:root{color:#24352d background: #f5f6f2;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,BlinkMacsystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0}.app{max-width:1120px;padding:64px 24 px;margin:0 auto}.cabecera{margin-bottom:40px}.cabecera h1{letter-spacing:-.04em;margin:0 0 12px;font-size:clamp(2rem,5vw,3rem)}.cabecera p{color:#53645a;margin:0;font-size:1.125rem;line-height:1.6}.secciones{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.tarjeta{background:#fff;border:1px solid #dce3db;border-radius:16px;padding:28px}.tarjeta h2{margin:0 0 12px;font-size:1.25rem}.tarjeta p{color:#53645a;line-heigth:1.65;margin:0}@media (width<=800px){.app{padding:32px 20px}.secciones{grid-template-columns:1fr}}