:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--text-primary: #333333;--text-secondary: #6c757d;--accent-color: #0066ff;--accent-hover: #0052cc;--border-color: #e0e0e0;--card-bg: #ffffff;--shadow: rgba(0, 0, 0, .1)}.dark-mode{--bg-primary: #121212;--bg-secondary: #1e1e1e;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--accent-color: #3d8cff;--accent-hover: #5a9cff;--border-color: #2c2c2c;--card-bg: #1e1e1e;--shadow: rgba(0, 0, 0, .4)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background-color .3s,color .3s}a{color:var(--accent-color);text-decoration:none;transition:color .3s}a:hover{color:var(--accent-hover)}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}section{padding:5rem 0}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;line-height:1.2}button{cursor:pointer;font-family:inherit}.btn{display:inline-block;padding:.8rem 1.5rem;border-radius:.4rem;font-weight:600;transition:all .3s;border:none;outline:none}.btn-primary{background-color:var(--accent-color);color:#fff}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-2px)}.btn-secondary{background-color:transparent;border:2px solid var(--accent-color);color:var(--accent-color)}.btn-secondary:hover{background-color:#0066ff1a;transform:translateY(-2px)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .6s ease-out forwards}img{max-width:100%;height:auto}.navbar{position:fixed;top:0;left:0;width:100%;padding:1.5rem 0;z-index:1000;transition:all .3s ease}.navbar.scrolled{background-color:var(--bg-primary);box-shadow:0 5px 15px #0000001a;padding:1rem 0}.navbar-container{display:flex;align-items:center;justify-content:space-between}.logo{font-size:1.8rem;font-weight:800;color:var(--text-primary);text-decoration:none;transition:color .3s}.logo-dot{color:var(--accent-color)}.nav-links ul{display:flex;list-style:none;gap:2rem}.nav-links a{color:var(--text-primary);font-weight:500;position:relative;transition:color .3s}.nav-links a:hover{color:var(--accent-color)}.nav-links a:after{content:"";position:absolute;width:0;height:2px;bottom:-5px;left:0;background-color:var(--accent-color);transition:width .3s ease}.nav-links a:hover:after{width:100%}.navbar-right{display:flex;align-items:center;gap:1.5rem}.theme-toggle{background:none;border:none;color:var(--text-primary);font-size:1.2rem;cursor:pointer;padding:.5rem;border-radius:50%;transition:all .3s}.theme-toggle:hover{background-color:#0000000d;color:var(--accent-color)}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;width:30px;height:24px;position:relative;z-index:10}.mobile-menu-btn span{display:block;width:100%;height:2px;background-color:var(--text-primary);position:absolute;transition:all .3s ease}.mobile-menu-btn span:nth-child(1){top:0}.mobile-menu-btn span:nth-child(2){top:50%;transform:translateY(-50%)}.mobile-menu-btn span:nth-child(3){bottom:0}.mobile-menu-btn.active span:nth-child(1){transform:rotate(45deg);top:50%}.mobile-menu-btn.active span:nth-child(2){opacity:0}.mobile-menu-btn.active span:nth-child(3){transform:rotate(-45deg);bottom:50%}@media (max-width: 768px){.nav-links{position:fixed;top:0;right:-100%;width:70%;height:100vh;background-color:var(--bg-primary);box-shadow:-5px 0 15px #0000001a;transition:right .3s ease;display:flex;align-items:center;justify-content:center}.nav-links.active{right:0}.nav-links ul{flex-direction:column;align-items:center;padding:2rem}.mobile-menu-btn{display:block}}.