/* style.css */
body{background-color:#f0f2f5;display:flex;flex-direction:column;min-height:100vh}.app-header{background-color:#fff;box-shadow:0 2px 4px rgba(0,0,0,.08);padding:.75rem 1.5rem;position:sticky;top:0;z-index:1020}.main-content{flex-grow:1;display:flex;align-items:center;justify-content:center;padding:1.5rem 1rem}.main-container{max-width:800px;width:100%}.tool-card{cursor:pointer;transition:all .2s ease-in-out;height:100%}.tool-card:not(.disabled):hover{transform:translateY(-5px);box-shadow:0 4px 12px rgba(0,0,0,.1)}.tool-card.disabled{cursor:not-allowed;background-color:#e9ecef;opacity:.7}#dropZone{border:3px dashed #ccc;cursor:pointer;transition:all .3s ease}#dropZone.dragover{border-color:#dc3545;background-color:#fbe9ea}.app-footer{text-align:center;padding:1rem;color:#6c757d;background-color:#f8f9fa}