body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f4f4f4}.encabezado{height:400px;background-image:url('../img/fondonav1.webp');filter:invert(100%);display:flex;justify-content:center;align-items:center;text-align:center;margin-bottom:30px}.encabezado h1{font-size:65px;color:#fff;margin:0;text-shadow:1px 1px 5px rgba(0,0,0,.5)}.container{display:flex;flex-wrap:wrap;justify-content:center;padding:20px}.card{background-color:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.1);margin:40px;padding:20px;width:300px;position:relative;text-align:left}.circular-image{width:100px;height:100px;border-radius:50%;position:absolute;top:-50px;left:50%;transform:translateX(-50%);border:4px solid #fff;box-shadow:0 0 10px rgba(0,0,0,.2)}@media (max-width:990px){.encabezado h1{font-size:40px}.card{width:90%}}@media (max-width:480px){.encabezado{height:300px}.encabezado h1{font-size:30px}.circular-image{width:80px;height:80px}}