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i{margin-right:.5rem}.cta-button{background:var(--primary-color);color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;border-radius:.5rem;cursor:pointer;transition:background .3s ease}.cta-button:hover{background:var(--secondary-color)}.about,.skills,.projects,.education,.experience,.certifications,.contact{padding:6rem 0}.about h2,.skills h2,.projects h2,.education h2,.experience h2,.certifications h2,.contact h2{font-size:2.5rem;margin-bottom:2rem;text-align:center}.skills,.education,.certifications,.contact{background:var(--card-background)}.about{padding:6rem 0;background:var(--background)}.about h2{font-size:2.5rem;margin-bottom:2.5rem;text-align:center;color:var(--text-color);position:relative}.about h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:3px;background:var(--primary-color);border-radius:2px}.about-content{max-width:850px;margin:0 auto;padding:0 2rem}.about-text{background:var(--card-surface);padding:3.5rem;border-radius:16px;border:1px solid var(--border-color);box-shadow:0 10px 30px -10px #0000000d;transition:all .3s ease}.about-text:hover{border-color:#2563eb33;box-shadow:0 15px 35px -10px #2563eb1a}.about-text p{font-size:1.15rem;line-height:1.85;color:var(--text-color);text-align:center}@media (max-width: 768px){.about{padding:4rem 0}.about-content{padding:0 1rem}.about-text{padding:2.5rem 1.5rem}.about-text p{font-size:1.05rem;line-height:1.7}}.skills-container{max-width:1000px;margin:0 auto}.skill-category{margin-bottom:3rem}.skill-category h3{text-align:center;margin-bottom:1.5rem;color:var(--primary-color)}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem}.skill-card{background:var(--card-surface);padding:2rem;border-radius:.5rem;text-align:center;box-shadow:0 4px 6px #0000001a;transition:all .3s cubic-bezier(.4,0,.2,1);border:2px solid transparent;position:relative;overflow:hidden}.skill-card:hover{transform:translateY(-8px) scale(1.05);box-shadow:0 12px 24px #3b82f626;border-color:var(--primary-color);color:var(--secondary-color);font-weight:600}.projects{position:relative;background:var(--background);padding:6rem 0}.projects h2{font-size:2.5rem;margin-bottom:3rem;text-align:center;position:relative}.projects h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:3px;background:var(--primary-color);border-radius:2px}.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2.5rem;max-width:1200px;margin:0 auto;padding:1rem}.project-flip-card{background-color:transparent;height:420px;perspective:1000px;cursor:pointer}.project-flip-inner{position:relative;width:100%;height:100%;text-align:left;transition:transform .8s cubic-bezier(.175,.885,.32,1.275);transform-style:preserve-3d}.project-flip-card:hover .project-flip-inner{transform:rotateY(180deg)}.project-flip-front,.project-flip-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:16px;padding:2.5rem;display:flex;flex-direction:column;border:1px solid var(--border-color)}.project-flip-front{background:linear-gradient(145deg,var(--card-surface),var(--background));color:var(--text-color);justify-content:center;box-shadow:0 10px 30px -10px #0000001a;z-index:2}.project-category{font-size:.75rem;text-transform:uppercase;letter-spacing:2px;color:var(--primary-color);margin-bottom:1rem;font-weight:700}.project-flip-front h3{font-size:1.8rem;color:var(--text-color);margin-bottom:1rem;line-height:1.3}.front-indicator{margin-top:auto;font-size:.9rem;color:var(--light-text);font-weight:500;transition:transform .3s ease}.project-flip-card:hover 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ease;font-size:.9rem}.project-link:hover{color:#fff;background:var(--primary-color);transform:translateY(-2px)}.timeline{max-width:800px;margin:0 auto;position:relative}.timeline:before{content:"";position:absolute;top:0;left:20px;height:100%;width:2px;background:var(--primary-color)}.timeline-item{padding-left:50px;position:relative;margin-bottom:2.5rem}.timeline-item:before{content:"";position:absolute;left:10px;top:10px;width:20px;height:20px;border-radius:50%;background:var(--primary-color)}.timeline-content{background:var(--card-surface);padding:1.5rem;border-radius:.5rem;box-shadow:0 4px 6px #0000001a}.timeline-content h3{color:var(--primary-color)}.timeline-date{font-size:.9rem;color:var(--light-text);margin-top:.5rem}.experience-card{background:var(--card-surface);padding:2rem;border-radius:.5rem;box-shadow:0 4px 6px #0000001a;max-width:800px;margin:0 auto}.experience-header h3{color:var(--primary-color)}.experience-date{color:var(--light-text);font-size:.9rem}.experience-details{margin:1rem 0;padding-left:1.5rem}.experience-link{display:inline-block;color:var(--primary-color);font-weight:500;margin-top:.5rem}.