.header{position:fixed;top:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);z-index:1000;transition:all .3s ease}:root.dark-mode .header{background:#0a0a0af2}.header.scrolled{background:#fffffffa;box-shadow:var(--shadow-sm)}:root.dark-mode .header.scrolled{background:#0a0a0afa}.header-container{max-width:1400px;margin:0 auto;padding:1.25rem 2.5rem;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem}.logo{justify-self:start}.header-controls{justify-self:end}.nav{justify-self:center}.logo{cursor:pointer;transition:transform .2s ease}.logo:hover{transform:translate(-2px)}.logo-text{font-size:1.75rem;font-weight:900;letter-spacing:-.5px;color:var(--text-primary)}.header-controls{display:flex;align-items:center;gap:.75rem}.language-toggle{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px;color:var(--text-secondary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.language-toggle:hover{background:var(--border-color);color:var(--text-primary)}.language-toggle svg{width:16px;height:16px;flex-shrink:0}.dark-mode-toggle{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--text-primary);border:none;border-radius:6px;color:var(--bg-primary);cursor:pointer;transition:all .2s ease}.dark-mode-toggle:hover{opacity:.9;transform:scale(1.05)}.dark-mode-toggle svg{width:20px;height:20px}.nav{display:flex;gap:3rem;align-items:center}.nav a{color:var(--text-primary);text-decoration:none;font-weight:600;font-size:.95rem;transition:all .3s ease;position:relative;padding:.5rem 0}.nav a:before{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--text-primary);transition:width .3s ease}.nav a:hover{color:var(--text-primary)}.nav a:hover:before{width:100%}.menu-toggle{display:none;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer;padding:8px;z-index:1001}.menu-toggle span{width:28px;height:3px;background:var(--text-primary);transition:all .3s ease;border-radius:3px}@media (max-width: 768px){.header-container{padding:1rem 1.5rem;grid-template-columns:1fr auto}.nav{position:fixed;top:100%;left:0;right:0;background:var(--bg-primary);border-bottom:1px solid var(--border-color);flex-direction:column;padding:1rem 0;gap:0;align-items:stretch;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all .3s ease;box-shadow:0 4px 6px #0000001a}:root.dark-mode .nav{background:var(--bg-primary);box-shadow:0 4px 6px #0000004d}.nav.open{transform:translateY(0);opacity:1;visibility:visible}.nav a{font-size:1rem;font-weight:600;padding:.75rem 1.5rem;text-align:left;transition:background-color .2s ease}.nav a:hover{background:var(--bg-secondary)}.nav a:before{display:none}.header-controls{gap:.5rem}.language-toggle span{display:none}.language-toggle{padding:.5rem}.dark-mode-toggle{width:36px;height:36px}.menu-toggle{display:flex;z-index:1001}.menu-toggle.open span:nth-child(1){transform:rotate(45deg) translate(7px,7px)}.menu-toggle.open span:nth-child(2){opacity:0;width:0}.menu-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}}.about{padding:8rem 2rem 4rem;background-color:var(--bg-primary);min-height:100vh}.about-container{max-width:900px;margin:0 auto}.about-header{text-align:center;margin-bottom:3rem}.about-image-wrapper{width:280px;height:280px;margin:0 auto 2rem;flex-shrink:0}.about-image{width:100%;height:100%;border-radius:50%;object-fit:cover}.about-name{font-size:2rem;font-weight:600;color:var(--text-primary);margin:0 0 .5rem}.about-username{font-size:1.25rem;color:var(--text-secondary);margin:0 0 2rem;font-weight:400}.about-info-section{display:flex;flex-direction:column;gap:1rem;margin-bottom:3rem;align-items:center}.info-item{display:flex;flex-direction:column;gap:.25rem;align-items:center}.info-label{font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-weight:500}.info-link{color:var(--text-primary);text-decoration:none;font-size:1rem;transition:color .2s ease}.info-link:hover{color:var(--text-secondary)}.social-links{display:flex;gap:1.5rem;margin-top:1.5rem;align-items:center;justify-content:center}.social-link{display:flex;align-items:center;gap:.5rem;color:var(--text-primary);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s ease}.social-link:hover{color:var(--text-secondary)}.social-link svg{width:20px;height:20px;flex-shrink:0}.about-intro{text-align:left;margin-top:2rem}.intro-title{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0 0 1rem}.intro-divider{height:1px;background:var(--border-color);margin:1.5rem 0}.intro-content{display:flex;flex-direction:column;gap:1rem;font-size:1rem;line-height:1.7;color:var(--text-primary)}.intro-content p{margin:0}.intro-content strong{font-weight:600}.about-divider{height:1px;background:var(--border-color);margin:3rem 