/* site.css */

 .sticky-header {
     position: fixed;
     bottom: 0;
     left: 0;
     width: 100%;
     background: white;
     box-shadow: 0 -2px 4px rgba(0,0,0,0.1);
     padding: 1rem;
     transform: translateY(100%);
     transition: transform 0.3s ease-in-out;
     z-index: 1000;
 }

 .sticky-header.visible {
     transform: translateY(0);
 }