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden}.hero-container{display:flex;align-items:center;justify-content:space-between;gap:2rem}.hero-content{flex:1;animation:fadeIn .8s ease-out forwards}.hero-title{font-size:3.5rem;font-weight:800;margin-bottom:1rem}.hero-subtitle{font-size:2rem;color:var(--accent-color);margin-bottom:1.5rem}.highlight{color:var(--accent-color);position:relative;display:inline-block}.highlight:after{content:"";position:absolute;width:100%;height:.3rem;background-color:var(--accent-color);left:0;bottom:.2rem;z-index:-1;opacity:.3}.hero-description{font-size:1.2rem;color:var(--text-secondary);margin-bottom:2rem;max-width:600px}.hero-cta{display:flex;gap:1rem;margin-bottom:2rem}.hero-social{display:flex;gap:1.5rem;font-size:1.5rem}.hero-social a{color:var(--text-secondary);transition:all .3s}.hero-social a:hover{color:var(--accent-color);transform:translateY(-3px)}.leetcode-icon{width:24px;height:24px;filter:brightness(.8);transition:transform .3s,filter .3s}.leetcode-icon:hover{transform:translateY(-3px);filter:brightness(1)}.hero-image{flex:1;display:flex;justify-content:center;position:relative;animation:fadeIn 1s ease-out forwards;animation-delay:.2s;opacity:0}.profile-image{width:350px;height:350px;object-fit:cover;border-radius:50%;border:5px solid var(--accent-color);z-index:2;box-shadow:0 10px 25px #06f3;transition:all .3s}.dark-border{border-color:var(--accent-color)}.hero-shape{position:absolute;width:380px;height:380px;border-radius:50%;background:linear-gradient(45deg,var(--accent-color),#00c6ff);filter:blur(15px);opacity:.15;z-index:1}@media (max-width: 992px){.hero-container{flex-direction:column-reverse;text-align:center}.hero-content{display:flex;flex-direction:column;align-items:center}.hero-title{font-size:2.8rem}.hero-subtitle{font-size:1.6rem}.hero-image{margin-bottom:2rem}.profile-image{width:250px;height:250px}.hero-shape{width:280px;height:280px}}.about{background-color:var(--bg-primary)}.about-content{display:flex;gap:3rem;align-items:center}.about-image{flex:1;position:relative;display:flex;justify-content:center}.about-img-container{width:350px;height:350px;border-radius:20px;overflow:hidden;position:relative;z-index:2;box-shadow:0 10px 25px #0000001a}.about-img-container img{width:100%;height:100%;object-fit:cover}.about-shape{position:absolute;width:350px;height:350px;border-radius:20px;background:linear-gradient(45deg,var(--accent-color),#00c6ff);transform:rotate(-5deg);z-index:1}.about-text{flex:1.5}.about-text h3{font-size:2rem;margin-bottom:.5rem;color:var(--text-primary)}.about-text h4{font-size:1.3rem;color:var(--accent-color);margin-bottom:1.5rem}.about-bio{color:var(--text-secondary);margin-bottom:2rem;line-height:1.8;white-space:pre-line}.about-details{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:2rem}.about-detail h5{font-size:.9rem;color:var(--text-secondary);margin-bottom:.3rem}.about-detail p{font-weight:500;color:var(--text-primary)}.about-actions{display:flex;gap:1rem}@media (max-width: 992px){.about-content{flex-direction:column}.about-image{margin-bottom:2rem}.about-img-container,.about-shape{width:280px;height:280px}}@media (max-width: 576px){.about-details{grid-template-columns:1fr}.about-actions{flex-direction:column}.about-actions .btn{width:100%}}.skills{background-color:var(--bg-primary);padding:4rem 1rem}.section-title{text-align:center;font-size:2.5rem;color:var(--text-primary);margin-bottom:.5rem}.section-subtitle{text-align:center;font-size:1.2rem;color:var(--text-secondary);margin-bottom:3rem}.skills-content{max-width:900px;margin:0 auto 3rem;background-color:var(--card-bg);padding:2rem;border-radius:1rem;box-shadow:0 8px 24px #00000012}.skills-category-title{text-align:center;font-size:1.8rem;color:var(--accent-color);margin-bottom:2rem;position:relative}.