body{
    margin:0;
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:linear-gradient(135deg,#1e3c72,#2a5298);
    font-family:Segoe UI,Arial,sans-serif;
}
.card{
    background:#fff;
    padding:30px 28px;
    border-radius:14px;
    width:100%;
    max-width:380px;
    box-shadow:0 18px 45px rgba(0,0,0,.25);
}
h2{
    text-align:center;
    margin-bottom:22px;
    color:#2a5298;
}
input{
    width:100%;
    padding:14px;
    font-size:16px;
    border-radius:8px;
    border:1px solid #ccc;
    outline:none;
}
button{
    margin-top:20px;
    width:100%;
    padding:14px;
    border:none;
    border-radius:8px;
    background:#2a5298;
    color:#fff;
    font-size:16px;
    cursor:pointer;
}
button:hover{background:#1e3c72}
.note{
    margin-top:15px;
    font-size:13px;
    text-align:center;
    color:#555;
}