*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;justify-content:center;align-items:center}.container{background:#fff;padding:3rem 2rem;border-radius:20px;box-shadow:0 20px 60px #0000004d;text-align:center;max-width:500px;width:90%;animation:fadeIn .6s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.title{font-size:3rem;color:#667eea;margin-bottom:1rem;font-weight:700}.subtitle{font-size:1.2rem;color:#666;margin-bottom:2rem}.btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:1rem 2.5rem;font-size:1.1rem;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea66}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea99}.btn:active{transform:translateY(0)}.message{margin-top:1.5rem;font-size:1.1rem;color:#764ba2;font-weight:600;min-height:1.5rem;animation:slideIn .4s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}