:root {
    --default-text: #000;
    --default-text-invert: #fff;

    --dim-text: #666;

    --primary-color: #f55;
    --primary-color-text: #fff;
    --secondary-color: #ed0;
    --secondary-color-text: #000;

    --default-bg: #fff;
    --second-bg:  #ddd;
    --third-bg: #bbb;

    --darkest-bg: #222;

    --inactive-item-bg: #eee;
    --active-item-bg: #ccc;

    --highlight-bg: #f55;
    --highlight-text: #fff;
}

* {
    transition: all .5s;
}

@media (prefers-color-scheme: dark) {
    :root {
        --default-text: #fff;
        --default-text-invert: #000;

        --dim-text: #999;

        --default-bg: #222;
        --second-bg: #777;
        --third-bg: #aaa;

        --darkest-bg: #111;

        --inactive-item-bg: #333;
        --active-item-bg: #666;
    }
}

html {
    color: var(--default-text);
    background: var(--default-bg);
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body {
    margin: 0;
    padding: 0;
}

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

a:hover {
    color: var(--secondary-color);
}


.spread-h {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    margin: 0.5rem 0;
    border-bottom: 1px solid var(--second-bg);
}

ul.numbered {
    counter-reset: li;
    list-style: decimal;
}

ul.numbered li {
    counter-increment: li;
}

.card {
    background: var(--default-bg);
    border: 1px solid var(--second-bg);
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 1rem 0;
}

.clicky-card {
    cursor: pointer;
}

.clicky-card:hover .card {
    background: var(--darkest-bg);
}

button.button,
a.button {
    display: grid;
    place-items: center;
    align-content: center;
    font-weight: bold;
    min-height: 2rem;
    min-width: 4rem;
    background: var(--primary-color);
    color: var(--primary-color-text);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    outline: none;
    border: none;
    cursor: pointer;
}

button.button:hover,
a.button:hover {
    background: var(--secondary-color);
    color: var(--secondary-color-text);
}

table {
    border-collapse: collapse;
    width: 100%;
}

table td {
    border: 1px solid var(--second-bg);
    padding: 0.5rem;
}

table th {
    border: 1px solid var(--second-bg);
    padding: 0.5rem;
    background: var(--second-bg);
}

table tr:nth-child(even) {
    background: var(--default-bg);
    filter: brightness(0.7);
}

table tr:nth-child(odd) {
    background: var(--default-bg);
}

table tr:hover {
    background: var(--default-bg);
    filter: brightness(1.2);
}

tr {
    border: 1px solid var(--second-bg);
}

.hide {
    display: none;
}

.op0 {
    opacity: 0;
}

.mono {
    font-family: monospace;
}