.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,14,39,.9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);transition:var(--transition)}.navbar.scrolled{background:rgba(10,14,39,.95);box-shadow:var(--shadow-medium)}.navbar-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:4rem}.navbar-logo{text-decoration:none;color:var(--text-primary)}.logo-text{font-family:Poppins,sans-serif;font-size:1.5rem;font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-menu{display:flex;align-items:center;gap:2rem}.navbar-item{position:relative;display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;text-decoration:none;color:var(--text-secondary);font-weight:500;border-radius:8px;transition:var(--transition);z-index:1}.navbar-item:hover{color:var(--text-primary);background:rgba(255,255,255,.05)}.navbar-item.active{color:var(--primary-accent)}.navbar-icon{font-size:1rem}.active-indicator{position:absolute;bottom:-8px;left:50%;transform:translate(-50%);width:4px;height:4px;background:var(--primary-accent);border-radius:50%}.mobile-menu-btn{display:none;background:none;border:none;color:var(--text-primary);font-size:1.2rem;cursor:pointer;padding:.5rem;transition:var(--transition)}.mobile-menu-btn:hover{color:var(--primary-accent)}.mobile-menu{position:fixed;top:4rem;right:0;width:280px;height:calc(100vh - 4rem);background:rgba(10,14,39,.98);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-left:1px solid rgba(255,255,255,.1);z-index:999}.mobile-menu-content{padding:2rem 1rem;display:flex;flex-direction:column;gap:.5rem}.mobile-menu-item{display:flex;align-items:center;gap:1rem;padding:1rem;text-decoration:none;color:var(--text-secondary);font-weight:500;border-radius:8px;transition:var(--transition)}.mobile-menu-item:hover{color:var(--text-primary);background:rgba(255,255,255,.05)}.mobile-menu-item.active{color:var(--primary-accent);background:rgba(0,212,255,.1)}.mobile-menu-icon{font-size:1.1rem}@media (max-width: 768px){.navbar-container{padding:0 1rem}.navbar-menu{display:none}.mobile-menu-btn{display:block}}@media (max-width: 480px){.mobile-menu{width:100%}}.home-section{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;padding:0 2rem;margin-top:4rem}.particles-canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.home-container{max-width:1200px;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.home-content{display:flex;flex-direction:column;gap:1.5rem}.greeting{font-size:1.2rem;color:var(--primary-accent);font-weight:500}.greeting-text:before{content:"👋";margin-right:.5rem}.name{font-family:Poppins,sans-serif;font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.1;margin:0}.name-text{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.surname{color:var(--text-primary)}.role-container{font-size:clamp(1.2rem,2.5vw,1.5rem);font-weight:600;color:var(--text-secondary)}.role-prefix{color:var(--text-secondary)}.role-typed{color:var(--primary-accent);border-right:2px solid var(--primary-accent);animation:blink 1s infinite}@keyframes blink{0%,50%{border-color:var(--primary-accent)}51%,to{border-color:transparent}}.description{font-size:1.1rem;line-height:1.6;color:var(--text-muted);max-width:500px}.cta-buttons{display:flex;gap:1rem;margin-top:1rem}.social-links{display:flex;gap:1rem;margin-top:2rem}.social-link{display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:50%;color:var(--text-secondary);text-decoration:none;font-size:1.2rem;transition:var(--transition);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.home-image{display:flex;justify-content:center;align-items:center}.image-container{position:relative;width:350px;height:350px}.image-bg{position:absolute;top:-20px;left:-20px;right:-20px;bottom:-20px;background:var(--gradient-accent);border-radius:50%;opacity:.1;animation:pulse 4s ease-in-out infinite}.profile-image{width:100%;height:100%;object-fit:cover;border-radius:50%;border:4px solid var(--primary-accent);box-shadow:0 0 30px #00d4ff4d;transition:var(--transition)}.profile-image:hover{transform:scale(1.05);box-shadow:0 0 40px #00d4ff80}.image-border{position:absolute;top:-10px;left:-10px;right:-10px;bottom:-10px;border:2px solid