body{
    margin:0;
    font-family:system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background:#0f172a;
    color:white;
}

.container{
    max-width:900px;
    margin:auto;
    padding:40px 20px;
    text-align:center;
}

h1{
    font-size:48px;
    margin-bottom:10px;
}

.subtitle{
    opacity:0.8;
    margin-bottom:40px;
}

.card{
    background:#1e293b;
    padding:30px;
    border-radius:12px;
    margin-top:30px;
}

button{
    background:#5865F2;
    border:none;
    padding:14px 22px;
    font-size:16px;
    color:white;
    border-radius:8px;
    cursor:pointer;
}

button:hover{
    background:#4752c4;
}

.footer{
    margin-top:50px;
    opacity:0.6;
    font-size:14px;
}