.header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;padding:20px 0;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;flex-direction:column;gap:4px}.logo h1{font-size:28px;font-weight:700;margin:0}.logo-subtitle{font-size:14px;opacity:.9;font-weight:400}.nav{display:flex;gap:30px;align-items:center}.nav-link{color:#fff;font-weight:500;transition:opacity .3s ease;padding:8px 0;border-bottom:2px solid transparent;transition:all .3s ease}.nav-link:hover{opacity:.9;border-bottom-color:#fff}@media (max-width: 768px){.header-content{flex-direction:column;gap:15px}.nav{gap:20px}.logo h1{font-size:24px}}.footer{background-color:var(--text-dark);color:#fff;padding:50px 0 20px;margin-top:auto}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}.footer-section h3{font-size:24px;margin-bottom:10px;color:var(--accent-color)}.footer-section h4{font-size:18px;margin-bottom:15px;color:var(--accent-color)}.footer-description{color:#fffc;line-height:1.6;margin-top:10px}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:10px;color:#fffc;transition:color .3s ease;cursor:pointer}.footer-section ul li:hover{color:var(--accent-color)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;color:#fff9}@media (max-width: 768px){.footer-content{grid-template-columns:1fr;gap:30px}}.hero{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;padding:100px 0;text-align:center}.hero-content{max-width:800px;margin:0 auto}.hero-title{font-size:48px;font-weight:700;margin-bottom:20px;line-height:1.2}.hero-subtitle{font-size:20px;margin-bottom:40px;opacity:.95;line-height:1.6}.btn-hero{font-size:18px;padding:16px 32px;background-color:#fff;color:var(--primary-color)}.btn-hero:hover{background-color:var(--bg-light);transform:translateY(-2px)}.cursos-section{background-color:var(--bg-white)}.section-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:15px;color:var(--text-dark)}.section-description{text-align:center;font-size:18px;color:var(--text-light);max-width:700px;margin:0 auto 50px;line-height:1.6}.cursos-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:40px}.curso-card{background:var(--bg-white);border-radius:12px;padding:40px 30px;box-shadow:var(--shadow);transition:all .3s ease;border:1px solid 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ease}.modulo-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.modulo-titulo{font-size:22px;font-weight:600;margin-bottom:20px;color:var(--primary-color);border-bottom:2px solid var(--border-color);padding-bottom:10px}.modulo-contenido{list-style:none;padding:0}.modulo-contenido li{padding:12px 0 12px 25px;position:relative;color:var(--text-light);line-height:1.6;border-bottom:1px solid var(--border-color)}.modulo-contenido li:last-child{border-bottom:none}.modulo-contenido li:before{content:"✓";position:absolute;left:0;color:var(--primary-color);font-weight:700}.curso-acciones{display:flex;gap:20px;justify-content:center;margin-top:50px;flex-wrap:wrap}@media (max-width: 768px){.hero-title{font-size:36px}.hero-subtitle{font-size:18px}.section-title{font-size:28px}.cursos-grid{grid-template-columns:1fr}.curso-card{padding:30px 20px}.modulos-container{grid-template-columns:1fr}.modulo-card{padding:25px 20px}.curso-acciones{flex-direction:column}.curso-acciones .btn{width:100%}}.App{min-height:100vh;display:flex;flex-direction:column}main{flex:1}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--secondary-color: #1e40af;--accent-color: #3b82f6;--text-dark: #1f2937;--text-light: #6b7280;--bg-light: #f9fafb;--bg-white: #ffffff;--border-color: #e5e7eb;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}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-dark);background-color:var(--bg-light);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:60px 0}.btn{display:inline-block;padding:12px 24px;background-color:var(--primary-color);color:#fff;border-radius:8px;font-weight:600;transition:all .3s ease;text-align:center}.btn:hover{background-color:var(--secondary-color);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-secondary:hover{background-color:var(--primary-color);color:#fff}