html{min-height:100%;position:relative}body{margin:0 0 40px}footer{position:absolute;bottom:0;width:100%;height:40px}.container{font-family:Arial,sans-serif;margin:10% auto;width:90%;max-width:1200px}.imgApartadoPrincipal{max-width:37%;display:block;margin:0 auto}.imgHeaderApartadoPrincipal{max-width:10%;width:150px;height:auto}.content{padding:20px;line-height:1.6;color:#333;text-align:justify}.content h2{font-size:1.5em;border-bottom:1px solid #ddd;margin:30px 0 20px}.content p,.content ul li{margin-bottom:20px}.content ul{list-style-type:disc;margin-left:40px}.reference{font-size:.8em;vertical-align:super;color:inherit;text-decoration:none}.reference:hover{text-decoration:underline}.references{margin-top:40px;padding-top:20px;border-top:1px solid #ddd}.references h3{font-size:1.5em;margin-bottom:20px}.center-row-content{display:flex;justify-content:center;margin:5% 0}.container .row h4{text-align:center;cursor:pointer;transition:color .3s ease}.container .row h4:hover{color:#3498db}.error-message{color:#fff;background-color:red;padding:10px;border-radius:5px;margin-top:10px}.success-message{color:#fff;background-color:#0c0;padding:10px;border-radius:5px;margin-top:10px}.arrow-up:after{content:"\2b06\fe0f"}.arrow-down:after{content:"\2b07\fe0f"}.export{margin-top:3%}.btn-red{background-color:#a73737;color:#fff}.btn-red:hover{background-color:#9e0000;color:#fff}.logos{position:absolute;width:100%;top:20px}.logo{max-width:100px;max-height:50px;position:absolute}.logo.left{left:20px}.logo.right{right:5%}.loader-overlay{position:fixed;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:9999}.spinner{border:8px solid #f3f3f3;border-top:8px solid #007bff;border-radius:50%;width:60px;height:60px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}