*{margin:0;padding:0;box-sizing:border-box}
body{
    font-family:Arial,Helvetica,sans-serif;
    background:#eef6ff;
}
.container{
    width:100%;
    max-width:560px;
    margin:40px auto;
}
.card{
    background:#fff;
    border-radius:20px;
    overflow:hidden;
    box-shadow:0 15px 35px rgba(0,0,0,.08);
}
.hero{
    padding:28px;
    background:linear-gradient(135deg,#0ea5e9,#2563eb);
    color:#fff;
}
.hero h1{
    font-size:30px;
}
.content{
    padding:24px;
}
label{
    font-weight:bold;
    display:block;
    margin:14px 0 6px;
}
input{
    width:100%;
    padding:13px;
    border:1px solid #d1d5db;
    border-radius:10px;
    font-size:15px;
}
button{
    width:100%;
    margin-top:20px;
    background:#2563eb;
    color:#fff;
    border:none;
    padding:14px;
    border-radius:10px;
    font-size:16px;
    font-weight:bold;
    cursor:pointer;
}
.success{
    text-align:center;
    padding:40px;
}
.check{
    font-size:70px;
    color:#16a34a;
}