body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    text-align: center;
    font-family: sans-serif; /* Optional: for a cleaner look */
    background-color: black; /* Added */
    position: relative;
}

header {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    /* You can add more styling here if you like, e.g., padding, border */
}

h1 {
    /* Specific styling for the h1 if needed */
    /* We will style the parts within h1 using spans */
}

.logo-37 {
    font-size: 1.5em; /* Makes "37" bigger, adjust as needed */
    color: red;
}

.logo-keys {
    color: white;
}

footer {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 100%;
}

footer p {
    color: white;
    font-size: 0.8em;
    margin: 0;
    text-align: left;
}