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.skill-item{background-color:var(--bg-secondary);padding:1rem 1.2rem;border-radius:.8rem;border:1px solid var(--border-color);transition:box-shadow .3s ease}.skill-item:hover{box-shadow:0 4px 20px #00000014}.skill-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:.3rem}.skill-name{font-weight:600;color:var(--text-primary);font-size:1rem}.skill-level{font-size:.85rem;font-weight:500;padding:.3rem 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.3s}.filter-btn:hover{border-color:var(--accent-color);color:var(--accent-color)}.filter-btn.active{background-color:var(--accent-color);border-color:var(--accent-color);color:#fff}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem}.project-card{background-color:var(--card-bg);border-radius:.8rem;overflow:hidden;box-shadow:0 5px 15px var(--shadow);transition:transform .3s,box-shadow .3s}.project-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px var(--shadow)}.project-img-container{position:relative;overflow:hidden;height:200px}.project-img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.project-card:hover .project-img{transform:scale(1.1)}.project-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}.project-card:hover .project-overlay{opacity:1}.project-links{display:flex;gap:1rem}.project-link{padding:.6rem 1rem;background-color:var(--accent-color);color:#fff;border-radius:.4rem;font-size:.85rem;transition:background-color .3s,transform .3s}.project-link:hover{background-color:var(--accent-hover);transform:translateY(-3px)}.project-content{padding:1.5rem}.project-title{font-size:1.4rem;margin-bottom:.8rem;color:var(--text-primary)}.project-description{padding-left:1.2rem;margin-bottom:1rem;color:var(--text-secondary);font-size:.95rem;list-style-type:disc}.project-description li{margin-bottom:.5rem;line-height:1.4}.project-technologies{display:flex;flex-wrap:wrap;gap:.5rem}.project-tech{font-size:.8rem;padding:.3rem .6rem;background-color:#0066ff1a;color:var(--accent-color);border-radius:20px;font-weight:500}@media (max-width: 768px){.projects-grid{grid-template-columns:1fr}.project-filters{flex-wrap:wrap}}.experience-section{padding:80px 0;background-color:var(--bg-secondary)}.section-header h2{font-size:2.5rem;color:var(--text-primary);margin-bottom:15px}.section-divider{height:4px;width:70px;background:var(--accent-color);margin:0 auto 20px;border-radius:2px}.section-header p{font-size:1.1rem;color:var(--text-secondary)}.experience-timeline{position:relative;max-width:900px;margin:0 auto}.experience-timeline:before{content:"";position:absolute;left:50%;transform:translate(-50%);width:4px;height:100%;background-color:var(--accent-color);opacity:.3}.timeline-item{margin-bottom:60px;position:relative;opacity:0}.timeline-item:nth-child(odd){padding-right:calc(50% + 30px)}.timeline-item:nth-child(2n){padding-left:calc(50% + 30px)}.timeline-item:after{content:"";position:absolute;width:20px;height:20px;background-color:var(--accent-color);border-radius:50%;top:20px}.timeline-item:nth-child(odd):after{right:calc(50% - 10px)}.timeline-item:nth-child(2n):after{left:calc(50% - 10px)}.experience-card{background-color:var(--bg-primary);border-radius:10px;box-shadow:0 5px 15px #0000001a;padding:25px;transition:transform .3s ease,box-shadow .3s ease}.experience-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.card-header{margin-bottom:20px;border-bottom:1px solid var(--border-color);padding-bottom:15px}.card-header h3{font-size:1.5rem;color:var(--text-primary);margin-bottom:5px}.company{font-size:1.1rem;font-weight:600;color:var(--accent-color);display:block;margin-bottom:5px}.duration{font-size:.9rem;color:var(--text-secondary);display:block}.card-body