.loader{display:flex;justify-content:center;align-items:center;height:100vh;background-color:#000}.nfc-card{width:60px;height:40px;background:#fff;border-radius:8px;box-shadow:0 0 10px rgba(255,255,255,.3),0 0 20px rgba(255,255,255,.2);margin:0 10px;position:relative;animation:nfc-pulse 1.5s ease-in-out infinite}@keyframes nfc-pulse{0%,to{transform:translateY(0);opacity:1}50%{transform:translateY(-20px);opacity:.7}}.nfc-card:first-child{animation-delay:0s}.nfc-card:nth-child(2){animation-delay:.5s}.nfc-card:nth-child(3){animation-delay:1s}