body {
    margin: 0;
    padding: 0;
    background-color: #0e0e0e;
    color: #fdd835;
    font-family: Arial, sans-serif;
    text-align: center;
}
.logo {
    width: 280px;
    margin-top: 20px;
}
.button-group {
    margin: 30px 0;
}
.btn {
    display: block;
    width: 80%;
    max-width: 300px;
    margin: 10px auto;
    padding: 15px;
    background-color: #fdd835;
    color: black;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
}
.btn:hover {
    background-color: #ffe14f;
}
.gif-footer img {
    width: 100%;
    max-width: 500px;
    margin-top: 30px;
}