:root {
    --bg: #f5f5f5;
    --fg: #222222;
    --muted: #666666;
    --link: #1a73e8;
    --max-width: 920px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #4A4A4A;
        --fg: #F5F5F5;
        --muted: #CFCFCF;
        --link: #7ab0ff;
    }
}

* {
    box-sizing: border-box;
}

html {
    font-size: 18px;
}

body {
    margin: 0;
    padding: 48px 24px;

    background-color: var(--bg);
    color: var(--fg);

    font-family:
        Helvetica,
        Arial,
        sans-serif;

    line-height: 1.7;

    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.container {
    width: min(72%, var(--max-width));
    margin: 0 auto;
}

h2 {
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;

    font-size: 1.2rem;
    font-weight: 600;

    letter-spacing: 0.02em;
}

p {
    margin-top: 0;
    margin-bottom: 1.2rem;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    margin-top: 4rem;

    color: var(--muted);
    font-size: 0.9rem;

    text-align: center;
}

@media (max-width: 700px) {
    body {
        padding: 32px 20px;
    }

    .container {
        width: 100%;
    }

    html {
        font-size: 17px;
    }
}