#ydfc-calculator{max-width:300px;margin:20px auto;padding:20px;background:#f0e6f6;border-radius:10px;box-shadow:0 0 10px rgb(0 0 0 / .1);text-align:center}@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(0)}}#ydfc-hint{font-size:22px;color:#333;margin-bottom:20px;line-height:normal}#ydfc-lucky-number{font-size:18px;color:#e74c3c;font-weight:700;margin-bottom:30px}#ydfc-display{font-size:24px;padding:10px;background:#fff;border-radius:5px;margin-bottom:10px;border:2px solid #9b59b6}#ydfc-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}.ydfc-btn,#ydfc-clear,#ydfc-equals{padding:10px;font-size:18px;border:none;background:#f39c12;border-radius:5px;cursor:pointer;color:#fff}#ydfc-clear{background:#ff6f61;color:#fff}#ydfc-equals{background:#4caf50;color:#fff}.ydfc-btn:hover,#ydfc-clear:hover,#ydfc-equals:hover{opacity:.8}