:root {
    --primary: #ddd;
    --dark: #222;
    --light: #fff;
    --shadow: 0 1px 5px rgba(104, 104, 104, 0.8);
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--primary);
}

header {
    background-color: #333;
    color: #fff;
    padding: 1em 0;
    text-align: center;
}

header h1 {
    margin: 10px;
}

nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    padding: 10px;
    justify-content: center;
    /* max-width: 1100px; */
    width: 75%;
    margin: 0 auto;
}

nav ul {
    list-style-type: none;
    display: contents;
    justify-content: center;
}


nav ul li {
    margin: 0 10px;
    list-style-type: none;
    display: flex;
    justify-content: center;
}

nav ul li button {

    width: 100%;
    max-width: 150px;
    padding: 10px;
    font-size: 16px;
    background-color: #215e9f;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

nav ul li button:hover {
    background-color: #777;
}

main {
    padding: 20px;
    text-align: center;
}

#content {
    margin-top: 20px;
    white-space: pre-wrap;
    /* Allows JSON to be displayed nicely */
}

#form-send-crypto {
    margin-top: 20px;
}

#id_amount, #id_fee {
    width: 50px;
}

#submit {
    margin-top: 20px;
}

@media (max-width: 768px) {
    nav {
        grid-template-columns: 1fr;
    }
}


/* Dark mode */
@media (prefers-color-scheme: dark) {

    body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
        background-color: var(--dark);
    }

    html {
        background-color: #222;
        color: white;
    }

    a {
        color: white;
    }

    p a {
        color: white;
    }

}