p{margin-bottom:20px;color:var(--text-primary);line-height:1.6}.technologies h4,.achievements h4{font-size:1.1rem;margin-bottom:10px;color:var(--text-primary)}.tech-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.tech-tag{background-color:var(--tag-bg);color:var(--tag-text);padding:5px 12px;border-radius:20px;font-size:.85rem;font-weight:500}.achievements ul{list-style-type:none;padding-left:5px}.achievements li{position:relative;padding-left:20px;margin-bottom:8px;line-height:1.5;color:var(--text-primary)}.achievements li:before{content:"→";position:absolute;left:0;color:var(--accent-color)}.achievements{max-height:80px;overflow:hidden;transition:max-height .3s ease}.achievements.expanded{max-height:500px}.expand-btn{background:none;border:none;color:var(--accent-color);cursor:pointer;font-weight:600;padding:5px 0;font-size:.9rem;margin-top:10px;transition:opacity .3s ease}.expand-btn:hover{opacity:.8}@media (max-width: 768px){.experience-timeline:before{left:30px}.timeline-item:nth-child(odd),.timeline-item:nth-child(2n){padding-left:60px;padding-right:0}.timeline-item:nth-child(odd):after,.timeline-item:nth-child(2n):after{left:20px;right:auto}}@media (max-width: 480px){.section-header h2{font-size:2rem}.experience-card{padding:20px 15px}.card-header h3{font-size:1.3rem}.tech-tags{gap:5px}.tech-tag{padding:4px 8px;font-size:.8rem}}.education-section{padding:80px 0;background-color:#f8f9fa}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section-header{text-align:center;margin-bottom:60px;opacity:0}.section-header h2{font-size:2.5rem;color:#333;margin-bottom:15px}.section-divider{height:4px;width:70px;background:#3182ce;margin:0 auto 20px;border-radius:2px}.section-header p{font-size:1.1rem;color:#666}.education-container{display:flex;flex-direction:column;gap:30px;max-width:900px;margin:0 auto}.education-item{opacity:0;transform:translateY(20px)}.education-card{background-color:#fff;border-radius:10px;box-shadow:0 5px 15px #0000001a;padding:25px;transition:transform .3s ease,box-shadow .3s ease;position:relative;overflow:hidden}.education-card:before{content:"";position:absolute;left:0;top:0;height:100%;width:4px;background-color:#3182ce;border-radius:4px 0 0 4px}.education-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.education-card-header{margin-bottom:20px;border-bottom:1px solid #e2e8f0;padding-bottom:15px}.education-card-header h3{font-size:1.5rem;color:#333;margin-bottom:10px}.institution-info{display:flex;justify-content:space-between;margin-bottom:5px;flex-wrap:wrap}.institution{font-size:1.1rem;font-weight:600;color:#3182ce}.location{font-size:.9rem;color:#666}.duration{font-size:.9rem;color:#666;display:block}.education-card-body p{margin-bottom:20px;color:#333;line-height:1.6}.details-toggle{background:none;border:none;color:#3182ce;cursor:pointer;font-weight:600;padding:5px 0;font-size:.9rem;margin-bottom:15px;transition:opacity .3s ease}.details-toggle:hover{opacity:.8}.education-details{margin-top:15px;animation:fadeIn .5s ease forwards}.achievements h4,.key-courses h4{font-size:1.1rem;margin-bottom:10px;color:#333}.achievements ul{list-style-type:none;padding-left:5px;margin-bottom:20px}.achievements li{position:relative;padding-left:20px;margin-bottom:8px;line-height:1.5;color:#333}.achievements li:before{content:"→";position:absolute;left:0;color:#3182ce}.course-tags{display:flex;flex-wrap:wrap;gap:8px}.course-tag{background-color:#ebf4ff;color:#3182ce;padding:5px 12px;border-radius:20px;font-size:.85rem;font-weight:500}.animate-fade-in{animation:fadeIn .8s forwards}.animate-slide-up{animation:slideUp .6s forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.section-header h2{font-size:2rem}.education-card{padding:20px}.education-card-header h3{font-size:1.3rem}.institution-info{flex-direction:column}.institution,.location{margin-bottom:5px}}@media (max-width: 480px){.education-section{padding:60px 0}.course-tags{gap:5px}.course-tag{padding:4px 8px;font-size:.8rem}}.contact{background-color:var(--bg-secondary)}.contact-wrapper{display:flex;gap:3rem;margin-top:3rem}.contact-info{flex:1;display:flex;flex-direction:column;gap:1.5rem}.contact-card{background-color:var(--card-bg);padding:1.5rem;border-radius:.8rem;box-shadow:0 5px 15px var(--shadow);transition:transform .3s}.contact-card:hover{transform:translateY(-5px)}.contact-icon{width:50px;height:50px;background-color:#0066ff1a;color:var(--accent-color);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:1rem}.contact-card h3{font-size:1.2rem;margin-bottom:.5rem;color:var(--text-primary)}.contact-card p{color:var(--text-secondary)}.contact-social{margin-top:1rem}.contact-social h3{font-size:1.2rem;margin-bottom:1rem;color:var(--text-primary)}.social-links{display:flex;gap:1rem}.social-links a{width:40px;height:40px;background-color:var(--card-bg);color:var(--text-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 3px 10px var(--shadow);transition:all .3s}.social-links a:hover{background-color:var(--accent-color);color:#fff;transform:translateY(-3px)}.contact-form{flex:1.5;background-color:var(--card-bg);padding:2rem;border-radius:.8rem;box-shadow:0 5px 15px var(--shadow)}.form-message{padding:1rem;border-radius:.4rem;margin-bottom:1.5rem}.form-message.success{background-color:#27ae601a;color:#27ae60}.form-message.error{background-color:#e74c3c1a;color:#e74c3c}.form-group{margin-bottom:1.5rem}.form-group label{display:block;font-size:.9rem;font-weight:500;margin-bottom:.5rem;color:var(--text-primary)}.form-group input,.form-group textarea{width:100%;padding:.8rem 1rem;border:1px solid var(--border-color);border-radius:.4rem;background-color:var(--bg-primary);color:var(--text-primary);font-family:inherit;transition:border-color .3s}.form-group input:focus,.form-group textarea:focus{border-color:var(--accent-color);outline:none}.contact-form .btn{width:100%;padding:1rem}@media (max-width: 992px){.contact-wrapper{flex-direction:column}.contact-info{display:grid;grid-template-columns:repeat(2,1fr)}.contact-social{grid-column:span 2}}@media (max-width: 576px){.contact-info{grid-template-columns:1fr}.contact-social{grid-column:auto}}.footer{background-color:var(--bg-secondary);padding:4rem 0 2rem;border-top:1px solid var(--border-color)}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;margin-bottom:3rem}.footer-logo a{font-size:1.8rem;font-weight:800;color:var(--text-primary);margin-bottom:1rem;display:inline-block}.footer-logo p{color:var(--text-secondary);margin-top:1rem}.footer-links h3,.footer-contact h3{font-size:1.2rem;margin-bottom:1.5rem;color:var(--text-primary)}.footer-links ul{list-style:none}.footer-links li{margin-bottom:.8rem}.footer-links a{color:var(--text-secondary);transition:color .3s}.footer-links a:hover{color:var(--accent-color)}.footer-contact p{color:var(--text-secondary);margin-bottom:.8rem;display:flex;align-items:center;gap:.5rem}.footer-bottom{padding-top:2rem;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;color:var(--text-secondary);font-size:.9rem}.heart{color:#e74c3c}@media (max-width: 992px){.footer-content{grid-template-columns:1fr 1fr}.footer-logo{grid-column:span 2}}@media (max-width: 576px){.footer-content{grid-template-columns:1fr}.footer-logo{grid-column:auto}.footer-bottom{justify-content:center;text-align:center}}