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;max-width:1000px;margin:0 auto}.certification-card{background:var(--card-surface);padding:1.5rem;border-radius:.5rem;box-shadow:0 4px 6px #0000001a;transition:transform .3s ease,border-color .3s ease;border:2px solid transparent;text-decoration:none;display:block}.certification-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.certification-card h3{color:var(--primary-color);margin-bottom:.5rem}.certification-card p{color:var(--light-text)}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:2rem;max-width:1000px;margin:0 auto}.contact-form{display:flex;flex-direction:column;gap:1rem}.contact-form input,.contact-form textarea{padding:1rem;border:1px solid var(--border-color);border-radius:.5rem;font-size:1rem;background:var(--card-surface);color:var(--text-color)}.contact-form textarea{min-height:150px;resize:vertical}.submit-button{background:var(--primary-color);color:#fff;border:none;padding:1rem;font-size:1.1rem;border-radius:.5rem;cursor:pointer;transition:background .3s ease}.submit-button:hover{background:var(--secondary-color)}.contact-info{background:var(--card-surface);padding:2rem;border-radius:.5rem;box-shadow:0 4px 6px #0000001a}.contact-info p{margin-bottom:1rem;display:flex;align-items:center}.contact-info i{margin-right:.5rem;color:var(--primary-color)}.contact-info a{color:var(--text-color);text-decoration:none}.contact-info a:hover{color:var(--primary-color)}footer{text-align:center;padding:2rem 0;background:#111827;color:#fff}.scroll-top-btn{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 10px #0003;transition:all .3s ease;z-index:99}.scroll-top-btn:hover{background:var(--secondary-color);transform:translateY(-5px)}.loader-container{height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;background:linear-gradient(135deg,var(--background) 0%,var(--card-background) 100%);position:relative}.loader-logo{font-size:3rem;font-weight:800;color:var(--primary-color);margin-bottom:1rem;animation:fadeInUp 1s ease-out}.loader-subtitle{font-size:1.1rem;color:var(--light-text);margin-bottom:2rem;animation:fadeInUp 1s ease-out .3s both}.loader-bar{width:200px;height:4px;background:var(--border-color);border-radius:2px;overflow:hidden;position:relative}.loader-progress{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));width:0%;animation:progress 2s ease-in-out infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes progress{0%{width:0%}50%{width:70%}to{width:100%}}@media (max-width: 768px){.portfolio{padding:0 1rem}.hero{padding:4rem 0;text-align:center}.hero h1{font-size:2rem}.typing-text{justify-content:center;font-size:1.5rem}.social-links{flex-wrap:wrap;justify-content:center}.cta-button{width:100%}.about h2,.skills h2,.projects h2,.education h2,.experience h2,.certifications h2,.contact h2{font-size:2rem}.project-card{flex:0 0 320px;padding:1.5rem}.project-card h3{font-size:1.3rem}.project-links{flex-direction:column}.nav-btn{width:40px;height:40px;font-size:1.1rem}.contact-content{grid-template-columns:1fr}.submit-button{width:100%}.mobile-menu-btn{display:block}.nav-links{display:none;position:fixed;top:60px;left:0;right:0;background:var(--header-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-direction:column;padding:1rem;box-shadow:0 4px 6px #0000001a}.nav-links.active{display:flex}.nav-links a{padding:1rem;border-bottom:1px solid var(--border-color);text-align:center}}@media (max-width: 480px){.hero h1{font-size:1.75rem}.nav-brand{font-size:1.2rem}.project-card{flex:0 0 260px}.timeline:before{left:8px}.timeline-item{padding-left:20px}.timeline-item:before{width:16px;height:16px;left:0}}@supports (-webkit-touch-callout: none){.hero{min-height:-webkit-fill-available}}