*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif}body{background:linear-gradient(135deg,#6a11cb 0,#2575fc 100%);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow:hidden}.container{width:100%;max-width:500px;padding:20px}.success-card{background:rgba(255,255,255,0.95);border-radius:20px;padding:40px 30px;text-align:center;box-shadow:0 15px 35px rgba(0,0,0,0.2);position:relative;overflow:hidden;transform:translateY(50px);opacity:0;animation:slideUp .8s ease forwards}@keyframes slideUp{to{transform:translateY(0);opacity:1}}.success-icon{width:100px;height:100px;background:linear-gradient(135deg,#4facfe 0,#00f2fe 100%);border-radius:50%;margin:0 auto 25px;display:flex;justify-content:center;align-items:center;position:relative;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(79,172,254,0.7)}70%{box-shadow:0 0 0 20px rgba(79,172,254,0)}100%{box-shadow:0 0 0 0 rgba(79,172,254,0)}}.success-icon i{font-size:50px;color:white}h1{color:#2c3e50;margin-bottom:15px;font-size:32px;font-weight:700}p{color:#7f8c8d;margin-bottom:30px;font-size:18px;line-height:1.6}.btn{display:inline-block;padding:15px 40px;background:linear-gradient(135deg,#4facfe 0,#00f2fe 100%);color:white;border-radius:50px;text-decoration:none;font-weight:600;font-size:16px;transition:all .3s ease;box-shadow:0 5px 15px rgba(79,172,254,0.4);position:relative;overflow:hidden}.btn:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(79,172,254,0.6)}.btn:active{transform:translateY(1px)}.confetti{position:absolute;width:10px;height:10px;background-color:#f00;opacity:0}.user-info{background:rgba(79,172,254,0.1);border-radius:10px;padding:15px;margin:25px 0;display:flex;align-items:center;justify-content:center}.user-info i{color:#4facfe;margin-right:10px;font-size:20px}.user-info span{color:#2c3e50;font-weight:600}.decoration{position:absolute;width:200px;height:200px;border-radius:50%;background:linear-gradient(135deg,rgba(79,172,254,0.2) 0,rgba(0,242,254,0.2) 100%);z-index:-1}.decoration:nth-child(1){top:-100px;left:-100px}.decoration:nth-child(2){bottom:-100px;right:-100px}.stars{position:absolute;width:100%;height:100%;top:0;left:0;z-index:-1}.star{position:absolute;background-color:white;border-radius:50%;animation:twinkle 3s infinite}@keyframes twinkle{0%,100%{opacity:.2}50%{opacity:1}}