*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f5f5f5;color:#333;line-height:1.6}.btn{display:inline-block;padding:8px 16px;background-color:#667eea;color:#fff;border:none;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .3s ease}.btn:hover{background-color:#5568d3}.btn:disabled{background-color:#ccc;cursor:not-allowed}.input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;outline:none;transition:border-color .3s ease}.input:focus{border-color:#667eea}.card{background:white;border-radius:8px;box-shadow:0 2px 8px #0000001a;padding:20px}.center{display:flex;align-items:center;justify-content:center}.text-ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.fade-in{animation:fadeIn .5s ease-in}#app{min-height:100vh;background-color:#f5f5f5}