body {
    margin:0;
    font-family: Arial;
    background:#f4f7f3;
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
}
.container {
    background:white;
    padding:40px;
    border-radius:12px;
    text-align:center;
    box-shadow:0 10px 30px rgba(0,0,0,0.1);
}
.logo {
    width:140px;
    margin-bottom:20px;
}
.btn {
    display:block;
    margin:15px 0;
    padding:14px;
    text-decoration:none;
    border-radius:6px;
    font-weight:bold;
}
.primary {
    background:#2e7d32;
    color:white;
}
.secondary {
    background:#e8f5e9;
    color:#2e7d32;
}