body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#0d1117;
    color:white;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    min-height:100vh;
    text-align:center;
}

h1{
    font-size:3rem;
    margin-bottom:10px;
}

p{
    font-size:1.2rem;
    max-width:400px;
    margin:0 20px 30px;
}

button{
    padding:12px 25px;
    font-size:18px;
    border:none;
    border-radius:8px;
    cursor:pointer;
}