body{margin:0;font-family:'Arial',sans-serif;background:url('../images/nails_background.webp') no-repeat center center fixed;background-size:cover;scroll-behavior:smooth;animation:fadeIn 1s ease-in;}.container{max-width:450px;margin:auto;background:rgba(255,255,255,0.85);padding:20px;border-radius:12px;margin-top:30px;box-shadow:0 0 10px rgba(0,0,0,0.2);}h1,h2{text-align:center;color:#d63384;}button,.btn{background-color:#d63384;color:white;border:none;border-radius:10px;padding:12px;font-size:16px;width:100%;margin-top:10px;transition:background-color 0.3s ease;}button:hover,.btn:hover{background-color:#c2185b;}@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}