transparent;border-radius:50%;background:var(--gradient-accent);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:exclude;mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask-composite:exclude;animation:rotate 10s linear infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:.1}50%{transform:scale(1.05);opacity:.2}}.scroll-indicator{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:.5rem;color:var(--text-muted);font-size:.9rem;font-weight:500}.scroll-line{width:2px;height:30px;background:var(--gradient-accent);border-radius:2px}@media (max-width: 968px){.home-container{grid-template-columns:1fr;gap:3rem;text-align:center}.image-container{width:280px;height:280px}}@media (max-width: 768px){.home-section{padding:0 1rem;margin-top:4rem}.cta-buttons{flex-direction:column;align-items:center}.btn-primary,.btn-secondary{width:100%;max-width:280px;justify-content:center}.social-links{justify-content:center}}@media (max-width: 480px){.image-container{width:220px;height:220px}.description{font-size:1rem}}.about-section{padding:6rem 0}.about-content{display:flex;flex-direction:column;gap:4rem}.about-intro{display:grid;grid-template-columns:2fr 1fr;gap:3rem;align-items:center}.intro-text h3{font-size:2rem;margin-bottom:1.5rem;color:var(--text-primary)}.intro-text p{font-size:1.1rem;line-height:1.7;color:var(--text-secondary);margin-bottom:1.5rem}.intro-text .btn-primary{margin-top:1rem}.intro-image{display:flex;justify-content:center}.image-container{position:relative;width:300px;height:300px}.about-image{width:100%;height:100%;object-fit:cover;border-radius:var(--border-radius);border:3px solid var(--primary-accent);box-shadow:var(--shadow-medium);transition:var(--transition)}.about-image:hover{transform:scale(1.02);box-shadow:var(--shadow-heavy)}.image-overlay{position:absolute;top:-10px;left:-10px;right:-10px;bottom:-10px;border:2px solid var(--primary-accent);border-radius:var(--border-radius);opacity:.3;transition:var(--transition)}.stats-section{padding:3rem 0;background:var(--secondary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;padding:0 2rem}.stat-item{text-align:center;padding:1rem}.stat-number{font-size:3rem;font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:.5rem}.stat-label{font-size:1rem;color:var(--text-muted);font-weight:500}.skills-section h3,.experience-section h3,.education-section h3{font-size:2rem;margin-bottom:2rem;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.skill-card{background:var(--secondary-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);text-align:center;transition:var(--transition)}.skill-card:hover{border-color:var(--primary-accent);box-shadow:var(--shadow-medium)}.skill-icon{display:flex;align-items:center;justify-content:center;width:4rem;height:4rem;background:var(--gradient-accent);border-radius:50%;color:var(--text-primary);font-size:1.5rem;margin:0 auto 1rem}.skill-card h4{font-size:1.2rem;margin-bottom:1rem;color:var(--text-primary)}.skill-card p{color:var(--text-muted);line-height:1.6}.timeline{position:relative;padding-left:2rem}.timeline:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gradient-accent)}.timeline-item{position:relative;margin-bottom:3rem;padding-left:2rem}.timeline-marker{position:absolute;left:-1.5rem;top:0;width:1rem;height:1rem;background:var(--primary-accent);border-radius:50%;border:3px solid var(--primary-bg)}.timeline-content{background:var(--secondary-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);transition:var(--transition)}.timeline-content:hover{border-color:var(--primary-accent);transform:translate(5px)}.timeline-header{margin-bottom:1rem}.timeline-header h4{font-size:1.3rem;color:var(--text-primary);margin-bottom:.5rem}.company{display:block;font-size:1.1rem;color:var(--primary-accent);font-weight:600;margin-bottom:.5rem}.period{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:var(--text-muted);font-weight:500}.timeline-content p{color:var(--text-secondary);line-height:1.6}.timeline-item.clickable{transition:all .3s ease}.timeline-item.clickable:hover{transform:translate(10px)}.timeline-item.clickable .timeline-content{cursor:pointer}.timeline-item.clickable:hover .timeline-content{border-color:var(--primary-accent);box-shadow:0 8px 25px #00d4ff4d}.view-details{margin-top:1rem;color:var(--primary-accent);font-size:.9rem;font-weight:500;display:flex;width:20%;align-items:center;opacity:.8;transition:opacity .3s ease}.timeline-item:hover .view-details{opacity:1}.experience-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.8);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.experience-modal{background:var(--primary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);max-width:1000px;width:90%;max-height:90vh;overflow:hidden;box-shadow:0 20px 60px #00000080;display:flex;flex-direction:column;align-items:center;justify-content:center}.modal-header{display:flex;justify-content:space-between;align-items:center;width:100%;padding:1.5rem 2rem;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:1rem;background:var(--secondary-bg)}.close-button{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:.5rem;border-radius:50%;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.modal-content{padding:1.5rem 2rem;max-height:calc(90vh - 80px);overflow-y:auto;flex:1;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--primary-accent) var(--secondary-bg)}.modal-content::-webkit-scrollbar{width:6px}.modal-content::-webkit-scrollbar-track{background:var(--secondary-bg);border-radius:3px}.modal-content::-webkit-scrollbar-thumb{background:var(--primary-accent);border-radius:3px}.modal-content::-webkit-scrollbar-thumb:hover{background:rgba(0,212,255,.8)}.experience-info{margin-bottom:2rem}.info-section{margin-bottom:2rem;padding:1.5rem;background:var(--secondary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1)}.info-section h4{margin:0 0 1rem;color:var(--text-primary);font-size:1.2rem;display:flex;align-items:center;gap:.5rem}.info-section p{margin:.5rem 0;color:var(--text-secondary);line-height:1.6}.info-section strong{color:var(--text-primary)}.skills-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}.skill-tag{background:var(--gradient-accent);color:var(--text-primary);padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:500}.projects-list{list-style:none;padding:0;margin:1rem 0 0}.projects-list li{color:var(--text-secondary);border-bottom:1px solid rgba(255,255,255,.1);position:relative;padding:.75rem 0 .75rem 1.5rem}.projects-list li:before{content:"▶";position:absolute;left:0;color:var(--primary-accent);font-size:.8rem}.projects-list li:last-child{border-bottom:none}.certificate-section{background:var(--secondary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);padding:1.5rem;margin-bottom:1rem}.certificate-section h4{margin:0 0 1rem;color:var(--text-primary);font-size:1.2rem}.certificate-viewer{margin-bottom:1.5rem;border-radius:var(--border-radius);overflow:hidden;border:1px solid rgba(255,255,255,.1);height:400px;min-height:200px}.certificate-viewer iframe{width:100%;height:100%;border:none}.certificate-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.education-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.education-card{background:var(--secondary-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);transition:var(--transition)}.education-card:hover{border-color:var(--primary-accent);box-shadow:var(--shadow-medium)}.education-card h4{font-size:1.3rem;color:var(--text-primary);margin-bottom:.5rem}.institution{display:block;font-size:1.1rem;color:var(--primary-accent);font-weight:600;margin-bottom:.5rem}.education-card .period{margin-bottom:1rem}.education-card p{color:var(--text-secondary);line-height:1.6}@media (min-width: 1200px){.experience-modal{max-width:1100px;width:85%;max-height:85vh}.modal-content{padding:2rem 2.5rem;max-height:calc(85vh - 100px)}.info-section{padding:2rem}}@media (max-width: 968px){.section-header{padding-top:1em}.about-intro{grid-template-columns:1fr;gap:2rem;text-align:center}.skills-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.education-grid{grid-template-columns:1fr}.experience-modal-overlay{padding:2rem 1rem 1rem;align-items:flex-start}.experience-modal{max-width:90%;max-height:85vh;width:100%}.modal-content{padding:1.5rem;max-height:calc(85vh - 80px)}.info-section{padding:1.25rem;margin-bottom:1.5rem}.certificate-viewer{height:300px}}@media (max-width: 820px) and (min-width: 481px){.experience-modal{max-width:95%;max-height:90vh}.modal-content{padding:1.25rem;max-height:calc(90vh - 75px)}.certificate-viewer{height:280px}.skills-tags{gap:.4rem}.skill-tag{padding:.5rem .9rem;font-size:.85rem}}@media (max-width: 768px){.section-header{padding-top:1em}.about-section{padding:4rem 0}.about-content{gap:3rem}.image-container{width:250px;height:250px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.timeline{padding-left:1rem}.timeline-item{padding-left:1.5rem}.timeline-content{padding:1.5rem}.view-details{width:50%}.experience-modal-overlay{padding:2rem .5rem .5rem;align-items:flex-start}.experience-modal{max-width:95%;max-height:90vh;width:100%}.modal-header{padding:1rem 1.5rem;flex-shrink:0}.modal-header h3{font-size:1.2rem;line-height:1.3}.modal-content{padding:1.5rem;max-height:calc(90vh - 80px)}.info-section{padding:1rem;margin-bottom:1.5rem}.certificate-actions{flex-direction:column;gap:.75rem}.btn-primary,.btn-secondary{padding:.75rem 1rem;font-size:.9rem}.skills-tags{gap:.3rem}.skill-tag{padding:.4rem .8rem;font-size:.8rem}}@media (max-width: 480px){.section-header{padding-top:1em}.stats-grid{grid-template-columns:1fr}.stat-number{font-size:2.5rem}.skills-grid,.education-grid{grid-template-columns:1fr}.experience-modal-overlay{padding:1rem .25rem .25rem;align-items:flex-start}.experience-modal{max-width:98%;max-height:95vh;border-radius:8px;width:100%;margin:0}.modal-header{padding:.75rem 1rem;flex-direction:row;justify-content:space-between;align-items:center;text-align:left;position:relative;flex-shrink:0}.modal-header h3{font-size:1.1rem;line-height:1.3;padding-right:2.5rem;margin:0}.close-button{position:absolute;top:.5rem;right:.5rem;font-size:1.2rem;padding:.25rem;min-width:2rem;min-height:2rem}.modal-content{padding:1rem;max-height:calc(95vh - 70px)}.info-section{padding:.75rem;margin-bottom:1rem}.info-section h4{font-size:1rem;margin-bottom:.75rem}.certificate-viewer{height:200px}.certificate-viewer iframe{height:100%}.view-details{width:70%;font-size:.8rem}}.skills-section{padding:6rem 0}.skills-content{margin-bottom:4rem}.category-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:3rem;flex-wrap:wrap}.category-tab{display:flex;align-items:center;gap:.5rem;padding:1rem 2rem;background:var(--secondary-bg);border:1px solid rgba(255,255,255,.1);border-radius:50px;color:var(--text-secondary);font-weight:500;cursor:pointer;transition:var(--transition)}.category-tab:hover{color:var(--text-primary);border-color:var(--primary-accent);background:rgba(0,212,255,.1)}.category-tab.active{background:var(--gradient-accent);color:var(--text-primary);border-color:transparent;box-shadow:var(--shadow-medium)}.tab-icon{font-size:1.1rem}.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}.skill-item{background:var(--secondary-bg);padding:2rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);transition:var(--transition)}.skill-item:hover{border-color:var(--primary-accent);transform:translateY(-2px);box-shadow:var(--shadow-medium)}.skill-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.skill-info{display:flex;align-items:center;gap:.75rem}.skill-icon{font-size:1.5rem}.skill-name{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.skill-percentage{font-size:1rem;font-weight:600;color:var(--primary-accent)}.skill-bar{width:100%;height:8px;background:var(--accent-bg);border-radius:4px;overflow:hidden;position:relative}.skill-progress{height:100%;border-radius:4px;position:relative;overflow:hidden}.skill-progress:after{content:"";position:absolute;top:0;left:0;bottom:0;right:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);animation:shimmer 2s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.certifications-section{margin-bottom:4rem}.certifications-section h3{font-size:2rem;text-align:center;margin-bottom:3rem;color:var(--text-primary)}.