:root {
    --bg: lab(96 0 13);
    --bg-alt: lab(91 0 13);
    --fg: lab(31 -6 -6);
    --primary: lab(42 39 52);
    --dim: lab(45 -4 1);
    --green: lab(38 -40 58);
    --red: lab(38 66 42);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: lab(15 0 0);
        --bg-alt: lab(25 0 0);
        --fg: lab(75 0 0);
        --primary: lab(64 37 50);
        --dim: lab(60 0 0);
        --green: lab(67 -38 55);
        --red: lab(62 63 40);
    }
}

html,
body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: "Lato", Arial, sans-serif;
    line-height: 1.3;
    font-weight: 400;
    text-rendering: optimizeLegibility;
    word-wrap: break-word;
}

body {
    margin-left: auto;
    margin-right: auto;
    max-width: 800px;
    padding: 80px 20px 20px;
}

h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 0;
}

h2,
summary {
    font-size: 24px;
    font-weight: 700;
    margin-top: 20px;
    margin-bottom: 0;
}

summary h2 {
    display: inline;
}

h3 {
    font-size: 18px;
    font-weight: 400;
    font-style: italic;
    margin-top: 20px;
    margin-bottom: 0;
}

p,
details p,
ul {
    font-size: 18px;
    font-weight: 400;
    margin-top: 10px;
    margin-bottom: 0;
}

a {
    color: var(--primary);
}

button {
    background-color: var(--primary);
    border: none;
    border-radius: 4px;
    color: var(--bg);
    cursor: pointer;
    font-size: 20px;
    font-family: inherit;
    padding: 12px 32px;
    transition: background-color 0.2s;
    margin-top: 16px;
}
button:hover {
    background-color: color-mix(in srgb, var(--primary) 80%, black);
}
button:disabled {
    background-color: var(--dim);
    cursor: not-allowed;
}

.footer {
    font-size: 16px;
    margin-top: 32px;
    color: var(--dim);
}

.hero h1 {
    font-size: 48px;
    color: var(--primary);
}

.monospace {
    font-family: monospace;
    font-size: 0.9em;
    background-color: var(--bg-alt);
    padding: 2px 6px;
    border-radius: 4px;
}