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bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}@media(max-width: 768px){.container{padding:10px}header{padding:20px 15px}h1{font-size:1.5em}#controls{flex-direction:column}button{width:100%}#main-content{flex-direction:column}#json-panel{width:100%;max-height:400px}#json-panel.hidden{transform:translateY(100%)}.footer-content{flex-direction:column;text-align:center;gap:10px}.footer-left{flex-direction:column;gap:10px}.footer-right{width:100%;justify-content:center}}