#mc_embed_signup form {
    display: flex;
    gap: 10px;
    align-items: center;
}

#mc_embed_signup p {
    margin: 0;
}

#mc_embed_signup input[type="email"] {
    flex: 1;
    padding: 10px;
}

#mc_embed_signup input[type="submit"] {
    padding: 10px 20px;
}