style:none}.nav-links li{margin-left:30px}.nav-links a{color:var(--text-color);font-weight:500;position:relative;text-decoration:none}.nav-links a:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--secondary-color);transition:var(--transition)}.nav-links a:hover:after{width:100%}.menu-toggle{display:none;font-size:1.5rem;cursor:pointer}.nav-container{display:flex;align-items:center;gap:15px}.nav-container img{border-radius:50%;object-fit:cover;vertical-align:middle}@media (max-width:768px){.menu-toggle{display:block}.nav-links{position:fixed;top:70px;left:-100%;width:100%;height:calc(100vh - 70px);background:#fff;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:50px;transition:var(--transition)}.nav-links.active{left:0}.nav-links li{margin:15px 0}}@media (min-width:769px) and (max-width:1200px){.nav-links li{margin-left:20px}.logo{font-size:1.5rem;gap:30px}.nav-container{padding:12px 0}}@media (min-width:769px) and (max-width:992px){.nav-links{display:flex;flex-wrap:wrap;justify-content:center}.nav-links li{margin-left:15px;margin-bottom:5px}.nav-links a{font-size:.9rem}.logo{font-size:1.4rem;gap:20px}.nav-container{padding:10px 0;gap:10px}.nav-container img{width:40px;height:40px}}@media (min-width:769px) and (max-width:850px){.nav-links{display:none}.menu-toggle{display:block}.nav-links.active{position:fixed;top:70px;left:0;width:100%;height:calc(100vh - 70px);background:#fff;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:50px;transition:var(--transition);display:flex}.nav-links li{margin:15px 0}}@media (max-width:768px){.nav-container{padding:12px 0}.logo{font-size:1.5rem;gap:20px}.nav-container img{width:40px;height:40px}}@media (max-width:480px){.logo{font-size:1.3rem;gap:15px}.nav-container img{width:35px;height:35px}.menu-toggle{font-size:1.3rem}}footer{background:var(--primary-color);color:#fff;text-align:center;margin:0!important;padding:50px 0 20px!important}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:30px;gap:30px;margin-bottom:40px}.footer-contact li a{color:#fff;text-decoration:none}.footer-section h3{color:#fff;margin-bottom:20px;position:relative;display:inline-block}.footer-section h3:after{content:"";position:absolute;bottom:-5px;left:0;width:50px;height:2px;background:var(--secondary-color)}.footer-links-column{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.footer-links{list-style:none;padding:0}.footer-links li{margin-bottom:10px}.footer-links a{color:hsla(0,0%,100%,.7);transition:var(--transition);text-decoration:none}.footer-links a:hover{color:#fff;padding-left:5px}.copyright{padding-top:20px;border-top:1px solid hsla(0,0%,100%,.1);font-size:.9rem;color:hsla(0,0%,100%,.7)}.social-links{gap:15px;margin-top:30px}.social-link,.social-links{display:flex;justify-content:center}.social-link{align-items:center;width:40px;height:40px;background:var(--secondary-color);border-radius:50%;color:#fff;transition:var(--transition);font-size:1.2rem;text-decoration:none}.social-link:hover{background:var(--accent-color);transform:translateY(-5px);color:#fff}.footer-contact li{display:flex;align-items:center;gap:10px;margin-bottom:12px}.footer-contact li i{width:20px;color:var(--secondary-color)}@media (max-width:768px){.footer-content{grid-template-columns:1fr;gap:30px;text-align:center}.footer-section h3:after{left:50%;transform:translateX(-50%)}.social-links{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:8px;gap:8px;max-width:200px;margin:20px auto 0}.social-link{width:50px;height:50px;border-radius:50%;margin:0 auto}.footer-contact li{justify-content:center}}@media (max-width:480px){footer{padding:40px 0 20px!important}.footer-content{gap:25px}.footer-section h3{font-size:1.3rem}.copyright{font-size:.8rem}}