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.certification-card{background:var(--secondary-bg);border-radius:var(--border-radius);padding:2rem;border:1px solid rgba(255,255,255,.1);text-align:center;transition:var(--transition);position:relative;overflow:hidden}.certification-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,212,255,.1),transparent);transition:left .5s}.certification-card:hover:before{left:100%}.certification-card:hover{border-color:var(--primary-accent);box-shadow:var(--shadow-medium);transform:translateY(-5px)}.cert-image{width:80px;height:80px;margin:0 auto 1.5rem;background:var(--gradient-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;overflow:hidden}.cert-image img{width:60%;height:60%;object-fit:contain}.cert-image svg{width:60%;height:60%}.cert-content h4{font-size:1.2rem;color:var(--text-primary);margin-bottom:.5rem}.cert-issuer{color:var(--primary-accent);font-weight:500;margin-bottom:.5rem}.cert-date{color:var(--text-muted);font-size:.9rem}.skills-summary{background:var(--secondary-bg);border-radius:var(--border-radius);padding:3rem;border:1px solid rgba(255,255,255,.1);text-align:center}.summary-content h3{font-size:2rem;margin-bottom:2rem;color:var(--text-primary)}.summary-content p{font-size:1.1rem;line-height:1.7;color:var(--text-secondary);margin-bottom:1.5rem;max-width:800px;margin-left:auto;margin-right:auto}.expertise-highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:2rem;margin-top:3rem}.highlight{display:flex;flex-direction:column;align-items:center;gap:.5rem}.highlight strong{font-size:2.5rem;font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.highlight span{color:var(--text-muted);font-weight:500;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.certification-card.clickable{transition:all .3s ease}.certification-card.clickable:hover{cursor:pointer;transform:translateY(-8px);box-shadow:0 10px 30px #00d4ff4d}.certification-card[data-type=profile]:hover{box-shadow:0 10px 30px #ffa1164d}.view-certificate,.view-profile{margin-top:1rem;color:var(--primary-accent);font-size:.9rem;font-weight:500;display:flex;align-items:center;justify-content:center;opacity:.8;transition:opacity .3s ease}.certification-card:hover .view-certificate,.certification-card:hover .view-profile{opacity:1}.certificate-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.8);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.certificate-modal{background:var(--primary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1);max-width:900px;width:100%;max-height:90vh;overflow:hidden;box-shadow:0 20px 60px #00000080}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;border-bottom:1px solid rgba(255,255,255,.1);background:var(--secondary-bg)}.modal-header h3{margin:0;color:var(--text-primary);font-size:1.5rem}.close-button{background:none;border:none;color:var(--text-secondary);font-size:2rem;cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .3s ease}.close-button:hover{background:rgba(255,255,255,.1);color:var(--text-primary)}.modal-content{padding:2rem;max-height:calc(90vh - 140px);overflow-y:auto}.certificate-info{margin-bottom:2rem;padding:1.5rem;background:var(--secondary-bg);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.1)}.certificate-info p{margin:.5rem 0;color:var(--text-secondary);line-height:1.6}.certificate-info strong{color:var(--text-primary)}.certificate-viewer{margin-bottom:2rem;border-radius:var(--border-radius);overflow:hidden;border:1px solid rgba(255,255,255,.1)}.modal-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border-radius:var(--border-radius);text-decoration:none;font-weight:500;display:flex;align-items:center;justify-content:center;transition:all .3s ease;border:none;cursor:pointer;font-size:1rem}.btn-primary{background:var(--gradient-accent);color:var(--text-primary)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #00d4ff66}.btn-secondary{background:var(--secondary-bg);color:var(--text-secondary);border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover{background:rgba(255,255,255,.1);color:var(--text-primary)}@media (max-width: 768px){.section-header{padding-top:1em}.skills-section{padding:4rem 0}.category-tabs{gap:.5rem}.category-tab{padding:.75rem 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