0}.about-section{margin-bottom:2rem}.section-title{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0 0 1.5rem}.section-text{font-size:1rem;line-height:1.7;color:var(--text-primary);margin:0}.knowledge-category{margin-bottom:2.5rem}.knowledge-category:last-child{margin-bottom:0}.knowledge-divider{height:1px;background:var(--border-color);margin:2rem 0}.category-title{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0 0 1rem}.tech-icons{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}.tech-icons img{height:30px;width:auto;opacity:.8;transition:opacity .2s ease,transform .2s ease}.tech-icons img:hover{opacity:1;transform:scale(1.1)}@media (max-width: 768px){.about{padding:6rem 1.5rem 3rem}.about-image-wrapper{width:200px;height:200px}.about-name{font-size:1.75rem}.about-username{font-size:1.1rem}.intro-title,.section-title{font-size:1.25rem}.category-title{font-size:1.1rem}.tech-icons{justify-content:center}.social-links{flex-wrap:wrap;gap:1rem}}.projects{padding:6rem 2rem;background-color:var(--bg-primary);min-height:100vh}.projects-container{max-width:900px;margin:0 auto}.projects-title{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0 0 1.5rem}.projects-subtitle{font-size:1rem;color:var(--text-secondary);margin:0 0 2rem;line-height:1.7}.projects-divider{height:1px;background:var(--border-color);margin:0 0 1.5rem}.projects-grid{display:flex;flex-direction:column;gap:2rem}.project-card{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:0;overflow:hidden;transition:border-color .2s ease;display:flex;flex-direction:column}.project-card:hover{border-color:var(--text-secondary)}.project-image-wrapper{position:relative;width:100%;height:200px;overflow:hidden;background-color:var(--bg-secondary);display:flex;align-items:center;justify-content:center;padding:1rem}.project-image{width:100%;height:100%;object-fit:contain;transition:transform .3s ease}.project-card:hover .project-image{transform:scale(1.02)}.project-content{padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.project-name{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0}.project-description{color:var(--text-primary);line-height:1.7;font-size:1rem;margin:0}.project-button{margin-top:.5rem;padding:.75rem 1.5rem;background:var(--bg-primary);color:var(--text-primary);text-decoration:none;border:1px solid var(--border-color);border-radius:0;font-weight:600;text-align:center;transition:all .2s ease;display:inline-block;font-size:.875rem;align-self:flex-start}.project-button:hover{background:var(--text-primary);color:var(--bg-primary);border-color:var(--text-primary)}@media (max-width: 768px){.projects{padding:4rem 1.5rem}.projects-title{font-size:1.25rem}.projects-subtitle{font-size:.9rem}.project-image-wrapper{height:180px}.project-content{padding:1.25rem}.project-name{font-size:1.1rem}.project-description{font-size:.9rem}}.whatsapp-button{position:fixed;bottom:2rem;right:2rem;background:var(--text-primary);color:var(--bg-primary);padding:1rem 1.5rem;border-radius:50px;display:flex;align-items:center;gap:.75rem;text-decoration:none;font-weight:700;font-size:1rem;box-shadow:var(--shadow-md);transition:all .3s ease;z-index:999}.whatsapp-button:hover{background:var(--text-secondary);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.whatsapp-button svg{width:24px;height:24px;flex-shrink:0}.whatsapp-button span{white-space:nowrap}@media (max-width: 768px){.whatsapp-button{bottom:1.5rem;right:1.5rem;padding:.875rem 1.25rem;font-size:.9rem}.whatsapp-button span{display:none}.whatsapp-button svg{width:28px;height:28px}}.App{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.footer{background-color:var(--bg-dark);color:#fff;text-align:center;padding:2rem;margin-top:4rem}.footer p{margin:0;opacity:.8}@media (prefers-reduced-motion: no-preference){*{scroll-behavior:smooth}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #000000;--primary-dark: #000000;--secondary-color: #000000;--accent-color: #000000;--text-primary: #000000;--text-secondary: #4a4a4a;--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-dark: #000000;--border-color: #e0e0e0;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .08);--shadow-md: 0 4px 16px rgba(0, 0, 0, .12);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .16)}:root.dark-mode{--text-primary: #ffffff;--text-secondary: #a0a0a0;--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-dark: #000000;--border-color: #2a2a2a;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-primary);background-color:var(--bg-primary);line-height:1.7}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}html{scroll-behavior:smooth}