@import url(vars.css);
@import url(fonts.css);
@import url(errata.css);
@import url(examples.css);



* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    line-height: 1.5rem;
}


html {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-family);
}

h1 {
    font-weight: normal;
    font-size: 2.5rem;
}

h2 {
    font-weight: normal;
    text-align: center;
}

ul {
    list-style-type: none;
}

a {
    text-decoration: none;
    color: inherit;
}

a:hover {
    text-decoration: underline;
}


body > header {
    position: fixed;
    width: 100vw;
    top: 0;

    padding: 0.5rem 0 0.5rem 0;
    background-color: var(--color-background-header);
    color: var(--color-text-header);
    border-top: 0.05rem solid var(--color-border);
    border-bottom: 0.05rem solid var(--color-border);
}

body header nav {
    display: flex;
}

body header nav div {
    flex: 1;
}

body header nav ul li {
    flex: 1;
}

body > .content {
    margin-top: 2rem;
}

nav.top ul {
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: row;
    justify-content: center;
    text-align: center;
}

.three-column {
    width: 100%;
    display: flex;
}

.three-column > * {
    flex: 1;
    height: 100%;
}

.three-column > .left {
    flex: 1;
}

.three-column > .middle {
    flex: 2;
    display: flex;
    flex-direction: column;
}

.three-column > .right {
    flex: 1;
}

.three-column > .middle {
    display: flex;
    margin-top: 2rem;
}

.three-column > .middle > header {
    text-align: center;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

/*.three-column > .middle header h1 {
    margin-bottom: 0.5rem;
}*/

.three-column > .middle header h2 {
    font-style: italic;
}

main {
    margin-top: 1rem;
}

heading {
    text-align: center;
}

p + p {
    margin-top: 1rem;
}

.motto {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    font-style: italic;
}